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Madhumathi J Anugraha G Prince PR Pradiba D Kaliraj P 《Microbes and infection / Institut Pasteur》2011,13(6):602-606
Although the antioxidant thioredoxin peroxidase (TPX) is a putative target exploited in vaccine studies of lymphatic filariasis, the high sequence homology with host peroxiredoxins remains a great concern. The emergence of immunomics offers a powerful tool for novel vaccine design. Further, due to the cellular hypo-response in filariasis, analysis of T epitope repertoire becomes imperative in disease control. Here, we report the cellular responses of filarial TPX-1 and the identification of T epitope (29-43) in the host non-homologous region. The strong proliferative responses induced by the peptide mimetic in mice splenocytes and human PBMC's prove the existence of T epitope recognized in endemic population. 相似文献
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Dhinakararajan Pradiba Murali Aarthy Velu Shunmugapriya Sanjeev Kumar Singh 《Journal of biomolecular structure & dynamics》2013,31(14):3718-3739
Cartilage degradation in rheumatoid arthritis is mediated principally by the collagenases and gelatinases. Gelatinase B (also called matrix metalloproteinase 9 – MMP-9), is a valid target molecule which is known to participate in cartilage degradation as well as angiogenesis associated with the disease and inhibition of its activity shall prevent cartilage damage and angiogenesis. The focus of this study is to investigate the possibilities of MMP-9 inhibition by flavonol class of bioflavonoids by studying their crucial binding interactions at the active site of MMP 9 using molecular docking (Glide XP and QPLD) and further improvisation by post-docking MM-GBSA and molecular dynamic (MD) simulations. The results show that flavonols can convincingly bind to active site of MMP-9 as demonstrated by their stable interactions at the S1′ specificity pocket and favourable binding energies. Gossypin has emerged as a promising candidate with a docking score of ?14.618 kcal/mol, binding energy of ?79.97 kcal/mol and a stable MD pattern over 15 ns. In addition, interaction mechanisms with respect to catalytic site zinc are also discussed. Further, the drug-like characters of the ligands were also analysed using ADME analysis. 相似文献
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