Molecular cloning and expression analysis of MyD88 in spiny head croaker, Collichthys lucidus
文献类型: 外文期刊
第一作者: Sang, C.
作者: Sang, C.;Lin, Y.;Jiang, K.;Zhang, F.;Ma, C.;Ma, L.;Song, W.
作者机构:
关键词: Collichthys lucidus;MyD88;Quantitative real-time PCR
期刊名称:GENETICS AND MOLECULAR RESEARCH ( 影响因子:0.764; 五年影响因子:0.912 )
ISSN: 1676-5680
年卷期: 2015 年 14 卷 2 期
页码:
收录情况: SCI
摘要: Myeloid differentiation factor 88 (MyD88) is an important adaptor protein involved in toll-like receptor signaling pathways. In this study, a cDNA library from Collichthys lucidus was constructed using the SMART technique. A complete cDNA sequence showing high identity with the conserved sequence of the MyD88 gene was cloned from the cDNA library using expressed sequence tag analysis and rapid amplification of cDNA ends, and then subjected to further investigation. The full-length cDNA of MyD88 from C. lucidus (ClMyD88) was 1580 bp, including a 5'-terminal untranslated region (UTR) of 102 bp, a 3'-terminal UTR of 614 bp, and an open reading frame of 864 bp. The gene encoded a polypeptide of 287 amino acids, constituting a predicted molecular weight of 33.03 kDa and a theoretical isoelectric point of 5.06. It contained a typical death domain at the N-terminal and a conservative toll/IL-1 receptor domain structure at the C-terminal. Quantitative real-time reverse transcription PCR analysis revealed broad expression of ClMyD88, with the highest expression in the gill and the weakest expression in the brain and muscle. These results indicated that MyD88 has an important role in the innate immune system in C. lucidus.
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