Aliphatic nitrilase

In enzymology, an aliphatic nitrilase also known as aliphatic nitrile aminohydrolase (EC 3.5.5.7) is an enzyme that catalyzes the hydrolysis of nitriles to carboxylic acids:

R-CN + 2 H₂O ${\displaystyle \rightleftharpoons }$ R-COOH + NH₃

aliphatic nitrilase
Identifiers
EC no.	3.5.5.7
CAS no.	9024-90-2
Databases
IntEnz	IntEnz view
BRENDA	BRENDA entry
ExPASy	NiceZyme view
KEGG	KEGG entry
MetaCyc	metabolic pathway
PRIAM	profile
PDB structures	RCSB PDB PDBe PDBsum
Gene Ontology	AmiGO / QuickGO
Search PMC articles PubMed articles NCBI proteins

Thus, the two substrates of this enzyme are an aliphatic nitrile (R-CN) and H₂O, whereas its two products are a carboxylic acid (R-COOH) and NH₃.

This enzyme belongs to the family of hydrolases, those acting on carbon-nitrogen bonds other than peptide bonds, specifically in nitriles. This enzyme participates in styrene degradation.