ID   4.4.1.25
DE   L-cysteate sulfo-lyase.
CA   H2O + L-cysteate = H(+) + NH4(+) + pyruvate + sulfite.
CC   -!- The enzyme cleaves a carbon-sulfur bond, releasing bisulfite and an
CC       unstable enamine product that tautomerizes to an imine form, which
CC       undergoes a hydrolytic deamination to form pyruvate and ammonia.
CC   -!- The latter reaction, which can occur spontaneously, can also be
CC       catalyzed by EC 3.5.99.10.
CC   -!- D-Cysteine can also act as a substrate, but more slowly.
CC   -!- It is converted into pyruvate, sulfide and ammonia.
CC   -!- The inducible enzyme from Silicibacter pomeroyi DSS-3 forms part of
CC       the cysteate-degradation pathway.
DR   A3SQG3, CUYA_ROSNI ;  Q5LL69, CUYA_RUEPO ;
//