Characterization of histone gene expression in sevenband grouper, Hyporthodus septemfasciatus against nervous necrosis virus infection
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Recent studies revealed that histone proteins are involved in innate immune responses during pathogen invasion as well as DNA packing. This study characterized the histone genes (H2A.V) of sevenband groupers and analyzed gene expression in NNV-infected sevenband groupers. The open reading frame (ORF) of H2A.V is 387 bp which encoded 128 amino acid residues. The deduced amino acid sequence of H2A.V harbor a highly conserved domain for H2A/H2B/H3 and H2A_C binding domain. Quantitative real-time PCR analysis showed that H2A.V had a high gene expression level in the brain and blood after being NNV-infected. An increase in extracellular histone protein in the blood has been identified as a biomarker for vascular function in humans. More research is required to understand histone's immune response at the protein level or in aquatic animals.
Abstract
Recent studies revealed that histone proteins are involved in innate immune responses during pathogen invasion as well as DNA packing. This study characterized the histone genes (H2A.V) of sevenband groupers and analyzed gene expression in NNV-infected sevenband groupers. The open reading frame (ORF) of H2A.V is 387 bp which encoded 128 amino acid residues. The deduced amino acid sequence of H2A.V harbor a highly conserved domain for H2A/H2B/H3 and H2A_C binding domain. Quantitative real-time PCR analysis showed that H2A.V had a high gene expression level in the brain and blood after being NNV-infected. An increase in extracellular histone protein in the blood has been identified as a biomarker for vascular function in humans. More research is required to understand histone's immune response at the protein level or in aquatic animals.
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