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EC 2.3.1.282 Details
EC number
2.3.1.282
Accepted name
phenolphthiocerol/phthiocerol/phthiodiolone dimycocerosyl transferase
Reaction
(1) 2 a mycocerosyl-[mycocerosic acid synthase] + a phthiocerol = a dimycocerosyl phthiocerol + 2 holo-[mycocerosic acid synthase];;(2) 2 a mycocerosyl-[mycocerosic acid synthase] + a phthiodiolone = a dimycocerosyl phthiodiolone + 2 holo-[mycocerosic acid synthase];;(3) 2 a mycocerosyl-[mycocerosic acid synthase] + a phenolphthiocerol = a dimycocerosyl phenolphthiocerol + 2 holo-[mycocerosic acid synthase];;
Other name(s)
papA5 (gene name)
Systematic name
mycocerosyl-[mycocerosic acid synthase]:phenolphthiocerol/phthiocerol/phthiodiolone dimycocerosyl transferase
Comment
The enzyme, present in certain pathogenic species of mycobacteria, catalyses the transfer of mycocerosic acids to the two hydroxyl groups at the common lipid core of phthiocerol, phthiodiolone, and phenolphthiocerol, forming dimycocerosate esters. The fatty acid precursors of mycocerosic acids are activated by EC 6.2.1.49, long-chain fatty acid adenylyltransferase FadD28, which loads them onto EC 2.3.1.111, mycocerosate synthase. That enzyme extends the precursors to form mycocerosic acids that remain attached until transferred by EC 2.3.1.282.
History
created 2019
EC Tree
2.3.1.55 created 1976, deleted 1999
2.3.1.120 created 1990, deleted 1992
2.3.1.124 created 1990, deleted 1992