Coolbear, TimDaniel, Roy M.Cowan, Don A.Morgan, Hugh W.2010-09-012010-09-011988Coolbear, T., Daniel, R.M., Cowan, D.A. & Morgan, H.W. (1988). Proteases from extreme thermophiles. Annuals of the New York Academy of Sciences, 542, 279-281.https://hdl.handle.net/10289/4506Extremely thermophilic bacteria are those that grow optimally at 65 ℃ or higher. Comparative data are presented on extracellular proteases from two extremely thermophilic eubacteria and one extremely thermophilic archaebacterium. The eubacteria were a Bacillus isolate (protease unnamed) and a Thermus isolate (protease named caldolysin) with optimum growth temperatures of 65 ℃ and 75 ℃, respectively. The archaebacterium was a Desulfurococcus isolate (protease named archaelysin) with an optimum growth temperature of 88 ℃.enthermophileJournal Article10.1111/j.1749-6632.1988.tb25843