A densely overlapping gene fragmentation approach improves yeast two-hybrid screens for Plasmodium falciparum proteins.

ABSTRACT: Use of the yeast two-hybrid assay to study Plasmodium falciparum protein-protein interactions is limited by poor expression of P. falciparum genes in yeast and lack of easily implemented assays to confirm the results. We report here two methods to create gene fragments - random fragmentation by partial DNAse I digestion and generation of densely overlapping fragments by PCR - that enable most portions of P. falciparum genes to be expressed and screened in the yeast two-hybrid assay. The PCR-based method is less technically challenging and facilitates fine-scale mapping of protein interaction domains. Both approaches revealed a putative interaction between PfMyb2 (PF10_0327) and PFC0365w. We developed new plasmids to express the proteins in wheat germ extracts and confirmed the interaction

SUBMITTER: Brown HF 

PROVIDER: S-EPMC3120127 | biostudies-literature | 2011 Jul-Aug

REPOSITORIES: biostudies-literature