Cysteine sulfinic acid decarboxylase (CSAD)

Catalyzes the decarboxylation of L-aspartate, 3-sulfino- L-alanine (cysteine sulfinic acid), and L-cysteate to beta- alanine, hypotaurine and taurine, respectively. The preferred substrate is 3-sulfino-L-alanine.

Does not exhibit any decarboxylation activity toward glutamate. .