A thermostable serralysin inhibitor from marine bacterium Flavobacterium sp. YS-80-122
Biology|Updated:2023-05-19
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A thermostable serralysin inhibitor from marine bacterium Flavobacterium sp. YS-80-122
Chinese Journal of Oceanology and LimnologyVol. 36, Issue 2, Pages: 483-489(2018)
Affiliations:
1.Key Laboratory of Polar Fisheries Development, Ministry of Agriculture, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China
2.Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China
3.Shanghai Ocean University, Shanghai 201306, China
Pengjuan LIANG, Shangyong LI, Kun WANG, et al. A thermostable serralysin inhibitor from marine bacterium Flavobacterium sp. YS-80-122[J]. Chinese Journal of Oceanology and Limnology, 2018, 36(2): 483-489.
DOI:
Pengjuan LIANG, Shangyong LI, Kun WANG, et al. A thermostable serralysin inhibitor from marine bacterium Flavobacterium sp. YS-80-122[J]. Chinese Journal of Oceanology and Limnology, 2018, 36(2): 483-489. DOI: 10.1007/s00343-018-6266-y.
A thermostable serralysin inhibitor from marine bacterium Flavobacterium sp. YS-80-122
摘要
Abstract
Serralysin inhibitors have been proposed as potent drugs against many diseases and may help to prevent further development of antibiotic-resistant pathogenic bacteria. In this study
a novel serralysin inhibitor gene
lupI
was cloned from the marine bacterium
Flavobacterium
sp. YS-80-122 and expressed in
Escherichia coli
. The deduced serralysin inhibitor
LupI
shows
<
40% amino acid identity to other reported serralysin inhibitors. Multiple sequence alignment and phylogenetic analysis of LupI with other serralysin inhibitors indicated that LupI was a novel type of serralysin inhibitor. The inhibitory constant for LupI towards its target metalloprotease was 0.64 μmol/L. LupI was thermostable at high temperature
in which 35.6%-90.7% of its inhibitory activity was recovered after treatment at 100℃ for 1-60 min followed by incubation at 0℃. This novel inhibitor may represent a candidate drug for the treatment of serralysin-related infections.
关键词
Keywords
references
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