Identification and biochemical analysis of a novel pectate lyase 3 gene in Bursaphelenchus xylophilus
Journal of Asia-Pacific Entomology, ISSN: 1226-8615, Vol: 16, Issue: 3, Page: 335-342
2013
- 5Citations
- 14Captures
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Article Description
A novel pectate lyase 3 ( Bx-PEL3 ) gene from the stage-specifically expressed sequence tag library of Bursaphelenchus xylophilus was cloned. Bx-PEL1 and Bx-PEL2 were relatively predominant to Bx-PEL3 in quantitative real-time PCR analysis. The variation of expression level among Bx-PELs according to different life stages suggests that each Bx-PEL may play different biochemical roles in pathogenesis. Recombinant Bx-PEL3 showed activity against polygalacturonic acid and its optimized physical conditions for pH and Ca 2+ concentrations were 9.0 and 0.5 mM, respectively. Homology modeling revealed that Bx-PELs were structurally similar to PEL from the Bacillus strain KSM P-15 and shared essential residues for calcium binding and catalytic activity. Bx-PEL3 was expressed near the esophageal gland as shown in other Bx-PELs, indicating that Bx-PEL3 may be involved in the degradation of the cell wall after secretion from the stylet. Our data suggest that the novel PEL3 gene is a putative pathogenic factor which is biochemically functional.
Bibliographic Details
http://www.sciencedirect.com/science/article/pii/S1226861513000526; http://dx.doi.org/10.1016/j.aspen.2013.04.016; http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84878232200&origin=inward; https://linkinghub.elsevier.com/retrieve/pii/S1226861513000526; https://dx.doi.org/10.1016/j.aspen.2013.04.016
Elsevier BV
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