4-guanidinobutanal + NAD(+) + H2O => 4-guanidinobutanoate + NADH + 2 H(+)
4-guanidinobutanal + nad(+) + h2o => 4-guanidinobutanoate + nadh + 2 h(+)
4-guanidinobutanal + NAD(+) + H2O => 4-guanidinobutanoate + NADH + 2 H(+)
4-guanidinobutanal + nad(+) + h2o => 4-guanidinobutanoate + nadh + 2 h(+)