| Status | Description | Organism | Genes | References |
|---|---|---|---|---|
| CTP synthetase | Alicyclobacillus acidocaldarius | pyrG | ||
| CTP synthetase | Aquifex aeolicus | pyrG | ||
| CTP synthetase | Alishewanella aestuarii | G10GE-950 | ||
| CTP synthetase | Alishewanella agri | pyrG | ||
| CTP synthetase | Agrobacterium albertimagni | pyrG | ||
| CTP synthetase | Aggregatibacter aphrophilus | pyrG | ||
| CTP synthase | Acetohalobium arabaticum | GHPK-2260 | ||
| CTP synthase | Arthrobacter arilaitensis | pyrG | ||
| CTP synthetase | Aromatoleum aromaticum | pyrG | ||
| CTP synthetase | Achromobacter arsenitoxydans | pyrG |