ID 1.14.19.46 DE sn-1 linoleoyl-lipid 6-desaturase. CA a 1-[(9Z,12Z)-octadecdienoyl]-2-acyl-glycerolipid + 2 H(+) + O2 + CA 2 reduced [2Fe-2S]-[ferredoxin] = a 1-[(6Z,9Z,12Z)-octadectrienoyl]-2- CA acyl-glycerolipid + 2 H2O + 2 oxidized [2Fe-2S]-[ferredoxin]. CC -!- The enzyme, characterized from cyanobacteria, introduces a cis double CC bond at carbon 6 of linoleoyl groups (18:2) attached to the sn-1 CC position of glycerolipids. CC -!- The enzyme is a front-end desaturase, introducing the new double bond CC between a pre-existing double bond and the carboxyl-end of the fatty CC acid. CC -!- It is non-specific with respect to the polar head group of the CC glycerolipid. DR Q54795, DESD_ARTPT ; Q08871, DESD_SYNY3 ; //