The plant enzyme also catalyses the reactions of EC 22.214.171.124 ornithine carbamoyltransferase, EC 126.96.36.199 carbamate kinase and EC 188.8.131.52 agmatine deiminase, thus acting as putrescine synthase, converting agmatine [(4-aminobutyl)guanidine] and ornithine into putrescine and citrulline, respectively.
Roon, R.J. and Barker, H.A. Fermentation of agmatine in Streptococcus faecalis: occurrence of putrescine transcarbamoylase. J. Bacteriol.109 (1972) 44–50. [PMID: 4621632]
Srivenugopal, K.S. and Adiga, P.R. Enzymic conversion of agmatine to putrescine in Lathyrus sativus seedlings. Purification and properties of a multifunctional enzyme (putrescine synthase). J. Biol. Chem.256 (1981) 9532–9541. [PMID: 6895223]