4nft

From Proteopedia

(Difference between revisions)

Revision as of 08:26, 11 January 2023

Crystal structure of human lnkH2B-h2A.Z-Anp32e

Structural highlights

4nft is a 6 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

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.^[1] H2B2E_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.^[2] ^[3] ^[4] 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.^[5] ^[6] ^[7]

Publication Abstract from PubMed

H2A.Z is a highly conserved histone variant in all species. The chromatin deposition of H2A.Z is specifically catalyzed by the yeast chromatin remodeling complex SWR1 and its mammalian counterpart SRCAP. However, the mechanism by which H2A.Z is preferentially recognized by non-histone proteins remains elusive. Here we identified Anp32e, a novel higher eukaryote-specific histone chaperone for H2A.Z. Anp32e preferentially associates with H2A.Z-H2B dimers rather than H2A-H2B dimers in vitro and in vivo and dissociates non-nucleosomal aggregates formed by DNA and H2A-H2B. We determined the crystal structure of the Anp32e chaperone domain (186-232) in complex with the H2A.Z-H2B dimer. In this structure, the region containing Anp32e residues 214-224, which is absent in other Anp32 family proteins, specifically interacts with the extended H2A.Z alphaC helix, which exhibits an unexpected conformational change. Genome-wide profiling of Anp32e revealed a remarkable co-occupancy between Anp32e and H2A.Z. Cells overexpressing Anp32e displayed a strong global H2A.Z loss at the +1 nucleosomes, whereas cells depleted of Anp32e displayed a moderate global H2A.Z increase at the +1 nucleosomes. This suggests that Anp32e may help to resolve the non-nucleosomal H2A.Z aggregates and also facilitate the removal of H2A.Z at the +1 nucleosomes, and the latter may help RNA polymerase II to pass the first nucleosomal barrier.

Anp32e, a higher eukaryotic histone chaperone directs preferential recognition for H2A.Z.,Mao Z, Pan L, Wang W, Sun J, Shan S, Dong Q, Liang X, Dai L, Ding X, Chen S, Zhang Z, Zhu B, Zhou Z Cell Res. 2014 Apr;24(4):389-99. doi: 10.1038/cr.2014.30. Epub 2014 Mar 11. PMID:24613878^[8]

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

References

↑ Farris SD, Rubio ED, Moon JJ, Gombert WM, Nelson BH, Krumm A. Transcription-induced chromatin remodeling at the c-myc gene involves the local exchange of histone H2A.Z. J Biol Chem. 2005 Jul 1;280(26):25298-303. Epub 2005 May 6. PMID:15878876 doi:http://dx.doi.org/10.1074/jbc.M501784200
↑ Kim HS, Cho JH, Park HW, Yoon H, Kim MS, Kim SC. Endotoxin-neutralizing antimicrobial proteins of the human placenta. J Immunol. 2002 Mar 1;168(5):2356-64. PMID:11859126
↑ Tollin M, Bergman P, Svenberg T, Jornvall H, Gudmundsson GH, Agerberth B. Antimicrobial peptides in the first line defence of human colon mucosa. Peptides. 2003 Apr;24(4):523-30. PMID:12860195
↑ Howell SJ, Wilk D, Yadav SP, Bevins CL. Antimicrobial polypeptides of the human colonic epithelium. Peptides. 2003 Nov;24(11):1763-70. PMID:15019208 doi:10.1016/j.peptides.2003.07.028
↑ Kim HS, Cho JH, Park HW, Yoon H, Kim MS, Kim SC. Endotoxin-neutralizing antimicrobial proteins of the human placenta. J Immunol. 2002 Mar 1;168(5):2356-64. PMID:11859126
↑ Tollin M, Bergman P, Svenberg T, Jornvall H, Gudmundsson GH, Agerberth B. Antimicrobial peptides in the first line defence of human colon mucosa. Peptides. 2003 Apr;24(4):523-30. PMID:12860195
↑ Howell SJ, Wilk D, Yadav SP, Bevins CL. Antimicrobial polypeptides of the human colonic epithelium. Peptides. 2003 Nov;24(11):1763-70. PMID:15019208 doi:10.1016/j.peptides.2003.07.028
↑ Mao Z, Pan L, Wang W, Sun J, Shan S, Dong Q, Liang X, Dai L, Ding X, Chen S, Zhang Z, Zhu B, Zhou Z. Anp32e, a higher eukaryotic histone chaperone directs preferential recognition for H2A.Z. Cell Res. 2014 Apr;24(4):389-99. doi: 10.1038/cr.2014.30. Epub 2014 Mar 11. PMID:24613878 doi:http://dx.doi.org/10.1038/cr.2014.30

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/4nft"

@@ Line 1: / Line 1: @@
 ==Crystal structure of human lnkH2B-h2A.Z-Anp32e==
-<StructureSection load='4nft' size='340' side='right' caption='[[4nft]], [[Resolution|resolution]] 2.61&Aring;' scene=''>
+<StructureSection load='4nft' size='340' side='right'caption='[[4nft]], [[Resolution|resolution]] 2.61&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[4nft]] is a 6 chain structure with sequence from [http://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4NFT OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4NFT FirstGlance]. <br>
+<table><tr><td colspan='2'>[[4nft]] is a 6 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=4NFT OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4NFT FirstGlance]. <br>
-</td></tr><tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">H2BFQ, H2AZ ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN]), ANP32E ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</td></tr>
+</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=4nft FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4nft OCA], [https://pdbe.org/4nft PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4nft RCSB], [https://www.ebi.ac.uk/pdbsum/4nft PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4nft ProSAT]</span></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=4nft FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4nft OCA], [http://pdbe.org/4nft PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4nft RCSB], [http://www.ebi.ac.uk/pdbsum/4nft PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=4nft ProSAT]</span></td></tr>
 </table>
 == Function ==
-[[http://www.uniprot.org/uniprot/H2B2E_HUMAN H2B2E_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/AN32E_HUMAN AN32E_HUMAN]] Inhibits activity of protein phosphatase 2A (PP2A). Does not inhibit protein phosphatase 1. May play a role in cerebellar development and synaptogenesis process by modulating PP2A activity (By similarity).
+[https://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/H2B2E_HUMAN H2B2E_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>
 <div style="background-color:#fffaf0;">
 == Publication Abstract from PubMed ==
@@ Line 18: / Line 17: @@
 </div>
 <div class="pdbe-citations 4nft" style="background-color:#fffaf0;"></div>
+==See Also==
+*[[Histone 3D structures|Histone 3D structures]]
 == References ==
 <references/>
 __TOC__
 </StructureSection>
-[[Category: Human]]
+[[Category: Homo sapiens]]
-[[Category: Chen, S]]
+[[Category: Large Structures]]
-[[Category: Dai, L]]
+[[Category: Chen S]]
-[[Category: Ding, X]]
+[[Category: Dai L]]
-[[Category: Dong, Q]]
+[[Category: Ding X]]
-[[Category: Liang, X]]
+[[Category: Dong Q]]
-[[Category: Mao, Z]]
+[[Category: Liang X]]
-[[Category: Pan, L]]
+[[Category: Mao Z]]
-[[Category: Shan, S]]
+[[Category: Pan L]]
-[[Category: Sun, J]]
+[[Category: Shan S]]
-[[Category: Wang, W]]
+[[Category: Sun J]]
-[[Category: Zhang, Z]]
+[[Category: Wang W]]
-[[Category: Zhou, Z]]
+[[Category: Zhang Z]]
-[[Category: Zhu, B]]
+[[Category: Zhou Z]]
-[[Category: Chaperone]]
+[[Category: Zhu B]]
-[[Category: Histone binding protein]]

4nft

From Proteopedia

Revision as of 08:26, 11 January 2023

Crystal structure of human lnkH2B-h2A.Z-Anp32e

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