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Introducing a Gene Knockout Directly Into the Amastigote Stage of Trypanosoma cruzi Using the CRISPR/Cas9 System
Published on: July 31, 2019
The composition of untranslated regions in Trypanosoma cruzi genes
Adeilton Brandão1, Taijiao Jiang
1Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro, Brazil. abrandao@fiocruz.br
Abstract:
We collected the UTRs from Trypanosomacruzi genes that have been experimentally mapped and are publicly available, and made a comprehensive analysis of their composition features including sequence length, G+C content and relationship to ORF, composition of the most frequent words, and distribution of Simple Sequence Repeats (SSR). T. cruzi UTRs exhibit range length of 10-400bp for 5' UTR and 17-2800 for 3' UTR. Both UTRs display mean G+C content of 40%. Ratios between the UTR and protein coding segments show that the 5' UTR is limited to a maximum of 20% of the total length in the final transcript. The 5' UTR most frequent words in the range 4-12 bases are almost exact complement to the 3' UTR respective words. SSR in 3' UTR are longer than in 5' UTR and are mostly derived from TA/AT, TG/GT, and TTA/ATT. SSR accounts up to 20% of the nucleotide composition in 5' UTR and up to 90% in the 3' UTR.
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