CATH Classification

Domain Context

CATH Clusters

Superfamily alpha/beta hydrolase
Functional Family (S)-hydroxynitrile lyase

Enzyme Information

4.1.2.47
(S)-hydroxynitrile lyase.
based on mapping to UniProt P52705
(1) An aliphatic (S)-hydroxynitrile = cyanide + an aliphatic aldehyde or ketone. (2) An aromatic (S)-hydroxynitrile = cyanide + an aromatic aldehyde.
-!- Hydroxynitrile lyases catalyzes the the cleavage of hydroxynitriles into cyanide and the corresponding aldehyde or ketone. -!- In nature the liberation of cyanide serves as a defense mechanism against herbivores and microbial attack in plants. -!- In vitro the enzymes from Manihot esculenta and Hevea brasiliensis accept a broad range of aliphatic and aromatic carbonyl compounds as substrates and catalyze the formation of (S)-hydroxynitriles. -!- Formerly EC 4.1.2.37 and EC 4.1.2.39.

UniProtKB Entries (1)

P52705
HNL_MANES
Manihot esculenta
(S)-hydroxynitrile lyase

PDB Structure

PDB 1DWP
External Links
Method X-RAY DIFFRACTION
Organism
Primary Citation
Structure of Hydroxynitrile Lyase from Manihot Esculenta in Complex with Substrates Acetone and Chloroacetone: Implications for the Mechanism of Cyanogenesis
Lauble, H., Forster, S., Miehlich, B., Wajant, H., Effenberger, F.
Acta Crystallogr.,Sect.D