|
|
| Line 1: |
Line 1: |
| | | | |
| | ==crystal structure of Se-substituted Zea mays ZMET2 in complex with SAH== | | ==crystal structure of Se-substituted Zea mays ZMET2 in complex with SAH== |
| - | <StructureSection load='4fsx' size='340' side='right' caption='[[4fsx]], [[Resolution|resolution]] 3.20Å' scene=''> | + | <StructureSection load='4fsx' size='340' side='right'caption='[[4fsx]], [[Resolution|resolution]] 3.20Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[4fsx]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Maize Maize]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4FSX OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4FSX FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[4fsx]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Zea_mays Zea mays]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4FSX OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4FSX FirstGlance]. <br> |
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=SAH:S-ADENOSYL-L-HOMOCYSTEINE'>SAH</scene></td></tr> | + | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=MSE:SELENOMETHIONINE'>MSE</scene>, <scene name='pdbligand=SAH:S-ADENOSYL-L-HOMOCYSTEINE'>SAH</scene></td></tr> |
| - | <tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=MSE:SELENOMETHIONINE'>MSE</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=4fsx FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4fsx OCA], [https://pdbe.org/4fsx PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4fsx RCSB], [https://www.ebi.ac.uk/pdbsum/4fsx PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4fsx ProSAT]</span></td></tr> |
| - | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[4ft2|4ft2]], [[4ft4|4ft4]]</td></tr>
| + | |
| - | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">MET2A, ZMET2 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=4577 MAIZE])</td></tr>
| + | |
| - | <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/DNA_(cytosine-5-)-methyltransferase DNA (cytosine-5-)-methyltransferase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.1.1.37 2.1.1.37] </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=4fsx FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4fsx OCA], [http://pdbe.org/4fsx PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4fsx RCSB], [http://www.ebi.ac.uk/pdbsum/4fsx PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=4fsx ProSAT]</span></td></tr> | + | |
| | </table> | | </table> |
| | + | == Function == |
| | + | [https://www.uniprot.org/uniprot/CMT1_MAIZE CMT1_MAIZE] |
| | <div style="background-color:#fffaf0;"> | | <div style="background-color:#fffaf0;"> |
| | == Publication Abstract from PubMed == | | == Publication Abstract from PubMed == |
| Line 22: |
Line 20: |
| | | | |
| | ==See Also== | | ==See Also== |
| - | *[[DNA methyltransferase|DNA methyltransferase]] | + | *[[DNA methyltransferase 3D structures|DNA methyltransferase 3D structures]] |
| | == References == | | == References == |
| | <references/> | | <references/> |
| | __TOC__ | | __TOC__ |
| | </StructureSection> | | </StructureSection> |
| - | [[Category: Maize]] | + | [[Category: Large Structures]] |
| - | [[Category: Du, J]] | + | [[Category: Zea mays]] |
| - | [[Category: Patel, D J]] | + | [[Category: Du J]] |
| - | [[Category: Bah domain]] | + | [[Category: Patel DJ]] |
| - | [[Category: Chromodomain]]
| + | |
| - | [[Category: Dna methyltransferase domain]]
| + | |
| - | [[Category: H3k9me2 binding]]
| + | |
| - | [[Category: Transferase]]
| + | |
| Structural highlights
Function
CMT1_MAIZE
Publication Abstract from PubMed
DNA methylation and histone modification exert epigenetic control over gene expression. CHG methylation by CHROMOMETHYLASE3 (CMT3) depends on histone H3K9 dimethylation (H3K9me2), but the mechanism underlying this relationship is poorly understood. Here, we report multiple lines of evidence that CMT3 interacts with H3K9me2-containing nucleosomes. CMT3 genome locations nearly perfectly correlated with H3K9me2, and CMT3 stably associated with H3K9me2-containing nucleosomes. Crystal structures of maize CMT3 homolog ZMET2, in complex with H3K9me2 peptides, showed that ZMET2 binds H3K9me2 via both bromo adjacent homology (BAH) and chromo domains. The structures reveal an aromatic cage within both BAH and chromo domains as interaction interfaces that capture H3K9me2. Mutations that abolish either interaction disrupt CMT3 binding to nucleosomes and show a complete loss of CMT3 activity in vivo. Our study establishes dual recognition of H3K9me2 marks by BAH and chromo domains and reveals a distinct mechanism of interplay between DNA methylation and histone modification.
Dual Binding of Chromomethylase Domains to H3K9me2-Containing Nucleosomes Directs DNA Methylation in Plants.,Du J, Zhong X, Bernatavichute YV, Stroud H, Feng S, Caro E, Vashisht AA, Terragni J, Chin HG, Tu A, Hetzel J, Wohlschlegel JA, Pradhan S, Patel DJ, Jacobsen SE Cell. 2012 Sep 28;151(1):167-80. doi: 10.1016/j.cell.2012.07.034. PMID:23021223[1]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
See Also
References
- ↑ Du J, Zhong X, Bernatavichute YV, Stroud H, Feng S, Caro E, Vashisht AA, Terragni J, Chin HG, Tu A, Hetzel J, Wohlschlegel JA, Pradhan S, Patel DJ, Jacobsen SE. Dual Binding of Chromomethylase Domains to H3K9me2-Containing Nucleosomes Directs DNA Methylation in Plants. Cell. 2012 Sep 28;151(1):167-80. doi: 10.1016/j.cell.2012.07.034. PMID:23021223 doi:http://dx.doi.org/10.1016/j.cell.2012.07.034
|
