4q6f: Difference between revisions
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New page: '''Unreleased structure''' The entry 4q6f is ON HOLD Authors: Tallant, C., Overvoorde, L., Krojer, T., Filippakopoulos, P., von Delft, F., Arrowsmith, C.H., Edwards, A.M., Bountra, C., ... |
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==Crystal structure of human BAZ2A PHD zinc finger in complex with unmodified H3K4 histone peptide== | |||
<StructureSection load='4q6f' size='340' side='right'caption='[[4q6f]], [[Resolution|resolution]] 1.91Å' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[4q6f]] is a 7 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=4Q6F OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4Q6F FirstGlance]. <br> | |||
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.91Å</td></tr> | |||
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></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=4q6f FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4q6f OCA], [https://pdbe.org/4q6f PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4q6f RCSB], [https://www.ebi.ac.uk/pdbsum/4q6f PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4q6f ProSAT]</span></td></tr> | |||
</table> | |||
== Function == | |||
[https://www.uniprot.org/uniprot/BAZ2A_HUMAN BAZ2A_HUMAN] Essential component of the NoRC (nucleolar remodeling complex) complex, a complex that mediates silencing of a fraction of rDNA by recruiting histone-modifying enzymes and DNA methyltransferases, leading to heterochromatin formation and transcriptional silencing. In the complex, it plays a central role by being recruited to rDNA and by targeting chromatin modifying enzymes such as HDAC1, leading to repress RNA polymerase I transcription. Recruited to rDNA via its interaction with TTF1 and its ability to recognize and bind histone H4 acetylated on 'Lys-16' (H4K16ac), leading to deacetylation of H4K5ac, H4K8ac, H4K12ac but not H4K16ac. Specifically binds pRNAs, 150-250 nucleotide RNAs that are complementary in sequence to the rDNA promoter; pRNA-binding is required for heterochromatin formation and rDNA silencing (By similarity). | |||
==See Also== | |||
*[[Bromodomain adjacent to zinc finger 3D structures|Bromodomain adjacent to zinc finger 3D structures]] | |||
__TOC__ | |||
</StructureSection> | |||
[[Category: Homo sapiens]] | |||
[[Category: Large Structures]] | |||
[[Category: Arrowsmith CH]] | |||
[[Category: Bountra C]] | |||
[[Category: Ciulli A]] | |||
[[Category: Edwards AM]] | |||
[[Category: Filippakopoulos P]] | |||
[[Category: Knapp S]] | |||
[[Category: Krojer T]] | |||
[[Category: Overvoorde L]] | |||
[[Category: Tallant C]] | |||
[[Category: Von Delft F]] | |||
Latest revision as of 12:44, 1 March 2024
Crystal structure of human BAZ2A PHD zinc finger in complex with unmodified H3K4 histone peptide
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