label: S-adenosyl-L-methionine:S-adenosyl-L-homocysteine antiporter activity
label_lc: s-adenosyl-l-methionine:s-adenosyl-l-homocysteine antiporter activity
description: "Catalysis of the reaction: S-adenosyl-L-homocysteine(out) + S-adenosyl-L-methionine(in) = S-adenosyl-L-homocysteine(in) + S-adenosyl-L-methionine(out)."