Abstract
MicroRNAs (miRNAs) are small, noncoding RNAs that play key roles in regulating gene expression in animals, plants, and viruses, which involves in biological processes including development, cancer, immunity, and host–microorganism interactions. In this present study, we have used the computational approach to identify potent miRNAs involved in Anopheles gambiae immune response. Analysis of 217,261 A. gambiae ESTs and further study of RNA folding revealed six new miRNAs. The minimum free energy of the predicted miRNAs ranged from −27.2 to −62.63 kcal/mol with an average of −49.38 kcal/mol. While its A + U % ranges from 50 to 65 % with an average value of 57.37 %. Phylogenetic analysis of the predicted miRNAs revealed that aga-miR-277 was evolutionary highly conserved with more similarity with other mosquito species. Observing further the target identification of the predicted miRNA, it was noticed that the aga-miR-2304 and aga-miR-2390 are involved in modulation of immune response by targeting the gene encoding suppressin and protein prophenoloxidase. Further detailed studies of these miRNAs will help in revealing its function in modulation of A. gambiae immune response with respect to its parasite.
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All the authors are thankful to the Pondicherry Centre for Biological centre (PCBS) for providing the necessary facility to carry out the work. Financial support as startup loan from State Bank of India (RASMECC), Pondicherry, India to establish the institute is also gratefully acknowledged.
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Thirugnanasambantham, K., Hairul-Islam, V.I., Saravanan, S. et al. Computational Approach for Identification of Anopheles gambiae miRNA Involved in Modulation of Host Immune Response. Appl Biochem Biotechnol 170, 281–291 (2013). https://doi.org/10.1007/s12010-013-0183-5
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DOI: https://doi.org/10.1007/s12010-013-0183-5