TABLE 7.
Comparison of subunit numbers in hyperthermophilic versus mesophilic enzymes
| Source | Enzyme | No. of subunits in:
|
Reference | |
|---|---|---|---|---|
| Hyperthermophilic enzyme | Mesophilic enzymes | |||
| Pyrococcus woesei | PGK | 2 | 1 | 136 |
| Methanothermus fervidus | PGK | 2 | ||
| Pyrococcus furiosus | β-Glucosidase | 4 | 1 | 357 |
| Sulfolobus solfataricus | β-Glucosidase | 4 | ||
| Thermotoga maritima | β-Glucosidase | 2 | ||
| T. maritima | Anthranilate synthase | 2 | 1 | 315 |
| T. maritima | Dihydrofolate reductase | 1 or 2 | 1 | 364 |
| T. maritima | Phosphoribosyl-anthranilate isomerase | 2 | 1 | 332 |
| S. solfataricus | β-Glycosidase | 4 | 2 | 63 |
| Thermosphaera aggregans | β-Glycosidase | 4 | ||
| Methanopyrus kandleri | MkCH | 3 | 2 | 120 |