| UER00363 | N-acetylputrescine from putrescine: step 1/1~1 acetyl-CoA + 1 putrescine => 1 CoA + 1 N-acetylputrescine. | False - {{f}} | None - {{∅}} | Absent |  | 
                
                    | UER00293 | succinate semialdehyde from 4-aminobutanoate: step 1/1~1 2-oxoglutarate + 1 4-aminobutanoate => 1 L-glutamate + 1 succinate semialdehyde. | False - {{f}} | None - {{∅}} | Absent |  | 
                
                    | UER00881 | 4-aminobutanoate from putrescine: step 2/4~1 H(2)O + 1 O(2) + 1 gamma-L-glutamylputrescine => 1 H(2)O(2) + 1 NH(3) + 1 gamma-glutamyl-4-aminobutanal. | False - {{f}} | None - {{∅}} | Absent |  | 
                
                    | UER00289 | 4-aminobutanal from putrescine (amine oxidase route): step 1/1~1 H(2)O + 1 O(2) + 1 putrescine => 1 4-aminobutanal + 1 H(2)O(2) + 1 NH(3). | False - {{f}} | None - {{∅}} | Absent |  | 
                
                    | UPA00188 | putrescine degradation~Degradation of the putrescine polyamine. There are two routes of putrescine degradation to succinate semialdehyde via gamma-aminobutyric acid (GABA). | False - {{f}} | None - {{∅}} | Absent |  | 
                
                    | UER00990 | None~1 H(2)O + 1 NADP(+) + 1 gamma-glutamyl-4-aminobutanal => 1 4-(L-gamma-glutamylamino)butanoic acid + 1 H(+) + 1 NADPH. | False - {{f}} | None - {{∅}} | Absent |  | 
                
                    | ULS00133 | 4-aminobutanoate from 4-aminobutanal | False - {{f}} | None - {{∅}} | Absent |  | 
                
                    | UER00883 | 4-aminobutanoate from putrescine: step 4/4~1 4-(L-gamma-glutamylamino)butanoic acid + 1 H(2)O => 1 4-aminobutanoate + 1 L-glutamate. | False - {{f}} | None - {{∅}} | Absent |  | 
                
                    | UER00292 | 4-aminobutanoate from 4-aminobutanal: step 1/1~1 4-aminobutanal + 1 H(2)O + 1 NAD(+) => 1 4-aminobutanoate + 1 H(+) + 1 NADH. | False - {{f}} | None - {{∅}} | Absent |  | 
                
                    | VariantPath-2-UER00882 |  | False - {{f}} | None - {{∅}} | Absent |  | 
                
                    | UER00989 | None~1 H(2)O + 1 NAD(+) + 1 gamma-glutamyl-4-aminobutanal => 1 4-(L-gamma-glutamylamino)butanoic acid + 1 H(+) + 1 NADH. | False - {{f}} | None - {{∅}} | Absent |  | 
                
                    | ULS00134 | succinate semialdehyde from 4-aminobutanoate | False - {{f}} | None - {{∅}} | Absent |  | 
                
                    | ULS00435 | 4-aminobutanoate from putrescine | False - {{f}} | None - {{∅}} | Absent |  | 
                
                    | VariantPath-1-UER00882 |  | False - {{f}} | None - {{∅}} | Absent |  | 
                
                    | UER00882 | 4-aminobutanoate from putrescine: step 3/4~H(2)O + gamma-glutamyl-4-aminobutanal + [NAD(+) or NADP(+)] => 4-(L-gamma-glutamylamino)butanoic acid + H(+) + [NADH or NADPH]. | False - {{f}} | None - {{∅}} | Absent |  | 
                
                    | VariantPath-1-UPA00188 |  | False - {{f}} | None - {{∅}} | Absent |  | 
                
                    | VariantPath-3-UPA00188 |  | False - {{f}} | None - {{∅}} | Absent |  | 
                
                    | ULS00163 | N-acetylputrescine from putrescine | False - {{f}} | None - {{∅}} | Absent |  | 
                
                    | VariantPath-2-UPA00188 |  | False - {{f}} | None - {{∅}} | Absent |  | 
                
                    | UER00290 | 4-aminobutanal from putrescine (transaminase route): step 1/1~1 2-oxoglutarate + 1 putrescine => 1 4-aminobutanal + 1 L-glutamate. | False - {{f}} | None - {{∅}} | Absent |  | 
                
                    | ULS00115 | 4-aminobutanal from putrescine (transaminase route) | False - {{f}} | None - {{∅}} | Absent |  | 
                
                    | ULS00114 | 4-aminobutanal from putrescine (amine oxidase route) | False - {{f}} | None - {{∅}} | Absent |  | 
                
                    | VariantPath-4-UPA00188 |  | False - {{f}} | None - {{∅}} | Absent |  | 
                
                    | UER00880 | 4-aminobutanoate from putrescine: step 1/4~1 ATP + 1 L-glutamate + 1 putrescine => 1 ADP + 1 gamma-L-glutamylputrescine + 1 phosphate. | False - {{f}} | None - {{∅}} | Absent |  |