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  • Title: Interleukin-17 in pearl oyster (Pinctada fucata): molecular cloning and functional characterization.
    Author: Wu SZ, Huang XD, Li Q, He MX.
    Journal: Fish Shellfish Immunol; 2013 May; 34(5):1050-6. PubMed ID: 23357025.
    Abstract:
    IL-17 from pearl oyster Pinctada fucata, one of mollusk, was identified and characterized, and its genomic structure and promoter were analyzed. The full-length cDNA of P. fucata IL-17 (PfIL-17) is 907 bp with an open reading frame of 585 bp encoding a putative protein of 194 amino acids. The deduced PfIL-17 contains a 19 amino acid signal peptide and a conserved IL-17 domain. Multiple sequence alignments and phylogenetic analysis revealed that PfIL-17 has lower similarity with other invertebrate IL-17 and was clustered with CgIL-17, but not clustered with other invertebrate IL-17. Gene expression analysis indicated that PfIL-17 took part in the immune response to LPS and poly(I:C) stimulation, and dual-luciferase reporter assays showed that PfIL-17 could active vertebrate target genes containing the NF-κB binding site and involve NF-κB signal pathway in HEK293 cells. Combined with the results mentioned above, it is suggested that PfIL-17 might involve and activate NF-κB signal pathway against extracellular pathogens.
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