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  • Amino Acid Sequence  (67)
  • American Association for the Advancement of Science (AAAS)  (67)
  • American Chemical Society (ACS)
  • National Academy of Sciences
  • PANGAEA
  • 1985-1989  (67)
  • 1987  (67)
Collection
Keywords
Publisher
  • American Association for the Advancement of Science (AAAS)  (67)
  • American Chemical Society (ACS)
  • National Academy of Sciences
  • PANGAEA
Years
  • 1985-1989  (67)
Year
  • 1
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    Mapping the main immunogenic region and toxin-binding site of the nicotinic acetylcholine receptor (1987)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1987-01-02
    Description: The alpha-chain of the nicotinic acetylcholine receptor carries the binding sites both for cholinergic ligands and for most experimentally induced or naturally occurring antibodies to the native receptor. By means of expression cloning in Escherichia coli, fusion proteins were derived from specific fragments of a complementary DNA encoding the mouse alpha-chain, allowing the mapping of the toxin-binding site to residues 160-216 and the main immunogenic region to residues 6-85. This approach permits the independent study of different functional domains of a complex receptor molecule and should be generally applicable to other proteins for which complementary DNA clones are available.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barkas, T -- Mauron, A -- Roth, B -- Alliod, C -- Tzartos, S J -- Ballivet, M -- New York, N.Y. -- Science. 1987 Jan 2;235(4784):77-80.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2432658" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Antibodies, Monoclonal/immunology ; Binding Sites ; Binding, Competitive ; Bungarotoxins/metabolism ; Cloning, Molecular ; Epitopes ; Humans ; Immunosorbent Techniques ; Ligands ; Mice ; Receptors, Nicotinic/genetics/*immunology ; Recombinant Fusion Proteins/immunology ; Species Specificity ; Structure-Activity Relationship
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 2
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    Sequence analysis on microcomputers (1987)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1987-10-02
    Description: Overall, each of the program packages performed their tasks satisfactorily. For analyses where there was a well-defined answer, such as a search for a restriction site, there were few significant differences between the program sets. However, for tasks in which a degree of flexibility is desirable, such as homology or similarity determinations and database searches, DNASTAR consistently afforded the user more options in conducting the required analysis than did the other two packages. However, for laboratories where sequence analysis is not a major effort and the expense of a full sequence analysis workstation cannot be justified, MicroGenie and IBI-Pustell offer a satisfactory alternative. MicroGenie is a polished program system. Many may find that its user interface is more "user friendly" than the standard menu-driven interfaces. Its system of filing sequences under individual passwords facilitates use by more than one person. MicroGenie uses a hardware device for software protection that occupies a card slot in the computer on which it is used. Although I am sympathetic to the problem of software piracy, I feel that a less drastic solution is in order for a program likely to be sharing limited computer space with other software packages. The IBI-Pustell package performs the required analysis functions as accurately and quickly as MicroGenie but it lacks the clearness and ease of use. The menu system seems disjointed, and new or infrequent users often find themselves at apparent "dead-end menus" where the only clear alternative is to restart the entire program package. It is suggested from published accounts that the user interface is going to be upgraded and perhaps when that version is available, use of the system will be improved. The documentation accompanying each package was relatively clear as to how to run the programs, but all three packages assumed that the user was familiar with the computational techniques employed. MicroGenie and IBI-Pustell further complicated their documentation by mixing instructions for the version based on floppy disk operation with that for the hard disk version.(ABSTRACT TRUNCATED AT 400 WORDS)〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cannon, G C -- New York, N.Y. -- Science. 1987 Oct 2;238(4823):97-103.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Roche Institute of Molecular Biology, Roche Research Center, Nutley, NJ 07110.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3659902" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Base Sequence ; Sequence Homology, Nucleic Acid ; *Software
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 3
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    Debate over potential AIDS drug (1987)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1987-07-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barnes, D M -- New York, N.Y. -- Science. 1987 Jul 10;237(4811):128-30.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3037699" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/*drug therapy ; Amino Acid Sequence ; Antigens, Differentiation, T-Lymphocyte ; Antigens, Surface/metabolism ; Antiviral Agents/pharmacology/*therapeutic use ; Brain/metabolism ; Depression, Chemical ; Drug Evaluation ; HIV/drug effects/physiology ; HIV Envelope Protein gp120 ; Humans ; Male ; Oligopeptides/pharmacology/*therapeutic use ; Peptide T ; Protein Binding/drug effects ; Receptors, Virus/drug effects ; Retroviridae Proteins/metabolism ; Virus Replication/drug effects
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 4
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    A new prosomatostatin-derived peptide reveals a pattern for prohormone cleavage at monobasic sites (1987)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1987-11-20
    Description: Cleavage of the peptide bonds of preprosomatostatin at basic residues near the carboxyl terminus yields somatostatin-14, somatostatin-28, and somatostatin-28 (1-12). However, little is known about the molecular forms derived from the amino terminal portion of the precursor, even though this part of the prohormone is highly conserved through evolution. By using an antibody against the amino terminus of prosomatostatin, a decapeptide with the structure Ala-Pro-Ser-Asp-Pro-Arg-Leu-Arg-Gln-Phe, corresponding to preprosomatostatin (25-34), was isolated from the endocrine portion of the rat stomach, the gastric antrum. The antral decapeptide may represent a bioactive product generated from prosomatostatin after a monobasic cleavage similar to that involved in the formation of somatostatin-28. In fact, a monobasic cleavage requires two basic residues and a domain containing nonpolar amino acids such as alanine or leucine, or both.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Benoit, R -- Ling, N -- Esch, F -- AM I88II/AM/NIADDK NIH HHS/ -- HD 09690/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1987 Nov 20;238(4830):1126-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Montreal General Hospital Research Institute, Department of Medicine, McGill University, Quebec, Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2891188" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Hydrolysis ; Immunologic Techniques ; Peptide Fragments/physiology ; Protein Precursors/immunology/*physiology ; Protein Processing, Post-Translational ; Rats ; Somatostatin/immunology/*physiology ; Stomach/*physiology ; Structure-Activity Relationship
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 5
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    A novel thyroid hormone receptor encoded by a cDNA clone from a human testis library (1987)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1987-11-06
    Description: The c-erbA gene belongs to a multigene family that encodes transcriptional regulatory proteins including the v-erbA oncogene product, steroid hormone receptors, and the vitamin D3 receptor. A v-erbA DNA probe encoding the DNA-binding region of the v-erbA protein was used to screen a human complementary DNA testis library. One of the clones isolated, erbA-T-1, was found to encode a 490-amino acid protein (erbA-T). The erbA-T polypeptide shows high homology with the proteins encoded by both the chicken c-erbA and the human c-erbA-beta genes but is most closely related to the chicken gene. The chicken c-erbA and the human c-erbA-beta genes encode high-affinity receptors for thyroid hormone, and here it is shown that the erbA-T protein binds specifically to 3,5,3'-triiodo-L-thyronine with a dissociation constant of 3.8 +/- 0.2 x 10(-10) M. These data imply that more than one thyroid hormone receptor exists in humans and that these receptors might have different tissue- and gene-activating specificities.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Benbrook, D -- Pfahl, M -- DK-35083/DK/NIDDK NIH HHS/ -- New York, N.Y. -- Science. 1987 Nov 6;238(4828):788-91.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Cancer Research Center, La Jolla Cancer Research Foundation, CA 92037.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3672126" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; *Cloning, Molecular ; DNA/*metabolism ; *Genes ; Humans ; Kinetics ; Male ; Protein Biosynthesis ; *Proto-Oncogenes ; Receptors, Thyroid Hormone/*genetics/metabolism ; Testis/*metabolism ; Transcription, Genetic
    Print ISSN: 0036-8075
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  • 6
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    Generation of a hybrid sequence-specific single-stranded deoxyribonuclease (1987)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1987-12-04
    Description: The relatively nonspecific single-stranded deoxyribonuclease, staphylococcal nuclease, was selectively fused to an oligonucleotide binding site of defined sequence to generate a hybrid enzyme. A cysteine was substituted for Lys116 in the enzyme by oligonucleotide-directed mutagenesis and coupled to an oligonucleotide that contained a 3'-thiol. The resulting hybrid enzyme cleaved single-stranded DNA at sites adjacent to the oligonucleotide binding site.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Corey, D R -- Schultz, P G -- New York, N.Y. -- Science. 1987 Dec 4;238(4832):1401-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemistry, University of California, Berkeley 94720.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3685986" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Base Sequence ; DNA, Single-Stranded/metabolism ; Hydrolysis ; Micrococcal Nuclease/*genetics/metabolism ; Models, Molecular ; Mutation ; Protein Conformation ; Staphylococcus aureus/enzymology/genetics ; Substrate Specificity
    Print ISSN: 0036-8075
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  • 7
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    Characterization and chromosomal localization of a cDNA encoding brain amyloid of Alzheimer's disease (1987)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1987-02-20
    Description: Four clones were isolated from an adult human brain complementary DNA library with an oligonucleotide probe corresponding to the first 20 amino acids of the beta peptide of brain amyloid from Alzheimer's disease. The open reading frame of the sequenced clone coded for 97 amino acids, including the known amino acid sequence of this polypeptide. The 3.5-kilobase messenger RNA was detected in mammalian brains and human thymus. The gene is highly conserved in evolution and has been mapped to human chromosome 21.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Goldgaber, D -- Lerman, M I -- McBride, O W -- Saffiotti, U -- Gajdusek, D C -- New York, N.Y. -- Science. 1987 Feb 20;235(4791):877-80.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3810169" target="_blank"〉PubMed〈/a〉
    Keywords: Alzheimer Disease/*genetics ; Amino Acid Sequence ; Amyloid/*genetics ; *Chromosomes, Human, Pair 21 ; Cloning, Molecular ; DNA/genetics ; Humans ; Protein Conformation ; RNA, Messenger/genetics ; Solubility ; Transcription, Genetic
    Print ISSN: 0036-8075
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  • 8
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    Alpha 2-antiplasmin Enschede: alanine insertion and abolition of plasmin inhibitory activity (1987)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1987-10-09
    Description: An abnormal alpha 2-antiplasmin that is associated with a serious bleeding tendency has been found in a Dutch family and is referred to as alpha 2-antiplasmin Enschede. This abnormal alpha 2-antiplasmin is converted from an inhibitor of plasmin to a substrate. The molecular defect of alpha 2-antiplasmin Enschede, as revealed by sequencing of cloned genomic DNA fragments, consists of an alanine insertion near the active site region of the molecule. Substitution of this fragment into complementary DNA for a wild-type alpha 2-antiplasmin yields a translation product with physical and functional properties typical of the abnormal alpha 2-antiplasmin Enschede. The naturally occurring mutant may serve as a model for investigating the structures that determine the properties of an inhibitor versus those of a substrate in serine protease inhibitors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Holmes, W E -- Lijnen, H R -- Nelles, L -- Kluft, C -- Nieuwenhuis, H K -- Rijken, D C -- Collen, D -- New York, N.Y. -- Science. 1987 Oct 9;238(4824):209-11.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Thrombosis and Vascular Research, University of Leuven, Belgium.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2958938" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Base Sequence ; DNA/metabolism ; Fibrinolysin/*antagonists & inhibitors ; *Genes ; Humans ; Molecular Sequence Data ; *Mutation ; Protein Biosynthesis ; alpha-2-Antiplasmin/*genetics/metabolism
    Print ISSN: 0036-8075
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  • 9
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    Protein kinase C contains a pseudosubstrate prototope in its regulatory domain (1987)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1987-12-18
    Description: The regulatory domain of protein kinase C contains an amino acid sequence between residues 19 and 36 that resembles a substrate phosphorylation site in its distribution of basic residue recognition determinants. The corresponding synthetic peptide (Arg19-Phe-Ala-Arg-Lys-Gly-Ala25-Leu-Arg-Gln-Lys-Asn-Val-His -Glu-Val-Lys-Asn36) acts as a potent substrate antagonist with an inhibitory constant of 147 +/- 9 nM. It is a specific inhibitor of protein kinase C and inhibits both autophosphorylation and protein substrate phosphorylation. Substitution of Ala25 with serine transforms the pseudosubstrate into a potent substrate. These results demonstrate that the conserved region of the regulatory domain (residues 19 to 36) of protein kinase C has the secondary structural features of a pseudosubstrate and may be responsible for maintaining the enzyme in the inactive form in the absence of allosteric activators such as phospholipids.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉House, C -- Kemp, B E -- New York, N.Y. -- Science. 1987 Dec 18;238(4834):1726-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medicine, University of Melbourne, Repatriation General Hospital, West Heidelberg, Victoria, Australia.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3686012" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Homeostasis ; Kinetics ; Myosin-Light-Chain Kinase/metabolism ; Protein Kinase C/*metabolism ; Substrate Specificity
    Print ISSN: 0036-8075
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  • 10
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    Functional analysis of a complementary DNA for the 50-kilodalton subunit of calmodulin kinase II (1987)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1987-07-17
    Description: The calcium-calmodulin-dependent protein kinase II is a major component of brain synaptic junctions and has been proposed to play a variety of important roles in brain function. A complementary DNA representing a portion of the smaller 50-kilodalton subunit of the rat brain enzyme has been cloned and sequenced. The calmodulin-binding region has been identified and a synthetic analog prepared that binds calmodulin with high affinity in the presence of calcium. Like the 50-kilodalton kinase polypeptide, the concentration of the messenger RNA varies both neuroanatomically and during postnatal development of the brain. The broad tissue and species cross-reactivity of the complementary DNA suggests that the 50-kilodalton subunit found in rat brain is evolutionarily conserved and is the product of a single gene.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hanley, R M -- Means, A R -- Ono, T -- Kemp, B E -- Burgin, K E -- Waxham, N -- Kelly, P T -- New York, N.Y. -- Science. 1987 Jul 17;237(4812):293-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3037704" target="_blank"〉PubMed〈/a〉
    Keywords: Age Factors ; Amino Acid Sequence ; Animals ; Base Sequence ; Biological Assay ; Brain/enzymology/growth & development ; Calcium-Calmodulin-Dependent Protein Kinases ; Cloning, Molecular ; DNA/genetics ; Protein Kinases/*genetics ; RNA, Messenger/genetics ; Rats ; Species Specificity
    Print ISSN: 0036-8075
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  • 11
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    A novel putative tyrosine kinase receptor encoded by the eph gene (1987)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1987-12-18
    Description: Growth factors and their receptors are involved in the regulation of cell proliferation and also play a key role in oncogenesis. In this study, a novel putative kinase receptor gene, termed eph, has been identified and characterized by molecular cloning. Its primary structure is similar to that of tyrosine kinase receptors thus far cloned and includes a cysteine-rich region in the extracellular domain. However, other features of the sequence distinguish the eph gene product from known receptors with tyrosine kinase activity. Thus the eph protein may define a new class of these molecules. The eph gene is overexpressed in several human carcinomas, suggesting that this gene may be involved in the neoplastic process of some tumors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hirai, H -- Maru, Y -- Hagiwara, K -- Nishida, J -- Takaku, F -- New York, N.Y. -- Science. 1987 Dec 18;238(4834):1717-20.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Third Department of Internal Medicine, Faculty of Medicine, University of Tokyo, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2825356" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Base Sequence ; DNA Restriction Enzymes ; *Genes ; Humans ; Molecular Sequence Data ; Neoplasms/metabolism ; Oncogenes ; Protein-Tyrosine Kinases/metabolism ; Receptor, Epidermal Growth Factor/*genetics ; Transcription, Genetic
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  • 12
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    Conservation of the Duchenne muscular dystrophy gene in mice and humans (1987)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1987-10-16
    Description: A portion of the Duchenne muscular dystrophy (DMD) gene transcript from human fetal skeletal muscle and mouse adult heart was sequenced, representing approximately 25 percent of the total, 14-kb DMD transcript. The nucleic acid and predicted amino acid sequences from the two species are nearly 90 percent homologous. The amino acid sequence that is predicted from this portion of the DMD gene indicates that the protein product might serve a structural role in muscle, but the abundance and tissue distribution of the messenger RNA suggests that the DMD protein is not nebulin.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hoffman, E P -- Monaco, A P -- Feener, C C -- Kunkel, L M -- 2T 32 GM07753-07/GM/NIGMS NIH HHS/ -- HD18658/HD/NICHD NIH HHS/ -- R01 NS23740/NS/NINDS NIH HHS/ -- T32 GM007753/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1987 Oct 16;238(4825):347-50.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Genetics, Children's Hospital, Boston, MA 02115.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3659917" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; DNA/*genetics ; DNA, Recombinant ; Exons ; Humans ; Male ; Mice ; Molecular Sequence Data ; Muscle Proteins/genetics ; Muscles/analysis/embryology ; Muscular Dystrophies/*genetics ; Muscular Dystrophy, Animal/*genetics ; Myocardium/analysis ; Nucleic Acid Hybridization ; RNA, Messenger/genetics ; X Chromosome
    Print ISSN: 0036-8075
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  • 13
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    Many random sequences functionally replace the secretion signal sequence of yeast invertase (1987)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1987-01-16
    Description: In the process of protein secretion, amino-terminal signal sequences are key recognition elements; however, the relation between the primary sequence of an amino-terminal peptide and its ability to function as an export signal remains obscure. The limits of variation permitted for functional signal sequences were determined by replacement of the normal signal sequence of Saccharomyces cerevisiae invertase with essentially random peptide sequences. Since about one-fifth of these sequences can function as an export signal the specificity with which signal sequences are recognized must be very low.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kaiser, C A -- Preuss, D -- Grisafi, P -- Botstein, D -- GM18973/GM/NIGMS NIH HHS/ -- GM21253/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1987 Jan 16;235(4786):312-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3541205" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Cytoplasm/enzymology ; Extracellular Space/enzymology ; Glycoside Hydrolases/*secretion ; Glycosylation ; Protein Sorting Signals/*physiology ; Saccharomyces cerevisiae/enzymology/metabolism ; Structure-Activity Relationship ; beta-Fructofuranosidase
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  • 14
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    Functional regions of the envelope glycoprotein of human immunodeficiency virus type 1 (1987)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1987-09-11
    Description: The envelope of the human immunodeficiency virus type 1 (HIV-1) plays a central role in the process of virus entry into the host cell and in the cytopathicity of the virus for lymphocytes bearing the CD4 molecule. Mutations that affect the ability of the envelope glycoprotein to form syncytia in CD4+ cells can be divided into five groups: those that decrease the binding of the envelope protein to the CD4 molecule, those that prevent a post-binding fusion reaction, those that disrupt the anchorage of the envelope glycoprotein in the membrane, those that affect the association of the two subunits of the envelope glycoprotein, and those that affect post-translational proteolytic processing of the envelope precursor protein. These findings provide a functional model of the HIV envelope glycoprotein.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kowalski, M -- Potz, J -- Basiripour, L -- Dorfman, T -- Goh, W C -- Terwilliger, E -- Dayton, A -- Rosen, C -- Haseltine, W -- Sodroski, J -- AI24755/AI/NIAID NIH HHS/ -- CA40658/CA/NCI NIH HHS/ -- CA40659/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1987 Sep 11;237(4820):1351-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3629244" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Genes ; Genes, Viral ; Glycoproteins/analysis/*genetics ; HIV/*genetics ; Mutation ; Phenotype ; Plasmids ; Viral Envelope Proteins/analysis/*genetics
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  • 15
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    Neuronal pp60c-src contains a six-amino acid insertion relative to its non-neuronal counterpart (1987)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1987-07-24
    Description: Neuronal cells express a pp60c-src variant that displays an altered electrophoretic mobility and a different V8 peptide pattern relative to pp60c-src expressed in tissues of non-neuronal origin. To determine whether the neuronal form of pp60c-src is encoded by a brain-specific messenger RNA, a mouse brain complementary DNA (cDNA) library was screened with a chicken c-src probe and a 3.8-kilobase c-src cDNA clone was isolated. This clone encodes a 60-kilodalton protein that differs from chicken or human pp60c-src primarily in having six extra amino acids (Arg-Lys-Val-Asp-Val-Arg) within the NH2-terminal 16 kilodaltons of the molecule. S1 nuclease protection analysis confirmed that brain c-src RNA contains an 18-nucleotide insertion at the position of the extra six amino acids. This insertion occurs at a position that corresponds to a splice junction in the chicken and human c-src genes. The isolated c-src cDNA clone encodes a protein that displays an identical V8 peptide pattern to that observed in pp60c-src isolated from tissues of neuronal origin.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Martinez, R -- Mathey-Prevot, B -- Bernards, A -- Baltimore, D -- P0I CA38497/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1987 Jul 24;237(4813):411-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2440106" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Brain/enzymology ; Chickens ; Cloning, Molecular ; DNA/metabolism ; DNA Restriction Enzymes ; DNA Transposable Elements ; Humans ; Isoenzymes/*genetics ; Mice ; Neurons/*enzymology ; Protein Kinases/*genetics ; Proto-Oncogene Proteins/*genetics ; Proto-Oncogene Proteins pp60(c-src) ; Sequence Homology, Nucleic Acid ; Species Specificity
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  • 16
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    Metalloregulatory DNA-binding protein encoded by the merR gene: isolation and characterization (1987)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1987-01-09
    Description: The MerR protein mediates the induction of the mercury resistance phenotype in bacteria; it has been isolated in order to study the effects of metal-ion induced changes in the metabolism of prokaryotic cells at the molecular level. After DNA sequences responsible for negative autoregulation were removed, the 16-kilodalton protein was overproduced and purified to more than 90 percent homogeneity by a salt extraction procedure that yields about 5 milligrams of protein per gram of cells. Complementation data, amino terminal analysis, gel filtration, and deoxyribonuclease I protection studies demonstrate that the purified merR gene product is a dimer under nondenaturing conditions and that it binds specifically to DNA, in the presence and absence of mercury, at a palindromic site which is directly between the -10 and -35 regions of the structural genes and adjacent to its own promoter. These initial results indicate that MerR is a DNA-binding metalloregulatory protein that plays a central role in this heavy metal responsive system and they delineate an operator site in the mer operon.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉O'Halloran, T -- Walsh, C -- AI07256/AI/NIAID NIH HHS/ -- GM20011/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1987 Jan 9;235(4785):211-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3798107" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Bacterial Proteins/genetics/*isolation & purification ; Base Sequence ; Chromatography, Gel ; DNA/metabolism ; DNA-Binding Proteins/genetics/*isolation & purification ; Macromolecular Substances ; *Mercury ; Operator Regions, Genetic ; R Factors/*genetics ; Transcription, Genetic
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  • 17
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    Fluorescence properties of calmodulin-binding peptides reflect alpha-helical periodicity (1987)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1987-06-12
    Description: A basic amphiphilic alpha-helix is a structural feature common to many calmodulin-binding peptides and proteins. A set of fluorescent analogues of a very tight binding inhibitor (dissociation constant of 200 picomolar) of calmodulin has been synthesized. The fluorescent amino acid tryptophan has been systematically moved throughout the sequence of this peptide. The fluorescence properties for the peptides repeat every three to four residues and are consistent with the periodicity observed for an alpha-helix.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉O'Neil, K T -- Wolfe, H R Jr -- Erickson-Viitanen, S -- DeGrado, W F -- New York, N.Y. -- Science. 1987 Jun 12;236(4807):1454-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3589665" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Calmodulin/metabolism ; Calmodulin-Binding Proteins/*metabolism ; Muscle, Smooth/enzymology ; Muscles/enzymology ; Myosin-Light-Chain Kinase/metabolism ; Protein Conformation ; Spectrometry, Fluorescence ; Tryptophan
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  • 18
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    Steroidogenesis-activator polypeptide isolated from a rat Leydig cell tumor (1987)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1987-04-10
    Description: A cycloheximide-sensitive protein responsive to adenosine 3',5'-monophosphate has been postulated to participate in the regulation of cholesterol side-chain cleavage activity in steroidogenic tissues. Such a steroidogenesis activator polypeptide (SAP) had been isolated from rat adrenocortical tissue and partially characterized. Now a polypeptide with comparable chromatographic behavior and biological activity has been purified from the rat H-540 Leydig cell tumor in quantities sufficient for amino acid sequencing. The activator contains 30 amino acid residues and has a molecular weight of 3215. The synthetic construct based on this sequence is virtually equipotent with native H-540 tumor SAP in an adrenal mitochondrial cholesterol side-chain cleavage assay. Hormonal regulation of the intracellular concentration of this activator may control the rate of cholesterol metabolism in steroidogenic organs.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pedersen, R C -- Brownie, A C -- AM18141/AM/NIADDK NIH HHS/ -- HD00613/HD/NICHD NIH HHS/ -- HD19309/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1987 Apr 10;236(4798):188-90.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3563495" target="_blank"〉PubMed〈/a〉
    Keywords: Adrenal Cortex/analysis ; Amino Acid Sequence ; Animals ; Cholesterol/metabolism ; Cholesterol Side-Chain Cleavage Enzyme/*metabolism ; Chromatography, High Pressure Liquid ; *Heat-Shock Proteins ; Leydig Cell Tumor/*analysis ; Male ; Mitochondria/enzymology ; *Molecular Chaperones ; Oxidoreductases/*metabolism ; Peptide Fragments/analysis ; Proteins/*analysis ; Rats ; Steroids/*biosynthesis
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  • 19
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    Primary structure and biochemical properties of an M2 muscarinic receptor (1987)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1987-05-01
    Description: A partial amino acid sequence obtained for porcine atrial muscarinic acetylcholine receptor was used to isolate complementary DNA clones containing the complete receptor coding region. The deduced 466-amino acid polypeptide exhibits extensive structural and sequence homology with other receptors coupled to guanine nucleotide binding (G) proteins (for example, the beta-adrenergic receptor and rhodopsins); this similarity predicts a structure of seven membrane-spanning regions distinguished by the disposition of a large cytoplasmic domain. Stable transfection of the Chinese hamster ovary cell line with the atrial receptor complementary DNA leads to the binding of muscarinic antagonists in these cells with affinities characteristic of the M2 receptor subtype. The atrial muscarinic receptor is encoded by a unique gene consisting of a single coding exon and multiple, alternatively spliced 5' noncoding regions. The atrial receptor is distinct from the cerebral muscarinic receptor gene product, sharing only 38% overall amino acid homology and possessing a completely nonhomologous large cytoplasmic domain, suggesting a role for the latter region in differential effector coupling.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Peralta, E G -- Winslow, J W -- Peterson, G L -- Smith, D H -- Ashkenazi, A -- Ramachandran, J -- Schimerlik, M I -- Capon, D J -- CA16417/CA/NCI NIH HHS/ -- HL23632/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1987 May 1;236(4801):600-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3107123" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Cell Line ; DNA/genetics ; Exons ; GTP-Binding Proteins/metabolism ; Heart Atria/analysis ; Immunosorbent Techniques ; Membrane Proteins ; Molecular Weight ; Nucleic Acid Hybridization ; Peptide Fragments/metabolism ; Quinuclidinyl Benzilate/metabolism ; Receptors, Muscarinic/*genetics/metabolism ; Sequence Homology, Nucleic Acid ; Swine ; Transfection
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  • 20
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    Identification of human uromodulin as the Tamm-Horsfall urinary glycoprotein (1987)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1987-04-03
    Description: The primary structure of human uromodulin, a 616-amino acid, 85-kilodalton glycoprotein with in vitro immunosuppressive properties, was determined through isolation and characterization of complementary DNA and genomic clones. The amino acid sequence encoded by one of the exons of the uromodulin gene has homology to the low-density-lipoprotein receptor and the epidermal growth factor precursor. Northern hybridization analyses demonstrate that uromodulin is synthesized by the kidney. Evidence is provided that uromodulin is identical to the previously characterized Tamm-Horsfall glycoprotein, the most abundant protein in normal human urine.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pennica, D -- Kohr, W J -- Kuang, W J -- Glaister, D -- Aggarwal, B B -- Chen, E Y -- Goeddel, D V -- New York, N.Y. -- Science. 1987 Apr 3;236(4797):83-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3453112" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Amino Acids/analysis ; Base Sequence ; Chemistry, Physical ; Cloning, Molecular ; Cysteine ; DNA/genetics ; Gene Expression Regulation ; Genes ; Glycoproteins/*genetics ; Humans ; Mucoproteins/*analysis/*genetics ; Peptide Fragments/analysis ; Physicochemical Phenomena ; RNA, Messenger/genetics ; Uromodulin
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  • 21
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    Similarity of cruzin, an inhibitor of Trypanosoma cruzi neuraminidase, to high-density lipoprotein (1987)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1987-12-04
    Description: A specific inhibitor of the neuraminidase of the protozoan parasite Trypanosoma cruzi was isolated recently and named cruzin. It is now shown that cruzin is similar to high-density lipoprotein by amino acid homology, by sodium dodecyl sulfate-polyacrylamide gel electrophoresis, by immunoblot analysis, and by isoelectric focusing. Cruzin purified by ion exchange chromatography and high-density lipoprotein isolated by density gradient ultracentrifugation inhibited Trypanosoma cruzi neuraminidase to the same extent. Cruzin or high-density lipoprotein restores to normal the decreased multiplication rate of Trypanosoma cruzi epimastigotes grown in a medium depleted of lipoproteins, suggesting that it may be important for survival of the parasite in nature.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Prioli, R P -- Ordovas, J M -- Rosenberg, I -- Schaefer, E J -- Pereira, M E -- AI 07380/AI/NIAID NIH HHS/ -- AI 18102/AI/NIAID NIH HHS/ -- HL 35243/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1987 Dec 4;238(4832):1417-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Geographic Medicine and Infectious Diseases, New England Medical Center Hospitals, Inc., Boston, MA 02111.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3120314" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; *Anti-Infective Agents ; Apolipoprotein A-I ; Apolipoproteins A/genetics/immunology ; Blood Proteins/immunology/pharmacology/*physiology ; Isoelectric Focusing ; Lipoproteins, HDL/*physiology ; Neuraminidase/antagonists & inhibitors ; Trypanosoma cruzi/*enzymology/growth & development
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  • 22
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    Structure, function, and assembly of membrane proteins (1987)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1987-02-27
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Racker, E -- New York, N.Y. -- Science. 1987 Feb 27;235(4792):959-61.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2434995" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Bacteria/metabolism ; Cloning, Molecular ; Crystallization ; Humans ; Ion Channels/physiology ; Membrane Proteins/genetics/*physiology ; Mitochondria/metabolism ; Mutation ; Protein Conformation ; Receptors, Cell Surface/physiology
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  • 23
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    erg, a human ets-related gene on chromosome 21: alternative splicing, polyadenylation, and translation (1987)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1987-08-07
    Description: The avian acute leukemia virus E26 induces a mixed erythroid-myeloid leukemia in chickens and carries two distinct oncogenes, v-myb and v-ets. Recently, a novel gene named erg, closely related to the v-ets oncogene, was identified in human COLO 320 cells and the nucleotide sequence of its approximately 5.0-kilobase transcript, erg 1 was determined. In the present study, the nucleotide sequence of the alternatively spliced transcript, erg 2, was found to differ from erg 1 by a splicing event that causes a coding frameshift near the amino terminus, resulting in an additional 99-amino acid insertion at the amino-terminus. Expression of complementary DNAs for the two transcripts in vitro resulted in synthesis of polypeptides of approximately 41 and 52 kilodaltons, suggesting the use of alternative translation initiation codons in the case of erg proteins. The erg gene was localized by somatic cell genetic analysis to human chromosome 21. It is proposed that alternative sites of splicing and polyadenylation, together with alternative sites of translation initiation, allow the synthesis of two related polypeptides from a single erg gene transcriptional unit.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rao, V N -- Papas, T S -- Reddy, E S -- New York, N.Y. -- Science. 1987 Aug 7;237(4815):635-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3299708" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Base Sequence ; Cell Line ; *Chromosomes, Human, Pair 21 ; Cloning, Molecular ; Humans ; Oncogenes ; Plasmids ; Poly A/metabolism ; *Protein Biosynthesis ; Proto-Oncogene Proteins/biosynthesis ; *Proto-Oncogenes ; *RNA Splicing ; RNA, Messenger ; Sequence Homology, Nucleic Acid
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  • 24
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    Polypeptide sequences essential for RNA recognition by an enzyme (1987)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1987-03-27
    Description: Many RNAs are complex, globular molecules formed from elements of secondary and tertiary structure analogous to those found in proteins. Little is known about recognition of RNAs by proteins. In the case of transfer RNAs (tRNAs), considerable evidence suggests that elements dispersed in both the one- and three-dimensional structure are important for recognition by aminoacyl tRNA synthetases. Fragments of alanine tRNA synthetase were created by in vitro manipulations of the cloned alaS gene and examined for their interaction with alanine-specific tRNA. Sequences essential for recognition were located near the middle of the polypeptide, juxtaposed to the carboxyl-terminal side of the domain for aminoacyl adenylate synthesis. The most essential part of the tRNA interaction strength and specificity was dependent on a sequence of fewer than 100 amino acids. Within this sequence, and in the context of the proper conformation, a segment of no more than 17 amino acids was responsible for 25% or more of the total synthetase-tRNA free energy of association. The results raise the possibility that an important part of specific RNA recognition by an aminoacyl tRNA synthetase involves a polypeptide segment that is short relative to the total size of the protein.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Regan, L -- Bowie, J -- Schimmel, P -- GM23562/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1987 Mar 27;235(4796):1651-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2435005" target="_blank"〉PubMed〈/a〉
    Keywords: Adenosine Triphosphate/metabolism ; Alanine-tRNA Ligase/metabolism ; Amino Acid Sequence ; Amino Acyl-tRNA Synthetases/*metabolism ; Base Sequence ; Cloning, Molecular ; Escherichia coli/enzymology ; RNA/*metabolism ; RNA, Transfer, Amino Acyl/metabolism ; Structure-Activity Relationship ; Substrate Specificity ; Thermodynamics
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  • 25
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    D-alanine in the frog skin peptide dermorphin is derived from L-alanine in the precursor (1987)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1987-10-09
    Description: A D-alanine-containing peptide termed dermorphin, with potent opiate-like activity, has been isolated from skin of the frog Phyllomedusa sauvagei. Complementary DNA (cDNA) libraries were constructed from frog skin messenger RNA and screened with a mixture of oligonucleotides that contained the codons complementary to five amino acids of dermorphin. Clones were detected with inserts coding for different dermorphin precursors. The predicted amino acid sequences of these precursors contained homologous repeats of 35 amino acids that included one copy of the heptapeptide dermorphin. In these cloned cDNAs, the alanine codon GCG occurred at the position where D-alanine is present in the end product. This suggests the existence of a novel post-translational reaction for the conversion of an L-amino acid to its D-isomer.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Richter, K -- Egger, R -- Kreil, G -- New York, N.Y. -- Science. 1987 Oct 9;238(4824):200-2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Molecular Biology Institute, Austrian Academy of Sciences, Salzburg.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3659910" target="_blank"〉PubMed〈/a〉
    Keywords: Alanine/*metabolism ; Amino Acid Sequence ; Animals ; Anura ; Base Sequence ; Cloning, Molecular ; DNA/analysis ; Molecular Sequence Data ; Oligopeptides/*genetics ; Opioid Peptides ; RNA, Messenger/genetics ; Skin/*metabolism ; Stereoisomerism
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  • 26
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    Identification of a novel thyroid hormone receptor expressed in the mammalian central nervous system (1987)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1987-09-25
    Description: A complementary DNA clone derived from rat brain messenger RNA has been isolated on the basis of homology to the human thyroid hormone receptor gene. Expression of this complementary DNA produces a high-affinity binding protein for thyroid hormones. Sequence analysis and the mapping of this gene to a distinct human genetic locus indicate the existence of multiple human thyroid hormone receptors. Messenger RNA from this gene is expressed in a tissue-specific fashion with highest levels in the central nervous system.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Thompson, C C -- Weinberger, C -- Lebo, R -- Evans, R M -- GM-266444-09/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1987 Sep 25;237(4822):1610-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3629259" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Brain/*physiology ; DNA/genetics ; DNA-Binding Proteins/*genetics ; Gene Expression Regulation ; Genes ; Humans ; RNA, Messenger/genetics ; Rats ; Receptors, Thyroid Hormone/*genetics/metabolism ; Tissue Distribution ; Triiodothyronine/metabolism
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  • 27
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    The molecular basis of the sparse fur mouse mutation (1987)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1987-07-24
    Description: The ornithine transcarbamylase-deficient sparse fur mouse is an excellent model to study the most common human urea cycle disorder. The mutation has been well characterized by both biochemical and enzymological methods, but its exact nature has not been revealed. A single base substitution in the complementary DNA for ornithine transcarbamylase from the sparse fur mouse has been identified by means of a combination of two recently described techniques for rapid mutational analysis. This strategy is simpler than conventional complementary DNA library construction, screening, and sequencing, which has often been used to find a new mutation. The ornithine transcarbamylase gene in the sparse fur mouse contains a C to A transversion that alters a histidine residue to an asparagine residue at amino acid 117.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Veres, G -- Gibbs, R A -- Scherer, S E -- Caskey, C T -- HD21452/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1987 Jul 24;237(4813):415-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3603027" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; DNA/analysis ; Disease Models, Animal ; *Genes ; Mice ; Mice, Mutant Strains ; *Mutation ; Ornithine Decarboxylase/deficiency/*genetics ; RNA, Messenger/genetics
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  • 28
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    Human CSF-1: molecular cloning and expression of 4-kb cDNA encoding the human urinary protein (1987)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1987-03-20
    Description: A 4-kilobase complementary DNA (cDNA) encoding human macrophage-specific colony-stimulating factor (CSF-1) was isolated. When introduced into mammalian cells, this cDNA directs the expression of CSF-1 that is structurally and functionally indistinguishable from the natural human urinary CSF-1. Direct structural analysis of both the recombinant CSF-1 and the purified human urinary protein revealed that these species contain a sequence of at least 40 amino acids at their carboxyl termini which are not found in the coding region of a 1.6-kilobase CSF-1 cDNA that was previously described. These results demonstrate that the human CSF-1 gene can be expressed to yield at least two different messenger RNA species that encode distinct but related forms of CSF-1.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wong, G G -- Temple, P A -- Leary, A C -- Witek-Giannotti, J S -- Yang, Y C -- Ciarletta, A B -- Chung, M -- Murtha, P -- Kriz, R -- Kaufman, R J -- New York, N.Y. -- Science. 1987 Mar 20;235(4795):1504-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3493529" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Base Sequence ; Cloning, Molecular ; Colony-Stimulating Factors/*genetics/urine ; DNA/genetics ; Gene Expression Regulation ; Humans ; Macrophages/physiology ; Molecular Weight ; Peptide Fragments ; Protein Processing, Post-Translational ; RNA, Messenger/genetics
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    Molecular cloning and expression of a human B-cell growth factor gene in Escherichia coli (1987)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1987-03-20
    Description: A human B-cell growth factor (BCGF) (12 kilodaltons) supports the clonal proliferation of B lymphocytes. A clone was isolated that contained the proper structural sequence to encode biologically active, 12-kilodalton BCGF in Escherichia coli and to hybridize to a specific messenger RNA, identified by in vitro translation in Xenopus laevis oocytes. A relatively hydrophobic region of 18 amino acids was found at the amino terminal of the 124-amino acid-long polypeptide. The carboxyl terminal is composed of at least 32 amino acids that are derived from nucleotide sequences bearing significant homology to the Alu repeat family.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sharma, S -- Mehta, S -- Morgan, J -- Maizel, A -- 16672/PHS HHS/ -- CA38499/CA/NCI NIH HHS/ -- CA39798/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1987 Mar 20;235(4795):1489-92.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3547651" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; B-Lymphocytes/*physiology ; Base Sequence ; Cloning, Molecular ; DNA/genetics ; Escherichia coli ; Gene Expression Regulation ; Growth Substances/*genetics ; Interleukin-4 ; Lymphokines/*genetics ; Repetitive Sequences, Nucleic Acid ; Sequence Homology, Nucleic Acid
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    Dorsal, an embryonic polarity gene in Drosophila, is homologous to the vertebrate proto-oncogene, c-rel (1987)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1987-10-30
    Description: The Drosophila gene, dorsal, is a maternal effect locus that is essential for the establishment of dorsal-ventral polarity in the developing embryo. The dorsal protein was predicted from the complementary DNA sequence; it is almost 50 percent identical, over an extensive region, to the protein encoded by the avian oncogene v-rel, its cellular homolog, c-rel, and a human c-rel fragment. The oncogene v-rel is highly oncogenic in avian lymphoid, spleen, and bone marrow cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Steward, R -- New York, N.Y. -- Science. 1987 Oct 30;238(4827):692-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, Princeton University, NJ 08544.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3118464" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; DNA/genetics ; Drosophila melanogaster/embryology/*genetics ; Genes ; Molecular Sequence Data ; *Morphogenesis ; Oogenesis ; Proto-Oncogene Proteins/*genetics ; *Proto-Oncogenes ; Sequence Homology, Nucleic Acid
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    Identification of a family of muscarinic acetylcholine receptor genes (1987)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1987-07-31
    Description: Complementary DNAs for three different muscarinic acetylcholine receptors were isolated from a rat cerebral cortex library, and the cloned receptors were expressed in mammalian cells. Analysis of human and rat genomic clones indicates that there are at least four functional muscarinic receptor genes and that these genes lack introns in the coding sequence. This gene family provides a new basis for evaluating the diversity of muscarinic mechanisms in the nervous system.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bonner, T I -- Buckley, N J -- Young, A C -- Brann, M R -- New York, N.Y. -- Science. 1987 Jul 31;237(4814):527-32.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3037705" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Brain/metabolism ; Cloning, Molecular ; Codon ; Dna ; DNA Restriction Enzymes ; *Genes ; Genetic Code ; Humans ; Models, Molecular ; Nucleic Acid Hybridization ; Rats ; Receptors, Muscarinic/classification/*genetics ; Swine ; Transfection
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    Apolipoprotein B-48 is the product of a messenger RNA with an organ-specific in-frame stop codon (1987)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1987-10-16
    Description: The primary structure of human apolipoprotein (apo) B-48 has been deduced and shown by a combination of DNA excess hybridization, sequencing of tryptic peptides, cloned complementary DNAs, and intestinal messenger RNAs (mRNAs) to be the product of an intestinal mRNA with an in-frame UAA stop codon resulting from a C to U change in the codon CAA encoding Gln2153 in apoB-100 mRNA. The carboxyl-terminal Ile2152 of apoB-48 purified from chylous ascites fluid has apparently been cleaved from the initial translation product, leaving Met2151 as the new carboxyl-terminus. These data indicate that approximately 85% of the intestinal mRNAs terminate within approximately 0.1 to 1.0 kilobase downstream from the stop codon. The other approximately 15% have lengths similar to hepatic apoB-100 mRNA even though they have the same in-frame stop codon. The organ-specific introduction of a stop codon to a mRNA appears unprecedented and might have implications for cryptic polyadenylation signal recognition and RNA processing.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chen, S H -- Habib, G -- Yang, C Y -- Gu, Z W -- Lee, B R -- Weng, S A -- Silberman, S R -- Cai, S J -- Deslypere, J P -- Rosseneu, M -- GM-30998/GM/NIGMS NIH HHS/ -- HL-27341/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1987 Oct 16;238(4825):363-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cell Biology, Baylor College of Medicine, Houston, TX 77030.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3659919" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Apolipoprotein B-48 ; Apolipoproteins B/*genetics/metabolism ; Base Sequence ; Chylous Ascites/metabolism ; *Codon ; DNA/genetics ; Humans ; Intestine, Small/analysis ; Molecular Sequence Data ; Nucleic Acid Hybridization ; Peptide Fragments ; *RNA, Messenger/analysis/*genetics ; Trypsin/metabolism
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    Construction of synthetic immunogen: use of new T-helper epitope on malaria circumsporozoite protein (1987)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1987-02-27
    Description: The circumsporozoite (CS) protein of Plasmodium falciparum is the focus of intense efforts to develop an antisporozoite malaria vaccine. Localization of sites for T-cell recognition on this molecule is critical for vaccine design. By using an algorithm designed to predict T-cell sites and a large panel of H-2 congenic mice, a major nonrepetitive T-cell site was located. When a synthetic peptide corresponding to this site was covalently linked to the major B-cell site on the molecule, an immunogen capable of eliciting a high-titer antibody response was formed. This peptide sequence could prime helper T cells for a secondary response to the intact CS protein. The new helper T-cell site is located outside the repetitive region of the CS protein and appears to be the immunodominant T site on the molecule. This approach should be useful in the rational design and construction of vaccines.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Good, M F -- Maloy, W L -- Lunde, M N -- Margalit, H -- Cornette, J L -- Smith, G L -- Moss, B -- Miller, L H -- Berzofsky, J A -- New York, N.Y. -- Science. 1987 Feb 27;235(4792):1059-62.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2434994" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Antibody Formation ; Antigens, Protozoan/immunology ; Antigens, Surface/*immunology ; B-Lymphocytes/immunology ; Epitopes/*immunology ; Mice ; Peptide Fragments/chemical synthesis/*immunology ; Plasmodium falciparum/*immunology ; *Protozoan Proteins ; Receptors, Antigen, B-Cell/immunology ; Receptors, Antigen, T-Cell/immunology ; T-Lymphocytes/immunology ; T-Lymphocytes, Helper-Inducer/*immunology ; Vaccines/immunology
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    Cloning of complementary DNA for GAP-43, a neuronal growth-related protein (1987)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1987-05-01
    Description: GAP-43 is one of a small subset of cellular proteins selectively transported by a neuron to its terminals. Its enrichment in growth cones and its increased levels in developing or regenerating neurons suggest that it has an important role in neurite growth. A complementary DNA (cDNA) that encodes rat GAP-43 has been isolated to study its structural characteristics and regulation. The predicted molecular size is 24 kilodaltons, although its migration in SDS-polyacrylamide gels is anomalously retarded. Expression of GAP-43 is limited to the nervous system, where its levels are highest during periods of neurite outgrowth. Nerve growth factor or adenosine 3',5'-monophosphate induction of neurites from PC12 cells is accompanied by increased GAP-43 expression. GAP-43 RNA is easily detectable, although at diminished levels, in the adult rat nervous system. This regulation of GAP-43 is concordant with a role in growth-related processes of the neuron, processes that may continue in the mature animal.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Karns, L R -- Ng, S C -- Freeman, J A -- Fishman, M C -- New York, N.Y. -- Science. 1987 May 1;236(4801):597-600.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2437653" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Axons/physiology ; Bacteriophage lambda/genetics ; Base Sequence ; *Cloning, Molecular ; DNA/*genetics ; Electrophoresis, Polyacrylamide Gel ; GAP-43 Protein ; Ganglia, Spinal/analysis/embryology ; Gene Expression Regulation ; Growth Substances/genetics ; Immunosorbent Techniques ; Membrane Proteins/*genetics ; Nerve Tissue Proteins/*genetics ; Protein Biosynthesis ; RNA/genetics ; RNA, Messenger/genetics ; Rats
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    Similarity of synthetic peptide from human tumor to parathyroid hormone in vivo and in vitro (1987)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1987-12-11
    Description: One mechanism considered responsible for the hypercalcemia that frequently accompanies malignancy is secretion by the tumor of a circulating factor that alters calcium metabolism. The structure of a tumor-secreted peptide was recently determined and found to be partially homologous to parathyroid hormone (PTH). The amino-terminal 1-34 region of the factor was synthesized and evaluated biologically. In vivo it produced hypercalcemia, acted on bone and kidney, and stimulated 1,25-dihydroxy-vitamin D3 formation. In vitro it interacted with PTH receptors and, in some systems, was more potent than PTH. These studies support a long-standing hypothesis regarding pathogenesis of malignancy-associated hypercalcemia.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Horiuchi, N -- Caulfield, M P -- Fisher, J E -- Goldman, M E -- McKee, R L -- Reagan, J E -- Levy, J J -- Nutt, R F -- Rodan, S B -- Schofield, T L -- AR 36446/AR/NIAMS NIH HHS/ -- AR 39191/AR/NIAMS NIH HHS/ -- New York, N.Y. -- Science. 1987 Dec 11;238(4833):1566-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Regional Bone Center, Helen Hayes Hospital (New York State Department of Health), West Haverstraw 10993.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3685994" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Calcium/blood ; Humans ; Hypercalcemia/etiology ; Neoplasms/*physiopathology ; Parathyroid Glands/physiology ; Parathyroid Hormone/pharmacology/*physiology ; Peptides/*physiology ; Rats ; Rats, Inbred Strains ; Thyroidectomy
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    Structurally divergent human T cell receptor gamma proteins encoded by distinct C gamma genes (1987)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1987-07-03
    Description: The human T cell receptor (TCR) gamma polypeptide occurs in structurally distinct forms on certain peripheral blood T lymphocytes. Complementary DNA clones representing the transcripts of functionally rearranged TCR gamma genes in these cells have been analyzed. The expression of a disulfide-linked and a nondisulfide-linked form of TCR gamma correlates with the use of the C gamma 1 and C gamma 2 constant-region gene segments, respectively. Variability in TCR gamma polypeptide size and disulfide linkage is determined by the number of copies and the sequence of a repeated segment of the constant region. Thus C gamma 1 and C gamma 2 are used to generate structurally distinct, yet functional, T3-associated receptor complexes on peripheral blood lymphocytes. Tryptic peptide mapping suggests that the T3-associated TCR gamma and delta peptides in the nondisulfide-linked form are distinct.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Krangel, M S -- Band, H -- Hata, S -- McLean, J -- Brenner, M B -- 1-KO1-AM01598/AM/NIADDK NIH HHS/ -- 1-RO1-GM38308/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1987 Jul 3;237(4810):64-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2955517" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Base Sequence ; Exons ; Genes ; Humans ; Peptide Fragments/*genetics ; Receptors, Antigen, T-Cell/*genetics ; Receptors, Antigen, T-Cell, gamma-delta ; Repetitive Sequences, Nucleic Acid ; T-Lymphocytes/*physiology
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    Bacteriophage M13 procoat protein inserts into the plasma membrane as a loop structure (1987)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1987-12-04
    Description: The major coat protein of bacteriophage M13 is synthesized as a precursor, the procoat, with a typical leader (signal) sequence of 23 residues at its NH2-terminus. A fusion protein that contains the NH2-terminal 141 residues of cytoplasmic ribulokinase and all but the first ten residues of M13 procoat was made. The fusion protein inserts into the plasma membrane of Escherichia coli and is processed by leader peptidase to give rise to a leader peptide of 155 residues and the mature coat protein of 50 residues. The NH2-terminus of the leader peptide remains in the cytoplasm and is protected from protease added to the medium outside of the cell. This indicates that M13 procoat inserts into the membrane as a loop structure and that the NH2-terminus of a leader peptide remains within the cytoplasm during membrane insertion.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kuhn, A -- New York, N.Y. -- Science. 1987 Dec 4;238(4832):1413-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Microbiology Department, University of Basel, Switzerland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3317833" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Capsid/*metabolism ; Coliphages/*metabolism ; Escherichia coli/metabolism ; Membrane Proteins/*metabolism ; Molecular Sequence Data ; Protein Conformation ; Protein Precursors/metabolism ; Protein Processing, Post-Translational ; Protein Sorting Signals/metabolism ; Recombinant Fusion Proteins/metabolism
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    Isolation of an olfactory cDNA: similarity to retinol-binding protein suggests a role in olfaction (1987)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1987-02-27
    Description: Molecular cloning techniques were used to isolate and characterize a protein possibly involved in the signal transducing system in olfactory tissue of the frog Rana pipiens. A complementary DNA library was constructed with messenger RNA obtained from frog olfactory neuroepithelium. A 700-base pair complementary DNA clone encoding a protein with a molecular weight of 20,300 was identified by differential hybridization analysis with polyadenylated RNA from olfactory epithelium and nonsensory respiratory epithelium. The messenger RNA corresponding to this clone was abundant in the cells of Bowman's glands in olfactory tissue but not in respiratory epithelium nor in several other tissues. The predicted sequence of this protein is homologous to members of a family of proteins that bind and transport small molecules in serum, suggesting that this protein may also bind and transport odorants in the mucus secreted by Bowman's glands.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lee, K H -- Wells, R G -- Reed, R R -- 5 PO1 CA16519/CA/NCI NIH HHS/ -- 5 T32 GM07309/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1987 Feb 27;235(4792):1053-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3493528" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Cloning, Molecular ; DNA/*genetics/isolation & purification ; Epithelium/analysis ; Molecular Weight ; Mucus/metabolism ; Nucleic Acid Hybridization ; Odors ; Olfactory Mucosa/*analysis/physiology ; RNA, Messenger/genetics/metabolism ; Rana pipiens ; Respiratory System/analysis ; Retinol-Binding Proteins/genetics/*physiology
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    Glucocorticoid receptor mutants that define a small region sufficient for enhancer activation (1987)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1987-04-24
    Description: Transcriptional enhancement is a general mechanism for regulation of gene expression in which particular proteins bound to specific DNA sequences stimulate the efficiency of initiation from linked promoters. One such protein, the glucocorticoid receptor, mediates enhancement in a glucocorticoid hormone-dependent manner. In this study, a region of the 795-amino acid rat glucocorticoid receptor that is active in transcriptional enhancement was identified. The active region was defined by expressing various receptor deletion mutants in stably and transiently transfected cells and examining the regulated transcription of hormone-responsive genes. Mutant receptors lacking as many as 439 amino-terminal amino acids retained activity, as did those with as many as 270 carboxyl-terminal amino acids deleted. This suggests that the 86-amino acid segment between the most extensive terminal deletions, which also includes sequences required for specific DNA binding in vitro, is sufficient for enhancer activation. In fact, a 150-amino acid receptor fragment that encompasses this segment mediates constitutive enhancement.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Miesfeld, R -- Godowski, P J -- Maler, B A -- Yamamoto, K R -- New York, N.Y. -- Science. 1987 Apr 24;236(4800):423-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3563519" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; DNA-Binding Proteins/*genetics ; *Enhancer Elements, Genetic ; *Genes, Regulator ; Mutation ; Rats ; Receptors, Glucocorticoid/*genetics ; Structure-Activity Relationship ; Transfection
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    Early restriction of the human antibody repertoire (1987)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1987-11-06
    Description: Diversification of the antibody repertoire in mammals results from a series of apparently random somatically propagated gene rearrangement and mutational events. Nevertheless, it is well known that the adult repertoire of antibody specificities is acquired in a developmentally programmed fashion. As previously shown, rearrangement of the gene segments encoding the heavy-chain variable regions (VH) of mouse antibodies is also developmentally ordered: the number of VH gene segments rearranged in B lymphocytes of fetal mice is small but increased progressively after birth. In this report, human fetal B-lineage cells were also shown to rearrange a highly restricted set of VH gene segments. In a sample of heavy-chain transcripts from a 130-day human fetus the most frequently expressed human VH element proved to be closely related to the VH element most frequently expressed in murine fetal B-lineage cells. These observations are important in understanding the development of immunocompetence.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Schroeder, H W Jr -- Hillson, J L -- Perlmutter, R M -- AI07470/AI/NIAID NIH HHS/ -- GM07454/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1987 Nov 6;238(4828):791-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, University of Washington, Seattle 98195.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3118465" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Amino Acid Sequence ; Animals ; B-Lymphocytes/immunology ; Base Sequence ; Fetus ; *Genes, Immunoglobulin ; Humans ; Immunoglobulin Heavy Chains/genetics ; Immunoglobulin Variable Region/genetics ; Mice ; Molecular Sequence Data ; Mutation ; Sequence Homology, Nucleic Acid
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    A synaptic vesicle protein with a novel cytoplasmic domain and four transmembrane regions (1987)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1987-11-20
    Description: Complementary DNA and genomic clones were isolated and sequenced corresponding to rat and human synaptophysin (p38), a major integral membrane protein of synaptic vesicles. The deduced amino acid sequences indicate an evolutionarily highly conserved protein that spans the membrane four times. Both amino and carboxyl termini face the cytoplasm, with the latter containing ten copies of a tyrosine-rich pentapeptide repeat. The structure of synaptophysin suggests that the protein may function as a channel in the synaptic vesicle membrane, with the carboxyl terminus serving as a binding site for cellular factors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sudhof, T C -- Lottspeich, F -- Greengard, P -- Mehl, E -- Jahn, R -- New York, N.Y. -- Science. 1987 Nov 20;238(4830):1142-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Department of Molecular Genetics, University of Texas Health Science Center, Dallas 75235.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3120313" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Cloning, Molecular ; *Membrane Proteins/genetics ; Molecular Sequence Data ; Protein Conformation ; Rats ; Solubility ; Synaptic Vesicles/ultrastructure ; Synaptophysin
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    Cloning of human mineralocorticoid receptor complementary DNA: structural and functional kinship with the glucocorticoid receptor (1987)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1987-07-17
    Description: Low-stringency hybridization with human glucocorticoid receptor (hGR) complementary DNA was used to isolate a new gene encoding a predicted 107-kilodalton polypeptide. Expression studies demonstrate its ability to bind aldosterone with high affinity and to activate gene transcription in response to aldosterone, thus establishing its identity as the human mineralocorticoid receptor (hMR). This molecule also shows high affinity for glucocorticoids and stimulates a glucocorticoid-responsive promoter. Together the hMR and hGR provide unexpected functional diversity in which hormone-binding properties, target gene interactions, and patterns of tissue-specific expression may be used in a combinatorial fashion to achieve complex physiologic control.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Arriza, J L -- Weinberger, C -- Cerelli, G -- Glaser, T M -- Handelin, B L -- Housman, D E -- Evans, R M -- New York, N.Y. -- Science. 1987 Jul 17;237(4812):268-75.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3037703" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Chromosomes, Human, Pair 4 ; Cloning, Molecular ; DNA/genetics ; DNA-Binding Proteins/genetics ; Humans ; Rats ; Receptors, Glucocorticoid/*genetics ; Receptors, Mineralocorticoid ; Receptors, Steroid/*genetics ; Sequence Homology, Nucleic Acid ; Tissue Distribution ; Transcription Factors/*genetics ; Transcription, Genetic
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    Epitope mapping by chemical modification of free and antibody-bound protein antigen (1987)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1987-02-13
    Description: A monoclonal antibody bound to a protein antigen slows the rate of chemical modification of amino acid residues located at the epitope. By comparing the degree of acetylation of 18 lysine and 7 threonine residues in free and antibody-bound horse cytochrome c, a discontiguous, conformational epitope was characterized on this protein antigen. The new approach is particularly suitable to probe discontiguous and conformational epitopes, which are difficult to analyze by other procedures.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Burnens, A -- Demotz, S -- Corradin, G -- Binz, H -- Bosshard, H R -- New York, N.Y. -- Science. 1987 Feb 13;235(4790):780-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2433768" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Antibodies, Monoclonal/*immunology ; *Antigen-Antibody Complex ; Cytochrome c Group/*immunology ; Epitopes/*immunology ; Horses ; Humans ; Models, Molecular ; Protein Conformation ; Species Specificity
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    Synthesis of a site-specific DNA-binding peptide (1987)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1987-02-13
    Description: The Hin recombinase binds to specific sites on DNA and mediates a recombination event that results in DNA inversion. In order to define the DNA-binding domain of the Hin protein two peptides 31 and 52 amino acids long were synthesized. Even though the 31mer encompassed the sequence encoding the putative helix-coil-helix-binding domain, it was not sufficient for binding to the 26-base pair DNA crossover site. However, the 52mer specifically interacted with the site and also effectively inhibited the Hin-mediated recombination reaction. The 52mer bound effectively to both the 26-base pair complete site and to a 14-base pair "half site." Nuclease and chemical protection studies with the 52mer helped to define the DNA base pairs that contributed to the specificity of binding. The synthetic peptide provides opportunities for new approaches to the study of the nature of protein-DNA interaction.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bruist, M F -- Horvath, S J -- Hood, L E -- Steitz, T A -- Simon, M I -- GM-09534-02/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1987 Feb 13;235(4790):777-80.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3027895" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Bacterial Proteins/*chemical synthesis/metabolism ; Base Composition ; DNA/*metabolism ; DNA Nucleotidyltransferases/*metabolism ; Peptides/chemical synthesis ; Protein Binding ; Protein Conformation
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  • 45
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    Neural cell adhesion molecule: structure, immunoglobulin-like domains, cell surface modulation, and alternative RNA splicing (1987)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1987-05-15
    Description: The neural cell adhesion molecule, N-CAM, appears on early embryonic cells and is important in the formation of cell collectives and their boundaries at sites of morphogenesis. Later in development it is found on various differentiated tissues and is a major CAM mediating adhesion among neurons and between neurons and muscle. To provide a molecular basis for understanding N-CAM function, the complete amino acid sequences of the three major polypeptides of N-CAM and most of the noncoding sequences of their messenger RNA's were determined from the analysis of complementary DNA clones and were verified by amino acid sequences of selected CNBr fragments and proteolytic fragments. The extracellular region of each N-CAM polypeptide includes five contiguous segments that are homologous in sequence to each other and to members of the immunoglobulin superfamily, suggesting that interactions among immunoglobulin-like domains form the basis for N-CAM homophilic binding. Although different in their membrane-associated and cytoplasmic domains, the amino acid sequences of the three polypeptides appear to be identical throughout this extracellular region (682 amino acids) where the binding site is located. Variations in N-CAM activity thus do not occur by changes in the amino acid sequence that alter the specificity of binding. Instead, regulation is achieved by cell surface modulation events that alter N-CAM affinity, prevalence, mobility, and distribution on the surface. A major mechanism for modulation is alternative RNA splicing resulting in N-CAM's with different cytoplasmic domains that differentially interact with the cell membrane. Such regulatory mechanisms may link N-CAM binding function with other primary cellular processes during the embryonic development of pattern.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cunningham, B A -- Hemperly, J J -- Murray, B A -- Prediger, E A -- Brackenbury, R -- Edelman, G M -- AM-04256/AM/NIADDK NIH HHS/ -- HD-09635/HD/NICHD NIH HHS/ -- HD-16550/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1987 May 15;236(4803):799-806.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3576199" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Antigens, Surface/*genetics/immunology ; Base Sequence ; Cell Adhesion ; Cell Adhesion Molecules ; Cloning, Molecular ; DNA/metabolism ; Immunoglobulins ; Oligosaccharides/analysis ; Peptide Fragments/analysis ; *RNA Splicing ; Sequence Homology, Nucleic Acid
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    Identification of putative human T cell receptor delta complementary DNA clones (1987)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1987-10-30
    Description: A novel T cell receptor (TCR) subunit termed TCR delta, associated with TCR gamma and CD3 polypeptides, was recently found on a subpopulation of human T lymphocytes. T cell-specific complementary DNA clones present in a human TCR gamma delta T cell complementary DNA library were obtained and characterized in order to identify candidate clones encoding TCR delta. One cross-hybridizing group of clones detected transcripts that are expressed in lymphocytes bearing TCR gamma delta but not in other T lymphocytes and are encoded by genes that are rearranged in TCR gamma delta lymphocytes but deleted in other T lymphocytes. Their sequences indicate homology to the variable, joining, and constant elements of other TCR and immunoglobulin genes. These characteristics, as well as the immunochemical data presented in a companion paper, are strong evidence that the complementary DNA clones encode TCR delta.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hata, S -- Brenner, M B -- Krangel, M S -- 1-K01-AM01598/AM/NIADDK NIH HHS/ -- New York, N.Y. -- Science. 1987 Oct 30;238(4827):678-82.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Tumor Virology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA 02115.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3499667" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Base Sequence ; Cloning, Molecular ; DNA/genetics ; Genes ; Humans ; Membrane Proteins/genetics ; Molecular Sequence Data ; RNA, Messenger/genetics ; Receptors, Antigen, T-Cell/*genetics ; T-Lymphocytes/*physiology
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    Uromodulin (Tamm-Horsfall glycoprotein): a renal ligand for lymphokines (1987)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1987-09-18
    Description: The protein portion of the immunosuppressive glycoprotein uromodulin is identical to the Tamm-Horsfall urinary glycoprotein and is synthesized in the kidney. Evidence that the glycoproteins are the same is based on amino acid sequence identity, immunologic cross-reactivity, and tissue localization to the thick ascending limb of Henle's loop. Nucleic acid sequencing of clones for uromodulin isolated from a complementary DNA bank from human kidney predicts a protein 639 amino acids in length, including a 24--amino acid leader sequence and a cysteine-rich mature protein with eight potential glycosylation sites. Uromodulin and preparations of Tamm-Horsfall glycoprotein bind to recombinant murine interleukin-1 (rIL-1) and human rIL-1 alpha, rIL-1 beta, and recombinant tumor necrosis factor (rTNF). Uromodulin isolated from urine of pregnant women by lectin adherence is more immunosuppressive than material isolated by the original salt-precipitation protocol of Tamm and Horsfall. Immunohistologic studies demonstrate that rIL-1 and rTNF bind to the same area of the human kidney that binds to antiserum specific for uromodulin. Thus, uromodulin (Tamm-Horsfall glycoprotein) may function as a unique renal regulatory glycoprotein that specifically binds to and regulates the circulating activity of a number of potent cytokines, including IL-1 and TNF.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hession, C -- Decker, J M -- Sherblom, A P -- Kumar, S -- Yue, C C -- Mattaliano, R J -- Tizard, R -- Kawashima, E -- Schmeissner, U -- Heletky, S -- New York, N.Y. -- Science. 1987 Sep 18;237(4821):1479-84.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3498215" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Base Sequence ; Cloning, Molecular ; Enzyme-Linked Immunosorbent Assay ; Glycoproteins/metabolism ; Humans ; Interleukin-1/metabolism ; Kidney/*metabolism ; Ligands/metabolism ; Lymphokines/*metabolism ; Molecular Weight ; Mucoproteins/*analysis/genetics ; RNA, Messenger/analysis ; Recombinant Proteins/metabolism ; Tumor Necrosis Factor-alpha ; Uromodulin
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    Clathrin light chains LCA and LCB are similar, polymorphic, and share repeated heptad motifs (1987)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1987-04-17
    Description: The clathrin light chains fall into two major classes, LCA and LCB. In an intact clathrin triskelion, one light chain, of either class, is bound to the proximal segment of a heavy chain leg. Analysis of rat brain and liver complementary DNA clones for LCA and LCB shows that the two light chain classes are closely related. There appear to be several members of each class having deletions of varying length aligned at the same position. A set of ten heptad elements, characteristic of alpha-helical coiled coils, is a striking feature of the central part of each derived amino acid sequence. These observations suggest a model in which the alpha-helical segment mediates binding to clathrin heavy chains and the amino- and carboxyl-terminal segments mediate interactions with other proteins. They also suggest an explanation for the observed tissue-dependent size variation for members of each class.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kirchhausen, T -- Scarmato, P -- Harrison, S C -- Monroe, J J -- Chow, E P -- Mattaliano, R J -- Ramachandran, K L -- Smart, J E -- Ahn, A H -- Brosius, J -- MH 38819/MH/NIMH NIH HHS/ -- R01 GM 36548-01/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1987 Apr 17;236(4799):320-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3563513" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Brain/metabolism ; Clathrin/*genetics ; Cloning, Molecular ; DNA/analysis ; Liver/metabolism ; Macromolecular Substances ; *Polymorphism, Genetic ; Rats ; Repetitive Sequences, Nucleic Acid
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    Proteolytic self-cleavage of hepatitis B virus core protein may generate serum e antigen (1987)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1987-05-08
    Description: A model is proposed to explain the presence of the e antigen (HBeAg) of hepatitis B virus (HBV) in the serum of individuals infected with this virus. The e antigen, which has only recently been characterized, is a fragment of the virus core, or nucleocapsid, protein. Serum HBeAg is a valuable clinical marker for active HBV infection because its appearance correlates both with virus replication in the liver and with the presence of circulating virions. In this study a protease-like amino acid sequence was identified at the amino terminus of the core protein sequence. Experimental evidence indicates that HBeAg may be produced by proteolytic self-cleavage of the core protein.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Miller, R H -- U41-01685-02/PHS HHS/ -- New York, N.Y. -- Science. 1987 May 8;236(4802):722-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3554507" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Genes, Viral ; Hepatitis B/immunology ; Hepatitis B e Antigens/*immunology ; Hepatitis B virus/*enzymology/genetics ; Peptide Fragments/immunology/metabolism ; Peptide Hydrolases/genetics/*metabolism ; Viral Core Proteins/*metabolism
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    Molecular cloning of complementary DNA encoding the avian receptor for vitamin D (1987)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1987-03-06
    Description: Vitamin D3 receptors are intracellular proteins that mediate the nuclear action of the active metabolite 1,25-dihydroxyvitamin D3 [1,25(OH)2D3]. Two receptor-specific monoclonal antibodies were used to recover the complementary DNA (cDNA) of this regulatory protein from a chicken intestinal lambda gt11 cDNA expression library. The amino acid sequences that were deduced from this cDNA revealed a highly conserved cysteine-rich region that displayed homology with a domain characteristic of other steroid receptors and with the gag-erbA oncogene product of avian erythroblastosis virus. RNA selected via hybridization with this DNA sequence directed the cell-free synthesis of immunoprecipitable vitamin D3 receptor. Northern blot analysis of polyadenylated RNA with these cDNA probes revealed two vitamin D receptor messenger RNAs (mRNAs) of 2.6 and 3.2 kilobases in receptor-containing chicken tissues and a major cross-hybridizing receptor mRNA species of 4.2 kilobases in mouse 3T6 fibroblasts. The 4.2-kilobase species was substantially increased by prior exposure of 3T6 cells to 1,25(OH)2D3. This cDNA represents perhaps the rarest mRNA cloned to date in eukaryotes, as well as the first receptor sequence described for an authentic vitamin.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉McDonnell, D P -- Mangelsdorf, D J -- Pike, J W -- Haussler, M R -- O'Malley, B W -- New York, N.Y. -- Science. 1987 Mar 6;235(4793):1214-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3029866" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Calcitriol/metabolism ; Chickens/*metabolism ; Cholecalciferol/*metabolism ; Cloning, Molecular ; DNA/*genetics ; Genetic Code ; Mice ; Molecular Conformation ; RNA, Messenger/metabolism ; Receptors, Steroid/*genetics/metabolism
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    A nerve growth factor-induced gene encodes a possible transcriptional regulatory factor (1987)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1987-11-06
    Description: Nerve growth factor (NGF) is a trophic agent that promotes the outgrowth of nerve fibers from sympathetic and sensory ganglia. The neuronal differentiation stimulated by this hormone was examined in the NGF-responsive cell line PC12. Differential hybridization was used to screen a complementary DNA library constructed from PC12 cells treated with NGF and cycloheximide. One of the complementary DNA clones that was rapidly induced by NGF was found to have a nucleotide sequence that predicts a 54-kilodalton protein with homology to transcriptional regulatory proteins. This clone, NGFI-A, contains three tandemly repeated copies of the 28- to 30-amino acid "zinc finger" domain present in Xenopus laevis TFIIIA and other DNA-binding proteins. It also contains another highly conserved unit of eight amino acids that is repeated at least 11 times. The NGFI-A gene is expressed at relatively high levels in the brain, lung, and superior cervical ganglion of the adult rat.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Milbrandt, J -- NS01018/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1987 Nov 6;238(4828):797-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pathology, Washington University School of Medicine, St. Louis, MO 63110.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3672127" target="_blank"〉PubMed〈/a〉
    Keywords: Adrenal Gland Neoplasms ; Amino Acid Sequence ; Animals ; Base Sequence ; Cell Line ; Cycloheximide/pharmacology ; DNA/metabolism ; Genes/*drug effects ; Genes, Regulator/drug effects ; Molecular Sequence Data ; Molecular Weight ; Nerve Growth Factors/*pharmacology ; Pheochromocytoma ; Sequence Homology, Nucleic Acid ; Transcription Factors/*genetics
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    Ubiquitin is a component of paired helical filaments in Alzheimer's disease (1987)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1987-03-27
    Description: Paired helical filaments (PHF), which constitute a distinct type of pathological neuronal fiber, are the principal constituent of neurofibrillary tangles that occur in the brain of patients with Alzheimer's disease. Their insolubility in sodium dodecyl sulfate and urea has prevented the analysis of their subunit composition by gel electrophoresis. A monoclonal antibody (DF2) was isolated that specifically labeled PHF at both the light and electron microscopic levels. It labeled a small polypeptide (5 kilodaltons) that was shown to be ubiquitin in immunoblots of the soluble fraction of brain homogenates. To obtain direct evidence that ubiquitin is a component of PHF, PHF were treated with concentrated formic acid and digested with lysylendopeptidase; ubiquitin-derived peptides were then identified by reversed-phase high-performance liquid chromatography. Two fragments in the PHF digest were identified as derived from ubiquitin by protein sequencing. This procedure should make possible definitive identification of other PHF components.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mori, H -- Kondo, J -- Ihara, Y -- New York, N.Y. -- Science. 1987 Mar 27;235(4796):1641-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3029875" target="_blank"〉PubMed〈/a〉
    Keywords: Alzheimer Disease/*pathology ; Amino Acid Sequence ; Antibodies, Monoclonal ; Chromatography, High Pressure Liquid ; Cytoskeleton/*pathology ; Humans ; Intermediate Filaments/*pathology ; Microscopy, Electron ; Molecular Weight ; Sodium Dodecyl Sulfate ; Solubility ; Ubiquitins/*analysis ; Urea
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    Genomic organization and deduced amino acid sequence of a putative sodium channel gene in Drosophila (1987)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1987-08-14
    Description: The deduced amino acid sequence of a Drosophila gene isolated with a vertebrate sodium channel complementary DNA probe revealed an organization virtually identical to the vertebrate sodium channel protein; four homologous domains containing all putative membrane-spanning regions are repeated in tandem with connecting linkers of various sizes. All areas of the protein presumed to be critical for channel function show high evolutionary conservation. These include those proposed to function in voltage-sensitive gating, inactivation, and ion selectivity. All 24 putative gating charges of the vertebrate protein are in identical positions in the Drosophila gene. Ten introns interrupt the coding regions of the four homology units; introns with positions conserved among homology units bracket a region hypothesized to be the selectivity filter for the channel. The Drosophila gene maps to the right arm of the second chromosome in region 60D-E. This position does not coincide with any known mutations that confer behavioral phenotypes, but is close to the seizure locus (60A-B), which has been hypothesized to code for a voltage-sensitive sodium channel.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Salkoff, L -- Butler, A -- Wei, A -- Scavarda, N -- Giffen, K -- Ifune, C -- Goodman, R -- Mandel, G -- 1 R01 NS24785-01/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1987 Aug 14;237(4816):744-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2441469" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Biological Evolution ; DNA/genetics ; DNA Restriction Enzymes ; Drosophila/*genetics ; Drosophila melanogaster/genetics ; Electrophorus/genetics ; Exons ; Gene Expression Regulation ; Introns ; *Ion Channels ; Membrane Proteins/*genetics ; RNA, Messenger/genetics ; Sequence Homology, Nucleic Acid ; Sodium/*metabolism
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    New perspectives in cell adhesion: RGD and integrins (1987)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1987-10-23
    Description: Rapid progress has been made in the understanding of the molecular interactions that result in cell adhesion. Many adhesive proteins present in extracellular matrices and in the blood contain the tripeptide arginine-glycine-aspartic acid (RGD) as their cell recognition site. These proteins include fibronectin, vitronectin, osteopontin, collagens, thrombospondin, fibrinogen, and von Willebrand factor. The RGD sequences of each of the adhesive proteins are recognized by at least one member of a family of structurally related receptors, integrins, which are heterodimeric proteins with two membrane-spanning subunits. Some of these receptors bind to the RGD sequence of a single adhesion protein only, whereas others recognize groups of them. The conformation of the RGD sequence in the individual proteins may be critical to this recognition specificity. On the cytoplasmic side of the plasma membrane, the receptors connect the extracellular matrix to the cytoskeleton. More than ten proved or suspected RGD-containing adhesion-promoting proteins have already been identified, and the integrin family includes at least as many receptors recognizing these proteins. Together, the adhesion proteins and their receptors constitute a versatile recognition system providing cells with anchorage, traction for migration, and signals for polarity, position, differentiation, and possibly growth.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ruoslahti, E -- Pierschbacher, M D -- CA 28896/CA/NCI NIH HHS/ -- CA 30199/CA/NCI NIH HHS/ -- CA 42507/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1987 Oct 23;238(4826):491-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉La Jolla Cancer Research Foundation, CA 92037.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2821619" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; *Cell Adhesion ; Extracellular Matrix/physiology ; Glycoproteins ; Integrins ; Membrane Glycoproteins/*physiology ; Membrane Proteins/physiology ; Oligopeptides/*physiology ; Receptors, Cell Surface
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    Human lipoprotein lipase complementary DNA sequence (1987)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1987-03-27
    Description: Lipoprotein lipase is a key enzyme of lipid metabolism that acts to hydrolyze triglycerides, providing free fatty acids for cells and affecting the maturation of circulating lipoproteins. It has been proposed that the enzyme plays a role in the development of obesity and atherosclerosis. The human enzyme has been difficult to purify and its protein sequence was heretofore undetermined. A complementary DNA for human lipoprotein lipase that codes for a mature protein of 448 amino acids has now been cloned and sequenced. Analysis of the sequence indicates that human lipoprotein lipase, hepatic lipase, and pancreatic lipase are members of a gene family. Two distinct species of lipoprotein lipase messenger RNA that arise from alternative sites of 3'-terminal polyadenylation were detected in several different tissues.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wion, K L -- Kirchgessner, T G -- Lusis, A J -- Schotz, M C -- Lawn, R M -- HL28481/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1987 Mar 27;235(4796):1638-41.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3823907" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Base Sequence ; DNA/*analysis ; Fatty Acids, Nonesterified/metabolism ; Humans ; Lipase/analysis/genetics ; Lipoprotein Lipase/analysis/*genetics ; Liver/enzymology ; Nucleic Acid Hybridization
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    Recruitment of enzymes as lens structural proteins (1987)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1987-06-19
    Description: Crystallins, the principal components of the lens, have been regarded simply as soluble, structural proteins. It now appears that the major taxon-specific crystallins of vertebrates and invertebrates are either enzymes or closely related to enzymes. In terms of sequence similarity, size, and other physical characteristics delta-crystallin is closely related to argininosuccinate lyase, tau-crystallin to enolase, and SIII-crystallin to glutathione S-transferase; moreover, it has recently been demonstrated that epsilon-crystallin is an active lactate dehydrogenase. Enzymes may have been recruited several times as lens proteins, perhaps because of the developmental history of the tissue or simply because of evolutionary pragmatism (the selection of existing stable structures for a new structural role).〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wistow, G -- Piatigorsky, J -- New York, N.Y. -- Science. 1987 Jun 19;236(4808):1554-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3589669" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Crystallins/genetics/*metabolism ; Decapodiformes ; Enzymes/genetics/*metabolism ; Humans ; Lens, Crystalline/metabolism ; Sequence Homology, Nucleic Acid ; Xenopus
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    Evidence for dispensable sequences inserted into a nucleotide fold (1987)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1987-09-25
    Description: Previous experimental results along with the structural modeling presented indicate that a nucleotide fold starts in the amino-terminal part of Escherichia coli isoleucyl-transfer RNA synthetase, a single chain polypeptide of 939 amino acids. Internal deletions were created in the region of the nucleotide fold. A set of deletions that collectively span 145 contiguous amino acids yielded active enzymes. Further extensions of the deletions yielded inactive or unstable proteins. The three-dimensional structure of an evidently homologous protein suggests that the active deletions lack portions of a segment that connects two parts of the nucleotide fold. Therefore, the results imply that removal of major sections of the polypeptide that connects these two parts of the fold does not result in major perturbation of the nucleotide binding site.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Starzyk, R M -- Webster, T A -- Schimmel, P -- GM23562/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1987 Sep 25;237(4822):1614-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3306924" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; *Amino Acyl-tRNA Synthetases ; Bacterial Proteins ; Binding Sites ; Escherichia coli/enzymology ; Hydrogen Bonding ; *Isoleucine-tRNA Ligase ; *Methionine-tRNA Ligase ; Protein Conformation ; RNA, Transfer/*metabolism ; Structure-Activity Relationship ; Transfer RNA Aminoacylation
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    A parathyroid hormone-related protein implicated in malignant hypercalcemia: cloning and expression (1987)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1987-08-21
    Description: Humoral hypercalcemia of malignancy is a common complication of lung and certain other cancers. The hypercalcemia results from the actions of tumor factors on bone and kidney. We report here the isolation of full-length complementary DNA clones of a putative hypercalcemia factor, and the expression from the cloned DNA of the active protein in mammalian cells. The clones encode a prepro peptide of 36 amino acids and a mature protein of 141 amino acids that has significant homology with parathyroid hormone in the amino-terminal region. This previously unrecognized hormone may be important in normal as well as abnormal calcium metabolism.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Suva, L J -- Winslow, G A -- Wettenhall, R E -- Hammonds, R G -- Moseley, J M -- Diefenbach-Jagger, H -- Rodda, C P -- Kemp, B E -- Rodriguez, H -- Chen, E Y -- New York, N.Y. -- Science. 1987 Aug 21;237(4817):893-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3616618" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Cell Line ; Cloning, Molecular ; DNA/genetics ; Gene Expression Regulation ; Humans ; Hypercalcemia/*genetics ; Lung Neoplasms/complications/*genetics ; Neoplasm Proteins/*genetics ; Parathyroid Hormone/genetics ; Parathyroid Hormone-Related Protein
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    Human proto-oncogene c-jun encodes a DNA binding protein with structural and functional properties of transcription factor AP-1 (1987)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1987-12-04
    Description: Nuclear oncogene products have the potential to induce alterations in gene regulation leading to the genesis of cancer. The biochemical mechanisms by which nuclear oncoproteins act remain unknown. Recently, an oncogene, v-jun, was found to share homology with the DNA binding domain of a yeast transcription factor, GCN4. Furthermore, GCN4 and the phorbol ester-inducible enhancer binding protein, AP-1, recognize very similar DNA sequences. The human proto-oncogene c-jun has now been isolated, and the deduced amino acid sequence indicates more than 80 percent identity with v-jun. Expression of cloned c-jun in bacteria produced a protein with sequence-specific DNA binding properties identical to AP-1. Antibodies raised against two distinct peptides derived from v-jun reacted specifically with human AP-1. In addition, partial amino acid sequence of purified AP-1 revealed tryptic peptides in common with the c-jun protein. The structural and functional similarities between the c-jun product and the enhancer binding protein suggest that AP-1 may be encoded by c-jun. These findings demonstrate that the proto-oncogene product of c-jun interacts directly with specific target DNA sequences to regulate gene expression, and therefore it may now be possible to identify genes under the control of c-jun that affect cell growth and neoplasia.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bohmann, D -- Bos, T J -- Admon, A -- Nishimura, T -- Vogt, P K -- Tjian, R -- CA25417/CA/NCI NIH HHS/ -- CA42564/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1987 Dec 4;238(4832):1386-92.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Department of Biochemistry, University of California, Berkeley, CA 94720.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2825349" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Antibodies/immunology ; Avian Sarcoma Viruses/genetics ; Base Sequence ; Cross Reactions ; DNA/genetics ; DNA-Binding Proteins/genetics/immunology/*physiology ; Enhancer Elements, Genetic ; Fungal Proteins/genetics ; Gene Expression Regulation ; Genes, Viral ; Humans ; Molecular Sequence Data ; Oncogene Protein p65(gag-jun) ; Oncogenes ; *Protein Kinases ; Proto-Oncogene Proteins/genetics/immunology/*physiology ; Proto-Oncogene Proteins c-jun ; *Proto-Oncogenes ; Recombinant Proteins/genetics ; Retroviridae Proteins/genetics ; Saccharomyces cerevisiae/genetics ; *Saccharomyces cerevisiae Proteins ; Sequence Homology, Nucleic Acid ; Transcription Factors/genetics/immunology/*physiology ; Transcription, Genetic
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    Engineering enzyme specificity by "substrate-assisted catalysis" (1987)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1987-07-24
    Description: A novel approach to engineering enzyme specificity is presented in which a catalytic group from an enzyme is first removed by site-directed mutagenesis causing inactivation. Activity is then partially restored by substrates containing the missing catalytic functional group. Replacement of the catalytic His with Ala in the Bacillus amyloliquefaciens subtilisin gene (the mutant is designated His64Ala) by site-directed mutagenesis reduces the catalytic efficiency (kcat/Km) by a factor of a million when assayed with N-succinyl-L-Phe-L-Ala-L-Ala-L-Phe-p-nitroanilide (sFAAF-pNA). Model building studies showed that a His side chain at the P2 position of a substrate bound at the active site of subtilisin could be virtually superimposed on the catalytic His side chain of this serine protease. Accordingly, the His64Ala mutant hydrolyzes a His P2 substrate (sFAHF-pNA) up to 400 times faster than a homologous Ala P2 or Gln P2 substrate (sFAAF-pNA or sFAQF-pNA) at pH 8.0. In contrast, the wild-type enzyme hydrolyzes these three substrates with similar catalytic efficiencies. Additional data from substrate-dependent pH profiles and hydrolysis of large polypeptides indicate that the His64Ala mutant enzyme can recover partially the function of the lost catalytic histidine from a His P2 side chain on the substrate. Such "substrate-assisted catalysis" provides a new basis for engineering enzymes with very narrow and potentially useful substrate specificities. These studies also suggest a possible functional intermediate in the evolution of the catalytic triad of serine proteases.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Carter, P -- Wells, J A -- New York, N.Y. -- Science. 1987 Jul 24;237(4813):394-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3299704" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Enzymes/*metabolism ; Models, Molecular ; Molecular Conformation ; Mutation ; Protein Binding ; Protein Conformation ; Substrate Specificity ; Subtilisins/genetics/*metabolism
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    Synthetic peptide immunoassay distinguishes HIV type 1 and HIV type 2 infections (1987)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1987-09-11
    Description: Efforts to solve the epidemiologic puzzle of AIDS in Africa are complicated by the presence of multiple human retroviruses. Simple serologic tests that unambiguously distinguish among infections by these retroviruses are essential. To that end, a partially conserved immunoreactive epitope was identified in the transmembrane glycoproteins of human immunodeficiency viruses (HIV) types 1 and 2. Synthetic peptides derived from these conserved domains were used in sensitive and specific immunoassays that detect antibodies in sera from patients infected with HIV-1 or HIV-2. By making single amino acid substitutions in the HIV-1 peptide, it was possible to demonstrate HIV-1 strain-specific antibody responses to this epitope. Such custom-designed peptides synthesized from this domain are likely to detect newly discovered HIV types, define infection with specific HIV strains, and allow detection of group-common antibodies.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gnann, J W Jr -- McCormick, J B -- Mitchell, S -- Nelson, J A -- Oldstone, M B -- AI-07007/AI/NIAID NIH HHS/ -- NS-12428/NS/NINDS NIH HHS/ -- T32-NS-07078/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1987 Sep 11;237(4820):1346-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2888192" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Deltaretrovirus Infections/*diagnosis/immunology ; Diagnosis, Differential ; Enzyme-Linked Immunosorbent Assay/methods ; Glycoproteins/genetics ; Humans ; Leukemia, Hairy Cell/*diagnosis/immunology ; Peptides ; Viral Envelope Proteins/genetics
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    Sevenless, a cell-specific homeotic gene of Drosophila, encodes a putative transmembrane receptor with a tyrosine kinase domain (1987)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1987-04-03
    Description: The determination of cell fates during the assembly of the ommatidia in the compound eye of Drosophila appears to be controlled by cell-cell interactions. In this process, the sevenless gene is essential for the development of a single type of photoreceptor cell. In the absence of proper sevenless function the cells that would normally become the R7 photoreceptors instead become nonneuronal cells. Previous morphological and genetic analysis has indicated that the product of the sevenless gene is involved in reading or interpreting the positional information that specifies this particular developmental pathway. The sevenless gene has now been isolated and characterized. The data indicate that sevenless encodes a transmembrane protein with a tyrosine kinase domain. This structural similarity between sevenless and certain hormone receptors suggests that similar mechanisms are involved in developmental decisions based on cell-cell interaction and physiological or developmental changes induced by diffusible factors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hafen, E -- Basler, K -- Edstroem, J E -- Rubin, G M -- GM32795/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1987 Apr 3;236(4797):55-63.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2882603" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Chromosome Mapping ; Cloning, Molecular ; DNA Restriction Enzymes ; Drosophila melanogaster/*embryology/genetics ; Eye/cytology/embryology ; Gene Expression Regulation ; Genes ; *Genes, Homeobox ; Growth Substances/physiology ; Membrane Proteins/genetics ; Phenotype ; Protein-Tyrosine Kinases/*genetics/physiology ; Receptors, Cell Surface/*genetics/physiology ; Transcription, Genetic
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    Atomic structure of thymidylate synthase: target for rational drug design (1987)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1987-01-23
    Description: The atomic structure of thymidylate synthase from Lactobacillus casei was determined at 3 angstrom resolution. The native enzyme is a dimer of identical subunits. The dimer interface is formed by an unusual association between five-stranded beta sheets present in each monomer. Comparison of known sequences with the Lactobacillus casei structure suggests that they all have a common core structure around which loops are inserted or deleted in different sequences. Residues from both subunits contribute to each active site. Two arginine side chains can contribute to binding phosphate on the substrate. The side chains of several conserved amino acids can account for other determinants of substrate binding.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hardy, L W -- Finer-Moore, J S -- Montfort, W R -- Jones, M O -- Santi, D V -- Stroud, R M -- AI 19358/AI/NIAID NIH HHS/ -- CA41323/CA/NCI NIH HHS/ -- GM 24485/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1987 Jan 23;235(4787):448-55.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3099389" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Binding Sites ; Crystallography ; Deoxyuracil Nucleotides/metabolism ; Lactobacillus casei/enzymology ; Models, Molecular ; Protein Conformation ; Structure-Activity Relationship ; *Thymidylate Synthase/antagonists & inhibitors
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    Cloning, sequencing, and expression of the gene coding for the human platelet alpha 2-adrenergic receptor (1987)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1987-10-30
    Description: The gene for the human platelet alpha 2-adrenergic receptor has been cloned with oligonucleotides corresponding to the partial amino acid sequence of the purified receptor. The identity of this gene has been confirmed by the binding of alpha 2-adrenergic ligands to the cloned receptor expressed in Xenopus laevis oocytes. The deduced amino acid sequence is most similar to the recently cloned human beta 2- and beta 1-adrenergic receptors; however, similarities to the muscarinic cholinergic receptors are also evident. Two related genes have been identified by low stringency Southern blot analysis. These genes may represent additional alpha 2-adrenergic receptor subtypes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kobilka, B K -- Matsui, H -- Kobilka, T S -- Yang-Feng, T L -- Francke, U -- Caron, M G -- Lefkowitz, R J -- Regan, J W -- New York, N.Y. -- Science. 1987 Oct 30;238(4827):650-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Department of Medicine, Duke University Medical Center, Durham, NC 27710.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2823383" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Base Sequence ; Blood Platelets/*physiology ; Cloning, Molecular ; GTP-Binding Proteins/metabolism ; Gene Expression Regulation ; Genes ; Humans ; Infant, Newborn ; Membrane Proteins/*genetics ; Molecular Sequence Data ; Multigene Family ; Oligodeoxyribonucleotides ; Phosphoproteins/genetics ; Receptors, Adrenergic, alpha/*genetics
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    Human retinoblastoma susceptibility gene: cloning, identification, and sequence (1987)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1987-03-13
    Description: Recent evidence indicates the existence of a genetic locus in chromosome region 13q14 that confers susceptibility to retinoblastoma, a cancer of the eye in children. A gene encoding a messenger RNA (mRNA) of 4.6 kilobases (kb), located in the proximity of esterase D, was identified as the retinoblastoma susceptibility (RB) gene on the basis of chromosomal location, homozygous deletion, and tumor-specific alterations in expression. Transcription of this gene was abnormal in six of six retinoblastomas examined: in two tumors, RB mRNA was not detectable, while four others expressed variable quantities of RB mRNA with decreased molecular size of about 4.0 kb. In contrast, full-length RB mRNA was present in human fetal retina and placenta, and in other tumors such as neuroblastoma and medulloblastoma. DNA from retinoblastoma cells had a homozygous gene deletion in one case and hemizygous deletion in another case, while the remainder were not grossly different from normal human control DNA. The gene contains at least 12 exons distributed in a region of over 100 kb. Sequence analysis of complementary DNA clones yielded a single long open reading frame that could encode a hypothetical protein of 816 amino acids. A computer-assisted search of a protein sequence database revealed no closely related proteins. Features of the predicted amino acid sequence include potential metal-binding domains similar to those found in nucleic acid-binding proteins. These results provide a framework for further study of recessive genetic mechanisms in human cancers.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lee, W H -- Bookstein, R -- Hong, F -- Young, L J -- Shew, J Y -- Lee, E Y -- New York, N.Y. -- Science. 1987 Mar 13;235(4794):1394-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3823889" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Base Sequence ; *Carboxylesterase ; Carboxylic Ester Hydrolases/genetics ; Chromosome Mapping ; *Chromosomes, Human, Pair 13 ; *Cloning, Molecular ; DNA/genetics ; Eye Neoplasms/*genetics ; Female ; Homozygote ; Humans ; Nucleic Acid Hybridization ; Placenta/analysis ; Pregnancy ; RNA, Messenger/genetics ; Retina/analysis/embryology ; Retinoblastoma/*genetics ; Transcription, Genetic
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    Mutants of bovine pancreatic trypsin inhibitor lacking cysteines 14 and 38 can fold properly (1987)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1987-03-13
    Description: It is a generally accepted principle of biology that a protein's primary sequence is the main determinant of its tertiary structure. However, the mechanism by which a protein proceeds from an unfolded, disordered state to a folded, relatively well-ordered, native conformation is obscure. Studies have been initiated to examine the "genetics" of protein folding, with mutants of bovine pancreatic trypsin inhibitor (BPTI) being used to explore the nature of the specific intramolecular interactions that direct this process. Previous work with BPTI chemically modified at cysteines 14 and 38 indicated that transient disulfide bond formation by these residues contributed to efficient folding at 25 degrees C. In the present work, mutants of BPTI in which these cysteines were replaced by alanines or threonines were made and the mutant proteins were produced by a heterologous Escherichia coli expression system. At 25 degrees C in vitro, the refolding behavior of these mutants was characterized by a pronounced lag. However, when expressed at 37 degrees C in E. coli, or when refolded at 37 degrees or 52 degrees C in vitro, the mutant proteins folded readily into the native conformation, albeit at a rate somewhat slower than that exhibited by wild-type BPTI. These results indicate that, at physiological temperatures, BPTI lacking cysteines 14 and 38 can refold quantitatively.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marks, C B -- Naderi, H -- Kosen, P A -- Kuntz, I D -- Anderson, S -- New York, N.Y. -- Science. 1987 Mar 13;235(4794):1370-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2435002" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; *Aprotinin/genetics ; *Cysteine ; Disulfides ; Escherichia coli/genetics ; Mutation ; Protein Conformation ; Temperature
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    Amyloid beta protein gene: cDNA, mRNA distribution, and genetic linkage near the Alzheimer locus (1987)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1987-02-20
    Description: The amyloid beta protein has been identified as an important component of both cerebrovascular amyloid and amyloid plaques of Alzheimer's disease and Down syndrome. A complementary DNA for the beta protein suggests that it derives from a larger protein expressed in a variety of tissues. Overexpression of the gene in brain tissue from fetuses with Down syndrome (trisomy 21) can be explained by dosage since the locus encoding the beta protein maps to chromosome 21. Regional localization of this gene by both physical and genetic mapping places it in the vicinity of the genetic defect causing the inherited form of Alzheimer's disease.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tanzi, R E -- Gusella, J F -- Watkins, P C -- Bruns, G A -- St George-Hyslop, P -- Van Keuren, M L -- Patterson, D -- Pagan, S -- Kurnit, D M -- Neve, R L -- AG00029/AG/NIA NIH HHS/ -- HD10658/HD/NICHD NIH HHS/ -- HD20118/HD/NICHD NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1987 Feb 20;235(4791):880-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2949367" target="_blank"〉PubMed〈/a〉
    Keywords: Alzheimer Disease/*genetics ; Amino Acid Sequence ; Amyloid/*genetics ; Amyloidosis/genetics ; Brain/physiopathology ; Chromosome Mapping ; *Chromosomes, Human, Pair 21 ; DNA/genetics ; Down Syndrome/genetics ; Gene Expression Regulation ; Genetic Linkage ; Humans ; RNA, Messenger/genetics ; Tissue Distribution ; Transcription, Genetic
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