L-gulonolactone oxidase

L-Gulonolactone oxidase (EC 1.1.3.8) is an enzyme that produces vitamin C, but is non-functional in Haplorrhini (including humans), in some bats, and in guinea pigs. It catalyzes the reaction of L-gulono-1,4-lactone with oxygen to form L-xylo-hex-3-gulonolactone (2-keto-gulono-γ-lactone) and hydrogen peroxide. It uses FAD as a cofactor. The L-xylo-hex-3-gulonolactone then converts to ascorbic acid spontaneously, without enzymatic action.

GULOP
Identifiers
AliasesGULOP, GULO, SCURVY, gulonolactone (L-) oxidase, pseudogene
External IDsMGI: 1353434 GeneCards: GULOP
Orthologs
SpeciesHumanMouse
Entrez

2989

268756

Ensembl

ENSG00000234770

ENSMUSG00000034450

UniProt

n
a

P58710

RefSeq (mRNA)

n/a

NM_178747

RefSeq (protein)

n/a

NP_848862

Location (UCSC)n/aChr 14: 66.22 – 66.25 Mb
PubMed search
Wikidata
View/Edit HumanView/Edit Mouse
L-gulonolactone oxidase
Identifiers
EC no.1.1.3.8
CAS no.9028-78-8
Databases
IntEnzIntEnz view
BRENDABRENDA entry
ExPASyNiceZyme view
KEGGKEGG entry
MetaCycmetabolic pathway
PRIAMprofile
PDB structuresRCSB PDB PDBe PDBsum
Gene OntologyAmiGO / QuickGO
Search
PMCarticles
PubMedarticles
NCBIproteins
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