6c1t: Difference between revisions

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'''Unreleased structure'''


The entry 6c1t is ON HOLD  until Feb 14 2019
==MBD2 in complex with a partially methylated DNA==
 
<StructureSection load='6c1t' size='340' side='right' caption='[[6c1t]], [[Resolution|resolution]] 1.84&Aring;' scene=''>
Authors: Lei, M., Tempel, W., Arrowsmith, C.H., Bountra, C., Edwards, A.M., Min, J., Structural Genomics Consortium (SGC)
== Structural highlights ==
 
<table><tr><td colspan='2'>[[6c1t]] is a 4 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6C1T OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6C1T FirstGlance]. <br>
Description: MBD2 in complex with a partially methylated DNA
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene>, <scene name='pdbligand=UNX:UNKNOWN+ATOM+OR+ION'>UNX</scene></td></tr>
[[Category: Unreleased Structures]]
<tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=5CM:5-METHYL-2-DEOXY-CYTIDINE-5-MONOPHOSPHATE'>5CM</scene></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=6c1t FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6c1t OCA], [http://pdbe.org/6c1t PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=6c1t RCSB], [http://www.ebi.ac.uk/pdbsum/6c1t PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=6c1t ProSAT]</span></td></tr>
</table>
== Function ==
[[http://www.uniprot.org/uniprot/MBD2_HUMAN MBD2_HUMAN]] Binds CpG islands in promoters where the DNA is methylated at position 5 of cytosine within CpG dinucleotides. Binds hemimethylated DNA as well. Recruits histone deacetylases and DNA methyltransferases. Acts as transcriptional repressor and plays a role in gene silencing. Functions as a scaffold protein, targeting GATAD2A and GATAD2B to chromatin to promote repression. May enhance the activation of some unmethylated cAMP-responsive promoters.<ref>PMID:10471499</ref> <ref>PMID:10947852</ref> <ref>PMID:12665568</ref> <ref>PMID:16415179</ref> <ref>PMID:24307175</ref> <ref>PMID:9774669</ref> 
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Arrowsmith, C H]]
[[Category: Bountra, C]]
[[Category: Edwards, A M]]
[[Category: Lei, M]]
[[Category: Min, J]]
[[Category: Min, J]]
[[Category: Edwards, A.M]]
[[Category: Structural genomic]]
[[Category: Arrowsmith, C.H]]
[[Category: Structural Genomics Consortium (Sgc)]]
[[Category: Lei, M]]
[[Category: Bountra, C]]
[[Category: Tempel, W]]
[[Category: Tempel, W]]
[[Category: Dna binding protein-dna complex]]
[[Category: Dna-binding]]
[[Category: Mbd]]
[[Category: Sgc]]

Revision as of 09:34, 15 February 2018

MBD2 in complex with a partially methylated DNAMBD2 in complex with a partially methylated DNA

Structural highlights

6c1t is a 4 chain structure. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:, ,
NonStd Res:
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[MBD2_HUMAN] Binds CpG islands in promoters where the DNA is methylated at position 5 of cytosine within CpG dinucleotides. Binds hemimethylated DNA as well. Recruits histone deacetylases and DNA methyltransferases. Acts as transcriptional repressor and plays a role in gene silencing. Functions as a scaffold protein, targeting GATAD2A and GATAD2B to chromatin to promote repression. May enhance the activation of some unmethylated cAMP-responsive promoters.[1] [2] [3] [4] [5] [6]

References

  1. ↑ Ng HH, Zhang Y, Hendrich B, Johnson CA, Turner BM, Erdjument-Bromage H, Tempst P, Reinberg D, Bird A. MBD2 is a transcriptional repressor belonging to the MeCP1 histone deacetylase complex. Nat Genet. 1999 Sep;23(1):58-61. PMID:10471499 doi:http://dx.doi.org/10.1038/12659
  2. ↑ Tatematsu KI, Yamazaki T, Ishikawa F. MBD2-MBD3 complex binds to hemi-methylated DNA and forms a complex containing DNMT1 at the replication foci in late S phase. Genes Cells. 2000 Aug;5(8):677-88. PMID:10947852
  3. ↑ Fujita H, Fujii R, Aratani S, Amano T, Fukamizu A, Nakajima T. Antithetic effects of MBD2a on gene regulation. Mol Cell Biol. 2003 Apr;23(8):2645-57. PMID:12665568
  4. ↑ Brackertz M, Gong Z, Leers J, Renkawitz R. p66alpha and p66beta of the Mi-2/NuRD complex mediate MBD2 and histone interaction. Nucleic Acids Res. 2006 Jan 13;34(2):397-406. Print 2006. PMID:16415179 doi:http://dx.doi.org/10.1093/nar/gkj437
  5. ↑ Cramer JM, Scarsdale JN, Walavalkar NM, Buchwald WA, Ginder GD, Williams DC Jr. Probing the Dynamic Distribution of Bound States for Methyl-cytosine Binding Domains on DNA. J Biol Chem. 2013 Dec 4. PMID:24307175 doi:http://dx.doi.org/10.1074/jbc.M113.512236
  6. ↑ Hendrich B, Bird A. Identification and characterization of a family of mammalian methyl-CpG binding proteins. Mol Cell Biol. 1998 Nov;18(11):6538-47. PMID:9774669

6c1t, resolution 1.84Å

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