Article
Distinct subcellular localization of tRNA-derived fragments in the infective metacyclic forms of Trypanosoma cruzi
Registro en:
REIFUR, Larissa et al. Distinct subcellular localization of tRNA-derived fragments in the infective metacyclic forms of Trypanosoma cruzi. Memórias do Instituto Oswaldo Cruz, Rio de Janeiro, v.107, n. 6, p. 816–819, 2012.
1678-8060
10.1590/s0074-02762012000600018
1678-8060
Autor
Reifur, Larissa
Garcia-Silva, Maria Rosa
Poubel, Saloê Bispo
Alves, Lysangela Ronalte
Arauco, Paulo
Buiar, Diane Kelly
Goldenberg, Samuel
Cayota, Alfonso
Dallagiovanna, Bruno
Resumen
Small non-coding RNAs derived from transfer RNAs have been identified as a broadly conserved prokaryotic and eukaryotic response to stress. Their presence coincides with changes in developmental state associated with gene expression regulation. In the epimastigote form of Trypanosoma cruzi, tRNA fragments localize to posterior cytoplasmic granules. In the infective metacyclic form of the parasite, we found tRNA-derived fragments to be abundant and evenly distributed within the cytoplasm. The fragments were not associated with polysomes, suggesting that the tRNA-derived fragments may not be directly involved in translation control in metacyclics.