1N3J

Structure and Substrate of a Histone H3 Lysine Methyltransferase from Paramecium Bursaria Chlorella Virus 1


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 200 
  • Conformers Submitted: 
  • Selection Criteria: mimized average structure 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

A dimeric viral SET domain methyltransferase specific to Lys27 of histone H3.

Manzur, K.L.Farooq, A.Zeng, L.Plotnikova, O.Koch, A.W.SachchidanandZhou, M.-M.

(2003) Nat Struct Biol 10: 187-196

  • DOI: 10.1038/nsb898
  • Primary Citation of Related Structures:  
    1N3J

  • PubMed Abstract: 
  • Site-specific lysine methylation of histones by SET domains is a hallmark for epigenetic control of gene transcription in eukaryotic organisms. Here we report that a SET domain protein from Paramecium bursaria chlorella virus can specifically di-methylate Lys27 in histone H3, a modification implicated in gene silencing ...

    Site-specific lysine methylation of histones by SET domains is a hallmark for epigenetic control of gene transcription in eukaryotic organisms. Here we report that a SET domain protein from Paramecium bursaria chlorella virus can specifically di-methylate Lys27 in histone H3, a modification implicated in gene silencing. The solution structure of the viral SET domain reveals a butterfly-shaped head-to-head symmetric dimer different from other known protein methyltransferases. Each subunit consists of a Greek-key antiparallel beta-barrel and a three-stranded open-faced sandwich that mediates the dimer interface. Cofactor S-adenosyl-L-methionine (SAM) binds at the opening of the beta-barrel, and amino acids C-terminal to Lys27 in H3 and in the flexible C-terminal tail of the enzyme confer the specificity of this viral histone methyltransferase.


    Organizational Affiliation

    Structural Biology Program, Department of Physiology and Biophysics, Mount Sinai School of Medicine, New York University, One Gustave L. Levy Place, New York, New York 10029, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Histone H3 Lysine MethyltransferaseA, B119Paramecium bursaria Chlorella virus 1Mutation(s): 0 
Gene Names: A612L
UniProt
Find proteins for O41094 (Paramecium bursaria Chlorella virus 1)
Explore O41094 
Go to UniProtKB:  O41094
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 200 
  • Conformers Submitted: 
  • Selection Criteria: mimized average structure 
  • OLDERADO: 1N3J Olderado

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2003-01-28
    Type: Initial release
  • Version 1.1: 2008-04-28
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance