| MMDBr0012895 | diphosphate | Phosphoribosyl pyrophosphate | Orotate phosphoribosyltransferase | Transfer of a ribosyl group | RHEA | 34755880 |
| MMDBr0013026 | Hydrogen Ion | Carbon dioxide | Orotidine 5'-phosphate decarboxylase | Decarboxylation | RHEA | 34755880 |
| MMDBr0013083 | Glucose 1-phosphate | ADP-alpha-D-glucose | Glucose-1-phosphate adenylyltransferase | Reversible transfer of an adenylyl group | RHEA | 34755880 |
| MMDBr0013173 | diphosphate | Phosphoribosyl pyrophosphate | Bifunctional protein PyrR | Transfer of phosphoribosyl group | RHEA | 34755880 |
| MMDBr0013224 | Hydrogen Ion | diphosphate | Bifunctional protein GlmU | N-Acetylation; Phosphorylation; Isomerization | RHEA | 34755880 |
| MMDBr0013225 | L-Dihydroorotic acid | Hydrogen Ion | Dihydroorotate dehydrogenase B (NAD(+)), catalytic subunit | Dehydrogenation | RHEA | 34755880 |
| MMDBr0013248 | Acetyl-CoA | CoA | Bifunctional protein GlmU | N-Acetylation | RHEA | 34755880 |
| MMDBr0013444 | Adenosine triphosphate | Phosphoribosyl pyrophosphate | Ribose-phosphate pyrophosphokinase 1 | Phosphorylation | RHEA | 34755880 |
| MMDBr0013946 | Carbamoylphosphate | Hydrogen Ion | Protein pyrABCN | Transfer of a carbamoyl group | RHEA | 34755880 |
| MMDBr0014336 | L-Lactic acid | Hydrogen Ion | L-lactate dehydrogenase | Dehydrogenation | RHEA | 34755880 |
| MMDBr0014437 | L-Dihydroorotic acid | Hydrogen Ion | Dihydroorotase | Hydrolysis | RHEA | 34755880 |
| MMDBr0017882 | Adenosine triphosphate | ADP | Carbamoyl-phosphate synthase small chain | Synthesis | RHEA | 34755880 |
