3vh5
From Proteopedia
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| - | [[ | + | ==Crystal structure of the chicken CENP-T histone fold/CENP-W/CENP-S/CENP-X heterotetrameric complex, crystal form I== |
| + | <StructureSection load='3vh5' size='340' side='right' caption='[[3vh5]], [[Resolution|resolution]] 2.40Å' scene=''> | ||
| + | == Structural highlights == | ||
| + | <table><tr><td colspan='2'>[[3vh5]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Gallus_gallus Gallus gallus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3VH5 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3VH5 FirstGlance]. <br> | ||
| + | </td></tr><tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[3vh6|3vh6]]</td></tr> | ||
| + | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">CENPT ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9031 Gallus gallus])</td></tr> | ||
| + | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3vh5 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3vh5 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3vh5 RCSB], [http://www.ebi.ac.uk/pdbsum/3vh5 PDBsum]</span></td></tr> | ||
| + | </table> | ||
| + | == Function == | ||
| + | [[http://www.uniprot.org/uniprot/F1NPG5_CHICK F1NPG5_CHICK]] Component of the CENPA-NAC (nucleosome-associated) complex, a complex that plays a central role in assembly of kinetochore proteins, mitotic progression and chromosome segregation (By similarity). The CENPA-NAC complex recruits the CENPA-CAD (nucleosome distal) complex and may be involved in incorporation of newly synthesized CENPA into centromeres (By similarity). Part of a nucleosome-associated complex that binds specifically to histone H3-containing nucleosomes at the centromere, as opposed to nucleosomes containing CENPA. Component of the heterotetrameric CENP-T-W-S-X complex that binds and supercoils DNA, and plays an important role in kinetochore assembly. CENPT has a fundamental role in kinetochore assembly and function. It is one of the inner kinetochore proteins, with most further proteins binding downstream. Required for normal chromosome organization and normal progress through mitosis.<ref>PMID:19070575</ref> <ref>PMID:22304917</ref> | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | The multiprotein kinetochore complex must assemble at a specific site on each chromosome to achieve accurate chromosome segregation. Defining the nature of the DNA-protein interactions that specify the position of the kinetochore and provide a scaffold for kinetochore formation remain key goals. Here, we demonstrate that the centromeric histone-fold-containing CENP-T-W and CENP-S-X complexes coassemble to form a stable CENP-T-W-S-X heterotetramer. High-resolution structural analysis of the individual complexes and the heterotetramer reveals similarity to other histone fold-containing complexes including canonical histones within a nucleosome. The CENP-T-W-S-X heterotetramer binds to and supercoils DNA. Mutants designed to compromise heterotetramerization or the DNA-protein contacts around the heterotetramer strongly reduce the DNA binding and supercoiling activities in vitro and compromise kinetochore assembly in vivo. These data suggest that the CENP-T-W-S-X complex forms a unique nucleosome-like structure to generate contacts with DNA, extending the "histone code" beyond canonical nucleosome proteins. | ||
| - | + | CENP-T-W-S-X Forms a Unique Centromeric Chromatin Structure with a Histone-like Fold.,Nishino T, Takeuchi K, Gascoigne KE, Suzuki A, Hori T, Oyama T, Morikawa K, Cheeseman IM, Fukagawa T Cell. 2012 Feb 3;148(3):487-501. PMID:22304917<ref>PMID:22304917</ref> | |
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| - | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |
| + | </div> | ||
| - | + | ==See Also== | |
| - | + | *[[Centromere protein|Centromere protein]] | |
| - | + | == References == | |
| - | + | <references/> | |
| - | + | __TOC__ | |
| - | + | </StructureSection> | |
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| - | == | + | |
| - | [[ | + | |
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| - | == | + | |
| - | < | + | |
[[Category: Gallus gallus]] | [[Category: Gallus gallus]] | ||
| - | [[Category: Cheeseman, I M | + | [[Category: Cheeseman, I M]] |
| - | [[Category: Fukagawa, T | + | [[Category: Fukagawa, T]] |
| - | [[Category: Gascoigne, K E | + | [[Category: Gascoigne, K E]] |
| - | [[Category: Hori, T | + | [[Category: Hori, T]] |
| - | [[Category: Morikawa, K | + | [[Category: Morikawa, K]] |
| - | [[Category: Nishino, T | + | [[Category: Nishino, T]] |
| - | [[Category: Oyama, T | + | [[Category: Oyama, T]] |
| - | [[Category: Suzuki, A | + | [[Category: Suzuki, A]] |
| - | [[Category: Takeuchi, K | + | [[Category: Takeuchi, K]] |
[[Category: Chromosome segregation]] | [[Category: Chromosome segregation]] | ||
[[Category: Dna binding]] | [[Category: Dna binding]] | ||
Revision as of 09:24, 4 January 2015
Crystal structure of the chicken CENP-T histone fold/CENP-W/CENP-S/CENP-X heterotetrameric complex, crystal form I
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