ID 1.3.7.11 DE 2,3-bis-O-geranylgeranyl-sn-glycero-phospholipid reductase. AN 2,3-bis-O-geranylgeranyl-sn-glycerol 1-phosphate reductase (donor). CA a 2,3-bis-O-phytanyl-sn-glycerol 1-phospholipid + 8 oxidized 2[4Fe-4S]- CA [ferredoxin] = a 2,3-bis-O-(geranylgeranyl)-sn-glycerol 1-phospholipid + CA 16 H(+) + 8 reduced 2[4Fe-4S]-[ferredoxin]. CC -!- The enzyme is involved in the biosynthesis of archaeal membrane CC lipids. CC -!- It catalyzes the reduction of all 8 double bonds in 2,3-bis-O- CC geranylgeranyl-sn-glycero-phospholipids and all 4 double bonds in CC 3-O-geranylgeranyl-sn-glycerol phospholipids with comparable CC activity. CC -!- Unlike EC 1.3.1.101, this enzyme shows no activity with NADPH, CC and requires a dedicated ferredoxin. CC -!- Formerly EC 1.3.99.34. DR Q12YW2, GGR1_METBU ; Q12WF0, GGR2_METBU ; D4GSC3, GGR_HALVD ; DR Q8TQQ6, GGR_METAC ; Q0W349, GGR_METAR ; A7I9P9, GGR_METB6 ; DR Q465Z7, GGR_METBF ; Q2FUA4, GGR_METHJ ; A2SQK1, GGR_METLZ ; DR Q8PU50, GGR_METMA ; A3CST9, GGR_METMJ ; B8GGQ9, GGR_METPE ; DR A0B573, GGR_METTP ; //