label: a 7(1)-hydroxybacteriochlorophyllide c + S-adenosyl-L-methionine + H2O = a 7(1),7(1)-dihydroxybacteriochlorophyllide c + 5'-deoxyadenosine + L-methionine + H(+)
label_lc: a 7(1)-hydroxybacteriochlorophyllide c + s-adenosyl-l-methionine + h2o = a 7(1),7(1)-dihydroxybacteriochlorophyllide c + 5'-deoxyadenosine + l-methionine + h(+)