|
Examples of horizontally transferred operons |
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| Operon |
Recipient organism and correspondent genes |
Probable source |
Other probable recipients |
Comment |
|
|
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| Operon acquisition |
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| Pyruvate:ferredoxin oxidoreductase |
Thermotoga maritima TM0015-TM0018 |
Archaea |
Aae, Hpy, Bha/Sau |
Apparently, the related operon for 2-oxoisovalerate oxidoreductase (TM1758-TM1759) was also transferred from archaea |
| Sulfate/molybdate transport |
Bacillus halodurans BH3128-BH3130 |
Gram-negative bacteria |
- |
No other such operons in Bacillus-Clostridium group members |
| Putative effector of murein hydrolase |
Pyrococcus horikoshii PH1801-PH1802 |
Bacteria |
Pab, Mac |
|
| Allophanate hydrolase subunits |
Pyrococcus horikoshii PH0987-PH0988 |
Bacteria |
Pab |
|
| Paralogous operon acquisition |
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| Dipeptide transporter |
Vibrio cholerae VC0620-VC0616 |
Thermotoga/Archaea |
Tma |
It has several another bacterial operons including VC1091-VC1095 |
| Ribonucleotide reductase alpha and beta subunit |
Halobacterium sp. VNG2384G VNG2383G |
Bacteria |
- |
Additional to "archaeal:" Ribonucleotide reductase alpha subunit VNG1644G, beta subunit is apparently lost |
| Aromatic amino-acid biosynthesis |
Halobacterium sp. VNG0384G VNG0386G |
Bacteria |
- |
Paralogs of this pair are VNG1646G-VNG1647G |
| Xenologous operon displacement |
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| Histidine biosynthesis suboperon |
Pseudomonas aeruginosa PA3151-PA3152 |
Epsilon-Proteobacteria |
- |
|
| Panthothenate synthesis |
Campylobacter jejuni Cj0297c-Cj0298c |
Gram-positive bacteria |
- |
|
| DNA repair SbcDC |
Vibrio cholerae VCA0520-VCA0521 |
Gram-positive bacteria |
- |
|
| DNA gyrase A and B |
Halobacterium sp. VNG0887G-VNG0889G |
Bacteria |
Hbs, Tac, Tvo, Afu, |
|
| Dipeptide transporter |
Streptococcus pyogenes SPy2000-SPy2004 |
Gamma-Proteobacteria |
- |
|
| Glutamate synthase complex |
Thermotoga maritima TM0394-TM0398 |
Archaea |
- |
There is another homolog for gene TM0397 of possible archaeal origin |
| NADH:ubiquinone oxidoreductase |
Halobacterium sp. VNG0635G-VNG0637G |
Bacteria |
- |
|
| Phosphate transporter |
Methanothermobacter thermoautotrophicum MTH1727-MTH1734 |
Bacteria |
- |
|
Omelchenko et al. Genome Biology 2003 4:R55 doi:10.1186/gb-2003-4-9-r55 |
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