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  • 1
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    PTEN, a putative protein tyrosine phosphatase gene mutated in human brain, breast, and prostate cancer (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-03-28
    Description: Mapping of homozygous deletions on human chromosome 10q23 has led to the isolation of a candidate tumor suppressor gene, PTEN, that appears to be mutated at considerable frequency in human cancers. In preliminary screens, mutations of PTEN were detected in 31% (13/42) of glioblastoma cell lines and xenografts, 100% (4/4) of prostate cancer cell lines, 6% (4/65) of breast cancer cell lines and xenografts, and 17% (3/18) of primary glioblastomas. The predicted PTEN product has a protein tyrosine phosphatase domain and extensive homology to tensin, a protein that interacts with actin filaments at focal adhesions. These homologies suggest that PTEN may suppress tumor cell growth by antagonizing protein tyrosine kinases and may regulate tumor cell invasion and metastasis through interactions at focal adhesions.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Li, J -- Yen, C -- Liaw, D -- Podsypanina, K -- Bose, S -- Wang, S I -- Puc, J -- Miliaresis, C -- Rodgers, L -- McCombie, R -- Bigner, S H -- Giovanella, B C -- Ittmann, M -- Tycko, B -- Hibshoosh, H -- Wigler, M H -- Parsons, R -- 5R35 CA39829/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1997 Mar 28;275(5308):1943-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pathology, College of Physicians & Surgeons, Columbia University, 630 West 168 Street, New York, NY 10032, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9072974" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Brain Neoplasms/genetics ; Breast Neoplasms/genetics ; Chromosome Mapping ; *Chromosomes, Human, Pair 10 ; Female ; Frameshift Mutation ; *Genes, Tumor Suppressor ; Glioblastoma/genetics ; Humans ; Male ; Microfilament Proteins/chemistry ; Molecular Sequence Data ; *Mutation ; Neoplasm Transplantation ; Neoplasms/*genetics ; PTEN Phosphohydrolase ; *Phosphoric Monoester Hydrolases ; Phosphotyrosine/metabolism ; Prostatic Neoplasms/genetics ; Protein Tyrosine Phosphatases/chemistry/*genetics/physiology ; Protein-Tyrosine Kinases/antagonists & inhibitors ; Sequence Deletion ; Sequence Homology, Amino Acid ; Transplantation, Heterologous ; Tumor Cells, Cultured ; *Tumor Suppressor Proteins
    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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    Chaperone function of Hsp90-associated proteins (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-12-06
    Description: The Hsp90 heat shock protein of eukaryotic cells regulates the activity of proteins involved in signal transduction pathways and may direct intracellular protein folding in general. Hsp90 performs at least part of its function in a complex with a specific set of partner proteins that include members of the prolyl isomerase family. The properties of the major components of the Hsp90 complex were examined through the use of in vitro protein folding assays. Two of the components, FKBP52 and p23, functioned as mechanistically distinct molecular chaperones. These results suggest the existence of a super-chaperone complex in the cytosol of eukaryotic cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bose, S -- Weikl, T -- Bugl, H -- Buchner, J -- New York, N.Y. -- Science. 1996 Dec 6;274(5293):1715-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institut fur Biophysik und Physikalische Biochemie, Universitat Regensburg, 93040 Regensburg, Germany. johannes.buchner@biologie.uni-regensburg.de〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8939863" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Isomerases/antagonists & inhibitors/metabolism ; Carrier Proteins/antagonists & inhibitors/metabolism/pharmacology/*physiology ; Citrate (si)-Synthase/*chemistry ; DNA-Binding Proteins/metabolism/pharmacology/*physiology ; Drosophila Proteins ; Enzyme Inhibitors/pharmacology ; HSP90 Heat-Shock Proteins/metabolism/*physiology ; Heat-Shock Proteins/metabolism/pharmacology/*physiology ; Intramolecular Oxidoreductases ; Janus Kinases ; Molecular Chaperones/metabolism/pharmacology/*physiology ; Peptidylprolyl Isomerase ; Phosphoproteins/metabolism/pharmacology/*physiology ; Polyenes/pharmacology ; Protein Denaturation ; *Protein Folding ; Protein-Tyrosine Kinases/metabolism/pharmacology ; Recombinant Proteins/metabolism ; Sirolimus ; Tacrolimus Binding Proteins ; Temperature ; Transcription Factors
    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)
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
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