ID 3.5.3.15 DE protein-arginine deiminase. AN PAD. CA H2O + L-arginyl-[protein] = L-citrullyl-[protein] + NH4(+). CC -!- Also acts on N-acyl-L-arginine and, more slowly, on L-arginine CC esters. DR Q9ULC6, PADI1_HUMAN; Q9Z185, PADI1_MOUSE; O88806, PADI1_RAT ; DR Q9Y2J8, PADI2_HUMAN; Q08642, PADI2_MOUSE; P20717, PADI2_RAT ; DR Q9ULW8, PADI3_HUMAN; Q9Z184, PADI3_MOUSE; P70708, PADI3_RAT ; DR O02849, PADI3_SHEEP; Q9UM07, PADI4_HUMAN; Q9Z183, PADI4_MOUSE; DR O88807, PADI4_RAT ; Q6TGC4, PADI6_HUMAN; Q8K3V4, PADI6_MOUSE; //