(E)-4-hydroxy-3-methylbut-2-enyl-diphosphate synthase (ferredoxin) EC#: 1.17.7.1; ChemWhat Code: 1376015

Product Name (E)-4-hydroxy-3-methylbut-2-enyl-diphosphate synthase (ferredoxin)
Example Structure Example Structure of (E)-4-hydroxy-3-methylbut-2-enyl-diphosphate synthase (ferredoxin) EC#: 1.17.7.1
Synonyms 1-hydroxy-2-methyl-2-(E)-butenyl 4-diphosphate synthase, 4-hydroxy-3-methylbut-2-en-1-yl diphosphate synthase, GcpE, gcpE gene product, GcpE/IspG, IspG, IspG protein
EC Number 1.17.7.1
CAS Registry Number
Comments An iron-sulfur protein found in plant chloroplasts and cyanobacteria that contains a [4Fe-4S] cluster [1]. Forms part of an alternative non-mevalonate pathway for isoprenoid biosynthesis [3]. Bacteria have a similar enzyme that uses flavodoxin rather than ferredoxin (cf. EC 1.17.7.3). The enzyme from the plant Arabidopsis thaliana is active with photoreduced 5-deazaflavin but not with flavodoxin [1].
Cofactor iron-sulfur
History
Reactions (E)-4-hydroxy-3-methylbut-2-en-1-yl diphosphate + H(2)O + 2 oxidized ferredoxin = 2-C-methyl-D-erythritol 2,4-cyclodiphosphate + 2 reduced ferredoxin.

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