NCBI Accession #
NP_001031715.1
NCBI GenBank Nucleotide #
NM_001036638.2
NCBI Official Full Name
beta-carotene 3-hydroxylase 1
NCBI Official Symbol
BETA-OHASE 1
NCBI Official Synonym Symbols
B1; BCH1; BETA CAROTENOID HYDROXYLASE 1; beta-hydroxylase 1; BETA-OHASE 1; chy1
NCBI Protein Information
beta-carotene 3-hydroxylase 1
NCBI Summary
Converts beta-carotene to zeaxanthin via cryptoxanthin.
UniProt Gene Name
BETA-OHASE 1
UniProt Synonym Gene Names
B1; CHY1; AtB1
UniProt Protein Name
Beta-carotene 3-hydroxylase 1, chloroplastic
UniProt Entry Name
BCH1_ARATH
UniProt Primary Accession #
Q9SZZ8
UniProt Secondary Accession #
Q96297; F4JTC5
UniProt Related Accession #
Q9SZZ8
UniProt Comments
Nonheme diiron monooxygenase involved in the biosynthesis of xanthophylls. Specific for beta-ring hydroxylations of beta-carotene. Has also a low activity toward the beta- and epsilon-rings of alpha-carotene. No activity with acyclic carotenoids such as lycopene and neurosporene. Uses ferredoxin as an electron donor (Probable).