2.5.1.44 2 putrescine - Agrobacterium tumefaciens sym-homospermidine + NH3 - ? 189565 2.5.1.44 2 putrescine - Rhizobium leguminosarum sym-homospermidine + NH3 - ? 189565 2.5.1.44 2 putrescine - Paramecium tetraurelia sym-homospermidine + NH3 - ? 189565 2.5.1.44 2 putrescine - Blastochloris viridis sym-homospermidine + NH3 - ? 189565 2.5.1.44 2 putrescine - Acinetobacter tartarogenes sym-homospermidine + NH3 - ? 189565 2.5.1.44 2 putrescine - Ralstonia phage phiRSL1 sym-homospermidine + NH3 - ? 189565 2.5.1.44 2 putrescine - Opitutus terrae sym-homospermidine + NH3 - ? 189565 2.5.1.44 2 putrescine - Bradyrhizobium japonicum sym-homospermidine + NH3 - ? 189565 2.5.1.44 2 putrescine - Agrobacterium fabrum sym-homospermidine + NH3 - ? 189565 2.5.1.44 2 putrescine as partially purified enzymes have been used in the assay the dependence on spermidine for the homospermidine synthesis may have been overlooked. If these enzymes should proof to be spermidine-dependent like other enzymes from plant sources, they must be classified as EC 2.5.1.45 Lathyrus sativus sym-homospermidine + NH3 - ? 189565