1.4.3.B1	N-(4-aminobutyl)-L-glutamine + H2O + O2	i.e. gamma-glutamyl-L-putrescine, i.e. N-(gamma-L-glutamyl)putrescine. The enzyme is involved in the degradation of putrescine	Escherichia coli	N-(4-oxobutyl)-L-glutamine + NH3 + H2O2	i.e. 4-(gamma-glutamylamino)butanal	?	427486	
1.4.3.B1	N-(4-aminobutyl)-L-glutamine + H2O + O2	i.e. gamma-glutamyl-L-putrescine, i.e. N-(gamma-L-glutamyl)putrescine	Escherichia coli	N-(4-oxobutyl)-L-glutamine + NH3 + H2O2	i.e. 4-(gamma-glutamylamino)butanal	?	427486