| Component_42716 | ribose-phosphate pyrophosphokinase | None - {{∅}} | True - {{t}} | Unconfirmed presence |  | 
                
                    | Evidence_55077 | TIGR01251 HMM | None - {{∅}} | True - {{t}} | Unconfirmed presence |  | 
                
                    | Component_42715 | orotidine 5'-phosphate decarboxylase | None - {{∅}} | True - {{t}} | Unconfirmed presence |  | 
                
                    | Evidence_55081 | TIGR00240 HMM | None - {{∅}} | False - {{f}} | Unconfirmed absence |  | 
                
                    | Evidence_55080 | TIGR01037 HMM | None - {{∅}} | True - {{t}} | Unconfirmed presence |  | 
                
                    | Component_42717 | aspartate carbamoyltransferase, regulatory subunit | None - {{∅}} | False - {{f}} | Unconfirmed absence |  | 
                
                    | Evidence_55071 | TIGR00856 HMM | None - {{∅}} | False - {{f}} | Unconfirmed absence |  | 
                
                    | Evidence_53107 | TIGR01368 HMM | None - {{∅}} | True - {{t}} | Unconfirmed presence |  | 
                
                    | Evidence_55078 | TIGR02127 HMM | None - {{∅}} | False - {{f}} | Unconfirmed absence |  | 
                
                    | Evidence_55089 | PF01180 HMM | None - {{∅}} | True - {{t}} | Unconfirmed presence |  | 
                
                    | Component_40739 | aspartate carbamoyltransferase | None - {{∅}} | True - {{t}} | Unconfirmed presence |  | 
                
                    | GenProp0187 | pyrimidine (uridine-5'-phosphate) de novo biosynthesis~De novo pyrimidine biosynthesis procedes from CO2 (bicarbonate), an NH2 group from glutamine or free ammonia, and aspartate. A ring compound, N-carbomoyl-L-aspartate is formed, then converted in two more steps into orotate. The ribose moiety is then added from alpha-D-5-P-ribosylpyrophosphate (PRPP), which is also a precursor of purines, histidine, and tryptophan. The resulting orotidine monophosphate is decarboxylated to uridine monophosphate (UMP), a pyrimidine nucleotide from which other pyrimidines are made. The few species lacking pyrimidine de novo biosynthesis include some members of the Chlamydiae, Mycoplasmatales, Rickettsiales, and Spirochaetes. | None - {{∅}} | True - {{t}} | Unconfirmed presence |  | 
                
                    | Evidence_55070 | TIGR00670 HMM | None - {{∅}} | True - {{t}} | Unconfirmed presence |  | 
                
                    | Evidence_55072 | TIGR00857 HMM | None - {{∅}} | True - {{t}} | Unconfirmed presence |  | 
                
                    | Component_40737 | carbamoyl-phosphate synthase, small subunit | None - {{∅}} | True - {{t}} | Unconfirmed presence |  | 
                
                    | Component_42714 | orotate phosphoribosyltransferase | None - {{∅}} | True - {{t}} | Unconfirmed presence |  | 
                
                    | Component_42712 | dihydroorotase | None - {{∅}} | True - {{t}} | Unconfirmed presence |  | 
                
                    | Evidence_53108 | TIGR01369 HMM | None - {{∅}} | True - {{t}} | Unconfirmed presence |  | 
                
                    | Component_42713 | dihydroorotate dehydrogenase | None - {{∅}} | True - {{t}} | Unconfirmed presence |  | 
                
                    | Evidence_55076 | TIGR01740 HMM | None - {{∅}} | True - {{t}} | Unconfirmed presence |  | 
                
                    | Evidence_55074 | TIGR00336 HMM | None - {{∅}} | True - {{t}} | Unconfirmed presence |  | 
                
                    | Evidence_55073 | TIGR01036 HMM | None - {{∅}} | False - {{f}} | Unconfirmed absence |  | 
                
                    | Component_40738 | carbamoyl-phosphate synthase, large subunit | None - {{∅}} | True - {{t}} | Unconfirmed presence |  | 
                
                    | Evidence_55075 | TIGR01367 HMM | None - {{∅}} | False - {{f}} | Unconfirmed absence |  |