› 2o2k

X-ray diffraction
1.6Å resolution

Crystal Structure of the Activation Domain of Human Methionine Synthase Isoform/Mutant D963E/K1071N

Released:
DOI: 10.2210/pdb2o2k/pdb
PDB entry 2o2k coloured by chain, front view.
PDB entry 2o2k coloured by chain, side view.
PDB entry 2o2k coloured by chain, top view.
Source organism: Homo sapiens
Primary publication:
Crystal structure and solution characterization of the activation domain of human methionine synthase.
Wolthers KR, Toogood HS, Jowitt TA, Marshall KR, Leys D, Scrutton NS
FEBS J 274 738-50 (2007)
PMID: 17288554

Function and Biology Details

Reaction catalysed: 
5-methyltetrahydrofolate + L-homocysteine = tetrahydrofolate + L-methionine
Biochemical function:
Biological process:
Cellular component:
  • not assigned
Sequence domains:

Structure analysis Details

Assembly composition:
homo dimer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-189251 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Methionine synthase Chains: A, B
Molecule details ›
Chains: A, B
Length: 355 amino acids
Theoretical weight: 40.53 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: Q99707 (Residues: 924-1265; Coverage: 27%)
Gene name: MTR
Sequence domains: Vitamin B12 dependent methionine synthase, activation domain
Structure domains:

Ligands and Environments

No bound ligands
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ESRF BEAMLINE ID14-3
Spacegroup: P212121
Unit cell:
a: 77.854Å b: 90.051Å c: 123.006Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.211 0.209 0.248
Expression system: Escherichia coli BL21(DE3)

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Citations

1 review citation

Cobalamin-dependent and cobamide-dependent methyltransferases.
Matthews et al. (2008)
6 other articles

5 mentions without citation

Progress in super long loop prediction.
Zhao et al. (2011)
4 more