期刊
MARINE GENOMICS
卷 37, 期 -, 页码 54-57出版社
ELSEVIER
DOI: 10.1016/j.margen.2017.11.010
关键词
Colwellia; Psychrophilic bacterium; Cold-adapted proteases; Complete genome
资金
- National Key Basic Research Program of China [2015CB755903]
- China Agriculture Research System [CARS-47]
- China Polar Environment Comprehensive Investigation and Assessment Program [CHINARE2017-04-03, CHINARE2017-01-05]
- Fujian Regional Demonstration Project of Marine Economy Innovation and Development [2014FJPT10]
- China Postdoctoral Science Foundation [2016M600496]
Colwellia sp. NB097-1, isolated from a marine sediment sample from the Bering Sea, is a psychrophilic bacterium whose optimal and maximal growth temperatures were 13 and 25 degrees C, respectively. Here, we present the complete genome of Colwellia sp. NB097-1, which was 4,661,274 bp in length with a GC content of 38.5%. The genome provided evidence for the potential genetic basis for its adaptation to a cold environment, such as producing compatible solutes and cold-shock proteins, increasing membrane fluidity and synthesizing glycogen. Some cold-adaptive proteases were also detected in the genome of Colwellia sp. NB097-1. Protease activity analysis further showed that extracellular proteases of Colwellia sp. NB097-1 remained active at low temperatures. The complete genome sequence may be helpful to reveal how this strain survives at low temperature and to find cold-adaptive proteases that may be useful to industry.
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