Yersinia Palindromic Sequences Introduction to Bioinformatics 301 April 30th, 2015 Jordan Davis.

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Yersinia Palindromic Sequences Introduction to Bioinformatics 301 April 30th, 2015 Jordan Davis

Yersinia Palindromic Sequences (YPALs) ●Mini DNA insertions scattered along the genome of known Yersinia bacteria ●Significance: YPALs encode mRNA stabilizers by forming RNA hairpins ■ RNA hairpins counteract the progression of ● Exonucleases ● Degradosome De GDelihas, Nicholas. "Small mobile sequences in bacteria display diverse structure/function motifs." Molecular microbiology 67.3 (2008): regorio, Eliana, et al. "Structural organization and functional properties of miniature DNA insertion sequences in Yersiniae." Journal of bacteriology (2006):

Background: Yersinia bacteria ●Yersinia bacteria are extremely pathogenic to humans ●Yersinia plasmids have yet to be analyzed for YPALs ●Yersinia bacteriophages may have instances of YPALs due to parallel virulent evolution with Yersinia strains De GDelihas, Nicholas. "Small mobile sequences in bacteria display diverse structure/function motifs." Molecular microbiology 67.3 (2008): regorio, Eliana, et al. "Structural organization and functional properties of miniature DNA insertion sequences in Yersiniae." Journal of bacteriology (2006):

Questions at Hand Do YPALs exists outside of Yersinia chromosomal DNA? Can any instance of YPAL be found in Yersinia plasmids? Do Yersinia bacteriophages include any instance of YPALs?

YPAL Sequences in Yersinia Bacteriophage? Sequence was searched in Phantome to find any instances of YPALs in all Yersinia phage included in BioBike De GDelihas, Nicholas. "Small mobile sequences in bacteria display diverse structure/function motifs." Molecular microbiology 67.3 (2008): regorio, Eliana, et al. "Structural organization and functional properties of miniature DNA insertion sequences in Yersiniae." Journal of bacteriology (2006):

YPAL Sequences in Yersinia Plasmids? Plasmids for all Yersinia Bacteria were checked in Sequence viewer using the same YPAL sequence

Result & Further Study ●No matches of any instance of YPAL found in Yersinia bacteriophage and Yersinia plasmids in BioBike ●No Sequences similar to YPAL in all Yersinia bacteriophage and Yersinia plasmids in BioBike

Result & Further Study (cont) For further study… ●Find amount of hits of YPALs in each Yersinia strain that has not been documented to date ●Highly conserved regions of YPALs across genus of Yersinia

Works Cited 1. De Gregorio, Eliana, et al. "Enterobacterial repetitive intergenic consensus sequence repeats in yersiniae: genomic organization and functional properties."Journal of bacteriology (2005): Delihas, Nicholas. "Enterobacterial small mobile sequences carry open reading frames and are found intragenically—evolutionary implications for formation of new peptides." Gene regulation and systems biology 1 (2007): Delihas, Nicholas. "Small mobile sequences in bacteria display diverse structure/function motifs." Molecular microbiology 67.3 (2008): De Gregorio, Eliana, et al. "Structural organization and functional properties of miniature DNA insertion sequences in Yersiniae." Journal of bacteriology (2006):