Summary information and primary citation

PDB-id
3oa6; SNAP-derived features in text and JSON formats; DNAproDB
Class
DNA binding protein-DNA
Method
X-ray (2.35 Å)
Summary
Human msl3 chromodomain bound to DNA and h4k20me1 peptide
Reference
Kim D, Blus BJ, Chandra V, Huang P, Rastinejad F, Khorasanizadeh S (2010): "Corecognition of DNA and a methylated histone tail by the MSL3 chromodomain." Nat.Struct.Mol.Biol., 17, 1027-1029. doi: 10.1038/nsmb.1856.
Abstract
MSL3 resides in the MSL (male-specific lethal) complex, which upregulates transcription by spreading the histone H4 Lys16 (H4K16) acetyl mark. We discovered a DNA-dependent interaction of MSL3 chromodomain with the H4K20 monomethyl mark. The structure of a ternary complex shows that the DNA minor groove accommodates the histone H4 tail, and monomethyllysine inserts in a four-residue aromatic cage in MSL3. H4K16 acetylation antagonizes MSL3 binding, suggesting that MSL function is regulated by a combination of post-translational modifications.

Cartoon-block schematics in six views (download the tarball)

PyMOL session file Download PDB file View in 3Dmol.js