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RBP42 protein

R Tyler Weisbarth, Anish Das, Paul Castellano, Michael A Fisher, Han Wu, Vivian Bellofatto
Trypanosoma cruzi, the protozoan parasite that causes Chagas disease in humans, has a complex life cycle that promotes survival in disparate environments. In each environment, the parasite must fine-tune its metabolic pathways to divide and multiply. In the absence of recognizable transcriptional gene regulation, it is apparent that protein levels are determined by post-transcriptional mechanisms. Post-transcriptional gene control is influenced by RNA-binding proteins that target mRNAs in the cell's cytoplasm...
April 2018: Parasitology Research
Paola A Nocua, Cesar A Ramirez, José M Requena, Concepción J Puerta
BACKGROUND: The study of RNA binding proteins (RBPs) is of great relevance for understanding processes like post-transcriptional control of gene expression. The post-transcriptional mechanisms are particularly important in Leishmania parasites and related trypanosomatids since transcriptional regulation is almost absent in them. Thus, RBPs should be essential during the development of these parasites and for survival strategies against the adverse conditions that they face during their life-cycle...
December 19, 2017: Parasites & Vectors
Cornelia Klein, Monica Terrao, Diana Inchaustegui Gil, Christine Clayton
We report here the results of experiments designed to identify RNA-binding proteins that might be associated with Trypanosoma brucei polysomes. After some preliminary mass spectrometry of polysomal fractions, we investigated the distributions of selected tagged proteins using sucrose gradients and immunofluorescence. As expected, the polysomal fractions contained nearly all annotated ribosomal proteins, the translation-associated protein folding complex, and many translation factors, but also many other abundant proteins...
2015: PloS One
Anish Das, Rachel Morales, Mahrukh Banday, Stacey Garcia, Li Hao, George A M Cross, Antonio M Estevez, Vivian Bellofatto
RNA-binding proteins that target mRNA coding regions are emerging as regulators of post-transcriptional processes in eukaryotes. Here we describe a newly identified RNA-binding protein, RBP42, which targets the coding region of mRNAs in the insect form of the African trypanosome, Trypanosoma brucei. RBP42 is an essential protein and associates with polysome-bound mRNAs in the cytoplasm. A global survey of RBP42-bound mRNAs was performed by applying HITS-CLIP technology, which captures protein-RNA interactions in vivo using UV light...
November 2012: RNA
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