ENTRY       EC 2.1.1.16
NAME        Methylene-fatty-acyl-phospholipid synthase
            Unsaturated-phospholipid methyltransferase
CLASS       Transferases
            Transferring one-carbon groups
            Methyltransferases
SYSNAME     S-Adenosyl-L-methionine:unsaturated-phospholipid methyltransferase
            (methenylating)
REACTION    S-Adenosyl-L-methionine + Phospholipid olefinic fatty acid =
            S-Adenosyl-L-homocysteine + Phospholipid methylene fatty acid
SUBSTRATE   S-Adenosyl-L-methionine
            Phospholipid olefinic fatty acid
PRODUCT     S-Adenosyl-L-homocysteine
            Phospholipid methylene fatty acid
COMMENT     The enzyme transfers a methyl group to the 10-position
            of a delta-olefinic acyl chain in phosphatidylglycerol or
            phosphatidylinositol or, more slowly, phosphatidylethanolamine;
            subsequent proton transfer produces a 10-methylene group (cf.
            EC 2.1.1.79).
GENES       SCE: YJR073C(PEM2)
DBLINKS     University of Geneva ENZYME DATA BANK: 2.1.1.16
            WIT (What Is There) Metabolic Reconstruction: 2.1.1.16
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