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  • Amino Acid Sequence  (67)
  • Transcription, Genetic  (37)
  • American Association for the Advancement of Science (AAAS)  (95)
  • Copernicus
  • 1985-1989  (95)
  • 1987  (95)
Collection
Keywords
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  • American Association for the Advancement of Science (AAAS)  (95)
  • Copernicus
Years
  • 1985-1989  (95)
Year
  • 1
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    Biochemistry of information storage in the nervous system (1987)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1987-06-05
    Description: The use of molecular biological approaches has defined new mechanisms that store information in the mammalian nervous system. Environmental stimuli alter steady-state levels of messenger RNA species encoding neurotransmitters, thereby altering synaptic, neuronal, and network function over time. External or internal stimuli alter impulse activity, which alters membrane depolarization and selectively changes the expression of specific transmitter genes. These processes occur in diverse peripheral and central neurons, suggesting that information storage is widespread in the neuraxis. The temporal profile of any particular molecular mnemonic process is determined by specific kinetics of turnover and by the geometry of the neuron resulting in axonal transport of molecules to different synaptic arrays at different times. Generally, transmitters, the agents of millisecond-to-millisecond communication, are subject to relatively long-lasting changes in expression, ensuring that ongoing physiological function is translated into information storage.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Black, I B -- Adler, J E -- Dreyfus, C F -- Friedman, W F -- LaGamma, E F -- Roach, A H -- HD 12108/HD/NICHD NIH HHS/ -- NS 10259/NS/NINDS NIH HHS/ -- NS 20788/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1987 Jun 5;236(4806):1263-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2884727" target="_blank"〉PubMed〈/a〉
    Keywords: Adrenal Medulla/metabolism ; Animals ; Brain/physiology ; Memory/*physiology ; Nervous System/anatomy & histology/metabolism ; *Nervous System Physiological Phenomena ; Neurons/physiology ; Neurotransmitter Agents/metabolism/*physiology ; Sympathetic Nervous System/metabolism/physiology ; Transcription, Genetic
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 2
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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
    Published by American Association for the Advancement of Science (AAAS)
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  • 3
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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
    Published by American Association for the Advancement of Science (AAAS)
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  • 4
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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
    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 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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  • 6
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    Transformation of rat fibroblasts by FSV rapidly increases glucose transporter gene transcription (1987)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1987-03-20
    Description: Elevation of glucose transport is an alteration common to most virally induced tumors. Rat fibroblasts transformed with wild-type or a temperature-sensitive Fujinami sarcoma virus (FSV) were studied in order to determine the mechanisms underlying the increased transport. Five- to tenfold increases in total cellular glucose transporter protein in response to transformation were accompanied by similar increases in transporter messenger RNA levels. This, in turn, was preceded by an absolute increase in the rate of glucose transporter gene transcription within 30 minutes after shift of the temperature-sensitive FSV-transformed cells to the permissive temperature. The transporter messenger RNA levels in transformed fibroblasts were higher than those found in proliferating cells maintained at the nonpermissive temperature. The activation of transporter gene transcription by transformation represents one of the earliest known effects of oncogenesis on the expression of a gene encoding a protein of well-defined function.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Birnbaum, M J -- Haspel, H C -- Rosen, O M -- AM35430-01/AM/NIADDK NIH HHS/ -- DK 35158/DK/NIDDK NIH HHS/ -- New York, N.Y. -- Science. 1987 Mar 20;235(4795):1495-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3029870" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Avian Sarcoma Viruses ; Cell Division ; Cell Line ; *Cell Transformation, Viral ; Fibroblasts ; Gene Expression Regulation ; Kinetics ; Monosaccharide Transport Proteins/*genetics ; RNA, Messenger/genetics ; Rats ; Transcription, Genetic
    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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  • 7
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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
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 8
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    The adenovirus major late transcription factor activates the rat gamma-fibrinogen promoter (1987)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1987-10-30
    Description: The major late transcription factor (MLTF) is a 46-kilodalton polypeptide that specifically binds to and activates transcription from the major late promoter of adenovirus. The presence of this promoter-specific transcription factor in uninfected HeLa cell extracts suggests that MLTF is also involved in the transcription of cellular genes. This report demonstrates that MLTF specifically stimulates transcription of the rat gamma-fibrinogen gene through a high-affinity binding site. Stimulation of transcription by MLTF was not dependent on the exact position of the MLTF binding site with respect either to the transcription initiation site or to adjacent promoter elements. These results suggest that one of the cellular functions of MLTF is to control gamma-fibrinogen gene expression.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chodosh, L A -- Carthew, R W -- Morgan, J G -- Crabtree, G R -- Sharp, P A -- P01-CA42063/CA/NCI NIH HHS/ -- P30-CA14051/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1987 Oct 30;238(4827):684-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, Massachusetts Institute of Technology, Cambridge 02139.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3672119" target="_blank"〉PubMed〈/a〉
    Keywords: Adenoviruses, Human/*genetics ; Animals ; DNA-Binding Proteins/*genetics ; Fibrinogen/*genetics ; *Gene Expression Regulation ; *Promoter Regions, Genetic ; RNA Polymerase II/metabolism ; Rats ; Regulatory Sequences, Nucleic Acid ; Transcription Factors/*genetics ; Transcription, Genetic ; Viral Proteins/genetics
    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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  • 9
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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
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 10
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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
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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