X-ray diffraction
2.5Å resolution

Function and Biology Details

Reaction catalysed:
Trimethylammonioacetate + L-homocysteine = dimethylglycine + L-methionine
Biological process:
Cellular component:

Structure analysis Details

Assembly composition:
homo tetramer (preferred)
Entry contents:
1 distinct polypeptide molecule
Betaine--homocysteine S-methyltransferase 1 Chains: A, B, C, D
Molecule details ›
Chains: A, B, C, D
Length: 407 amino acids
Theoretical weight: 45.06 KDa
Source organism: Rattus norvegicus
Expression system: Escherichia coli BL21(DE3)
  • Canonical: O09171 (Residues: 1-407; Coverage: 100%)
Gene name: Bhmt
Sequence domains: Homocysteine S-methyltransferase
Structure domains: Homocysteine-binding-like domain

Ligands and Environments

2 bound ligands:

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ESRF BEAMLINE BM14
Spacegroup: P21
Unit cell:
a: 57.83Å b: 149.27Å c: 96.25Å
α: 90° β: 92.92° γ: 90°
R R work R free
0.253 0.253 0.291
Expression system: Escherichia coli BL21(DE3)