TABLE 1.
Previously identified S. meliloti genes mapped on the pSyma megaplasmid
| Gene(s) | Encoded function or product |
|---|---|
| adhA | Alcohol dehydrogenase |
| fixABCX | Putative electron transport chain to nitrogenase |
| fixGHIS | Putative cation transport complex |
| fixJ2T2-fixK2 | Transcriptional activators |
| fixKorf151 | Transcriptional activator |
| fixLJT1 | Hemoprotein kinase; transcriptional activator |
| fixNOQP | Putative bacteroid oxidase |
| groESLa | Chaperonin |
| nifABfdxNfixU | Nitrogen fixation regulatory protein; ferredoxin-like protein |
| nifHDKE | Nitrogenase reductase |
| nifN | FeMo-cofactor biosynthesis |
| nodABCIJ | Acyltransferase; N acetylase; chitin synthase; transporter of nod factors |
| nodD1 | nod gene activator |
| nodD2 | nod gene activator |
| nodD3 | nod gene activator |
| nodFE | Acyl carrier protein; β-ketoacyl synthase |
| nodG | Putative dehydrogenase |
| nodH | Sulfotransferase |
| nodLnoeAB | O-Acetyltransferase |
| nodMnolFGHInodN | Glucosamine synthase; transport |
| nodPQ | ATP sulfurylase APS kinase |
| nolQS | Unknown function; similar to a thiamine biosynthetic enzyme |
| nosRZDFY | Nitrous oxide reduction proteins |
| maturase | Reverse transcriptase/maturase |
| rhbF | Siderophore biosynthesis in rhizobactin regulon |
| syrA | Increases exopolysaccharide abundance |
| syrB | Negatively affects syrM expression |
| syrM | nod gene activator |