Oxidoreductases;
Acting on CH or CH2 groups;
With an iron-sulfur protein as acceptor
BRITE hierarchy

3-methylbut-3-en-1-yl-diphosphate:ferredoxin oxidoreductase

(1) 3-methylbut-3-en-1-yl diphosphate + 2 oxidized ferredoxin [iron-sulfur] cluster + H2O = (E)-4-hydroxy-3-methylbut-2-en-1-yl diphosphate + 2 reduced ferredoxin [iron-sulfur] cluster + 2 H+ [RN:R05884];
(2) prenyl diphosphate + 2 oxidized ferredoxin [iron-sulfur] cluster + H2O = (E)-4-hydroxy-3-methylbut-2-en-1-yl diphosphate + 2 reduced ferredoxin [iron-sulfur] cluster + 2 H+ [RN:R08210]

R05884 R08210
Reaction

3-methylbut-3-en-1-yl diphosphate [CPD:C00129];
oxidized ferredoxin [iron-sulfur] cluster [CPD:C00139];
H2O [CPD:C00001];
prenyl diphosphate [CPD:C00235]

An iron-sulfur protein that contains an unusual [4Fe-4S] cluster [5,6]. This enzyme forms a system with a ferredoxin or a flavodoxin and an NAD(P)H-dependent reductase. This is the last enzyme in the non-mevalonate pathway for isoprenoid biosynthesis. This pathway, also known as the 1-deoxy-D-xylulose 5-phosphate (DOXP) or as the 2-C-methyl-D-erythritol-4-phosphate (MEP) pathway, is found in most bacteria and in plant chloroplasts. The enzyme acts in the reverse direction, producing a 5:1 mixture of 3-methylbut-3-en-1-yl diphosphate and prenyl diphosphate.

EC 1.17.7.4 created 2003 as EC 1.17.1.2, modified 2009, transferred 2016 to EC 1.17.7.4