7-dehydrodesmosterol + S-adenosyl-L-methionine => 5-dehydroepisterol + S-adenosyl-L-homocysteine + H(+)
7-dehydrodesmosterol + s-adenosyl-l-methionine => 5-dehydroepisterol + s-adenosyl-l-homocysteine + h(+)
7-dehydrodesmosterol + S-adenosyl-L-methionine => 5-dehydroepisterol + S-adenosyl-L-homocysteine + H(+)
7-dehydrodesmosterol + s-adenosyl-l-methionine => 5-dehydroepisterol + s-adenosyl-l-homocysteine + h(+)