Table 1.
Database genes mapped on the S. meliloti chromosome
| Gene | Description | Ref. |
|---|---|---|
| aatA and aatB | Aspartate aminotransferase A and B | |
| actA-phrR-act206† | Genes required for acid tolerance | 53 |
| actS-actR | Two-component regulatory system involved in acid tolerance | |
| adenine DNA methyltransferase betICBA† | Glycine betaine synthesis | 31 |
| cgmA | Unknown | |
| cheY1AWRBY2-orf1-orf2-orf9* | Chemotaxis operon | 29 |
| chvI-chvG* | Two-component regulatory system | 27 |
| cyaA and cya2 | Adenylcyclase A and 2 | |
| cycHJKL* | Cytochrome c-type biogenesis operon | 54 |
| degP* | Protease | 15 |
| delta-ALA synthetase | δ-aminolevulinic acid synthase | |
| dgkA | Diacylglycerol kinase | |
| dme* | NAD-malice enzyme | 30 |
| dnaA | Chromosomal replication initiator protein | |
| exoD* | Nodule invasion protein ExoD | 15 |
| exoR* | Probable transcriptional regulator | 15 |
| exoS* | Histidine kinase sensory protein ExoS | 15 |
| flaA-flaB* | Flagellin genes | 29 |
| fliI-flgF-motA-fliM* | Flagellae operon | |
| fliP* | Protein involved in production of functional flagella | 28 |
| ftsQ-ftsA-ftsZ* | Cell division proteins | 55 |
| ftsZ2* | Cell division protein | 56 |
| glnA-glnB | Glutamine synthetase I; PII regulatory protein | |
| gltX-lysS* | Glutamyl-tRNA synthetase; lysyl-tRNA synthetase | 20 |
| gyrA | DNA gyrase subunit A | |
| helO | Putative helicase | |
| hsp70 | Heat shock protein | |
| ilvC† | Acetohydroxy acid isomeroreductase | 57 |
| katA† | Catalase | 32 |
| lon | Protease | |
| leu-tRNA gene | Transfer RNA-leucine | |
| mucR | Trancriptional regulatory protein | |
| mraY-murD | UDP-N-acetylmuramoyl-l-alanyl-d-glutamate synthetase | |
| ndvA* | Protein involved in the production of β-(1-2)-glucan | 20 |
| ndvB* | Protein involved in the production of β-(1-2)-glucan | 15 |
| nolR† | Nodulation protein NolR | 36 |
| ntrA* | RNA polymerase σ-54 factor | 15, 20 |
| ntrB-ntrC† | Two-component regulatory proteins | 34 |
| nuoABC | NADH-ubiquinone oxidoreductase | |
| pckA* | Phosphoenolpyruvate carboxykinase | 27 |
| pckR | Putative regulator of pckA expression | |
| phaABCDEFG | K+ efflux system involved in pH adaptation | |
| phbC | Poly-β-hydroxybutyrate synthase | |
| phoU-phoB* | Phosphate regulatory proteins | 15 |
| pmi | Phosphoisomerase | |
| podA* | Pyruvate orthophosphate dikinase | 33 |
| pro-tRNA† | Transfer RNA-proline | 58 |
| putA† | Proline dehydrogenase | 37 |
| recA-alaS | RecA protein; alanyl-tRNA synthetase | |
| recF-orfA-pit* | Phosphate transport protein | 59 |
| rkpK-orf1† | UDP-glucose dehydrogenase; UDP-glucuronic acid epimerase | 60 |
| rpsA† | 30S ribosomal protein S1 | 61 |
| sigA-tdh† | σ-factor; threonine dehydrogenase | 35 |
| soxADB-glxABCD-glnT | Sarcosine oxidase; glutamine synthetase III operon | |
| surE-pcm-bioS-lppB | Possible survival operon | |
| suhR | rpoH suppressor | |
| tatA | Tyrosine aminotransferase | |
| tme* | NADP-dependent malic enzyme | 30 |
| trpE | Anthranilate synthase | |
| ureABC | Urease | |
| 4_Rme | Putative σ-54 dependent transcriptional activator |
*
Genes previously mapped on the chromosome (located) as described in the respective references.
†
Genes previously assigned to the chromosome (not located) as described in the respective references.