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  • 1
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    Two-amino acid molecular switch in an epithelial morphogen that regulates binding to two distinct receptors (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2000-10-20
    Description: Ectodysplasin, a member of the tumor necrosis factor family, is encoded by the anhidrotic ectodermal dysplasia (EDA) gene. Mutations in EDA give rise to a clinical syndrome characterized by loss of hair, sweat glands, and teeth. EDA-A1 and EDA-A2 are two isoforms of ectodysplasin that differ only by an insertion of two amino acids. This insertion functions to determine receptor binding specificity, such that EDA-A1 binds only the receptor EDAR, whereas EDA-A2 binds only the related, but distinct, X-linked ectodysplasin-A2 receptor (XEDAR). In situ binding and organ culture studies indicate that EDA-A1 and EDA-A2 are differentially expressed and play a role in epidermal morphogenesis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yan, M -- Wang, L C -- Hymowitz, S G -- Schilbach, S -- Lee, J -- Goddard, A -- de Vos, A M -- Gao, W Q -- Dixit, V M -- New York, N.Y. -- Science. 2000 Oct 20;290(5491):523-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Oncology, Genentech, 1 DNA Way, South San Francisco, CA 94080, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11039935" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Amino Acid Substitution ; Animals ; Binding Sites ; Cell Line ; DNA-Binding Proteins/metabolism ; Ectodermal Dysplasia/genetics ; Ectodysplasins ; Epidermis/embryology/*metabolism ; Humans ; *I-kappa B Proteins ; In Situ Hybridization ; Ligands ; Membrane Proteins/*chemistry/*metabolism ; Mice ; Models, Molecular ; Molecular Sequence Data ; Morphogenesis ; NF-kappa B/metabolism ; Phosphorylation ; Point Mutation ; Protein Conformation ; Proteins/metabolism ; Receptors, Cell Surface/chemistry/genetics/*metabolism ; Recombinant Fusion Proteins/metabolism ; Signal Transduction ; TNF Receptor-Associated Factor 6 ; Transfection
    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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    Convergent solutions to binding at a protein-protein interface (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2000-02-26
    Description: The hinge region on the Fc fragment of human immunoglobulin G interacts with at least four different natural protein scaffolds that bind at a common site between the C(H2) and C(H3) domains. This "consensus" site was also dominant for binding of random peptides selected in vitro for high affinity (dissociation constant, about 25 nanomolar) by bacteriophage display. Thus, this site appears to be preferred owing to its intrinsic physiochemical properties, and not for biological function alone. A 2.7 angstrom crystal structure of a selected 13-amino acid peptide in complex with Fc demonstrated that the peptide adopts a compact structure radically different from that of the other Fc binding proteins. Nevertheless, the specific Fc binding interactions of the peptide strongly mimic those of the other proteins. Juxtaposition of the available Fc-complex crystal structures showed that the convergent binding surface is highly accessible, adaptive, and hydrophobic and contains relatively few sites for polar interactions. These are all properties that may promote cross-reactive binding, which is common to protein-protein interactions and especially hormone-receptor complexes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉DeLano, W L -- Ultsch, M H -- de Vos, A M -- Wells, J A -- New York, N.Y. -- Science. 2000 Feb 18;287(5456):1279-83.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Graduate Group in Biophysics, University of California, San Francisco, CA 94143, USA and Sunesis Pharmaceuticals, 3696 Haven Avenue, Suite C, Redwood City, CA 94063, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10678837" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Amino Acid Substitution ; Binding Sites, Antibody ; Crystallography, X-Ray ; Dimerization ; Evolution, Molecular ; Humans ; Hydrogen Bonding ; Immunoglobulin Fc Fragments/chemistry/*metabolism ; Immunoglobulin G/chemistry/*metabolism ; Ligands ; Models, Molecular ; Molecular Sequence Data ; Peptide Library ; Peptides/chemistry/*metabolism ; Protein Binding ; Protein Conformation ; Protein Structure, Secondary ; Protein Structure, Tertiary ; Receptors, Fc/chemistry/metabolism ; Rheumatoid Factor/chemistry/metabolism ; Staphylococcal Protein A/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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  • 3
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    Structure of ras proteins (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-07-21
    Description: In the Table of Contents of the 24 March 1989 issue, the title of the report "Histamine is an intracellular messenger mediating platelet aggregation" by S. P. Saxena et al. appearing on page 1596 was incorrectly printed.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tong, L -- Milburn, M V -- de Vos, A M -- Kim, S H -- New York, N.Y. -- Science. 1989 Jul 21;245(4915):244.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2665078" target="_blank"〉PubMed〈/a〉
    Keywords: Humans ; Molecular Structure ; Protein Conformation ; *Proto-Oncogene Proteins ; Proto-Oncogene Proteins p21(ras)
    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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  • 4
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    Human growth hormone and extracellular domain of its receptor: crystal structure of the complex (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-01-17
    Description: Binding of human growth hormone (hGH) to its receptor is required for regulation of normal human growth and development. Examination of the 2.8 angstrom crystal structure of the complex between the hormone and the extracellular domain of its receptor (hGHbp) showed that the complex consists of one molecule of growth hormone per two molecules of receptor. The hormone is a four-helix bundle with an unusual topology. The binding protein contains two distinct domains, similar in some respects to immunoglobulin domains. The relative orientation of these domains differs from that found between constant and variable domains in immunoglobulin Fab fragments. Both hGHbp domains contribute residues that participate in hGH binding. In the complex both receptors donate essentially the same residues to interact with the hormone, even though the two binding sites on hGH have no structural similarity. Generally, the hormone-receptor interfaces match those identified by previous mutational analyses. In addition to the hormone-receptor interfaces, there is also a substantial contact surface between the carboxyl-terminal domains of the receptors. The relative extents of the contact areas support a sequential mechanism for dimerization that may be crucial for signal transduction.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉de Vos, A M -- Ultsch, M -- Kossiakoff, A A -- New York, N.Y. -- Science. 1992 Jan 17;255(5042):306-12.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Protein Engineering, Genentech, Inc., South San Francisco, CA 94080.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1549776" target="_blank"〉PubMed〈/a〉
    Keywords: Binding Sites ; Crystallography ; Growth Hormone/*chemistry/metabolism ; Humans ; Hydrogen Bonding ; Models, Molecular ; Molecular Structure ; Mutation ; Receptors, Somatotropin/*chemistry/metabolism ; Signal Transduction
    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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    Dimerization of the extracellular domain of the human growth hormone receptor by a single hormone molecule (1991)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1991-11-08
    Description: Human growth hormone (hGH) forms a 1:2 complex with the extracellular domain of its receptor-binding protein (hGHbp) as studied by crystallization, size exclusion chromatography, calorimetry, and a previously undescribed fluorescence quenching assay. These and other experiments with protein engineered variants of hGH have led to the identification of the binding determinants for two distinct but adjacent sites on hGH for the hGHbp, and the data indicated that there are two overlapping binding sites on the hGHbp for hGH. Furthermore, the binding of hGH to the hGHbp occurred sequentially; a first hGHbp molecule bound to site 1 on hGH and then a second hGHbp bound to site 2. Hormone-induced receptor dimerization is proposed to be relevant to the signal transduction mechanism for the hGH receptor and other related cytokine receptors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cunningham, B C -- Ultsch, M -- De Vos, A M -- Mulkerrin, M G -- Clauser, K R -- Wells, J A -- New York, N.Y. -- Science. 1991 Nov 8;254(5033):821-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Protein Engineering, Genentech, Inc., South San Francisco, CA 94080.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1948064" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Antibodies, Monoclonal ; Binding Sites ; Chromatography, Gel ; Growth Hormone/*metabolism ; Humans ; Kinetics ; Macromolecular Substances ; Models, Structural ; Molecular Sequence Data ; Mutagenesis, Site-Directed ; Protein Conformation ; Receptors, Somatotropin/genetics/isolation & purification/*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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  • 6
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    Structural plasticity in a remodeled protein-protein interface (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-11-14
    Description: Remodeling of the interface between human growth hormone (hGH) and the extracellular domain of its receptor was studied by deleting a critical tryptophan residue (at position 104) in the receptor, creating a large cavity, and selecting a pentamutant of hGH by phage display that fills the cavity and largely restores binding affinity. A 2.1 A resolution x-ray structure of the mutant complex showed that the receptor cavity was filled by selected hydrophobic mutations of hGH. Large structural rearrangements occurred in the interface at sites that were distant from the mutations. Such plasticity may be a means for protein-protein interfaces to adapt to mutations as they coevolve.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Atwell, S -- Ultsch, M -- De Vos, A M -- Wells, J A -- New York, N.Y. -- Science. 1997 Nov 7;278(5340):1125-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Protein Engineering, Genentech, Incorporated, 460 Point San Bruno Boulevard, South San Francisco, CA 94080, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9353194" target="_blank"〉PubMed〈/a〉
    Keywords: Carrier Proteins/*chemistry/genetics/*metabolism ; Crystallography, X-Ray ; Human Growth Hormone/*chemistry/genetics/*metabolism ; Humans ; Hydrogen Bonding ; Models, Molecular ; Mutagenesis ; Peptide Library ; 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
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  • 7
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    Probing the mechanism of staphylococcal nuclease with unnatural amino acids: kinetic and structural studies (1993)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1993-09-17
    Description: Staphylococcal nuclease is an enzyme with enormous catalytic power, accelerating phosphodiester bond hydrolysis by a factor of 10(16) over the spontaneous rate. The mechanistic basis for this rate acceleration was investigated by substitution of the active site residues Glu43, Arg35, and Arg87 with unnatural amino acid analogs. Two Glu43 mutants, one containing the nitro analog of glutamate and the other containing homoglutamate, retained high catalytic activity at pH 9.9, but were less active than the wild-type enzyme at lower pH values. The x-ray crystal structure of the homoglutamate mutant revealed that the carboxylate side chain of this residue occupies a position and orientation similar to that of Glu43 in the wild-type enzyme. The increase in steric bulk is accommodated by a backbone shift and altered torsion angles. The nitro and the homoglutamate mutants display similar pH versus rate profiles, which differ from that of the wild-type enzyme. Taken together, these studies suggest that Glu43 may not act as a general base, as previously thought, but may play a more complex structural role during catalysis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Judice, J K -- Gamble, T R -- Murphy, E C -- de Vos, A M -- Schultz, P G -- GM 14012-02S1/GM/NIGMS NIH HHS/ -- R01 GM49220/GM/NIGMS NIH HHS/ -- T32GM-08388/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1993 Sep 17;261(5128):1578-81.〈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/8103944" target="_blank"〉PubMed〈/a〉
    Keywords: 2-Aminoadipic Acid/chemistry ; Amino Acids/chemistry ; Aminobutyrates/chemistry ; Arginine/*chemistry ; Binding Sites ; Catalysis ; Glutamates/*chemistry ; Glutamic Acid ; Homocysteine/analogs & derivatives/chemistry ; Hydrogen Bonding ; Hydrogen-Ion Concentration ; Kinetics ; Micrococcal Nuclease/chemistry/genetics/*metabolism ; Mutation ; Plasmids ; X-Ray Diffraction
    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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    Three-dimensional structure of an oncogene protein: catalytic domain of human c-H-ras p21 (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-02-19
    Description: The crystal structure at 2.7 A resolution of the normal human c-H-ras oncogene protein lacking a flexible carboxyl-terminal 18 residue reveals that the protein consists of a six-stranded beta sheet, four alpha helices, and nine connecting loops. Four loops are involved in interactions with bound guanosine diphosphate: one with the phosphates, another with the ribose, and two with the guanine base. Most of the transforming proteins (in vivo and in vitro) have single amino acid substitutions at one of a few key positions in three of these four loops plus one additional loop. The biological functions of the remaining five loops and other exposed regions are at present unknown. However, one loop corresponds to the binding site for a neutralizing monoclonal antibody and another to a putative "effector region"; mutations in the latter region do not alter guanine nucleotide binding or guanosine triphosphatase activity but they do reduce the transforming activity of activated proteins. The data provide a structural basis for understanding the known biochemical properties of normal as well as activated ras oncogene proteins and indicate additional regions in the molecule that may possibly participate in other cellular functions.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉de Vos, A M -- Tong, L -- Milburn, M V -- Matias, P M -- Jancarik, J -- Noguchi, S -- Nishimura, S -- Miura, K -- Ohtsuka, E -- Kim, S H -- CA 45593/CA/NCI NIH HHS/ -- GM 29287/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1988 Feb 19;239(4842):888-93.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemistry, University of California, Berkely 94720.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2448879" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Antibodies, Monoclonal/immunology ; Binding Sites ; Catalysis ; Crystallization ; Epitopes/immunology ; Escherichia coli/genetics ; GTP Phosphohydrolases ; Guanosine Diphosphate/metabolism ; Guanosine Triphosphate/metabolism ; Neoplasms/genetics ; Phosphates/metabolism ; Protein Conformation ; Proto-Oncogene Proteins/genetics/immunology/*metabolism ; Proto-Oncogene Proteins p21(ras) ; Recombinant Proteins/metabolism ; X-Ray Diffraction
    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
    Electronic Resource
    Electronic Resource
    The calcium ion and membrane binding structure of the Gla domain of calcium-prothrombin fragment 1 (1992)
    s.l. : American Chemical Society
    Biochemistry 31 (1992), S. 2554-2566 
    Details
    ISSN: 1520-4995
    Source: ACS Legacy Archives
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/bi00124a016
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  • 10
    Electronic Resource
    Electronic Resource
    Hematopoietic Receptor Complexes (1996)
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Biochemistry 65 (1996), S. 609-634 
    Details
    ISSN: 0066-4154
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Chemistry and Pharmacology , Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1146/annurev.bi.65.070196.003141
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