scholarly journals Characterization of a Novel Alginate Lyase from Marine Bacterium Vibrio furnissii H1

Marine Drugs ◽  
2018 ◽  
Vol 16 (1) ◽  
pp. 30 ◽  
Author(s):  
Xiaoyan Zhu ◽  
Xiangqian Li ◽  
Hao Shi ◽  
Jia Zhou ◽  
Zhongbiao Tan ◽  
...  
Marine Drugs ◽  
2018 ◽  
Vol 16 (3) ◽  
pp. 86 ◽  
Author(s):  
Peng Chen ◽  
Yueming Zhu ◽  
Yan Men ◽  
Yan Zeng ◽  
Yuanxia Sun

Marine Drugs ◽  
2019 ◽  
Vol 17 (5) ◽  
pp. 308 ◽  
Author(s):  
Yanan Wang ◽  
Xuehong Chen ◽  
Xiaolin Bi ◽  
Yining Ren ◽  
Qi Han ◽  
...  

Alginate oligosaccharides (AOS) show versatile bioactivities. Although various alginate lyases have been characterized, enzymes with special characteristics are still rare. In this study, a polysaccharide lyase family 7 (PL7) alginate lyase-encoding gene, aly08, was cloned from the marine bacterium Vibrio sp. SY01 and expressed in Escherichia coli. The purified alginate lyase Aly08, with a molecular weight of 35 kDa, showed a specific activity of 841 U/mg at its optimal pH (pH 8.35) and temperature (45 °C). Aly08 showed good pH-stability, as it remained more than 80% of its initial activity in a wide pH range (4.0–10.0). Aly08 was also a thermo-tolerant enzyme that recovered 70.8% of its initial activity following heat shock treatment for 5 min. This study also demonstrated that Aly08 is a polyG-preferred enzyme. Furthermore, Aly08 degraded alginates into disaccharides and trisaccharides in an endo-manner. Its thermo-tolerance and pH-stable properties make Aly08 a good candidate for further applications.


2013 ◽  
Vol 35 (5) ◽  
pp. 703-708 ◽  
Author(s):  
Ya Wang ◽  
En-Wen Guo ◽  
Wen-Gong Yu ◽  
Feng Han

2008 ◽  
Vol 11 (1) ◽  
pp. 10-16 ◽  
Author(s):  
Dong Eun Kim ◽  
Eun Yeol Lee ◽  
Hee Sook Kim

2018 ◽  
Vol 9 ◽  
Author(s):  
Min Yang ◽  
Yuan Yu ◽  
Suxiao Yang ◽  
Xiaohui Shi ◽  
Haijin Mou ◽  
...  

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