TABLE 2.
Distribution of genes for GP metabolism in archaea whose complete genome sequences have been reported
| Archaeon | Nutrition | egsA | gpsA | glpK | glpA |
|---|---|---|---|---|---|
| Methanococcus jannaschii | Autotroph | + | (+)a | − | − |
| Methanobacterium thermoautotrophicum | Autotroph | + | + | − | − |
| Archaeoglobus fulgidus | Heterotroph | + | + | + | + |
A gene for G-3-P dehydrogenase has been identified but it has not been shown to be gpsA or glpA (1).