| Chain | GOid | namespace | contents |
| A | 0000287 | molecular_function | magnesium ion binding |
| A | 0004588 | molecular_function | orotate phosphoribosyltransferase activity |
| A | 0006221 | biological_process | pyrimidine nucleotide biosynthetic process |
| A | 0006222 | biological_process | UMP biosynthetic process |
| A | 0016740 | molecular_function | transferase activity |
| A | 0016757 | molecular_function | glycosyltransferase activity |
| A | 0019856 | biological_process | pyrimidine nucleobase biosynthetic process |
| A | 0044205 | biological_process | 'de novo' UMP biosynthetic process |
| B | 0000287 | molecular_function | magnesium ion binding |
| B | 0004588 | molecular_function | orotate phosphoribosyltransferase activity |
| B | 0006221 | biological_process | pyrimidine nucleotide biosynthetic process |
| B | 0006222 | biological_process | UMP biosynthetic process |
| B | 0016740 | molecular_function | transferase activity |
| B | 0016757 | molecular_function | glycosyltransferase activity |
| B | 0019856 | biological_process | pyrimidine nucleobase biosynthetic process |
| B | 0044205 | biological_process | 'de novo' UMP biosynthetic process |
| C | 0000287 | molecular_function | magnesium ion binding |
| C | 0004588 | molecular_function | orotate phosphoribosyltransferase activity |
| C | 0006221 | biological_process | pyrimidine nucleotide biosynthetic process |
| C | 0006222 | biological_process | UMP biosynthetic process |
| C | 0016740 | molecular_function | transferase activity |
| C | 0016757 | molecular_function | glycosyltransferase activity |
| C | 0019856 | biological_process | pyrimidine nucleobase biosynthetic process |
| C | 0044205 | biological_process | 'de novo' UMP biosynthetic process |