| arginine req., arginosuccinase | argA1 | VIR |
| arginine req., OTCase | argB13 | IIIL |
| arginine req., OTCase | argB2 | IIIL |
| ornithine req. | ornA4 | IVR |
| ornithine req. N-acetyl ornithine transaminase | ornB20 | VIIIR |
| ornithine req. N-acetyl ornithine transaminase | ornB8 | VIIIR |
| ornithine req. N-acetyl ornithine transaminase | ornB9 | VIIIR |
| ornithine req. N-acetyl ornithine deacetylase | ornC31 | IIIR |
| ornithine req. N-acetyl ornithine transaminase | ornB7 | VIIIR |
| arginine req., OTCase | argB | IIIL |
| arginine req., arginosuccinase | argA | VIR |
| ornithine req. N-acetyl ornithine deacetylase | ornC | IIIR |
| ornithine req. | ornA | IVR |
| ornithine req. N-acetyl ornithine transaminase | ornB | VIIIR |
