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1jd2
From Proteopedia
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[[Image:1jd2.gif|left|200px]] | [[Image:1jd2.gif|left|200px]] | ||
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'''Crystal Structure of the yeast 20S Proteasome:TMC-95A complex: A non-covalent Proteasome Inhibitor''' | '''Crystal Structure of the yeast 20S Proteasome:TMC-95A complex: A non-covalent Proteasome Inhibitor''' | ||
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[[Category: Koguchi, Y.]] | [[Category: Koguchi, Y.]] | ||
[[Category: Kohno, J.]] | [[Category: Kohno, J.]] | ||
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| - | [[Category: | + | [[Category: Proteasome:inhibitor complex]] |
| - | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 21:04:33 2008'' | |
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Revision as of 18:04, 2 May 2008
Crystal Structure of the yeast 20S Proteasome:TMC-95A complex: A non-covalent Proteasome Inhibitor
Overview
The 20 S proteasome core particle (CP), a multicatalytic protease, is involved in a variety of biologically important processes, including immune response, cell-cycle control, metabolic adaptation, stress response and cell differentiation. Therefore, selective inhibition of the CP will be one possible way to influence these essential pathways. Recently, a new class of specific proteasome inhibitors, TMC-95s, was investigated and we now present a biochemical and crystallographic characterisation of the yeast proteasome core particle in complex with the natural product TMC-95A. This unusual heterocyclic compound specifically blocks the active sites of CPs non-covalently, without modifying the nucleophilic Thr1 residue. The inhibitor is bound to the CP by specific hydrogen bonds with the main-chain atoms of the protein. Analysis of the crystal structure of the complex has revealed which portions of TMC-95s are essential for binding to the proteasome. This will form the basis for the development of synthetic selective proteasome inhibitors as promising candidates for anti-tumoral or anti-inflammatory drugs.
About this Structure
1JD2 is a Protein complex structure of sequences from Saccharomyces cerevisiae. Full crystallographic information is available from OCA.
Reference
Crystal structure of the 20 S proteasome:TMC-95A complex: a non-covalent proteasome inhibitor., Groll M, Koguchi Y, Huber R, Kohno J, J Mol Biol. 2001 Aug 17;311(3):543-8. PMID:11493007 Page seeded by OCA on Fri May 2 21:04:33 2008
