L-aspartate 4-semialdehyde + putrescine + NADPH + H(+) => carboxyspermidine + NADP(+) + H2O
l-aspartate 4-semialdehyde + putrescine + nadph + h(+) => carboxyspermidine + nadp(+) + h2o
L-aspartate 4-semialdehyde + putrescine + NADPH + H(+) => carboxyspermidine + NADP(+) + H2O
l-aspartate 4-semialdehyde + putrescine + nadph + h(+) => carboxyspermidine + nadp(+) + h2o