3vh6

From Proteopedia

(Difference between revisions)

Current revision

Crystal structure of the chicken CENP-T histone fold/CENP-W/CENP-S/CENP-X heterotetrameric complex, crystal form II

Structural highlights

3vh6 is a 4 chain structure with sequence from Gallus gallus. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:	X-ray diffraction, Resolution 3.351Å
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

CENPS_CHICK DNA-binding component of the Fanconi anemia (FA) core complex. Required for the normal activation of the FA pathway, leading to monoubiquitination of the FANCI-FANCD2 complex in response to DNA damage, cellular resistance to DNA cross-linking drugs, and prevention of chromosomal breakage (PubMed:20347428). In complex with CENPX (MHF heterodimer), crucial cofactor for FANCM in both binding and ATP-dependent remodeling of DNA. Stabilizes FANCM. In complex with CENPX and FANCM (but not other FANC proteins), rapidly recruited to blocked forks and promotes gene conversion at blocked replication forks. In complex with CENPT, CENPW and CENPX (CENP-T-W-S-X heterotetramer), involved in the formation of a functional kinetochore outer plate, which is essential for kinetochore-microtubule attachment and faithful mitotic progression (PubMed:19620631). As a component of MHF and CENP-T-W-S-X complexes, binds DNA and bends it to form a nucleosome-like structure. DNA-binding function is fulfilled in the presence of CENPX, with the following preference for DNA substates: Holliday junction > double-stranded > splay arm > single-stranded. Does not bind DNA on its own (By similarity).[UniProtKB:Q8N2Z9]^[1] ^[2]

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^[3]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Amano M, Suzuki A, Hori T, Backer C, Okawa K, Cheeseman IM, Fukagawa T. The CENP-S complex is essential for the stable assembly of outer kinetochore structure. J Cell Biol. 2009 Jul 27;186(2):173-82. doi: 10.1083/jcb.200903100. Epub 2009 Jul, 20. PMID:19620631 doi:http://dx.doi.org/10.1083/jcb.200903100
↑ Yan Z, Delannoy M, Ling C, Daee D, Osman F, Muniandy PA, Shen X, Oostra AB, Du H, Steltenpool J, Lin T, Schuster B, Décaillet C, Stasiak A, Stasiak AZ, Stone S, Hoatlin ME, Schindler D, Woodcock CL, Joenje H, Sen R, de Winter JP, Li L, Seidman MM, Whitby MC, Myung K, Constantinou A, Wang W. A histone-fold complex and FANCM form a conserved DNA-remodeling complex to maintain genome stability. Mol Cell. 2010 Mar 26;37(6):865-78. PMID:20347428 doi:10.1016/j.molcel.2010.01.039
↑ Nishino T, Takeuchi K, Gascoigne KE, Suzuki A, Hori T, Oyama T, Morikawa K, Cheeseman IM, Fukagawa T. CENP-T-W-S-X Forms a Unique Centromeric Chromatin Structure with a Histone-like Fold. Cell. 2012 Feb 3;148(3):487-501. PMID:22304917 doi:10.1016/j.cell.2011.11.061

1 Structural highlights
2 Function
3 Publication Abstract from PubMed
4 See Also
5 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/3vh6"

@@ Line 3: / Line 3: @@
 <StructureSection load='3vh6' size='340' side='right'caption='[[3vh6]], [[Resolution|resolution]] 3.35&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[3vh6]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Chick Chick]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3VH6 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3VH6 FirstGlance]. <br>
+<table><tr><td colspan='2'>[[3vh6]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Gallus_gallus Gallus gallus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3VH6 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3VH6 FirstGlance]. <br>
-</td></tr><tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[3vh5|3vh5]]</div></td></tr>
+</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 3.351&#8491;</td></tr>
-<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">CENPT ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9031 CHICK])</td></tr>
 <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=3vh6 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3vh6 OCA], [https://pdbe.org/3vh6 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3vh6 RCSB], [https://www.ebi.ac.uk/pdbsum/3vh6 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3vh6 ProSAT]</span></td></tr>
 </table>
 == Function ==
-[[https://www.uniprot.org/uniprot/CENPT_CHICK CENPT_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>
+[https://www.uniprot.org/uniprot/CENPS_CHICK CENPS_CHICK] DNA-binding component of the Fanconi anemia (FA) core complex. Required for the normal activation of the FA pathway, leading to monoubiquitination of the FANCI-FANCD2 complex in response to DNA damage, cellular resistance to DNA cross-linking drugs, and prevention of chromosomal breakage (PubMed:20347428). In complex with CENPX (MHF heterodimer), crucial cofactor for FANCM in both binding and ATP-dependent remodeling of DNA. Stabilizes FANCM. In complex with CENPX and FANCM (but not other FANC proteins), rapidly recruited to blocked forks and promotes gene conversion at blocked replication forks. In complex with CENPT, CENPW and CENPX (CENP-T-W-S-X heterotetramer), involved in the formation of a functional kinetochore outer plate, which is essential for kinetochore-microtubule attachment and faithful mitotic progression (PubMed:19620631). As a component of MHF and CENP-T-W-S-X complexes, binds DNA and bends it to form a nucleosome-like structure. DNA-binding function is fulfilled in the presence of CENPX, with the following preference for DNA substates: Holliday junction > double-stranded > splay arm > single-stranded. Does not bind DNA on its own (By similarity).[UniProtKB:Q8N2Z9]<ref>PMID:19620631</ref> <ref>PMID:20347428</ref>
 <div style="background-color:#fffaf0;">
 == Publication Abstract from PubMed ==
@@ Line 26: / Line 25: @@
 __TOC__
 </StructureSection>
-[[Category: Chick]]
+[[Category: Gallus gallus]]
 [[Category: Large Structures]]
-[[Category: Cheeseman, I M]]
+[[Category: Cheeseman IM]]
-[[Category: Fukagawa, T]]
+[[Category: Fukagawa T]]
-[[Category: Gascoigne, K E]]
+[[Category: Gascoigne KE]]
-[[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: Dna binding]]
-[[Category: Dna binding protein]]
-[[Category: Histone fold]]
-[[Category: Nucleus]]

3vh6

From Proteopedia

Current revision

Crystal structure of the chicken CENP-T histone fold/CENP-W/CENP-S/CENP-X heterotetrameric complex, crystal form II

Structural highlights

Function

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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