PDBe 4qbs

X-ray diffraction
1.8Å resolution

Crystal structure of DNMT3a ADD domain E545R mutant bound to H3T3ph peptide

Released:
Source organism: Homo sapiens
Entry authors: Wang H, Li H

Function and Biology Details

Reaction catalysed:
S-adenosyl-L-methionine + DNA = S-adenosyl-L-homocysteine + DNA containing 5-methylcytosine
Biochemical function:
Biological process:
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
hetero dimer (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
DNA (cytosine-5)-methyltransferase 3A Chain: A
Molecule details ›
Chain: A
Length: 138 amino acids
Theoretical weight: 15.71 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
UniProt:
  • Canonical: NEW Q9Y6K1 (Residues: 476-611; Coverage: 15%)
Gene name: DNMT3A
Histone H3.1 Chain: P
Molecule details ›
Chain: P
Length: 7 amino acids
Theoretical weight: 857 Da
Source organism: Homo sapiens
Expression system: Not provided
UniProt:
  • Canonical: NEW P68431 (Residues: 2-8; Coverage: 5%)
Gene names: H3FA, H3FB, H3FC, H3FD, H3FF, H3FH, H3FI, H3FJ, H3FK, H3FL, HIST1H3A, HIST1H3B, HIST1H3C, HIST1H3D, HIST1H3E, HIST1H3F, HIST1H3G, HIST1H3H, HIST1H3I, HIST1H3J

Ligands and Environments

2 bound ligands:

1 modified residue:

Experiments and Validation Details

Entry percentile scores
X-ray source: SSRF BEAMLINE BL17U
Spacegroup: P3121
Unit cell:
a: 57.286Å b: 57.286Å c: 71.923Å
α: 90° β: 90° γ: 120°
R-values:
R R work R free
0.168 0.167 0.203
Expression systems:
  • Escherichia coli
  • Not provided