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Mapping PCR primers to human genome

Hello,

I have around 5000 primers pairs that I need to map against the human genome. So far I am using a two steps approach, creating an index file then mapping these indexes against the reference

  1. bwa aln -o 0 -n 1 ref.fasta primers.fasta > primers.fai

  2. bwa samse ref.fasta primers.fai primers.fasta > primers.sam

I am using these options:

-o set to zero to avoid gap opening.
-n set to 1 for only one mismatch

Does anyone have this kind of problem, or anyone have a better solution? Different type of mapper? Dragen? Blast?

Thanks for your help

mapping primer aligner

Thanks for the pointer , but I have more than 6000 primer pairs.

That likely uses blat (another tool written by Jim Kent). As long as you are an academic user you can download blat locally and run it. You could also run a program called gfserver (if you have the right hardware available). You can read about both tools here: http://hgdownload.soe.ucsc.edu/admin/exe/linux.x86_64/

Super, thanks, I will try.

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