Function and Biology

Structure of DNMT3A (R882H) in complex with CGT DNA

Source organism: Homo sapiens
Biochemical function: methyltransferase activity
Biological process: not assigned
Cellular component: not assigned

EC 2.1.1.37: DNA (cytosine-5-)-methyltransferase

Reaction catalysed:
S-adenosyl-L-methionine + DNA = S-adenosyl-L-homocysteine + DNA containing 5-methylcytosine
Systematic name:
S-adenosyl-L-methionine:DNA (cytosine-5-)-methyltransferase
Alternative Name(s):
  • Cytosine 5-methyltransferase
  • Cytosine DNA methylase
  • Cytosine DNA methyltransferase
  • Cytosine-specific DNA methyltransferase
  • DNA 5-cytosine methylase
  • DNA cytosine C(5) methylase
  • DNA cytosine c(5) methylase
  • DNA cytosine methylase
  • DNA methylase
  • DNA methyltransferase
  • DNA transmethylase
  • DNA-cytosine 5-methylase
  • DNA-cytosine methyltransferase
  • Deoxyribonucleate methylase
  • Deoxyribonucleate methyltransferase
  • Deoxyribonucleic (cytosine-5-)-methyltransferase
  • Deoxyribonucleic acid (cytosine-5-)-methyltransferase
  • Deoxyribonucleic acid methylase
  • Deoxyribonucleic acid methyltransferase
  • Deoxyribonucleic acid modification methylase
  • Deoxyribonucleic methylase
  • EcoRI methylase
  • HpaII methylase
  • HpaII' methylase
  • M.BsuRIa
  • M.BsuRIb
  • Methylphosphotriester-DNA methyltransferase
  • Modification methylase
  • Restriction-modification system
  • Site-specific DNA-methyltransferase (cytosine-specific)
  • Typ II DNA methylase
  • Type II DNA methylase

GO terms

Biochemical function:
Biological process:
  • not assigned
Cellular component:
  • not assigned

Sequence family

Pfam Protein family (Pfam)
PF00145
Domain description: C-5 cytosine-specific DNA methylase
Occurring in:
  1. DNA (cytosine-5)-methyltransferase 3A
The deposited structure of PDB entry 6w8d contains 2 copies of Pfam domain PF00145 (C-5 cytosine-specific DNA methylase) in DNA (cytosine-5)-methyltransferase 3A. Showing 1 copy in chain C [auth D].

InterPro InterPro annotations
IPR029063
Domain description: S-adenosyl-L-methionine-dependent methyltransferase superfamily
Occurring in:
  1. DNA (cytosine-5)-methyltransferase 3A
  2. DNA (cytosine-5)-methyltransferase 3-like
IPR001525
Domain description: C-5 cytosine methyltransferase
Occurring in:
  1. DNA (cytosine-5)-methyltransferase 3A
IPR018117
Domain description: DNA methylase, C-5 cytosine-specific, active site
Occurring in:
  1. DNA (cytosine-5)-methyltransferase 3A