label: 3,8-divinyl protochlorophyllide a + 5'-deoxyadenosine + L-methionine + 2 H(+) => Mg-13(1)-oxoprotoporphyrin 13-monomethyl ester + S-adenosyl-L-methionine
label_lc: 3,8-divinyl protochlorophyllide a + 5'-deoxyadenosine + l-methionine + 2 h(+) => mg-13(1)-oxoprotoporphyrin 13-monomethyl ester + s-adenosyl-l-methionine