The composition of untranslated regions in Trypanosoma cruzi genes.

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.

• Authors: Adeilton Brandão, Taijiao Jiang
• Journal: Parasitology international (Parasitol Int) Vol. 58 Issue 3 Pg. 215-9 (Sep 2009) ISSN: 1873-0329 [Electronic] Netherlands
• PMID: 19505588 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)

Chemical References

• 3' Untranslated Regions
• 5' Untranslated Regions

Topics

• 3' Untranslated Regions (chemistry, genetics)
• 5' Untranslated Regions (genetics)
• Animals
• Base Composition (genetics)
• Base Sequence
• Computational Biology
• Microsatellite Repeats (genetics)
• Open Reading Frames (genetics)
• Trypanosoma cruzi (genetics, metabolism)