Interferon-regulatory factors, IRF3 and IRF7 in Asian seabass, Lates calcarifer: Characterization, ontogeny and transcriptional modulation upon challenge with nervous necrosis virus.
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Title |
Interferon-regulatory factors, IRF3 and IRF7 in Asian seabass, Lates calcarifer: Characterization, ontogeny and transcriptional modulation upon challenge with nervous necrosis virus.
Not Available |
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Creator |
Krishnan R, Zahoor M, Jeena K, Vismai NT, Prasad KP
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Subject |
Antiviral; Asian seabass; Interferon regulatory factor; Nervous necrosis virus; Ontogeny.
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Description |
Not Available
Interferon regulatory factor (IRF) 3 and IRF7 are key regulators of type I interferon (IFN) gene expression for the antiviral immune response. In the present study, interferon regulatory factor 3 and 7 from Asian seabass, namely AsIRF3 and AsIRF7 were cloned and characterized. The full-length cDNA sequence of IRF3 and IRF7 consisted of 2965 and 2343 bp respectively. AsIRF3 and AsIRF7 were true orthologes of vertebrate IRF3/7 and showed similar domain organization, with an N-terminal DBD which consisted five tryptophan residues in IRF3 and four in IRF7, a C-terminal IRF3 domain and a serine rich region. Both IRF3 and 7 constitutively expressed during the ontogenesis and in all tissues of healthy fish. The expression of both genes was up-regulated following NNV challenge with obvious transcript abundance in brain heart and kidney. Ectopic expression of AsIRF3 and AsIRF7 displayed activation of ISRE/NF-κB promoters and modulation of interferon, ISGs and pro-inflammatory cytokine gene expression. These observations indicated that IRF3 and IRF7 play an important role in Asian seabass's antiviral defense and the RIG-IRF-IFN axis is conserved in the species. Not Available |
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Date |
2022-06-17T09:07:03Z
2022-06-17T09:07:03Z 2019-06-01 |
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Type |
Research Paper
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Identifier |
Not Available
Not Available http://krishi.icar.gov.in/jspui/handle/123456789/72855 |
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Language |
English
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Relation |
Not Available;
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Publisher |
Not Available
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