Hello
I am using transcriptsByRanges(txdb, gr) to annotate a set of reads with transcript and gene IDs from txdb obtained with makeTranscriptDbFromUCSC(genome = "mm9", tablename = "knownGene").
My question is how to make changes to the txdb to include 10 kb upstream of the transcription start site and 3 kb downstream of the end of the transcript. 
Thanks
Joseph Dhahbi



      
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