Ribitol 2-dehydrogenase

In enzymology, a ribitol 2-dehydrogenase (EC 1.1.1.56) is an enzyme that catalyzes the chemical reaction

ribitol + NAD⁺ ${\displaystyle \rightleftharpoons }$ D-ribulose + NADH + H⁺

ribitol 2-dehydrogenase
Identifiers
EC no.	1.1.1.56
CAS no.	9014-23-7
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 ribitol and NAD⁺, whereas its 3 products are D-ribulose, NADH, and H⁺.

This enzyme participates in pentose and glucuronate interconversions.

Nomenclature

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 ribitol:NAD⁺ 2-oxidoreductase. Other names in common use include adonitol dehydrogenase, ribitol dehydrogenase A (wild type), ribitol dehydrogenase B (mutant enzyme with different properties), and ribitol dehydrogenase D (mutant enzyme with different properties).