ID 4.1.1.96 DE carboxynorspermidine decarboxylase. AN carboxyspermidine decarboxylase. CA (1) carboxynorspermidine + H(+) = CO2 + norspermidine. CA (2) carboxyspermidine + H(+) = CO2 + spermidine. CC -!- Part of a bacterial polyamine biosynthesis pathway. CC -!- The enzyme is essential for biofilm formation in the bacterium Vibrio CC cholerae. CC -!- The enzyme from Campylobacter jejuni only produces spermidine in vivo CC even though it shows activity with carboxynorspermidine in vitro. DR A8FNH9, NSPC_CAMJ8 ; Q5QCP2, NSPC_HERAR ; Q56575, NSPC_VIBAL ; DR Q9KRL4, NSPC_VIBCH ; C6YCI2, NSPC_VIBCO ; Q8D8D2, NSPC_VIBVU ; //