TABLE 2.
Functions of genes in the pyoverdine region
| Gene(s) | Name(s) | Category | Divergence between types | Functiona |
|---|---|---|---|---|
| PA2385 | pvdQ | Unknown | No | Similarity to aculeacin A acylase |
| PA2386 | pvdA | Synthesis | Yes | l-Ornithine-N5-oxygenase |
| PA2387 | fpvI | Regulation | Yes | ECF sigma factor |
| PA2388 | fpvR | Regulation | Yes | Antisigma transmembrane sensor |
| PA2389-PA2391 | opmQ (PA2391) | Unknown | No | Similarity to RND/MFP/OMF efflux pumps |
| PA2392 | pvdP | Unknown | Yes | Unknown |
| PA2393 | pvdM | Unknown | Yes | Similarity to porcine dipeptidase |
| PA2394 | pvdN | Unknown | Yes | Similarity to isopenicillin N-epimerase |
| PA2395 | pvdO | Unknown | Yes | Unknown |
| PA2396 | pvdF | Synthesis | Yes | N5-hydroxyornithine transformylase |
| PA2397 | pvdE | Transport | Yes | ABC transporter |
| PA2398 | fpvA | Transport | Yes | Pyoverdine outer membrane receptor |
| PA2399-PA2402 | pvdD, pvdJ, pvdI | Synthesis | Yes | Nonribosomal peptide synthetases of the pyoverdine peptide side chain |
| PA2403 | Unknown | Yes | Unknown | |
| PA2404 | Unknown | Yes | Unknown | |
| PA2405-PA2410 | Unknown | No | Membrane proteins and ABC transporter | |
| PA2411 | Unknown | No | Similarity to thioesterase | |
| PA2412 | Unknown | No | Unknown | |
| PA2413 | pvdH | Unknown | No | Similarity to aminotransferase |
| PA2424 | pvdL | Synthesis | No | Nonribosomal peptide synthetase of the pyoverdine chromophore |
| PA2425 | pvdG | Unknown | No | Probable thioesterase |
| PA2426 | pvdS | Regulation | No | ECF sigma factor |
| PA2427 | pvdY | Unknown | Yes | Unknown |
| PA2428 | pvdX | Unknown | No | Unknown |
a
RND, resistance-nodulation-cell division; MFP, membrane fusion protein; OMF, outer membrane factor; ECF, extracytoplasmic-function.