3.5.4.30	E138A	inactive, selenomethionine-substituted	669375	
3.5.4.30	E138Q	inactive	669375	
3.5.4.30	E145A	the mutant enzyme is defect in the deaminase reaction	711005	
3.5.4.30	E145Q	no deaminase activity	648211	
3.5.4.30	E145Q	the mutant enzyme is defect in the deaminase reaction	711005	
3.5.4.30	R115A	inactive	669375