| R00727 | [Fig] | ITP + Butanedionic acid + CoA | <=> | IDP + Orthophosphate + Succinyl-CoA |
| R02405 | [Fig] | GTP + Itaconate + CoA | <=> | GDP + Orthophosphate + Itaconyl-CoA |
| R02406 | [Fig] | ITP + Itaconate + CoA | <=> | IDP + Orthophosphate + Itaconyl-CoA |
| R00432 | [Fig] | GTP + Butanedionic acid + CoA | <=> | GDP + Orthophosphate + Succinyl-CoA |