NCBI Accession #
NP_001105015.1
NCBI GenBank Nucleotide #
NM_001111545.1
NCBI Official Full Name
probable tocopherol cyclase, chloroplastic
NCBI Official Symbol
sxd1
NCBI Official Synonym Symbols
sdx1; GRMZM2G009785
NCBI Protein Information
probable tocopherol cyclase, chloroplastic
UniProt Protein Name
Probable tocopherol cyclase, chloroplastic
UniProt Synonym Protein Names
Sucrose export defective 1
UniProt Primary Accession #
Q94FY8
UniProt Related Accession #
Q94FY8
UniProt Comments
Involved in the synthesis of both tocopherols and tocotrienols (vitamin E), which presumably protect photosynthetic complexes from oxidative stress. Catalyzes the conversion of 2-methyl-6-phytyl-1,4-hydroquinone and 2,3-dimethyl-5-phytyl-1,4-hydroquinone (DMPQ) to delta- and gamma-tocopherol respectively. Converts also 2,3-dimethyl-5-geranylgeranyl-1,4-hydroquinone (DMGQ) to gamma-tocotrienol .