ID 3.5.3.27 DE arginine dihydrolase. CA L-arginine + 2 H2O + 2 H(+) = L-ornithine + 2 NH4(+) + CO2. CC -!- The enzyme, characterized from different cyanobacterial species, CC is highly specific to arginine and does not require a metal cofactor. CC -!- The enzyme from Nostoc is bifunctional, and also catalyzes the CC activity of EC 4.3.1.12. DR Q8YMD9, AGRE_NOSS1 ; P74535, ARGZ_SYNY3 ; //