This old version of Proteopedia is provided for student assignments while the new version is undergoing repairs. Content and edits done in this old version of Proteopedia after March 1, 2026 will eventually be lost when it is retired in about June of 2026.

Apply for new accounts at the new Proteopedia. Your logins will work in both the old and new versions.

6jou

From Proteopedia

(Difference between revisions)

Jump to: navigation, search

Current revision

Crystal structure of the human nucleosome containing H2A.Z.1 S42R

Structural highlights

6jou is a 10 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:	X-ray diffraction, Resolution 2.17Å
Ligands:
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

H31_HUMAN

Publication Abstract from PubMed

The nucleosome containing the histone H2A.Z.1 variant is unstable, as compared to the canonical nucleosome in vitro, and the incorporation of H2A.Z.1 into chromatin is less stable than that of the canonical H2A in vivo. In the present study, we designed a human H2A.Z.1(S42R) mutant, in which the Ser42 residue is replaced by Arg. In the crystal structure of the nucleosome containing H2A.Z.1(S42R), the Arg residue inserted at the H2A.Z.1-Ser42 position forms additional hydrogen bonds and electrostatic interactions with the DNA backbone phosphates. The Arg42 residue is located in the L1-loop region of H2A.Z.1, but the backbone geometry of the L1-loop is not affected by the H2A.Z.1(S42R) substitution. The nucleosome containing H2A.Z.1(S42R) exhibited enhanced thermal stability, as compared to that containing wild-type H2A.Z.1 in vitro. Fluorescence recovery after photobleaching experiments revealed that H2A.Z.1(S42R) was more stably incorporated in chromatin than wild-type H2A.Z.1 in living cells. Therefore, the H2A.Z.1(S42R) mutant stabilizes the nucleosome in vitro and in vivo, and may be useful as a tool to study the functional significance of the unstable nature of the H2A.Z.1 nucleosome.

Structure-based design of an H2A.Z.1 mutant stabilizing a nucleosome in vitro and in vivo.,Horikoshi N, Kujirai T, Sato K, Kimura H, Kurumizaka H Biochem Biophys Res Commun. 2019 Aug 6;515(4):719-724. doi:, 10.1016/j.bbrc.2019.06.012. Epub 2019 Jun 8. PMID:31186139^[1]

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

References

↑ Horikoshi N, Kujirai T, Sato K, Kimura H, Kurumizaka H. Structure-based design of an H2A.Z.1 mutant stabilizing a nucleosome in vitro and in vivo. Biochem Biophys Res Commun. 2019 Aug 6;515(4):719-724. doi:, 10.1016/j.bbrc.2019.06.012. Epub 2019 Jun 8. PMID:31186139 doi:http://dx.doi.org/10.1016/j.bbrc.2019.06.012

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/6jou"

@@ Line 3: / Line 3: @@
 <StructureSection load='6jou' size='340' side='right'caption='[[6jou]], [[Resolution|resolution]] 2.17&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[6jou]] is a 10 chain structure with sequence from [http://en.wikipedia.org/wiki/ ] and [http://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6JOU OCA]. For a <b>guided tour on the structure components</b> use [http://proteopedia.org/fgij/fg.htm?mol=6JOU FirstGlance]. <br>
+<table><tr><td colspan='2'>[[6jou]] 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=6JOU OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6JOU FirstGlance]. <br>
-</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=MN:MANGANESE+(II)+ION'>MN</scene></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]] 2.17&#8491;</td></tr>
-<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">HIST1H3A, H3FA, HIST1H3B, H3FL, HIST1H3C, H3FC, HIST1H3D, H3FB, HIST1H3E, H3FD, HIST1H3F, H3FI, HIST1H3G, H3FH, HIST1H3H, H3FK, HIST1H3I, H3FF, HIST1H3J, H3FJ ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN]), HIST1H4A, H4/A, H4FA, HIST1H4B, H4/I, H4FI, HIST1H4C, H4/G, H4FG, HIST1H4D, H4/B, H4FB, HIST1H4E, H4/J, H4FJ, HIST1H4F, H4/C, H4FC, HIST1H4H, H4/H, H4FH, HIST1H4I, H4/M, H4FM, HIST1H4J, H4/E, H4FE, HIST1H4K, H4/D, H4FD, HIST1H4L, H4/K, H4FK, HIST2H4A, H4/N, H4F2, H4FN, HIST2H4, HIST2H4B, H4/O, H4FO, HIST4H4 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN]), H2AFZ, H2AZ ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN]), HIST1H2BJ, H2BFR ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</td></tr>
+<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=MN:MANGANESE+(II)+ION'>MN</scene></td></tr>
-<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://proteopedia.org/fgij/fg.htm?mol=6jou FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6jou OCA], [http://pdbe.org/6jou PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=6jou RCSB], [http://www.ebi.ac.uk/pdbsum/6jou PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=6jou ProSAT]</span></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=6jou FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6jou OCA], [https://pdbe.org/6jou PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6jou RCSB], [https://www.ebi.ac.uk/pdbsum/6jou PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6jou ProSAT]</span></td></tr>
 </table>
 == Function ==
-[[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/H2AZ_HUMAN H2AZ_HUMAN]] Variant histone H2A which replaces conventional H2A in a subset of nucleosomes. 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. May be involved in the formation of constitutive heterochromatin. May be required for chromosome segregation during cell division.<ref>PMID:15878876</ref>
+[https://www.uniprot.org/uniprot/H31_HUMAN H31_HUMAN]
 <div style="background-color:#fffaf0;">
 == Publication Abstract from PubMed ==
@@ Line 26: / Line 26: @@
 __TOC__
 </StructureSection>
-[[Category: Human]]
+[[Category: Homo sapiens]]
 [[Category: Large Structures]]
-[[Category: Horikoshi, N]]
+[[Category: Horikoshi N]]
-[[Category: Kurumizaka, H]]
+[[Category: Kurumizaka H]]
-[[Category: Mizukami, Y]]
+[[Category: Mizukami Y]]
-[[Category: Sato, K]]
+[[Category: Sato K]]
-[[Category: Dna binding protein]]
-[[Category: Dna binding protein-dna complex]]
-[[Category: Dna-protein complex]]
-[[Category: Histone fold]]
-[[Category: Histone variant]]
-[[Category: Nucleosome]]

6jou

From Proteopedia

Current revision

Crystal structure of the human nucleosome containing H2A.Z.1 S42R

Structural highlights

Function

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

Personal tools

Navigation

Search

Toolbox