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  • jnfass
    Member
    • Aug 2008
    • 88

    #1

    gigaBayes output format ... inconsistent with manual?

    I'm looking at my gigaBayes output, for which I've specified --o 3 so that I get individual allele counts, but not listings of each read. I'm getting a sub-field in the 9th column of the gff output that looks like this:

    individualAlleleCounts=MID11:T|1|40|+|1|40|-|0|0&C|0|0|+|0|0|-|0|0,MID9:T|0|0|+|0|0|-|0|0&C|1|40|+|1|40|-|0|0

    ... but the manual only illustrates this field like so:

    individualAlleleCounts=Person1:G|4|120&A|1|30,Person2:G|2|60&A|2|60

    So, I understand that my results indicate, for individual "MID11", one read with a "T" base at this position, with base quality = 40. But what are the "+|1|40|-|0|0" fields ...? Sometimes they have positive values after the "+", and sometimes after the "-" ... and I don't see these "+" or "-" fields in the example output, nor can I find an explanation in the manual.

    Does anyone know what these fields mean? I'm concerned that I'm missing something that gigaBayes is trying to tell me ...

    ~Joe
  • Brad Chapman
    Junior Member
    • Nov 2009
    • 2

    #2
    Joe;
    I puzzled over that for a bit too. The individuals are separated by ','s and the bases within each individual by '&'s. For each base there are 3 components:

    T|1|40| -- Base name, number of reads and quality
    +|1|40| -- Number of reads and quality on positive strand
    -|0|0 -- Number of reads and quality on negative strand

    This lets you tease apart positive and negative strand contributions to a call. Hope this helps,
    Brad

    Comment

    • jnfass
      Member
      • Aug 2008
      • 88

      #3
      ahhh! -- of course! Thanks Brad -- very helpful.
      ~Joe

      Comment

      • vinodyadav2083
        Junior Member
        • Feb 2011
        • 1

        #4
        I have a quick question regarding GigaBayes GFF file format. I know it is now obsolete, and replaced by other tools. I couldn't find the manual either. But for a technical reason we desperately need to understand and use this format.

        In the example below,in the column [AlleleA_Count], the first row has entry [ 1|0, 1/0|0/0 ]. Similarly,[ AlleleB_Count = 6|8, 2/4|1/7 ] What do these numbers mean in these two columns?

        Chr SNV Start End SNV_Pvalue AlleleA AlleleA_Count AlleleB AlleleB_Count PR1701N///PR1701T_Genotype PR1701N///PR1701T_Genotype_Pvalue Status Allele Gene_Location Exon_Location SNV_Diff PR1701T

        1 deletion 54723 54723 0.993229 T 1|0, 1/0|0/0 - 6|8, 2/4|1/7 T/-|-/- 0.986443|0.995399 Novel XX///XX Unkn NA 0 0

        A quick reply will be greatly appreciated.
        Many thanks in anticipation,

        Comment

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