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  • Crystallography, X-Ray  (9)
  • American Association for the Advancement of Science (AAAS)  (9)
  • American Geophysical Union (AGU)
  • 2000-2004  (5)
  • 1995-1999  (4)
Collection
Publisher
  • American Association for the Advancement of Science (AAAS)  (9)
  • American Geophysical Union (AGU)
Years
Year
  • 1
    Publication Date: 2003-05-06
    Description: We have used adenosine diphosphate analogs containing electron paramagnetic resonance (EPR) spin moieties and EPR spectroscopy to show that the nucleotide-binding site of kinesin-family motors closes when the motor.diphosphate complex binds to microtubules. Structural analyses demonstrate that a domain movement in the switch 1 region at the nucleotide site, homologous to domain movements in the switch 1 region in the G proteins [heterotrimeric guanine nucleotide-binding proteins], explains the EPR data. The switch movement primes the motor both for the free energy-yielding nucleotide hydrolysis reaction and for subsequent conformational changes that are crucial for the generation of force and directed motion along the microtubule.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Naber, Nariman -- Minehardt, Todd J -- Rice, Sarah -- Chen, Xiaoru -- Grammer, Jean -- Matuska, Marija -- Vale, Ronald D -- Kollman, Peter A -- Car, Roberto -- Yount, Ralph G -- Cooke, Roger -- Pate, Edward -- AR39643/AR/NIAMS NIH HHS/ -- AR42895/AR/NIAMS NIH HHS/ -- DK05915/DK/NIDDK NIH HHS/ -- GM29072/GM/NIGMS NIH HHS/ -- RR1081/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 2003 May 2;300(5620):798-801.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry, University of California, San Francisco, CA 94143, USA. naber@itsa.ucsf.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12730601" target="_blank"〉PubMed〈/a〉
    Keywords: Adenine Nucleotides/*metabolism ; Adenosine Diphosphate/analogs & derivatives/metabolism ; Adenosine Triphosphate/analogs & derivatives/metabolism ; Animals ; Binding Sites ; Computer Simulation ; Crystallography, X-Ray ; *Drosophila Proteins ; Drosophila melanogaster ; Electron Spin Resonance Spectroscopy ; Humans ; Hydrogen Bonding ; Hydrolysis ; Kinesin/*chemistry/*metabolism ; Microtubules/*metabolism ; Models, Molecular ; Molecular Motor Proteins/*chemistry/*metabolism ; Molecular Probes/metabolism ; Protein Conformation ; Spin Labels
    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
    Publication Date: 2002-04-20
    Description: Cadherins are transmembrane proteins that mediate adhesion between cells in the solid tissues of animals. Here we present the 3.1 angstrom resolution crystal structure of the whole, functional extracellular domain from C-cadherin, a representative "classical" cadherin. The structure suggests a molecular mechanism for adhesion between cells by classical cadherins, and it provides a new framework for understanding both cis (same cell) and trans (juxtaposed cell) cadherin interactions. The trans adhesive interface is a twofold symmetric interaction defined by a conserved tryptophan side chain at the membrane-distal end of a cadherin molecule from one cell, which inserts into a hydrophobic pocket at the membrane-distal end of a cadherin molecule from the opposing cell.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Boggon, Titus J -- Murray, John -- Chappuis-Flament, Sophie -- Wong, Ellen -- Gumbiner, Barry M -- Shapiro, Lawrence -- NCI-P30-CA-08784/CI/NCPDCID CDC HHS/ -- R01 GM062270/GM/NIGMS NIH HHS/ -- R01 GM52717/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2002 May 17;296(5571):1308-13. Epub 2002 Apr 18.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry, Columbia University College of Physicians and Surgeons, 630 West 168th Street, New York, NY 10032, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11964443" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Binding Sites ; CHO Cells ; Cadherins/*chemistry/genetics/metabolism ; *Cell Adhesion ; Cricetinae ; Crystallography, X-Ray ; Dimerization ; Glycosylation ; Hydrogen Bonding ; Models, Molecular ; Molecular Sequence Data ; Protein Structure, Tertiary ; Recombinant Fusion Proteins/chemistry ; Tryptophan/chemistry ; Xenopus Proteins
    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
    Publication Date: 1999-12-11
    Description: Tubby-like proteins (TULPs) are found in a broad range of multicellular organisms. In mammals, genetic mutation of tubby or other TULPs can result in one or more of three disease phenotypes: obesity (from which the name "tubby" is derived), retinal degeneration, and hearing loss. These disease phenotypes indicate a vital role for tubby proteins; however, no biochemical function has yet been ascribed to any member of this protein family. A structure-directed approach was employed to investigate the biological function of these proteins. The crystal structure of the core domain from mouse tubby was determined at a resolution of 1.9 angstroms. From primarily structural clues, experiments were devised, the results of which suggest that TULPs are a unique family of bipartite transcription factors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Boggon, T J -- Shan, W S -- Santagata, S -- Myers, S C -- Shapiro, L -- New York, N.Y. -- Science. 1999 Dec 10;286(5447):2119-25.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Structural Biology Program, Department of Physiology and Biophysics, Ruttenberg Cancer Center, Mount Sinai School of Medicine of New York University, New York, NY 10029, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10591637" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptor Proteins, Signal Transducing ; Alternative Splicing ; Amino Acid Sequence ; Animals ; Cell Line ; Cell Nucleus/chemistry ; Crystallography, X-Ray ; DNA/metabolism ; Eye Proteins/*chemistry/genetics/*metabolism ; Humans ; Models, Molecular ; Molecular Sequence Data ; Protein Conformation ; Protein Structure, Secondary ; Protein Structure, Tertiary ; Proteins/*chemistry/genetics/*metabolism ; Recombinant Proteins/chemistry/metabolism ; Sequence Alignment ; Transcription Factors/*chemistry/genetics/*metabolism ; Transcriptional Activation
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    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 4
    Publication Date: 2001-05-26
    Description: Dysfunction of the tubby protein results in maturity-onset obesity in mice. Tubby has been implicated as a transcription regulator, but details of the molecular mechanism underlying its function remain unclear. Here we show that tubby functions in signal transduction from heterotrimeric GTP-binding protein (G protein)-coupled receptors. Tubby localizes to the plasma membrane by binding phosphatidylinositol 4,5-bisphosphate through its carboxyl terminal "tubby domain." X-ray crystallography reveals the atomic-level basis of this interaction and implicates tubby domains as phosphorylated-phosphatidyl- inositol binding factors. Receptor-mediated activation of G protein alphaq (Galphaq) releases tubby from the plasma membrane through the action of phospholipase C-beta, triggering translocation of tubby to the cell nucleus. The localization of tubby-like protein 3 (TULP3) is similarly regulated. These data suggest that tubby proteins function as membrane-bound transcription regulators that translocate to the nucleus in response to phosphoinositide hydrolysis, providing a direct link between G-protein signaling and the regulation of gene expression.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Santagata, S -- Boggon, T J -- Baird, C L -- Gomez, C A -- Zhao, J -- Shan, W S -- Myszka, D G -- Shapiro, L -- New York, N.Y. -- Science. 2001 Jun 15;292(5524):2041-50. Epub 2001 May 24.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Ruttenberg Cancer Center, Structural Biology Program, Department of Physiology and Biophysics, Mount Sinai School of Medicine of New York University, 1425 Madison Avenue New York, NY 10029, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11375483" target="_blank"〉PubMed〈/a〉
    Keywords: Active Transport, Cell Nucleus ; Adaptor Proteins, Signal Transducing ; Amino Acid Sequence ; Animals ; Cell Membrane/metabolism ; Cell Nucleus/*metabolism ; Cells, Cultured ; Crystallography, X-Ray ; GTP-Binding Protein alpha Subunits, Gq-G11 ; Gene Expression Regulation ; Heterotrimeric GTP-Binding Proteins/*metabolism ; Humans ; Isoenzymes/*metabolism ; Membrane Lipids/metabolism ; Mice ; Models, Biological ; Molecular Sequence Data ; Nuclear Localization Signals ; Obesity/genetics/metabolism ; Phosphatidylinositol 4,5-Diphosphate/*metabolism ; Phosphatidylinositol Phosphates/metabolism ; Phospholipase C beta ; Phosphorylation ; Protein Structure, Tertiary ; Proteins/chemistry/genetics/*metabolism ; Receptor, Serotonin, 5-HT2C ; Receptors, Muscarinic/metabolism ; Receptors, Serotonin/metabolism ; Recombinant Fusion Proteins/metabolism ; *Signal Transduction ; Transcription Factors/chemistry/genetics/*metabolism ; Type C Phospholipases/*metabolism
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    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 5
    Publication Date: 2004-01-06
    Description: The crystal structure of biotin synthase from Escherichia coli in complex with S-adenosyl-L-methionine and dethiobiotin has been determined to 3.4 angstrom resolution. This structure addresses how "AdoMet radical" or "radical SAM" enzymes use Fe4S4 clusters and S-adenosyl-L-methionine to generate organic radicals. Biotin synthase catalyzes the radical-mediated insertion of sulfur into dethiobiotin to form biotin. The structure places the substrates between the Fe4S4 cluster, essential for radical generation, and the Fe2S2 cluster, postulated to be the source of sulfur, with both clusters in unprecedented coordination environments.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1456065/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1456065/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Berkovitch, Frederick -- Nicolet, Yvain -- Wan, Jason T -- Jarrett, Joseph T -- Drennan, Catherine L -- NSLS X25/NS/NINDS NIH HHS/ -- R01 GM059175/GM/NIGMS NIH HHS/ -- R01-GM59175/GM/NIGMS NIH HHS/ -- R01-GM65337/GM/NIGMS NIH HHS/ -- T32-GM07229/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2004 Jan 2;303(5654):76-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14704425" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Motifs ; Binding Sites ; Biotin/*analogs & derivatives/*chemistry/metabolism ; Catalysis ; Crystallization ; Crystallography, X-Ray ; Dimerization ; Escherichia coli/*enzymology ; Escherichia coli Proteins/*chemistry/*metabolism ; Hydrogen/chemistry ; Hydrogen Bonding ; Iron/chemistry ; Ligands ; Models, Molecular ; Protein Binding ; Protein Conformation ; Protein Folding ; Protein Structure, Secondary ; Protein Structure, Tertiary ; S-Adenosylmethionine/*chemistry/metabolism ; Sulfur/chemistry ; Sulfurtransferases/*chemistry/*metabolism
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    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 6
    Publication Date: 1998-12-16
    Description: Src homology 3 (SH3) and WW protein interaction domains bind specific proline-rich sequences. However, instead of recognizing critical prolines on the basis of side chain shape or rigidity, these domains broadly accepted amide N-substituted residues. Proline is apparently specifically selected in vivo, despite low complementarity, because it is the only endogenous N-substituted amino acid. This discriminatory mechanism explains how these domains achieve specific but low-affinity recognition, a property that is necessary for transient signaling interactions. The mechanism can be exploited: screening a series of ligands in which key prolines were replaced by nonnatural N-substituted residues yielded a ligand that selectively bound the Grb2 SH3 domain with 100 times greater affinity.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nguyen, J T -- Turck, C W -- Cohen, F E -- Zuckermann, R N -- Lim, W A -- New York, N.Y. -- Science. 1998 Dec 11;282(5396):2088-92.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cellular and Molecular Pharmacology, University of California, San Francisco, CA 94143, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9851931" target="_blank"〉PubMed〈/a〉
    Keywords: *Adaptor Proteins, Signal Transducing ; Amino Acid Sequence ; Amino Acid Substitution ; Animals ; *Caenorhabditis elegans Proteins ; Carrier Proteins/chemistry/metabolism ; Crystallization ; Crystallography, X-Ray ; GRB2 Adaptor Protein ; Helminth Proteins/chemistry/metabolism ; Humans ; Ligands ; Models, Molecular ; Molecular Sequence Data ; Oligopeptides/chemistry/*metabolism ; Phosphoproteins/chemistry/metabolism ; Proline/chemistry/*metabolism ; Protein Engineering ; Proteins/chemistry/metabolism ; Proto-Oncogene Proteins/chemistry/metabolism ; Proto-Oncogene Proteins c-crk ; Sequence Homology, Amino Acid ; *src Homology Domains
    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
    Publication Date: 1998-04-16
    Description: A highly specific Diels-Alder protein catalyst was made by manipulating the antibody repertoire of the immune system. The catalytic antibody 13G5 catalyzes a disfavored exo Diels-Alder transformation in a reaction for which there is no natural enzyme counterpart and that yields a single regioisomer in high enantiomeric excess. The crystal structure of the antibody Fab in complex with a ferrocenyl inhibitor containing the essential haptenic core that elicited 13G5 was determined at 1.95 angstrom resolution. Three key antibody residues appear to be responsible for the observed catalysis and product control. Tyrosine-L36 acts as a Lewis acid activating the dienophile for nucleophilic attack, and asparagine-L91 and aspartic acid-H50 form hydrogen bonds to the carboxylate side chain that substitutes for the carbamate diene substrate. This hydrogen-bonding scheme leads to rate acceleration and also pronounced stereoselectivity. Docking experiments with the four possible ortho transition states of the reaction explain the specific exo effect and suggest that the (3R,4R)-exo stereoisomer is the preferred product.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Heine, A -- Stura, E A -- Yli-Kauhaluoma, J T -- Gao, C -- Deng, Q -- Beno, B R -- Houk, K N -- Janda, K D -- Wilson, I A -- CA27489/CA/NCI NIH HHS/ -- GM-43858/GM/NIGMS NIH HHS/ -- P01 CA27489/CA/NCI NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1998 Mar 20;279(5358):1934-40.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉The Skaggs Institute of Chemical Biology, Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9506943" target="_blank"〉PubMed〈/a〉
    Keywords: Antibodies, Catalytic/*chemistry/immunology/metabolism ; Catalysis ; Chemistry, Organic ; Crystallography, X-Ray ; Ferrous Compounds/*chemistry/immunology/metabolism ; Haptens/chemistry/immunology ; Hydrogen Bonding ; Hydrogen-Ion Concentration ; Immunoglobulin Fab Fragments/chemistry ; Models, Molecular ; Organic Chemistry Phenomena ; Stereoisomerism ; Thermodynamics
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 8
    Publication Date: 2004-08-07
    Description: Vesicle fusion involves vesicle tethering, docking, and membrane merger. We show that mitofusin, an integral mitochondrial membrane protein, is required on adjacent mitochondria to mediate fusion, which indicates that mitofusin complexes act in trans (that is, between adjacent mitochondria). A heptad repeat region (HR2) mediates mitofusin oligomerization by assembling a dimeric, antiparallel coiled coil. The transmembrane segments are located at opposite ends of the 95 angstrom coiled coil and provide a mechanism for organelle tethering. Consistent with this proposal, truncated mitofusin, in an HR2-dependent manner, causes mitochondria to become apposed with a uniform gap. Our results suggest that HR2 functions as a mitochondrial tether before fusion.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Koshiba, Takumi -- Detmer, Scott A -- Kaiser, Jens T -- Chen, Hsiuchen -- McCaffery, J Michael -- Chan, David C -- R01 GM62967/GM/NIGMS NIH HHS/ -- S10 RR019409-01/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 2004 Aug 6;305(5685):858-62.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Biology, California Institute of Technology, 1200 East California Boulevard, MC114-96, Pasadena, CA 91125, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15297672" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Amino Acid Substitution ; Animals ; Cell Line ; Crystallography, X-Ray ; Dimerization ; GTP Phosphohydrolases/*chemistry/*metabolism ; Humans ; Hybrid Cells ; Hydrophobic and Hydrophilic Interactions ; Intracellular Membranes/physiology/ultrastructure ; Membrane Fusion ; Mice ; Mitochondria/*metabolism/ultrastructure ; Models, Molecular ; Molecular Sequence Data ; Mutation ; Protein Structure, Secondary ; Protein Structure, Tertiary
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 9
    Publication Date: 1995-11-10
    Description: Polychlorinated biphenyls (PCBs) typify a class of stable aromatic pollutants that are targeted by bioremediation strategies. In the aerobic degradation of biphenyl by bacteria, the key step of ring cleavage is catalyzed by an Fe(II)-dependent extradiol dioxygenase. The crystal structure of 2,3-dihydroxybiphenyl 1,2-dioxygenase from a PCB-degrading strain of Pseudomonas cepacia has been determined at 1.9 angstrom resolution. The monomer comprises amino- and carboxyl-terminal domains. Structural homology between and within the domains reveals evolutionary relationships within the extradiol dioxygenase family. The iron atom has five ligands in square pyramidal geometry: one glutamate and two histidine side chains, and two water molecules.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Han, S -- Eltis, L D -- Timmis, K N -- Muchmore, S W -- Bolin, J T -- GM 52831/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1995 Nov 10;270(5238):976-80.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biological Sciences, Purdue University, West Lafayette, IN 47907-1392, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7481800" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Binding Sites ; Biodegradation, Environmental ; Crystallography, X-Ray ; *Dioxygenases ; Evolution, Molecular ; Ferrous Compounds/chemistry/metabolism ; Hydrogen Bonding ; Ligands ; Models, Molecular ; Molecular Sequence Data ; Oxygen/chemistry/metabolism ; Oxygenases/*chemistry/metabolism ; Polychlorinated Biphenyls/metabolism ; *Protein Conformation ; Protein Structure, Secondary ; Pseudomonas/*enzymology ; Sequence Alignment
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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