6o1d

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==Cryo-EM structure of the centromeric nucleosome with native alpha satellite DNA==
==Cryo-EM structure of the centromeric nucleosome with native alpha satellite DNA==
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<StructureSection load='6o1d' size='340' side='right'caption='[[6o1d]], [[Resolution|resolution]] 3.40&Aring;' scene=''>
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<SX load='6o1d' size='340' side='right' viewer='molstar' caption='[[6o1d]], [[Resolution|resolution]] 3.40&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
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<table><tr><td colspan='2'>[[6o1d]] is a 10 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6O1D OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6O1D FirstGlance]. <br>
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<table><tr><td colspan='2'>[[6o1d]] is a 10 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6O1D OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6O1D FirstGlance]. <br>
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</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=6o1d FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6o1d OCA], [http://pdbe.org/6o1d PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=6o1d RCSB], [http://www.ebi.ac.uk/pdbsum/6o1d PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=6o1d ProSAT]</span></td></tr>
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Electron Microscopy, [[Resolution|Resolution]] 3.395&#8491;</td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=6o1d FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6o1d OCA], [https://pdbe.org/6o1d PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6o1d RCSB], [https://www.ebi.ac.uk/pdbsum/6o1d PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6o1d ProSAT]</span></td></tr>
</table>
</table>
== Function ==
== Function ==
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[[http://www.uniprot.org/uniprot/H2B1J_HUMAN H2B1J_HUMAN]] Core component of nucleosome. Nucleosomes wrap and compact DNA into chromatin, limiting DNA accessibility to the cellular machineries which require DNA as a template. Histones thereby play a central role in transcription regulation, DNA repair, DNA replication and chromosomal stability. DNA accessibility is regulated via a complex set of post-translational modifications of histones, also called histone code, and nucleosome remodeling.<ref>PMID:11859126</ref> <ref>PMID:12860195</ref> <ref>PMID:15019208</ref> Has broad antibacterial activity. May contribute to the formation of the functional antimicrobial barrier of the colonic epithelium, and to the bactericidal activity of amniotic fluid.<ref>PMID:11859126</ref> <ref>PMID:12860195</ref> <ref>PMID:15019208</ref> [[http://www.uniprot.org/uniprot/CENPA_HUMAN CENPA_HUMAN]] Histone H3-like variant which exclusively replaces conventional H3 in the nucleosome core of centromeric chromatin at the inner plate of the kinetochore. Required for recruitment and assembly of kinetochore proteins, mitotic progression and chromosome segregation. May serve as an epigenetic mark that propagates centromere identity through replication and cell division. The CENPA-H4 heterotetramer can bind DNA by itself (in vitro).<ref>PMID:20739937</ref> <ref>PMID:21478274</ref>
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[https://www.uniprot.org/uniprot/CENPA_HUMAN CENPA_HUMAN] Histone H3-like variant which exclusively replaces conventional H3 in the nucleosome core of centromeric chromatin at the inner plate of the kinetochore. Required for recruitment and assembly of kinetochore proteins, mitotic progression and chromosome segregation. May serve as an epigenetic mark that propagates centromere identity through replication and cell division. The CENPA-H4 heterotetramer can bind DNA by itself (in vitro).<ref>PMID:20739937</ref> <ref>PMID:21478274</ref>
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==See Also==
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*[[Centromere protein 3D structure|Centromere protein 3D structure]]
== References ==
== References ==
<references/>
<references/>
__TOC__
__TOC__
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</StructureSection>
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</SX>
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[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: Large Structures]]
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[[Category: Zhou, B R]]
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[[Category: Zhou B-R]]
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[[Category: Cenp-a]]
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[[Category: Centromere]]
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[[Category: Native alpha satellite dna]]
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[[Category: Nuclear protein]]
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[[Category: Nucleosome]]
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Current revision

Cryo-EM structure of the centromeric nucleosome with native alpha satellite DNA

6o1d, resolution 3.40Å

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