Identification of adenovirus new splice sites
Sammanfattning: RNA splicing is a process where introns are removed and exons are joined together. Human adenovirus type 2 pre-mRNAs undergoes intensive alternative splicing and produce more than 40 differently spliced mRNAs. This thesis work is focused on the identification of new splice sites in adenovirus. By virtue of Illumina mRNA sequencing technology we have identified 255 splice sites. Splice site analysis of the introns revealed the presence of three types of splice sites GT-AG (61.2%), GC-AG (25.9%) and AT-AC (12.9%). Among 255 splice sites, 224 were new. Significantly, more than 50% of the new splice sites were located in the major late transcription unit on the positive strand of adenovirus DNA. Three new splice sites; 17452-29489 (GC-AG) located on the negative strand of adenovirus DNA in the E2 region, 9668-20346 (AT-AC) and 9699-30505 (GC-AG) on the positive strand of adenovirus DNA in the major late transcription unit were further confirmed by PCR analysis.
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