l-lysine , l-arginine , and l-histidine , were neither substrates nor inhibitors of the enzyme , as were the diamines 1,3-diaminopropanol and cadaverine , the polyamines spermidine and spermine and the cosubstrate analogues pyridoxal and pyridoxamine-5-phosphate .
C0011957
diamines
C0032433
polyamines