S-[(2R)-succino]-L-cysteine => fumarate + L-cysteine
s-[(2r)-succino]-l-cysteine => fumarate + l-cysteine
S-[(2R)-succino]-L-cysteine => fumarate + L-cysteine
s-[(2r)-succino]-l-cysteine => fumarate + l-cysteine