1s2h

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[[Image:1s2h.png|left|200px]]
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==The Mad2 spindle checkpoint protein possesses two distinct natively folded states==
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<StructureSection load='1s2h' size='340' side='right' caption='[[1s2h]], [[NMR_Ensembles_of_Models | 1 NMR models]]' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[1s2h]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1S2H OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1S2H FirstGlance]. <br>
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</td></tr><tr><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1duj|1duj]], [[1klq|1klq]]</td></tr>
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<tr><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">MAD2L1, MAD2 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens])</td></tr>
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<tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1s2h FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1s2h OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1s2h RCSB], [http://www.ebi.ac.uk/pdbsum/1s2h PDBsum]</span></td></tr>
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<table>
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== Evolutionary Conservation ==
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[[Image:Consurf_key_small.gif|200px|right]]
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Check<jmol>
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<jmolCheckbox>
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<scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/s2/1s2h_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
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<text>to colour the structure by Evolutionary Conservation</text>
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</jmolCheckbox>
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</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/chain_selection.php?pdb_ID=2ata ConSurf].
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<div style="clear:both"></div>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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The spindle checkpoint delays chromosome segregation in response to misaligned sister chromatids during mitosis, thus ensuring the fidelity of chromosome inheritance. Through binding to Cdc20, the Mad2 spindle checkpoint protein inhibits the target of this checkpoint, the ubiquitin protein ligase APC/C(Cdc20). We now show that without cofactor binding or covalent modification Mad2 adopts two distinct folded conformations at equilibrium (termed N1-Mad2 and N2-Mad2). The structure of N2-Mad2 has been determined by NMR spectroscopy. N2-Mad2 is much more potent in APC/C inhibition. Overexpression of a Mad2 mutant that specifically sequesters N2-Mad2 partially blocks checkpoint signaling in living cells. The two Mad2 conformers interconvert slowly in vitro, but interconversion is accelerated by a fragment of Mad1, an upstream regulator of Mad2. Our results suggest that the unusual two-state behavior of Mad2 is critical for spindle checkpoint signaling.
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{{STRUCTURE_1s2h| PDB=1s2h | SCENE= }}
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The Mad2 spindle checkpoint protein has two distinct natively folded states.,Luo X, Tang Z, Xia G, Wassmann K, Matsumoto T, Rizo J, Yu H Nat Struct Mol Biol. 2004 Apr;11(4):338-45. Epub 2004 Mar 14. PMID:15024386<ref>PMID:15024386</ref>
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===The Mad2 spindle checkpoint protein possesses two distinct natively folded states===
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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</div>
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{{ABSTRACT_PUBMED_15024386}}
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== References ==
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<references/>
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==About this Structure==
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__TOC__
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[[1s2h]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1S2H OCA].
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</StructureSection>
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==Reference==
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<ref group="xtra">PMID:015024386</ref><references group="xtra"/>
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[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
[[Category: Luo, X.]]
[[Category: Luo, X.]]

Revision as of 16:55, 29 September 2014

The Mad2 spindle checkpoint protein possesses two distinct natively folded states

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