CATH Classification

Domain Context

CATH Clusters

Superfamily 3.40.50.1100
Functional Family

Enzyme Information

4.2.1.22
Cystathionine beta-synthase.
based on mapping to UniProt P35520
L-serine + L-homocysteine = L-cystathionine + H(2)O.
-!- A multifunctional enzyme: catalyzes beta-replacement reaction between L-serine, L-cysteine, cysteine thioethers or some other beta- substituted alpha-L-amino acids and a variety of mercaptans. -!- Formerly EC 4.2.1.21.

UniProtKB Entries (1)

P35520
CBS_HUMAN
Homo sapiens
Cystathionine beta-synthase

PDB Structure

PDB 1M54
External Links
Method X-RAY DIFFRACTION
Organism Escherichia
Primary Citation
HUMAN CYSTATHIONINE BETA-SYNTHASE IS A HEME SENSOR PROTEIN. EVIDENCE THAT THE REDOX SENSOR IS HEME AND NOT THE VICINAL CYSTEINES IN THE CXXC MOTIF SEEN IN THE CRYSTAL STRUCTURE OF THE TRUNCATED ENZYME
Taoka, S., Lepore, B.W., Kabil, O., Ojha, S., Ringe, D., Banerjee, R.
BIOCHEMISTRY