Recognition of histone H3 lysine-4 methylation by the double tudor domain of JMJD2A

Huang, Y., Fang, J., Bedford, M. T., Zhang, Y., Xu, R. M. (May 2006) Recognition of histone H3 lysine-4 methylation by the double tudor domain of JMJD2A. Science, 312 (5774). pp. 748-51. ISSN 1095-9203 (Electronic)

DOI: 10.1126/science.1125162


Biological responses to histone methylation critically depend on the faithful readout and transduction of the methyl-lysine signal by "effector" proteins, yet our understanding of methyl-lysine recognition has so far been limited to the study of histone binding by chromodomain and WD40-repeat proteins. The double tudor domain of JMJD2A, a Jmjc domain-containing histone demethylase, binds methylated histone H3-K4 and H4-K20. We found that the double tudor domain has an interdigitated structure, and the unusual fold is required for its ability to bind methylated histone tails. The cocrystal structure of the JMJD2A double tudor domain with a trimethylated H3-K4 peptide reveals that the trimethyl-K4 is bound in a cage of three aromatic residues, two of which are from the tudor-2 motif, whereas the binding specificity is determined by side-chain interactions involving amino acids from the tudor-1 motif. Our study provides mechanistic insights into recognition of methylated histone tails by tudor domains and reveals the structural intricacy of methyl-lysine recognition by two closely spaced effector domains.

Item Type: Paper
Uncontrolled Keywords: Amino Acid Motifs Amino Acid Sequence Binding Sites Crystallography X-Ray DNA-Binding Proteins chemistry genetics metabolism Electrostatics Histones chemistry/ metabolism Humans Hydrogen Bonding Lysine metabolism Methylation Models Molecular Molecular Sequence Data Mutation Protein Binding Protein Conformation Protein Folding Protein Structure Tertiary Transcription Factors chemistry genetics metabolism
Subjects: bioinformatics > genomics and proteomics > genetics & nucleic acid processing > protein structure, function, modification > protein methylation
CSHL Authors:
Communities: CSHL labs > Xu lab
Depositing User: CSHL Librarian
Date: 5 May 2006
Date Deposited: 14 Dec 2011 15:03
Last Modified: 18 Apr 2018 19:08
Related URLs:

Actions (login required)

Administrator's edit/view item Administrator's edit/view item
CSHL HomeAbout CSHLResearchEducationNews & FeaturesCampus & Public EventsCareersGiving