Seqanswers Leaderboard Ad

Collapse

Announcement

Collapse
No announcement yet.
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • 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

  • #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


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

      Comment


      • #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

        Latest Articles

        Collapse

        • seqadmin
          Current Approaches to Protein Sequencing
          by seqadmin


          Proteins are often described as the workhorses of the cell, and identifying their sequences is key to understanding their role in biological processes and disease. Currently, the most common technique used to determine protein sequences is mass spectrometry. While still a valuable tool, mass spectrometry faces several limitations and requires a highly experienced scientist familiar with the equipment to operate it. Additionally, other proteomic methods, like affinity assays, are constrained...
          04-04-2024, 04:25 PM
        • seqadmin
          Strategies for Sequencing Challenging Samples
          by seqadmin


          Despite advancements in sequencing platforms and related sample preparation technologies, certain sample types continue to present significant challenges that can compromise sequencing results. Pedro Echave, Senior Manager of the Global Business Segment at Revvity, explained that the success of a sequencing experiment ultimately depends on the amount and integrity of the nucleic acid template (RNA or DNA) obtained from a sample. “The better the quality of the nucleic acid isolated...
          03-22-2024, 06:39 AM

        ad_right_rmr

        Collapse

        News

        Collapse

        Topics Statistics Last Post
        Started by seqadmin, 04-11-2024, 12:08 PM
        0 responses
        18 views
        0 likes
        Last Post seqadmin  
        Started by seqadmin, 04-10-2024, 10:19 PM
        0 responses
        22 views
        0 likes
        Last Post seqadmin  
        Started by seqadmin, 04-10-2024, 09:21 AM
        0 responses
        17 views
        0 likes
        Last Post seqadmin  
        Started by seqadmin, 04-04-2024, 09:00 AM
        0 responses
        48 views
        0 likes
        Last Post seqadmin  
        Working...
        X