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Issue 4, 2020
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Cloning, expression and comparison of the properties of Scy p 9, a Scylla paramamosain allergen

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Abstract

This study investigated the properties of Scy p 9 in mud crab (Scylla paramamosain). The gene sequence of filamin C obtained from crabs, which was denoted as Scy p 9, contains a 2544 bp open reading frame and encodes 848 amino acid residues. Recombinant Scy p 9 (rScy p 9) is expressed in Escherichia coli, which exhibits tertiary structure changes, and the IgE binding activity of rScy p 9 is higher than that of native Scy p 9 (nScy p 9). Moreover, this study explored the possibility of the presence and cross-reactivity of filamin C in 8 shellfish. IgE-specific binding to nScy p 9 and rScy p 9 in patients allergic to shellfish revealed that rScy p 9 was more sensitive than nScy p 9. The gene sequence of filamin C fills in the blank in shellfish. This study contributes to the understanding of the properties of Scy p 9, and the results indicate that rScy p 9 can be used as a candidate for component-resolved diagnosis in shellfish.

Graphical abstract: Cloning, expression and comparison of the properties of Scy p 9, a Scylla paramamosain allergen

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Article information


Submitted
01 Jan 2020
Accepted
20 Mar 2020
First published
24 Mar 2020

Food Funct., 2020,11, 3006-3019
Article type
Paper

Cloning, expression and comparison of the properties of Scy p 9, a Scylla paramamosain allergen

X. He, Y. Cheng, Y. Yang, J. Xie, K. Chu, Y. Zhang, G. Chen, H. Liu, M. Cao and G. Liu, Food Funct., 2020, 11, 3006
DOI: 10.1039/D0FO00004C

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