Histidinol dehydrogenase

Histidinol dehydrogenase
Identifiers
EC no.1.1.1.23
CAS no.9028-27-7
Databases
IntEnzIntEnz view
BRENDABRENDA entry
ExPASyNiceZyme view
KEGGKEGG entry
MetaCycmetabolic pathway
PRIAMprofile
PDB structuresRCSB PDB PDBe PDBsum
Gene OntologyAmiGO / QuickGO
Search
PMCarticles
PubMedarticles
NCBIproteins
Histidinol dehydrogenase
the l-histidinol dehydrogenase (hisd) structure implicates domain swapping and gene duplication.
Identifiers
SymbolHistidinol_dh
PfamPF00815
Pfam clanCL0099
InterProIPR012131
PROSITEPDOC00534
SCOP21k75 / SCOPe / SUPFAM
Available protein structures:
PDB  IPR012131 PF00815 (ECOD; PDBsum)  
AlphaFold

In enzymology, histidinol dehydrogenase (HIS4) (HDH) (EC 1.1.1.23) is an enzyme that catalyzes the chemical reaction

L-histidinol
+ 2 NAD+
 
 
 
2 H+
 
2 H+
 
+ 2 NADH
 

The two substrates of this enzyme are L-histidinol and oxidised nicotinamide adenine dinucleotide (NAD+). Its products are L-histidine, reduced NADH, and two protons.

This enzyme belongs to the family of oxidoreductases, specifically those acting on the CH-OH group of donor with NAD+ or NADP+ as acceptor. The systematic name of this enzyme class is L-histidinol:NAD+ oxidoreductase. This enzyme is also called L-histidinol dehydrogenase.