Table 7.

Comparison of subunit numbers in hyperthermophilic versus mesophilic enzymes

SourceEnzymeNo. of subunits in:Reference
Hyperthermophilic enzymeMesophilic enzymes
Pyrococcus woesei PGK21 136
Methanothermus fervidus PGK2
Pyrococcus furiosus β-Glucosidase41 357
Sulfolobus solfataricus β-Glucosidase4
Thermotoga maritima β-Glucosidase2
T. maritima Anthranilate synthase21 315
T. maritima Dihydrofolate reductase1 or 21 364
T. maritima Phosphoribosyl-anthranilate isomerase21 332
S. solfataricus β-Glycosidase42 63
Thermosphaera aggregans β-Glycosidase4
Methanopyrus kandleri MkCH32120