Cloning, identification, and bioinformatics analysis of a putative aquaporin TsAQP from Trichinella spiralis
文献类型: 外文期刊
作者: Cui, J. M.;Zhang, N. Z.;Li, W. H.;Yan, H. B.;Fu, B. Q.;Fu, B. Q.
作者机构:
关键词: Trichinella spiralis;Aquaporin;Bioinformatics analysis;Cloning
期刊名称: GENETICS AND MOLECULAR RESEARCH
ISSN: 1676-5680
年卷期: 2015 年 14 卷 4 期
页码:
收录情况: SCI
摘要: Vaccination as a preventative strategy against Trichinella spiralis infection is an ongoing effort, although no ideal vaccine candidates have been identified until now. Identification of more effective antigens that have a role in essential life stages of the parasite and that may be effective vaccine candidates is therefore of importance. In the present study, we identified a novel aquaporin gene (TsAQP) from T. spiralis, and the potential antigenicity of TsAQP was evaluated by epitope prediction. A total of 11 post-translational modification sites were predicted in the protein and fell into 4 categories: N-glycosylation; casein kinase II phosphorylation; protein kinase C phosphorylation; and N-myristoylation sites. TsAQP is a membrane intrinsic protein with high hydrophobicity; the main hydrophobic domains comprised up to 38.5% of the protein and were distributed at amino acid positions 21-43, 54-71, 83-91, 107-121, 163-174, 187-200, and 242-261. The protein consisted mainly of helices (39.58%) and loops (50%). The advanced structure of TsAQP was predicted using homology modeling, which showed that the protein was formed from 6 membrane-spanning domains connected by 5 loops. Based on these analyses, 6 potential B-cell epitopes and 4 potential T-cell epitopes were further predicted. These results suggest that TsAQP could be a promising antigen candidate for vaccination against T. spiralis.
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