X-ray diffraction
1.71Å resolution

1.7 A resolution structure of human cystathionine beta-synthase regulatory domain (del 516-525) in complex with SAM


Function and Biology Details

Reaction catalysed:
L-serine + L-homocysteine = L-cystathionine + H(2)O
Biochemical function:
  • not assigned
Biological process:
  • not assigned
Cellular component:
  • not assigned
Sequence domain:

Structure analysis Details

Assembly composition:
homo dimer (preferred)
Entry contents:
1 distinct polypeptide molecule
Cystathionine beta-synthase Chains: A, B
Molecule details ›
Chains: A, B
Length: 155 amino acids
Theoretical weight: 17.45 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli BL21(DE3)
  • Canonical: P35520 (Residues: 406-547; Coverage: 24%)
Gene name: CBS
Sequence domains: CBS domain
Structure domains: CBS-domain

Ligands and Environments

Cofactor: Ligand SAM 2 x SAM
1 bound ligand:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: DIAMOND BEAMLINE I02
Spacegroup: P212121
Unit cell:
a: 39.85Å b: 78.65Å c: 90.8Å
α: 90° β: 90° γ: 90°
R R work R free
0.161 0.159 0.199
Expression system: Escherichia coli BL21(DE3)