View source for 8jbx


==Human canonical 601 DNA nucleosome==
<StructureSection load='8jbx' size='340' side='right'caption='[[8jbx]], [[Resolution|resolution]] 3.35&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[8jbx]] is a 10 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens] and [https://en.wikipedia.org/wiki/Synthetic_construct Synthetic construct]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=8JBX OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=8JBX FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Electron Microscopy, [[Resolution|Resolution]] 3.35&#8491;</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=8jbx FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=8jbx OCA], [https://pdbe.org/8jbx PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=8jbx RCSB], [https://www.ebi.ac.uk/pdbsum/8jbx PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=8jbx ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/H31_HUMAN H31_HUMAN] 
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Multiple testis-specific histone variants are involved in the dynamic chromatin transitions during spermatogenesis. H2B.W1 (previously called H2BFWT) is an H2B variant specific to primate testis with hitherto unclear functions, although its single-nucleotide polymorphisms (SNPs) are closely associated with male non-obstructive infertility. Here, we found that H2B.W1 is only expressed in the mid-late spermatogonia stages, and H2B.W1 nucleosomes are defined by a more flexible structure originating from weakened interactions between histones and DNA. Furthermore, one of its SNPs, H2B.W1-H100R, which is associated with infertility, further destabilizes the nucleosomes and increases the nucleosome unwrapping rate by interfering with the R100 and H4 K91/R92 interaction. Our results suggest that destabilizing H2B.W1 containing nucleosomes might change the chromatin structure of spermatogonia, and that H2B.W1-H100R enhances the nucleosome-destabilizing effects, leading to infertility.

Testis-specific H2B.W1 disrupts nucleosome integrity by reducing DNA-histone interactions.,Ding D, Pang MYH, Deng M, Nguyen TT, Liu Y, Sun X, Xu Z, Zhang Y, Zhai Y, Yan Y, Ishibashi T Nucleic Acids Res. 2024 Oct 28;52(19):11612-11625. doi: 10.1093/nar/gkae825. PMID:39329259<ref>PMID:39329259</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 8jbx" style="background-color:#fffaf0;"></div>
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: Synthetic construct]]
[[Category: Ding DB]]
[[Category: Ishibashi T]]
[[Category: Nguyen TT]]