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  • 1
    Publication Date: 1999-07-20
    Description: A vertebrate securin (vSecurin) was identified on the basis of its biochemical analogy to the Pds1p protein of budding yeast and the Cut2p protein of fission yeast. The vSecurin protein bound to a vertebrate homolog of yeast separins Esp1p and Cut1p and was degraded by proteolysis mediated by an anaphase-promoting complex in a manner dependent on a destruction motif. Furthermore, expression of a stable Xenopus securin mutant protein blocked sister-chromatid separation but did not block the embryonic cell cycle. The vSecurin proteins share extensive sequence similarity with each other but show no sequence similarity to either of their yeast counterparts. Human securin is identical to the product of the gene called pituitary tumor-transforming gene (PTTG), which is overexpressed in some tumors and exhibits transforming activity in NIH 3T3 cells. The oncogenic nature of increased expression of vSecurin may result from chromosome gain or loss, produced by errors in chromatid separation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zou, H -- McGarry, T J -- Bernal, T -- Kirschner, M W -- GM26875/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1999 Jul 16;285(5426):418-22.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cell Biology, Harvard Medical School, 240 Longwood Avenue, Boston, MA 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10411507" target="_blank"〉PubMed〈/a〉
    Keywords: 3T3 Cells ; Amino Acid Sequence ; *Anaphase ; Anaphase-Promoting Complex-Cyclosome ; Animals ; CDC2 Protein Kinase/metabolism ; Cell Cycle Proteins/chemistry/metabolism ; *Cell Transformation, Neoplastic ; Chromatids/*physiology ; Conserved Sequence ; Cyclin B/metabolism ; Cyclin B1 ; *Endopeptidases ; Fungal Proteins/chemistry/metabolism ; HeLa Cells ; Humans ; Ligases/metabolism ; Mice ; Molecular Sequence Data ; Mutagenesis, Site-Directed ; Neoplasm Proteins/chemistry/genetics/*metabolism ; Neoplasms/etiology ; Nuclear Proteins/chemistry/metabolism ; Oncogene Proteins/chemistry/genetics/*metabolism ; Oncogenes ; *Saccharomyces cerevisiae Proteins ; *Schizosaccharomyces pombe Proteins ; Securin ; Separase ; Spindle Apparatus/metabolism ; *Ubiquitin-Protein Ligase Complexes ; Ubiquitin-Protein Ligases ; Xenopus
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  • 2
    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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  • 3
    Publication Date: 1999-11-24
    Description: The human adenovirus serotype 5 (Ad5) is used widely for applications in human gene therapy. Cellular attachment of Ad5 is mediated by binding of the carboxyl-terminal knob of its fiber coat protein to the Coxsackie adenovirus receptor (CAR) protein. However, Ad5 binding to CAR hampers the development of adenovirus vectors capable of specifically targeting (diseased) tissues or organs. Through sequence analysis and mutagenesis, a conserved receptor-binding region was identified on the side of three divergent CAR-binding knobs. The feasibility of simultaneous CAR ablation and redirection of an adenovirus to a new receptor is demonstrated.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Roelvink, P W -- Mi Lee, G -- Einfeld, D A -- Kovesdi, I -- Wickham, T J -- New York, N.Y. -- Science. 1999 Nov 19;286(5444):1568-71.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Research and Development, GenVec Inc., 65 West Watkins Mill Road, Gaithersburg, MD 20879, USA. genecloner@genvec.com〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10567265" target="_blank"〉PubMed〈/a〉
    Keywords: Adenoviruses, Human/*chemistry/metabolism ; Amino Acid Sequence ; Binding Sites ; Capsid/*chemistry/genetics/*metabolism ; *Capsid Proteins ; Cell Line ; Conserved Sequence ; Coxsackie and Adenovirus Receptor-Like Membrane Protein ; Genetic Vectors ; Humans ; Models, Molecular ; Mutagenesis, Site-Directed ; Point Mutation ; Protein Conformation ; Protein Structure, Secondary ; Receptors, Virus/*metabolism ; Sequence Deletion ; Transfection ; Tumor Cells, Cultured
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  • 4
    Publication Date: 1997-07-04
    Description: Angiogenesis is thought to depend on a precise balance of positive and negative regulation. Angiopoietin-1 (Ang1) is an angiogenic factor that signals through the endothelial cell-specific Tie2 receptor tyrosine kinase. Like vascular endothelial growth factor, Ang1 is essential for normal vascular development in the mouse. An Ang1 relative, termed angiopoietin-2 (Ang2), was identified by homology screening and shown to be a naturally occurring antagonist for Ang1 and Tie2. Transgenic overexpression of Ang2 disrupts blood vessel formation in the mouse embryo. In adult mice and humans, Ang2 is expressed only at sites of vascular remodeling. Natural antagonists for vertebrate receptor tyrosine kinases are atypical; thus, the discovery of a negative regulator acting on Tie2 emphasizes the need for exquisite regulation of this angiogenic receptor system.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Maisonpierre, P C -- Suri, C -- Jones, P F -- Bartunkova, S -- Wiegand, S J -- Radziejewski, C -- Compton, D -- McClain, J -- Aldrich, T H -- Papadopoulos, N -- Daly, T J -- Davis, S -- Sato, T N -- Yancopoulos, G D -- New York, N.Y. -- Science. 1997 Jul 4;277(5322):55-60.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Regeneron Pharmaceuticals Inc., 777 Old Saw Mill River Road, Tarrytown, NY 10591, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9204896" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Angiopoietin-1 ; Angiopoietin-2 ; Animals ; Blood Vessels/embryology/*metabolism ; Cells, Cultured ; Cloning, Molecular ; Embryo, Mammalian/metabolism ; Endothelial Growth Factors/genetics/metabolism ; Endothelium, Vascular/*cytology/metabolism ; Female ; Humans ; Ligands ; Lymphokines/genetics/metabolism ; Membrane Glycoproteins/antagonists & inhibitors/metabolism ; Mice ; Mice, Transgenic ; Molecular Sequence Data ; *Neovascularization, Physiologic ; Phosphorylation ; Proteins/chemistry/*metabolism ; Rats ; Rats, Sprague-Dawley ; Receptor Protein-Tyrosine Kinases/*antagonists & inhibitors/metabolism ; Receptor, TIE-2 ; Recombinant Fusion Proteins/metabolism ; Signal Transduction ; Vascular Endothelial Growth Factor A ; Vascular Endothelial Growth Factors
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  • 5
    Publication Date: 1998-02-07
    Description: Benign familial neonatal convulsions (BFNC) is an autosomal dominant epilepsy of infancy, with loci mapped to human chromosomes 20q13.3 and 8q24. By positional cloning, a potassium channel gene (KCNQ2) located on 20q13.3 was isolated and found to be expressed in brain. Expression of KCNQ2 in frog (Xenopus laevis) oocytes led to potassium-selective currents that activated slowly with depolarization. In a large pedigree with BFNC, a five-base pair insertion would delete more than 300 amino acids from the KCNQ2 carboxyl terminus. Expression of the mutant channel did not yield measurable currents. Thus, impairment of potassium-dependent repolarization is likely to cause this age-specific epileptic syndrome.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Biervert, C -- Schroeder, B C -- Kubisch, C -- Berkovic, S F -- Propping, P -- Jentsch, T J -- Steinlein, O K -- New York, N.Y. -- Science. 1998 Jan 16;279(5349):403-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute for Human Genetics, University of Bonn, Bonn, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9430594" target="_blank"〉PubMed〈/a〉
    Keywords: Action Potentials ; Amino Acid Sequence ; Animals ; Brain/metabolism ; Chromosome Mapping ; Chromosomes, Human, Pair 20 ; Cloning, Molecular ; Epilepsy/*genetics/metabolism ; Female ; Frameshift Mutation ; Humans ; Infant, Newborn ; KCNQ2 Potassium Channel ; Male ; Molecular Sequence Data ; Mutagenesis, Insertional ; Oocytes/metabolism ; Open Reading Frames ; Pedigree ; Potassium/metabolism ; Potassium Channels/chemistry/*genetics/metabolism ; *Potassium Channels, Voltage-Gated ; Xenopus laevis
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  • 6
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1997-06-20
    Description: The plant hormone auxin regulates plant physiology by modulating the interaction of transcription factors with auxin response elements (AuxREs) of the affected genes. A transcription factor, Auxin Response Factor 1 (ARF1), that binds to the sequence TGTCTC in AuxREs was cloned from Arabidopsis by using a yeast one-hybrid system. ARF1 has an amino-terminal DNA-binding domain related to the carboxyl terminus of the maize transactivator Viviparous-1. Sequence requirements for ARF1 binding in vitro are identical to those that confer auxin responsiveness in vivo. The carboxyl terminus of ARF1 contains two motifs found in the Aux/IAA class of proteins and appears to mediate protein-protein interactions.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ulmasov, T -- Hagen, G -- Guilfoyle, T J -- New York, N.Y. -- Science. 1997 Jun 20;276(5320):1865-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry, University of Missouri, 117 Schweitzer Hall, Columbia, MO 65211, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9188533" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Arabidopsis/genetics ; Arabidopsis Proteins ; Base Sequence ; Binding Sites ; Cloning, Molecular ; DNA, Plant/genetics/*metabolism ; DNA-Binding Proteins/chemistry/genetics/*metabolism ; Genes, Plant ; Indoleacetic Acids/*pharmacology ; Molecular Sequence Data ; Mutation ; Plant Proteins ; *Promoter Regions, Genetic ; *Repetitive Sequences, Nucleic Acid ; Transcription Factors/chemistry/genetics/*metabolism
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  • 7
    Publication Date: 1995-03-03
    Description: Many members of the cytokine receptor superfamily initiate intracellular signaling by activating members of the Jak family of tyrosine kinases. Activation of the same Jaks by multiple cytokines raises the question of how these cytokines activate distinct intracellular signaling pathways. Selection of particular substrates--the transcriptional activator Stat3 and protein tyrosine phosphatase PTP1D--that characterize responses to the ciliary neurotrophic factor-interleukin-6 cytokine family depended not on which Jak was activated, but was instead determined by specific tyrosine-based motifs in the receptor components--gp130 and LIFR--shared by these cytokines. Further, these tyrosine-based motifs were modular, because addition of a Stat3-specifying motif to another cytokine receptor, that for erythropoietin, caused it to activate Stat3 in a ligand-dependent fashion.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stahl, N -- Farruggella, T J -- Boulton, T G -- Zhong, Z -- Darnell, J E Jr -- Yancopoulos, G D -- New York, N.Y. -- Science. 1995 Mar 3;267(5202):1349-53.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Regeneron Pharmaceuticals, Inc., Tarrytown, NY 10591.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7871433" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; *Antigens, CD ; Cell Line ; Cytokine Receptor gp130 ; DNA-Binding Proteins/*metabolism ; *Growth Inhibitors ; Interleukin-6/pharmacology ; Intracellular Signaling Peptides and Proteins ; Leukemia Inhibitory Factor ; *Lymphokines ; Membrane Glycoproteins/chemistry/*metabolism ; Molecular Sequence Data ; Phosphorylation ; Point Mutation ; Protein Tyrosine Phosphatase, Non-Receptor Type 11 ; Protein Tyrosine Phosphatase, Non-Receptor Type 6 ; Protein Tyrosine Phosphatases/metabolism ; Protein-Tyrosine Kinases/*metabolism ; Receptors, Cytokine/chemistry/*metabolism ; Receptors, OSM-LIF ; Recombinant Fusion Proteins/metabolism ; STAT3 Transcription Factor ; *Signal Transduction ; Trans-Activators/*metabolism ; Tyrosine/metabolism
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  • 8
    Publication Date: 1996-10-25
    Description: The human genome is thought to harbor 50,000 to 100,000 genes, of which about half have been sampled to date in the form of expressed sequence tags. An international consortium was organized to develop and map gene-based sequence tagged site markers on a set of two radiation hybrid panels and a yeast artificial chromosome library. More than 16,000 human genes have been mapped relative to a framework map that contains about 1000 polymorphic genetic markers. The gene map unifies the existing genetic and physical maps with the nucleotide and protein sequence databases in a fashion that should speed the discovery of genes underlying inherited human disease. The integrated resource is available through a site on the World Wide Web at http://www.ncbi.nlm.nih.gov/SCIENCE96/.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Schuler, G D -- Boguski, M S -- Stewart, E A -- Stein, L D -- Gyapay, G -- Rice, K -- White, R E -- Rodriguez-Tome, P -- Aggarwal, A -- Bajorek, E -- Bentolila, S -- Birren, B B -- Butler, A -- Castle, A B -- Chiannilkulchai, N -- Chu, A -- Clee, C -- Cowles, S -- Day, P J -- Dibling, T -- Drouot, N -- Dunham, I -- Duprat, S -- East, C -- Edwards, C -- Fan, J B -- Fang, N -- Fizames, C -- Garrett, C -- Green, L -- Hadley, D -- Harris, M -- Harrison, P -- Brady, S -- Hicks, A -- Holloway, E -- Hui, L -- Hussain, S -- Louis-Dit-Sully, C -- Ma, J -- MacGilvery, A -- Mader, C -- Maratukulam, A -- Matise, T C -- McKusick, K B -- Morissette, J -- Mungall, A -- Muselet, D -- Nusbaum, H C -- Page, D C -- Peck, A -- Perkins, S -- Piercy, M -- Qin, F -- Quackenbush, J -- Ranby, S -- Reif, T -- Rozen, S -- Sanders, C -- She, X -- Silva, J -- Slonim, D K -- Soderlund, C -- Sun, W L -- Tabar, P -- Thangarajah, T -- Vega-Czarny, N -- Vollrath, D -- Voyticky, S -- Wilmer, T -- Wu, X -- Adams, M D -- Auffray, C -- Walter, N A -- Brandon, R -- Dehejia, A -- Goodfellow, P N -- Houlgatte, R -- Hudson, J R Jr -- Ide, S E -- Iorio, K R -- Lee, W Y -- Seki, N -- Nagase, T -- Ishikawa, K -- Nomura, N -- Phillips, C -- Polymeropoulos, M H -- Sandusky, M -- Schmitt, K -- Berry, R -- Swanson, K -- Torres, R -- Venter, J C -- Sikela, J M -- Beckmann, J S -- Weissenbach, J -- Myers, R M -- Cox, D R -- James, M R -- Bentley, D -- Deloukas, P -- Lander, E S -- Hudson, T J -- HG00098/HG/NHGRI NIH HHS/ -- HG00206/HG/NHGRI NIH HHS/ -- HG00835/HG/NHGRI NIH HHS/ -- Wellcome Trust/United Kingdom -- etc. -- New York, N.Y. -- Science. 1996 Oct 25;274(5287):540-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉National Center for Biotechnology Information, National Library of Medicine, National Institutes of Health, 8600 Rockville Pike, Bethesda, MD 20894, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8849440" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Cell Line ; *Chromosome Mapping ; Chromosomes, Artificial, Yeast ; Computer Communication Networks ; DNA, Complementary/genetics ; Databases, Factual ; Gene Expression ; Genetic Markers ; *Genome, Human ; *Human Genome Project ; Humans ; Multigene Family ; RNA, Messenger/genetics ; Sequence Homology, Nucleic Acid ; Sequence Tagged Sites
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  • 9
    Publication Date: 1995-05-12
    Description: A gene from human chromosome 11p11.2 was isolated and was shown to suppress metastasis when introduced into rat AT6.1 prostate cancer cells. Expression of this gene, designated KAI1, was reduced in human cell lines derived from metastatic prostate tumors. KAI1 specifies a protein of 267 amino acids, with four hydrophobic and presumably transmembrane domains and one large extracellular hydrophilic domain with three potential N-glycosylation sites. KAI1 is evolutionarily conserved, is expressed in many human tissues, and encodes a member of a structurally distinct family of leukocyte surface glycoproteins. Decreased expression of this gene may be involved in the malignant progression of prostate and other cancers.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dong, J T -- Lamb, P W -- Rinker-Schaeffer, C W -- Vukanovic, J -- Ichikawa, T -- Isaacs, J T -- Barrett, J C -- CA 58236/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1995 May 12;268(5212):884-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Molecular Carcinogenesis, National Institute of Environmental Health Sciences, National Institute of Health, Research Triangle Park, NC 27709, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7754374" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Antigens, CD/chemistry/*genetics/physiology ; Antigens, CD82 ; Base Sequence ; Biological Evolution ; *Chromosomes, Human, Pair 11 ; Gene Expression ; *Genes, Tumor Suppressor ; Humans ; Male ; Membrane Glycoproteins/chemistry/*genetics/physiology ; Mice ; Mice, SCID ; Molecular Sequence Data ; Neoplasm Metastasis/*genetics ; Prostatic Neoplasms/*genetics/pathology ; *Proto-Oncogene Proteins ; Rats ; Transfection ; Tumor Cells, Cultured
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  • 10
    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
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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