| UCR01167 | 
                    L-histidine = CO(2) + histamine | 
                    None - {{∅}} | 
                    None - {{∅}} | 
                    Unexplained | 
                     | 
                
                
                    | UER00786 | 
                    histamine from L-histidine: step 1/1~1 L-histidine => 1 CO(2) + 1 histamine. | 
                    None - {{∅}} | 
                    None - {{∅}} | 
                    Unexplained | 
                     | 
                
                
                    | ULS00389 | 
                    histamine from L-histidine | 
                    None - {{∅}} | 
                    None - {{∅}} | 
                    Unexplained | 
                     | 
                
                
                    | UPA00822 | 
                    histamine biosynthesis~Biosynthesis of histamine (2-(4-imidazolyl)ethylamine). This physiologically active amine is derived from the decarboxylation of the amino-acid histidine, a reaction catalyzed by the enzyme L-histidine decarboxylase. . | 
                    None - {{∅}} | 
                    None - {{∅}} | 
                    Unexplained | 
                     |