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Memórias do Instituto Oswaldo Cruz

Print version ISSN 0074-0276On-line version ISSN 1678-8060

Abstract

KUGERATSKI, Fernanda G et al. pTcGW plasmid vectors 1.1 version: a versatile tool for Trypanosoma cruzi gene characterisation. Mem. Inst. Oswaldo Cruz [online]. 2015, vol.110, n.5, pp.687-690.  Epub July 21, 2015. ISSN 0074-0276.  https://doi.org/10.1590/0074-02760150074.

The functional characterisation of thousands of Trypanosoma cruzi genes remains a challenge. Reverse genetics approaches compatible with high-throughput cloning strategies can provide the tool needed to tackle this challenge. We previously published the pTcGW platform, composed by plasmid vectors carrying different options of N-terminal fusion tags based on Gateway® technology. Here, we present an improved 1.1 version of pTcGW vectors, which is characterised by a fully flexible structure allowing an easy customisation of each element of the vectors in a single cloning step. Additionally, both N and C-terminal fusions are available with new tag options for protein complexes purification. Three of the newly created vectors were successfully used to determine the cellular localisation of four T. cruzi proteins. The 1.1 version of pTcGW platform can be used in a variety of assays, such as protein overexpression, identification of protein-protein interaction and protein localisation. This powerful and versatile tool allows adding valuable functional information to T. cruzi genes and is freely available for scientific community.

Keywords : Trypanosoma cruzi; plasmid vectors; pTcGW platform; reverse genetics; cloning; gene characterisation.

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