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Current IssueEditorial BoardOnline First ArticlesArchive

Research Article

volume 52 issue 7 (july 2018) : 1018-1024,   Doi: 10.18805/ijar.B-3313

In-silico structural, functional and immunogenic characterization of Taenia solium TS14 protein

C
Chitra Joshi
S
Siddharth Gautam
1Department of Animal Husbandry, Dairy and fisheries, Ministry of Agriculture and farmers welfare, Basot-263 680, Uttarakhand, India.
Cite article:- Joshi Chitra, Gautam Siddharth (2017). In-silico structural, functional and immunogenic characterization of Taenia solium TS14 protein. Indian Journal of Animal Research. 52(7): 1018-1024. doi: 10.18805/ijar.B-3313.

ABSTRACT

TS14, a Cysticercosis cellulosae derived protein, has been exploited for immunodiagnosis of cysticercosis in humans and pigs. However, the information on structure, function, stability and immunogenicity of TS14 derived from different isolates is primarily lacking. The present study deals with in-silico characterization of six TS14 isolates. High thermostability and an isoelectric point of 9.41 were recorded. Based on N-terminal amino acid residues, high resistance to intracellular proteases with extended in-vivo and in-vitro half-lives was predicted. TS14 is foreseen as a secretory protein with a signal peptide and an extracellular localization. Structural analysis of TS14 exhibited the dominance of helices in the secondary structure (92% coverage) with majority of residues showing high and medium solvent accessibility. High lysine content and presence of multiple nucleotide binding sites in TS14 suggests interaction with RNA/DNA and a role in their metabolism. Immunogenic profiling predicted presence of four distinct B-cell epitopes. Mutational analysis based on the single amino acid substitutions among six TS14 isolates demonstrated minor variations in structural stability; however, all the substitutions were well tolerated. Moreover, all the isolates revealed almost identical immunogenic profile with an equivocal potential to elicit the antibody-mediated immune response.

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Indian Journal of Animal Research
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