VTE1

Tocopherol cyclase, chloroplastic

488 amino acids

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.

54.721 kDa

MEIRSLIVSMNPNLSSFELSRPVSPLTRSLVPFRSTKLVPRSISRVSASISTPNSETDKISVKPVYVPTSPNRELRTPHSGYHFDGTPRKFFEGWYFRVSIPEKRESFCFMYSVENPAFRQSLSPLEVALYGPRFTGVGAQILGANDKYLCQYEQDSHNFWGDRHELVLGNTFSAVPGAKAPNKEVPPEEFNRRVSEGFQATPFWHQGHICDDGRTDYAETVKSARWEYSTRPVYGWGDVGAKQKSTAGWPAAFPVFEPHWQICMAGGLSTGWIEWGGERFEFRDAPSYSEKNWGGGFPRKWFWVQCNVFEGATGEVALTAGGGLRQLPGLTETYENAALVCVHYDGKMYEFVPWNGVVRWEMSPWGYWYITAENENHVVELEARTNEAGTPLRAPTTEVGLATACRDSCYGELKLQIWERLYDGSKGKVILETKSSMAAVEIGGGPWFGTWKGDTSNTPELLKQALQVPLDLESALGLVPFFKPPGL

VTE1

Probable tocopherol cyclase, chloroplastic

470 amino acids

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 (By similarity).

52.195 kDa

MDLAAAAVAVSFPRPAPPPRRCAPRRHRRALAPRAASSSPSPSTAVAAPVYAPTPRDRALRTPHSGYHYDGTARPFFEGWYFKVSIPECRQSFCFMYSVENPLFRDGMSDLDRVIHGSRFTGVGAQILGADDKYICQFTEKSNNFWGSRHELMLGNTFIPNNGSTPPEGEVPPQEFSSRVLEGFQVTPIWHQGFIRDDGRSKYVPNVQTARWEYSTRPVYGWGDVTSKQKSTAGWLAAFPFFEPHWQICMAGGLSTGWIEWDGERFEFENAPSYSEKNWGAGFPRKWYWVQCNVFSGASGEVALTAAGGLRKIGLGETYESPSLIGIHYEGKFYEFVPWTGTVSWDIAPWGHWKLSGENKNHLVEIEATTKEPGTALRAPTMEAGLVPACKDTCYGDLRLQMWEKRNDGGKGKMILDATSNMAALEVGGGPWFNGWKGTTVSNEIVNNVVGTQVDVESLFPIPFLKPPGL