2.7.8.B11 a phosphatidylglycerol + a phosphatidylethanolamine - 2.7.8.B11 additional information the enzyme homologue ClsC1 (YmdC) uses both phosphatidylethanolamine and phoshatidylglycerol as substrates for cardiolipin synthesis with the assistance of YmdB (ClsC2), the product of a neighboring gene. Enzyme homologue ClsB may also use some phospholipid other than phosphatidylglycerol