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  • Setting Up Variant Frequencies in TVC

    Hi everybody,

    Currently, I am using Ion PGM Ampliseq Cancer Panel Hotspot v2 and Torrent Variant Caller.
    Usually I have only few number of coverage, for example 30 of 200base reads. Sometimes this kind of data will not appear in TVC. I was wondering if the coverage of my data is too low or do I set the stringency too high.

    I always set the variant frequency to "somatic" but I am little confused because in the user guide said that for somatic workflows the threshold is set to 4% frequency for SNPs and 20% for indels. But as you can see in the picture, the minimum variant allele is 0.02 (is it equal to 20% or 2%?)


    upload img

    Somatic:

    image hosting websites

    Germline:

    photo sharing sites


    Thank you for your attention, your help is much appreciated.

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