Structural modelling and comparative analysis of homologous, analogous and specific proteins from Trypanosoma cruzi versus Homo sapiens: putative drug targets for chagas disease treatmentReport as inadecuate




Structural modelling and comparative analysis of homologous, analogous and specific proteins from Trypanosoma cruzi versus Homo sapiens: putative drug targets for chagas disease treatment - Download this document for free, or read online. Document in PDF available to download.

BMC Genomics

, 11:610

Comparative and evolutionary genomics

Abstract

BackgroundTrypanosoma cruzi is the etiological agent of Chagas- disease, an endemic infection that causes thousands of deaths every year in Latin America. Therapeutic options remain inefficient, demanding the search for new drugs and-or new molecular targets. Such efforts can focus on proteins that are specific to the parasite, but analogous enzymes and enzymes with a three-dimensional 3D structure sufficiently different from the corresponding host proteins may represent equally interesting targets. In order to find these targets we used the workflows MHOLline and AnEnΠ obtaining 3D models from homologous, analogous and specific proteins of Trypanosoma cruzi versus Homo sapiens.

ResultsWe applied genome wide comparative modelling techniques to obtain 3D models for 3,286 predicted proteins of T. cruzi. In combination with comparative genome analysis to Homo sapiens, we were able to identify a subset of 397 enzyme sequences, of which 356 are homologous, 3 analogous and 38 specific to the parasite.

ConclusionsIn this work, we present a set of 397 enzyme models of T. cruzi that can constitute potential structure-based drug targets to be investigated for the development of new strategies to fight Chagas- disease. The strategies presented here support the concept of structural analysis in conjunction with protein functional analysis as an interesting computational methodology to detect potential targets for structure-based rational drug design. For example, 2,4-dienoyl-CoA reductase EC 1.3.1.34 and triacylglycerol lipase EC 3.1.1.3, classified as analogous proteins in relation to H. sapiens enzymes, were identified as new potential molecular targets.

Electronic supplementary materialThe online version of this article doi:10.1186-1471-2164-11-610 contains supplementary material, which is available to authorized users.

Priscila VSZ Capriles, Ana CR Guimarães contributed equally to this work.

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Author: Priscila VSZ Capriles - Ana CR Guimarães - Thomas D Otto - Antonio B Miranda - Laurent E Dardenne - Wim M Degrave

Source: https://link.springer.com/article/10.1186/1471-2164-11-610







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