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- Title
Molecular and immune response characterizations of a novel Bax inhibitor-1 gene in pufferfish, Takifugu obscurus.
- Authors
Cheng, Chang-Hong; Luo, Sheng-Wei; Wang, An-Li; Guo, Zhi-Xun
- Abstract
Apoptosis plays a crucial role in many biological processes, including development, cellular homeostasis, and immune responses. Bax inhibitor-1 (BI-1) is an anti-apoptotic protein that protects cells from endoplasmic reticulum stress-induced apoptosis. In this study, a BI-1 gene from the pufferfish Takifugu obscurus (Pf-BI-1) was identified and characterized. The full length of Pf-BI-1 cDNA was 1387 bp, including a 5′-UTR of 82 bp, a 3′-UTR of 591 bp containing a poly-(A) tail, and an open reading frame (ORF) of 714 bp that encodes a polypeptide of 237 amino acids. Pf-BI-1 was ubiquitously expressed in various tissues, with the highest expression levels in the blood, brain, and gill. The expression of Pf-BI-1 was up-regulated in a time-dependent manner after heat shock stress, ammonia stress, and bacterial challenge. Intracellular localization revealed that Pf-BI-1 was primarily localized in the cell cytoplasm. Furthermore, over-expression of Pf-BI-1 could active NF-кB reporter genes in HeLa cells. These results indicated that Pf-BI-1 may be involved in the apoptosis and immunity process against ambient stressors in pufferfish.
- Publication
Fish Physiology & Biochemistry, 2017, Vol 43, Issue 4, p965
- ISSN
0920-1742
- Publication type
Article
- DOI
10.1007/s10695-016-0337-9