[Capacity of hyperthermophilic Crenarchaeota for decomposition of refractory protiens (α- and β-keratins)].
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).
S Kh
SKh
Bidzhieva
K S
KS
Derbikova
I V
IV
Kublanov
E A
EA
Bonch-Osmolovskaya
D000693:Anaerobiosis; D019615:Crenarchaeota / Q000254:growth & development / Q000302:isolation & purification / Q000378:metabolism*; D019620:Desulfurococcaceae / Q000302:isolation & purification / Q000378:metabolism; D010450:Endopeptidases / Q000378:metabolism; D045482:Hot Springs / Q000382:microbiology; D006863:Hydrogen-Ion Concentration; D006868:Hydrolysis; D007633:Keratins / Q000378:metabolism*; D013696:Temperature; D053800:beta-Keratins / Q000378:metabolism*
D053800:beta-Keratins; D007633:Keratins; D010450:Endopeptidases