View source for 4qen


==crystal structure of KRYPTONITE in complex with mCHH DNA and SAH==
<StructureSection load='4qen' size='340' side='right'caption='[[4qen]], [[Resolution|resolution]] 2.00&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[4qen]] is a 3 chain structure with sequence from [https://en.wikipedia.org/wiki/Arabidopsis_thaliana Arabidopsis thaliana]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4QEN OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4QEN 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]] 2.002&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=5CM:5-METHYL-2-DEOXY-CYTIDINE-5-MONOPHOSPHATE'>5CM</scene>, <scene name='pdbligand=SAH:S-ADENOSYL-L-HOMOCYSTEINE'>SAH</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=4qen FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4qen OCA], [https://pdbe.org/4qen PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4qen RCSB], [https://www.ebi.ac.uk/pdbsum/4qen PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4qen ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/SUVH4_ARATH SUVH4_ARATH] Histone methyltransferase. Methylates 'Lys-9' of histone H3. H3 'Lys-9' methylation represents a specific tag for epigenetic transcriptional repression. The silencing mechanism via DNA CpNpG methylation requires the targeting of chromomethylase CMT3 to methylated histones, probably through an interaction with an HP1-like adapter. By its function, KYP is directly required for the maintenance of the DNA CpNpG and asymmetric methylation. Involved in the silencing of transposable elements.<ref>PMID:11898023</ref> <ref>PMID:15457214</ref> <ref>PMID:15598823</ref> <ref>PMID:16277745</ref> <ref>PMID:16287862</ref> 

==See Also==
*[[Histone methyltransferase 3D structures|Histone methyltransferase 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Arabidopsis thaliana]]
[[Category: Large Structures]]
[[Category: Du J]]
[[Category: Li S]]
[[Category: Patel DJ]]