an S-substituted L-cysteine + H2O => a thiol + pyruvate + NH4(+)
an s-substituted l-cysteine + h2o => a thiol + pyruvate + nh4(+)
an S-substituted L-cysteine + H2O => a thiol + pyruvate + NH4(+)
an s-substituted l-cysteine + h2o => a thiol + pyruvate + nh4(+)