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  • 1
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    Atomic structure of PDE4: insights into phosphodiesterase mechanism and specificity (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2000-06-10
    Description: Cyclic nucleotides are second messengers that are essential in vision, muscle contraction, neurotransmission, exocytosis, cell growth, and differentiation. These molecules are degraded by a family of enzymes known as phosphodiesterases, which serve a critical function by regulating the intracellular concentration of cyclic nucleotides. We have determined the three-dimensional structure of the catalytic domain of phosphodiesterase 4B2B to 1.77 angstrom resolution. The active site has been identified and contains a cluster of two metal atoms. The structure suggests the mechanism of action and basis for specificity and will provide a framework for structure-assisted drug design for members of the phosphodiesterase family.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Xu, R X -- Hassell, A M -- Vanderwall, D -- Lambert, M H -- Holmes, W D -- Luther, M A -- Rocque, W J -- Milburn, M V -- Zhao, Y -- Ke, H -- Nolte, R T -- AI33072/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2000 Jun 9;288(5472):1822-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Structural Chemistry, Department of Molecular Sciences, Glaxo Wellcome Research and Development, Research Triangle Park, NC 27709, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10846163" target="_blank"〉PubMed〈/a〉
    Keywords: 3',5'-Cyclic-AMP Phosphodiesterases/*chemistry/*metabolism ; Binding Sites ; Catalytic Domain ; Crystallization ; Crystallography, X-Ray ; Cyclic AMP/chemistry/*metabolism ; Cyclic GMP/chemistry/metabolism ; Cyclic Nucleotide Phosphodiesterases, Type 4 ; Hydrogen Bonding ; Hydrolysis ; Metals/metabolism ; Models, Molecular ; Protein Conformation ; Protein Folding ; Protein Structure, Secondary ; Substrate Specificity
    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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    Prevention of chemotherapy-induced alopecia in rats by CDK inhibitors (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-01-06
    Description: Most traditional cytotoxic anticancer agents ablate the rapidly dividing epithelium of the hair follicle and induce alopecia (hair loss). Inhibition of cyclin-dependent kinase 2 (CDK2), a positive regulator of eukaryotic cell cycle progression, may represent a therapeutic strategy for prevention of chemotherapy-induced alopecia (CIA) by arresting the cell cycle and reducing the sensitivity of the epithelium to many cell cycle-active antitumor agents. Potent small-molecule inhibitors of CDK2 were developed using structure-based methods. Topical application of these compounds in a neonatal rat model of CIA reduced hair loss at the site of application in 33 to 50% of the animals. Thus, inhibition of CDK2 represents a potentially useful approach for the prevention of CIA in cancer patients.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Davis, S T -- Benson, B G -- Bramson, H N -- Chapman, D E -- Dickerson, S H -- Dold, K M -- Eberwein, D J -- Edelstein, M -- Frye, S V -- Gampe Jr, R T -- Griffin, R J -- Harris, P A -- Hassell, A M -- Holmes, W D -- Hunter, R N -- Knick, V B -- Lackey, K -- Lovejoy, B -- Luzzio, M J -- Murray, D -- Parker, P -- Rocque, W J -- Shewchuk, L -- Veal, J M -- Walker, D H -- Kuyper, L F -- New York, N.Y. -- Science. 2001 Jan 5;291(5501):134-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cancer Biology, Glaxo Wellcome Research and Development, Research Triangle Park, NC 27709, USA. std41085@glaxowellcome.com〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11141566" target="_blank"〉PubMed〈/a〉
    Keywords: Alopecia/*chemically induced/*prevention & control ; Animals ; Animals, Newborn ; Antineoplastic Agents/*toxicity ; Antineoplastic Combined Chemotherapy Protocols/toxicity ; Apoptosis/drug effects ; *CDC2-CDC28 Kinases ; Cell Cycle/drug effects ; Cell Line ; Cyclin-Dependent Kinase 2 ; Cyclin-Dependent Kinases/*antagonists & inhibitors/metabolism ; Cyclophosphamide/toxicity ; Cytoprotection/drug effects ; DNA/biosynthesis ; Doxorubicin/toxicity ; Drug Design ; Enzyme Inhibitors/chemical synthesis/chemistry/*pharmacology ; Epithelium/drug effects ; Etoposide/toxicity ; Hair Follicle/cytology/*drug effects ; Humans ; Indoles/chemical synthesis/chemistry/*pharmacology ; Mice ; Mice, SCID ; Phosphorylation ; Protein-Serine-Threonine Kinases/*antagonists & inhibitors/metabolism ; Rats ; Retinoblastoma Protein/metabolism ; Scalp/transplantation ; Sulfonamides/chemical synthesis/chemistry/*pharmacology ; Transplantation, Heterologous
    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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    Retraction (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-01-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Davis, Stephen T -- Benson, Bill G -- Bramson, H Neal -- Chapman, Dennis E -- Dickerson, Scott H -- Dold, Karen M -- Eberwein, Derek J -- Edelstein, Mark -- Frye, Stephen V -- Gampe, Robert T Jr -- Grifffen, Robert J -- Harris, Philip A -- Hassell, Anne M -- Holmes, William D -- Hunter, Robert N -- Knick, Victoria B -- Lackey, Karen -- Lovejoy, Brett -- Luzzio, Michael J -- Murray, Doris -- Parker, Patricia -- Rocque, Warren J -- Shewchuk-Chapman, Lisa -- Veal, James M -- Walker, Duncan H -- Kuyper, Lee F -- New York, N.Y. -- Science. 2002 Dec 20;298(5602):2327.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Trans Tech Pharmaceuticals, 4170 Mendenhall Oaks Parkway, High Point, NC 27265, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12526115" target="_blank"〉PubMed〈/a〉
    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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