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  • Journals
  • Articles  (34)
  • Binding Sites
  • 1980-1984  (34)
  • Natural Sciences in General  (34)
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  • Journals
  • Articles  (34)
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  • 1
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    Widespread occurrence in frogs and toads of skin compounds interacting with the ouabain site of Na+, K+-ATPase (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-05-02
    Description: Amphibians of the family Bufonidae contain high levels of skin compounds that both inhibit Na+- and K+-dependent adenosinetriphosphatase and antagonize the binding of ouabain to the enzyme. In species of Bufo and Atelopus, these compounds are relatively nonpolar bufodienolides, whereas Dendrophryniscus and Melanophryniscus contain more polar compounds of unknown structure. Skin extracts from 30 of 48 species of frogs representing an additional eight families contained relatively low levels of compounds that inhibit binding of ouabain to Na+,K+-adenosinetriphosphatase. The widespread occurrence of low levels of inhibitory compounds is consonant with the role for these compounds as physiological regulators of Na+,K+-adenosinetriphosphatase in amphibian skin; high levels in the Bufonidae probably also serve as a defense against some predators.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Flier, J -- Edwards, M W -- Daly, J W -- Myers, C W -- New York, N.Y. -- Science. 1980 May 2;208(4443):503-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6245447" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Anura/*metabolism ; Binding Sites ; Bufanolides/pharmacology ; Ouabain/antagonists & inhibitors/*metabolism ; Skin/analysis/enzymology/*metabolism ; Sodium-Potassium-Exchanging ATPase/*metabolism ; Species Specificity ; Tissue Extracts/pharmacology
    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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    Three-dimensional molecular modeling and drug design (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-06-27
    Description: A discussion of drug-receptor theory is used to show that the three-dimensional structure, or shape, of molecules is important for biological activity. The computer-assisted molecular modeling system at Merck is described, and it is shown that this system is useful for generating and storing molecular structures, determining preferred conformation, comparing molecular shapes, and computing molecular properties. Applications of the system to the study of anti-inflammatory drugs, somatostatin-like compounds, and dihydrofolate reductase inhibitors are summarized.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gund, P -- Andose, J D -- Rhodes, J B -- Smith, G M -- New York, N.Y. -- Science. 1980 Jun 27;208(4451):1425-31.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6104357" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Arachidonic Acids ; Binding Sites ; Computers ; Cyclooxygenase Inhibitors ; Humans ; Indomethacin ; *Models, Molecular ; *Models, Structural ; *Molecular Conformation ; *Pharmaceutical Preparations ; Receptors, Drug/metabolism ; Somatostatin/analogs & derivatives ; 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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    Modeling coordination sites in metallobiomolecules (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-07-11
    Description: Synthetic metal complexes can closely approach the properties of metal ions in proteins and yield useful information concerning biological structure and function.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ibers, J A -- Holm, R H -- New York, N.Y. -- Science. 1980 Jul 11;209(4453):223-35.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7384796" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Binding Sites ; Electron Transport ; Humans ; Iron-Sulfur Proteins ; *Metalloproteins ; *Metals ; Molecular Conformation ; Myoglobin ; Oxygen/blood ; Oxyhemoglobins ; Protein Binding ; Protein Conformation
    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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    Nucleosome cores have two specific binding sites for nonhistone chromosomal proteins HMG 14 and HMG 17 (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-09-26
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mardian, J K -- Paton, A E -- Bunick, G J -- Olins, D E -- GM 19334/GM/NIGMS NIH HHS/ -- GM 7438/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1980 Sep 26;209(4464):1534-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7433974" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Binding Sites ; Chickens ; Chromosomal Proteins, Non-Histone/*metabolism ; Erythrocytes/ultrastructure ; Nucleosomes/*metabolism/ultrastructure ; Poly dA-dT/metabolism ; Protein Binding
    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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  • 5
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    Isolation of biological materials by use of erbium (III)--induced magnetic susceptibilities (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-08-07
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Evans, C H -- Tew, W P -- New York, N.Y. -- Science. 1981 Aug 7;213(4508):653-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7256262" target="_blank"〉PubMed〈/a〉
    Keywords: Binding Sites ; Cations ; *Erbium ; Kinetics ; *Magnetics
    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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  • 6
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    Complete nucleotide sequence and organization of the Moloney murine sarcoma virus genome (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-10-23
    Description: The complete nucleotide sequence of a mammalian transforming retrovirus. Moloney murine sarcoma virus, has been determined. MSV, recombinant virus derived of helper viral and cellular sequences, possesses termini resembling prokaryotic transposable elements. The viral genome has the coding capacity for the Moloney murine leukemia virus gag gene product and contains large deletions in pol and env genes. A large open reading frame encompassing its cell-derived sequences codes for its putative transforming protein. The nature of some of the important domains in the viral genome has been established, and their structure is discussed in relation to their function.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Reddy, E P -- Smith, M J -- Aaronson, S A -- New York, N.Y. -- Science. 1981 Oct 23;214(4519):445-50.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6170110" target="_blank"〉PubMed〈/a〉
    Keywords: Antigens, Viral/genetics ; Base Sequence ; Binding Sites ; Cell Transformation, Viral ; DNA, Viral/*genetics ; Defective Viruses/genetics ; Gene Products, gag ; *Genes, Viral ; Moloney murine leukemia virus/*genetics ; RNA, Transfer/genetics ; RNA-Directed DNA Polymerase/genetics ; Repetitive Sequences, Nucleic Acid ; Sarcoma Viruses, Murine/*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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  • 7
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    Biospecific labeling with undecagold: visualization of the biotin-binding site on avidin (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1982-10-15
    Description: The biotin-binding site on avidin has been labeled with biotin conjugated to undecagold, an organometallic cluster compound containing 11 gold atoms in a core angestroms in diameter. Examination of unstained specimens by scanning transmission electron microscopy reveals the labeled sites directly, without computational averaging or filtering of the images. This approach should be widely applicable for determining the locations of subunits and functional site in biological macromolecules at a resolution at a resolution in range of 15 angstroms.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Safer, D -- Hainfeld, J -- Wall, J S -- Reardon, J E -- AM 28607/AM/NIADDK NIH HHS/ -- GM 12202/GM/NIGMS NIH HHS/ -- GM 28750/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1982 Oct 15;218(4569):290-1.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7123234" target="_blank"〉PubMed〈/a〉
    Keywords: Avidin/*metabolism ; Binding Sites ; Biotin/*metabolism ; Gold/*metabolism ; Organogold Compounds ; Organometallic Compounds/*metabolism ; Ovalbumin/*analogs & derivatives
    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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    Cyclic AMP receptor protein: role in transcription activation (1984)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1984-05-25
    Description: The structure of this pleiotropic activator of gene transcription in bacteria and its interaction sites at promoter DNA's as well as the role of this protein in the RNA polymerase-promoter interactions are reviewed.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉de Crombrugghe, B -- Busby, S -- Buc, H -- New York, N.Y. -- Science. 1984 May 25;224(4651):831-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6372090" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; Binding Sites ; Crystallography ; DNA, Bacterial/metabolism ; DNA-Directed RNA Polymerases/metabolism ; Galactose/genetics ; *Gene Expression Regulation ; Lac Operon ; Operon ; Protein Conformation ; Receptors, Cyclic AMP/*physiology ; *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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  • 9
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    Amphiphilic secondary structure: design of peptide hormones (1984)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1984-01-20
    Description: Peptide synthesis can be used for elucidating the roles of secondary structures in the specificity of hormones, antigens, and toxins. Intermediate sized peptides with these activities assume amphiphilic secondary structures in the presence of membranes. When models are designed to optimize the amphiphilicity of the secondary structure, stronger interactions can be observed with the synthetic peptides than with the naturally occurring analogs.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kaiser, E T -- Kezdy, F J -- HL-18577/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1984 Jan 20;223(4633):249-55.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6322295" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Apolipoprotein A-I ; Apolipoproteins ; Binding Sites ; Calcitonin ; Chemical Phenomena ; Chemistry ; Corticotropin-Releasing Hormone ; Endorphins ; Glucagon ; Growth Hormone-Releasing Hormone ; *Hormones/pharmacology ; Lipoproteins, HDL ; Melitten ; Models, Structural ; *Peptides/chemical synthesis/metabolism/pharmacology ; Protein Conformation ; Structure-Activity Relationship ; beta-Endorphin
    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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    Analyzing nonlinear scatchard plots (1984)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1984-01-06
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Light, K E -- New York, N.Y. -- Science. 1984 Jan 6;223(4631):76-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6546323" target="_blank"〉PubMed〈/a〉
    Keywords: Amphetamines/*metabolism ; Animals ; Binding Sites ; Brain Chemistry ; *Carrier Proteins ; Mathematics ; *Radioligand Assay ; Rats ; Receptors, Adrenergic/*metabolism ; 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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