1887

Abstract

is known to cause tremor disease in the Chinese mitten crab ; however, the molecular characterization of this pathogen is still unclear. has the ability to invade and survive within mouse 3T6 cells. The invasion process may require causing damage to the host cell membrane by chemical, physical or enzymatic means. In this study, we systematically characterized a novel lysophospholipase (lysoPL) of TDA-040725-5. The gene that encodes lysoPL in (SE-LysoPL) was cloned, sequenced and expressed in BL21 (DE3). Enzymatic assays revealed that the purified recombinant SE-LysoPL hydrolysed long-chain acyl esterases at pH 7 and 30 °C. SE-LysoPL was detected in the membrane and cytoplasmic protein fractions using the SE-LysoPL antibody in Western blot. The virulence ability of was effectively reduced at the early stage of infection (m.o.i.=100) by the SE-LysoPL antibody neutralization test. To the best of our knowledge, this is the first study to identify and characterize a gene from encoding a protein exhibiting lysoPL and esterase activities. Our findings indicate that SE-LysoPL plays important roles in the pathogenicity of .

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/content/journal/micro/10.1099/mic.0.000407
2017-02-01
2020-01-22
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