7z36
From Proteopedia
(Difference between revisions)
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| - | '''Unreleased structure''' | ||
| - | + | ==Crystal structure of the KAP1 tripartite motif in complex with the ZNF93 KRAB domain== | |
| - | + | <StructureSection load='7z36' size='340' side='right'caption='[[7z36]], [[Resolution|resolution]] 2.80Å' scene=''> | |
| - | + | == Structural highlights == | |
| - | + | <table><tr><td colspan='2'>[[7z36]] is a 5 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=7Z36 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7Z36 FirstGlance]. <br> | |
| - | + | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr> | |
| - | [[Category: | + | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=7z36 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7z36 OCA], [https://pdbe.org/7z36 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7z36 RCSB], [https://www.ebi.ac.uk/pdbsum/7z36 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7z36 ProSAT]</span></td></tr> |
| + | </table> | ||
| + | == Function == | ||
| + | [https://www.uniprot.org/uniprot/TIF1B_HUMAN TIF1B_HUMAN] Nuclear corepressor for KRAB domain-containing zinc finger proteins (KRAB-ZFPs). Mediates gene silencing by recruiting CHD3, a subunit of the nucleosome remodeling and deacetylation (NuRD) complex, and SETDB1 (which specifically methylates histone H3 at 'Lys-9' (H3K9me)) to the promoter regions of KRAB target genes. Enhances transcriptional repression by coordinating the increase in H3K9me, the decrease in histone H3 'Lys-9 and 'Lys-14' acetylation (H3K9ac and H3K14ac, respectively) and the disposition of HP1 proteins to silence gene expression. Recruitment of SETDB1 induces heterochromatinization. May play a role as a coactivator for CEBPB and NR3C1 in the transcriptional activation of ORM1. Also corepressor for ERBB4. Inhibits E2F1 activity by stimulating E2F1-HDAC1 complex formation and inhibiting E2F1 acetylation. May serve as a partial backup to prevent E2F1-mediated apoptosis in the absence of RB1. Important regulator of CDKN1A/p21(CIP1). Has E3 SUMO-protein ligase activity toward itself via its PHD-type zinc finger. Also specifically sumoylates IRF7, thereby inhibiting its transactivation activity. Ubiquitinates p53/TP53 leading to its proteosomal degradation; the function is enhanced by MAGEC2 and MAGEA2, and possibly MAGEA3 and MAGEA6.<ref>PMID:8769649</ref> <ref>PMID:9016654</ref> <ref>PMID:10347202</ref> <ref>PMID:11959841</ref> <ref>PMID:15882967</ref> <ref>PMID:16107876</ref> <ref>PMID:17178852</ref> <ref>PMID:16862143</ref> <ref>PMID:17079232</ref> <ref>PMID:17704056</ref> <ref>PMID:17942393</ref> <ref>PMID:18082607</ref> <ref>PMID:18060868</ref> <ref>PMID:20858735</ref> <ref>PMID:20864041</ref> <ref>PMID:20424263</ref> <ref>PMID:21940674</ref> [https://www.uniprot.org/uniprot/ENLYS_BPT4 ENLYS_BPT4] Endolysin with lysozyme activity that degrades host peptidoglycans and participates with the holin and spanin proteins in the sequential events which lead to the programmed host cell lysis releasing the mature viral particles. Once the holin has permeabilized the host cell membrane, the endolysin can reach the periplasm and break down the peptidoglycan layer.<ref>PMID:22389108</ref> | ||
| + | == References == | ||
| + | <references/> | ||
| + | __TOC__ | ||
| + | </StructureSection> | ||
| + | [[Category: Homo sapiens]] | ||
| + | [[Category: Large Structures]] | ||
| + | [[Category: Modis Y]] | ||
| + | [[Category: Stoll GA]] | ||
Revision as of 07:20, 3 November 2022
Crystal structure of the KAP1 tripartite motif in complex with the ZNF93 KRAB domain
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