1. [Capacity of hyperthermophilic Crenarchaeota for decomposition of refractory protiens (α- and β-keratins)].
- Author
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Bidzhieva SKh, Derbikova KS, Kublanov IV, and Bonch-Osmolovskaya EA
- Subjects
- Anaerobiosis, Crenarchaeota growth & development, Crenarchaeota isolation & purification, Desulfurococcaceae isolation & purification, Desulfurococcaceae metabolism, Endopeptidases metabolism, Hot Springs microbiology, Hydrogen-Ion Concentration, Hydrolysis, Temperature, Crenarchaeota metabolism, Keratins metabolism, beta-Keratins metabolism
- Abstract
Anaerobic thermophilic archaea of the genera Thermogladius and Desulfurococcus capable of a- and P3-keratin decomposition were isolated from hot springs of Kamchatka and Kunashir Island. For two of them (strains 2355k and 3008g), the presence of high-molecular mass, cell-bound endopeptidases active against nonhydrolyzed and partially hydrolyzed proteins at high values of temperature and pH was shown. Capacity for β-keratin decomposition was also found in collection strains (type strains of Desulfurococcus amylolyticus subsp. amylolyticus, D. mucosus subsp. mobilis, and D. fermentans).
- Published
- 2014