Unconfigured Ad

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • drio
    Senior Member
    • Oct 2008
    • 323

    #1

    qseq files versus sequence.txt files

    Does anyone know what how GApipeline filters the reads that go into the final s_#_sequence.txt files ? I would like to know what criteria they use.
    I couldn't find it in the documentation.
    -drd
  • kmcarr
    Senior Member
    • May 2008
    • 1181

    #2
    Here is page 85 from the Pipeline User's Guide which describes the filtering, including what the default method and threshold are.
    Attached Files
    Last edited by kmcarr; 11-04-2009, 01:55 PM.

    Comment

    • drio
      Senior Member
      • Oct 2008
      • 323

      #3
      Thanks!

      I am going to try a little experiment. Map the raw data (qseqs) compared to using
      the filtered data (sequence).

      Intuitively the default filter seems a little bit aggressive, specially for >36bp reads.
      I don't see any problem with aligning the raw data as soon as the aligner takes into
      account the qualities. Presumably reads that would had been removed will have low
      qualities on the first 25bp.

      What are your thoughts?
      -drd

      Comment

      • lcollado
        Member
        • Jun 2009
        • 65

        #4
        I find this thread interesting as we recently got some 50bp data. Should we use the default parameters, which I guess are ideal for 36bp reads, or use some custom ones?
        L. Collado Torres, Ph.D. student in Biostatistics.

        Comment

        Latest Articles

        Collapse

        • SEQadmin2
          Multiomic Liquid Biopsy: What DNA/RNA Panels Reveal That DNA Alone Can’t
          by SEQadmin2



          Tumors contain complex mixtures of cell populations that evolve in response to treatment and host-specific factors. Tissue biopsies provide only static snapshots of a tumor’s state. But what if we could follow that evolution over time using a minimally invasive technique?

          Liquid biopsies can detect tumor-derived material circulating in the bloodstream, providing a way to study treatment response, detect emerging resistance, and discover new biomarkers. Circulating
          ...
          Yesterday, 09:55 AM
        • SEQadmin2
          New Genomics Technologies Take Aim at Long-Standing Limits
          by SEQadmin2


          Researchers using sequencing and genomics tools often have to make trade-offs. They can choose between speed or scale, short reads or long-range information, or targeted panels or a view of the whole transcriptome. New technologies that have been released this year are built to address those tough choices.

          We asked six companies the same four questions to learn about their latest products. The new technologies bring a lot to the table, including rethinking sequencing
          ...
          09-28-2026, 10:25 AM

        ad_right_rmr

        Collapse

        News

        Collapse

        Topics Statistics Last Post
        Started by SEQadmin2, Today, 10:52 AM
        0 responses
        8 views
        0 reactions
        Last Post SEQadmin2  
        Started by SEQadmin2, Yesterday, 05:39 AM
        0 responses
        17 views
        0 reactions
        Last Post SEQadmin2  
        Started by SEQadmin2, 10-13-2026, 09:56 AM
        0 responses
        15 views
        0 reactions
        Last Post SEQadmin2  
        Started by SEQadmin2, 10-09-2026, 11:14 AM
        0 responses
        27 views
        0 reactions
        Last Post SEQadmin2  
        Working...