Molecular characterization, expression pattern and immunologic function of in large yellow croaker ().

Front Immunol

State Key Laboratory of Mariculture Breeding, College of Ocean and Earth Sciences, Xiamen University, Xiamen, China.

Published: February 2024

Visceral white spot disease (VWND) caused by poses a major threat to the sustainable development of large yellow croaker () aquaculture. Genome-wide association analysis (GWAS) and RNA-seq research indicated that play an important role in resistance to visceral white spot disease in , but the molecular mechanism of response to infection is still unclear. In this study, we cloned and validated the Open Reading Frame (ORF) sequence of and explored the expression profile of in various tissues of . In addition, two different transcript variants ( and ) of were identified that exhibit alternative splicing patterns after infection, which may be closely related to the immune regulation during pathogenetic process of VWND. In order to explore the function of , we purified the recombinant protein of and . The bacterial agglutination and apoptosis function analysis showed that may involve in extracellular bacterial recognition, agglutination, and at the same time participate in the process of antigen presentation and induction of cell apoptosis. Collectively, our studies demonstrate that plays a crucial role in regulating apoptosis and antimicrobial immunity.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10869527PMC
http://dx.doi.org/10.3389/fimmu.2024.1301877DOI Listing

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