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  • Amino Acid Sequence  (771)
  • Chemistry
  • American Association for the Advancement of Science (AAAS)  (784)
  • Silver Spring, MD
  • Tehran, Iran
  • 1990-1994  (784)
Collection
Keywords
Publisher
  • American Association for the Advancement of Science (AAAS)  (784)
  • Silver Spring, MD
  • Tehran, Iran
  • Wiley-Blackwell  (50,825)
  • Springer  (4)
Years
Year
  • 1
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    A receptor component of the chloroplast protein translocation machinery (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-12-23
    Description: The chloroplast outer envelope protein OEP86 functions as a receptor in precursor protein translocation into chloroplasts. Sequence analysis suggests that the precursor of OEP86 is directed to the chloroplast outer envelope by a cleavable, negatively charged, and unusually long amino-terminal peptide. This presequence is unlike other potential targeting signals and suggests the existence of another membrane insertion pathway. Insertion of precursor OEP86 required the hydrolysis of adenosine triphosphate and the existence of surface exposed chloroplast membrane components, and it was not competed by another precursor protein destined for the internal plastid compartments.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hirsch, S -- Muckel, E -- Heemeyer, F -- von Heijne, G -- Soll, J -- New York, N.Y. -- Science. 1994 Dec 23;266(5193):1989-92.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Botanisches Institut, Universitat Kiel, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7801125" target="_blank"〉PubMed〈/a〉
    Keywords: Adenosine Triphosphate/metabolism ; Amino Acid Sequence ; Chloroplast Proteins ; Chloroplasts/*metabolism ; *GTP-Binding Proteins ; Hydrogen-Ion Concentration ; Intracellular Membranes/metabolism ; Molecular Sequence Data ; Molecular Weight ; Peas ; Plant Proteins/chemistry/*metabolism ; Protein Precursors/chemistry/*metabolism ; Protein Processing, Post-Translational ; Ribulose-Bisphosphate Carboxylase/metabolism
    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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    Crystal structure of the catalytic domain of HIV-1 integrase: similarity to other polynucleotidyl transferases (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-12-23
    Description: HIV integrase is the enzyme responsible for inserting the viral DNA into the host chromosome; it is essential for HIV replication. The crystal structure of the catalytically active core domain (residues 50 to 212) of HIV-1 integrase was determined at 2.5 A resolution. The central feature of the structure is a five-stranded beta sheet flanked by helical regions. The overall topology reveals that this domain of integrase belongs to a superfamily of polynucleotidyl transferases that includes ribonuclease H and the Holliday junction resolvase RuvC. The active site region is identified by the position of two of the conserved carboxylate residues essential for catalysis, which are located at similar positions in ribonuclease H. In the crystal, two molecules form a dimer with a extensive solvent-inaccessible interface of 1300 A2 per monomer.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dyda, F -- Hickman, A B -- Jenkins, T M -- Engelman, A -- Craigie, R -- Davies, D R -- New York, N.Y. -- Science. 1994 Dec 23;266(5193):1981-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Molecular Biology, NIDDK, NIH, Bethesda, MD 20892-0560.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7801124" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Binding Sites ; Crystallization ; Crystallography, X-Ray ; DNA Nucleotidyltransferases/*chemistry ; HIV-1/*enzymology ; Hydrogen Bonding ; Integrases ; Models, Molecular ; Molecular Sequence Data ; Protein Folding ; Protein Structure, Secondary ; Ribonuclease H/chemistry ; Solubility ; Virus Integration
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  • 3
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    Fatty acylation of two internal lysine residues required for the toxic activity of Escherichia coli hemolysin (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-12-23
    Description: Hemolysin of Escherichia coli is activated by fatty acylation of the protoxin, directed by the putative acyl transferase HlyC and by acyl carrier protein (ACP). Mass spectrometry and Edman degradation of proteolytic products from mature toxin activated in vitro with tritium-labeled acylACP revealed two fatty-acylated internal lysine residues, lysine 564 and lysine 690. Resistance of the acylation to chemical treatments suggested that fatty acid was amide linked. Substitution of the two lysines confirmed that they were the only sites of acylation and showed that although each was acylated in the absence of the other, both sites were required for in vivo toxin activity.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stanley, P -- Packman, L C -- Koronakis, V -- Hughes, C -- New York, N.Y. -- Science. 1994 Dec 23;266(5193):1992-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pathology, Cambridge University, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7801126" target="_blank"〉PubMed〈/a〉
    Keywords: Acyl Carrier Protein/metabolism ; Acylation ; Acyltransferases/metabolism ; Amino Acid Sequence ; Animals ; Bacterial Proteins/chemistry/metabolism/*toxicity ; Bacterial Toxins/chemistry/metabolism/*toxicity ; *Escherichia coli ; *Escherichia coli Proteins ; Hemolysin Proteins/chemistry/metabolism/*toxicity ; Hemolysis ; Horses ; Lysine/metabolism ; Mass Spectrometry ; Molecular Sequence Data ; Protein Precursors/metabolism ; Sequence Alignment
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  • 4
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    Reconstitution of transcription factor SL1: exclusive binding of TBP by SL1 or TFIID subunits (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-12-23
    Description: RNA polymerase I and II transcription factors SL1 and TFIID, respectively, are composed of the TATA-binding protein (TBP) and a set of TBP-associated factors (TAFs) responsible for promoter recognition. How the universal transcription factor TBP becomes committed to a TFIID or SL1 complex has not been known. Complementary DNAs encoding each of the three TAFIs that are integral components of SL1 have not been isolated. Analysis of subunit interactions indicated that the three TAFIs can bind individually and specifically to TBP. In addition, these TAFIs interact with each other to form a stable TBP-TAF complex. When TBP was bound first by either TAFI110, 63, or 48, subunits of TFIID such as TAFII250 and 150 did not bind TBP. Conversely, if TBP first formed a complex with TAFII250 or 150, the subunits of SL1 did not bind TBP. These results suggest that a mutually exclusive binding specificity for TBP intrinsic to SL1 and TFIID subunits directs the formation of promoter- and RNA polymerase-selective TBP-TAF complexes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Comai, L -- Zomerdijk, J C -- Beckmann, H -- Zhou, S -- Admon, A -- Tjian, R -- New York, N.Y. -- Science. 1994 Dec 23;266(5193):1966-72.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Department of Molecular and Cell Biology, University of California at Berkeley 94720-3204.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7801123" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Base Sequence ; Binding, Competitive ; Cloning, Molecular ; DNA, Complementary/genetics ; DNA-Binding Proteins/chemistry/genetics/isolation & purification/*metabolism ; HeLa Cells ; Humans ; Molecular Sequence Data ; *Pol1 Transcription Initiation Complex Proteins ; Promoter Regions, Genetic ; Protein Binding ; RNA Polymerase I/metabolism ; TATA Box ; *TATA-Binding Protein Associated Factors ; TATA-Box Binding Protein ; Transcription Factor TFIID ; Transcription Factors/chemistry/genetics/isolation & purification/*metabolism ; Transcription, Genetic
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  • 5
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    Binding and stimulation of HIV-1 integrase by a human homolog of yeast transcription factor SNF5 (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-12-23
    Description: Upon entry into a host cell, retroviruses direct the reverse transcription of the viral RNA genome and the establishment of an integrated proviral DNA. The retroviral integrase protein (IN) is responsible for the insertion of the viral DNA into host chromosomal targets. The two-hybrid system was used to identify a human gene product that binds tightly to the human immunodeficiency virus-type 1 (HIV-1) integrase in vitro and stimulates its DNA-joining activity. The sequence of the gene suggests that the protein is a human homolog of yeast SNF5, a transcriptional activator required for high-level expression of many genes. The gene, termed INI1 (for integrase interactor 1), may encode a nuclear factor that promotes integration and targets incoming viral DNA to active genes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kalpana, G V -- Marmon, S -- Wang, W -- Crabtree, G R -- Goff, S P -- U01 AI 24845/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1994 Dec 23;266(5193):2002-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Department of Biochemistry and Molecular Biophysics, Columbia University, College of Physicians and Surgeons, New York, NY 10032.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7801128" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Base Sequence ; Chromosomal Proteins, Non-Histone ; DNA Nucleotidyltransferases/*metabolism ; DNA, Complementary/genetics ; DNA, Viral/metabolism ; DNA-Binding Proteins/chemistry/genetics/*metabolism ; HIV-1/*enzymology/genetics ; Humans ; Integrases ; Molecular Sequence Data ; Molecular Weight ; Oligodeoxyribonucleotides/metabolism ; Open Reading Frames ; Sequence Alignment ; Transcription Factors/chemistry/*metabolism ; Tumor Cells, Cultured ; Virus Integration ; Zinc Fingers
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  • 6
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    An all D-amino acid opioid peptide with central analgesic activity from a combinatorial library (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-12-23
    Description: A synthetic combinatorial library containing 52,128,400 D-amino acid hexapeptides was used to identify a ligand for the mu opioid receptor. The peptide, Ac-rfwink-NH2, bears no resemblance to any known opioid peptide. Simulations using molecular dynamics, however, showed that three amino acid moieties have the same spatial orientation as the corresponding pharmacophoric groups of the opioid peptide PLO17. Ac-rfwink-NH2 was shown to be a potent agonist at the mu receptor and induced long-lasting analgesia in mice. Analgesia produced by intraperitoneally administered Ac-rfwink-NH2 was blocked by intracerebroventricular administration of naloxone, demonstrating that this peptide may cross the blood-brain barrier.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dooley, C T -- Chung, N N -- Wilkes, B C -- Schiller, P W -- Bidlack, J M -- Pasternak, G W -- Houghten, R A -- DA-000138/DA/NIDA NIH HHS/ -- DA-02615/DA/NIDA NIH HHS/ -- DA-03742/DA/NIDA NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1994 Dec 23;266(5193):2019-22.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Torrey Pines Institute for Molecular Studies, San Diego, CA 92121.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7801131" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Analgesics/chemistry/metabolism/*pharmacology ; Animals ; Brain/metabolism ; Dose-Response Relationship, Drug ; Endorphins/pharmacology ; Enkephalin, Ala(2)-MePhe(4)-Gly(5)- ; Enkephalin, D-Penicillamine (2,5)- ; Enkephalins/metabolism ; Guinea Pigs ; Injections, Intraventricular ; Male ; Mice ; Models, Molecular ; Molecular Sequence Data ; Naloxone/administration & dosage/pharmacology ; Opioid Peptides/chemistry/metabolism/*pharmacology ; Pain Measurement ; Protein Conformation ; Rats ; Receptors, Opioid, mu/agonists/metabolism ; Stereoisomerism
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  • 7
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    A unified polymerase mechanism for nonhomologous DNA and RNA polymerases (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-12-23
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Steitz, T A -- Smerdon, S J -- Jager, J -- Joyce, C M -- GM28550/GM/NIGMS NIH HHS/ -- GM39546/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1994 Dec 23;266(5193):2022-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7528445" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Binding Sites ; Crystallization ; Crystallography, X-Ray ; DNA Polymerase I/*chemistry/metabolism ; DNA-Directed RNA Polymerases/*chemistry/metabolism ; HIV Reverse Transcriptase ; Models, Molecular ; Molecular Sequence Data ; Protein Conformation ; Protein Folding ; RNA-Directed DNA Polymerase/*chemistry/metabolism ; Viral Proteins
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  • 8
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    Identification of herpesvirus-like DNA sequences in AIDS-associated Kaposi's sarcoma (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-12-16
    Description: Representational difference analysis was used to isolate unique sequences present in more than 90 percent of Kaposi's sarcoma (KS) tissues obtained from patients with acquired immunodeficiency syndrome (AIDS). These sequences were not present in tissue DNA from non-AIDS patients, but were present in 15 percent of non-KS tissue DNA samples from AIDS patients. The sequences are homologous to, but distinct from, capsid and tegument protein genes of the Gammaherpesvirinae, herpesvirus saimiri and Epstein-Barr virus. These KS-associated herpesvirus-like (KSHV) sequences appear to define a new human herpesvirus.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chang, Y -- Cesarman, E -- Pessin, M S -- Lee, F -- Culpepper, J -- Knowles, D M -- Moore, P S -- New York, N.Y. -- Science. 1994 Dec 16;266(5192):1865-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pathology, College of Physicians and Surgeons, Columbia University, New York, NY 10032.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7997879" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/*complications ; Amino Acid Sequence ; Base Composition ; Base Sequence ; Blotting, Southern ; Cloning, Molecular ; DNA, Viral/*analysis/chemistry/genetics ; Female ; Herpesviridae/*genetics ; Herpesvirus 2, Saimiriine/genetics ; Herpesvirus 4, Human/genetics ; Humans ; Male ; Molecular Sequence Data ; Nucleic Acid Hybridization ; Open Reading Frames ; Polymerase Chain Reaction ; Retrospective Studies ; Sarcoma, Kaposi/etiology/*virology ; Sequence Homology, Amino Acid
    Print ISSN: 0036-8075
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  • 9
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    Specification of C/EBP function during Drosophila development by the bZIP basic region (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-12-16
    Description: The biologically relevant interactions of a transcription factor are those that are important for function in the organism. Here, a transgenic rescue assay was used to determine which molecular functions of Drosophila CCAAT/enhancer binding protein (C/EBP), a basic region-leucine zipper transcription factor, are required for it to fulfill its essential role during development. Chimeric proteins that contain the Drosophila C/EBP (DmC/EBP) basic region, a heterologous zipper, and a heterologous activation domain could functionally substitute for DmC/EBP. Mammalian C/EBPs were also functional in Drosophila. In contrast, 9 of 25 single amino acid substitutions in the basic region disrupted biological function. Thus, the conserved basic region specifies DmC/EBP activity in the organism.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rorth, P -- New York, N.Y. -- Science. 1994 Dec 16;266(5192):1878-81.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Embryology, Carnegie Institution of Washington, Baltimore, MD 21210.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7997882" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Animals, Genetically Modified ; Base Sequence ; Basic-Leucine Zipper Transcription Factors ; CCAAT-Enhancer-Binding Proteins ; DNA/metabolism ; DNA-Binding Proteins/chemistry/genetics/*physiology ; Drosophila/genetics/*growth & development ; Female ; G-Box Binding Factors ; *Leucine Zippers ; Male ; Molecular Sequence Data ; Nuclear Proteins/chemistry/genetics/*physiology ; Recombinant Fusion Proteins ; Transcription Factors/chemistry/genetics/*physiology ; Transcriptional Activation
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  • 10
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    An alternative to SH2 domains for binding tyrosine-phosphorylated proteins (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-12-16
    Description: Src homology 2 (SH2) domains bind specifically to tyrosine-phosphorylated proteins that participate in signaling by growth factors and oncogenes. A protein domain was identified that bound specifically to the tyrosine-phosphorylated form of its target protein but differs from known SH2 sequences. Phosphotyrosine-binding (PTB) domains were found in two proteins: SHC, a protein implicated in signaling through Ras; and SCK, encoded by a previously uncharacterized gene. The PTB domain of SHC specifically bound to a tyrosine-phosphorylated 145-kilodalton protein. PTB domains are an alternative to SH2 domains for specifically recruiting tyrosine-phosphorylated proteins into signaling complexes and are likely to take part in signaling by many growth factors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kavanaugh, W M -- Williams, L T -- K11 HL02714/HL/NHLBI NIH HHS/ -- R01 HL32898/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1994 Dec 16;266(5192):1862-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medicine, University of California, San Francisco 94143.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7527937" target="_blank"〉PubMed〈/a〉
    Keywords: 3T3 Cells ; *Adaptor Proteins, Signal Transducing ; *Adaptor Proteins, Vesicular Transport ; Amino Acid Sequence ; Animals ; Cell Line ; Humans ; Mice ; Molecular Sequence Data ; Phosphoproteins/*metabolism ; Phosphorylation ; Phosphotyrosine ; Platelet-Derived Growth Factor/pharmacology ; Protein Binding ; Protein-Tyrosine Kinases/chemistry/metabolism ; Proteins/chemistry/*metabolism ; Shc Signaling Adaptor Proteins ; *Signal Transduction ; Tyrosine/*analogs & derivatives/metabolism
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