Unconfigured Ad

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • ghbore
    Junior Member
    • Nov 2010
    • 2

    #1

    Tophat output BAM file ISIZE Error

    Dear All,
    I am trying to map strand-specific pair-end reads using Tophat v1.1.4, but in the result BAM file 'ISIZE' or 'TLEN' field is identical to ZERO all the time. Take some hits for example:
    A8054YABXX:8:1:17161:19551#ATCACGAT 163 chr1 395709 255 100M = 395803 0 GCGCCAGTCGCAGAGGAAGATGGCGTCGCGAAGGCTGGGGTCGTTTCTGCGCGGGCTGCCGGCGCTGCTACTGCTGATGCTGTTCTTGCTTGGGCCCTGG GGGGGGGGGGGGGGGGBGGFDGGGGDFFFFDFGGGGGGGGAFFDFEEEEEGGGFGGGGDGGG?E?EFDAAEC=CAEBBDCEEAE=ABA?########### NM:i:0 NH:i:1 XS:A:+
    A8054YABXX:8:4:14320:96976#ATCACGAT 163 chr1 395709 255 100M = 395803 0 GCGCCAGTCGCAGAGGAAGATGGCGTCGCGAAGGCTGGGGTCGTTTCTGCGCGGGCTGCCGGCGCTGCTACTGCTGATGCTGTTCTTGCTTGGGCCCCGG GGGGGGGEGGGGGDGGGFGGGGGFGAFFFFFFDFFFEGGGBEEAEFFFFFGGGEGG?GDG?DDDBBA?=CEBCAECB:A::??C5?B############# NM:i:1 NH:i:1 XS:A:+

    The Run Command Line is:
    Code:
    tophat-1.1.4.Linux_x86_64/tophat --mate-inner-dist 100 --min-anchor-length 8 --splice-mismatches 0 --max-multihits 100 --output-dir tophat-114_out --num-threads 6 --solexa1.3-quals --coverage-search --microexon-search --library-type fr-firststrand --segment-mismatches 2 --segment-length 25 bowtie_index L1_1.fq L1_2.fq
    I do not know what's wrong. And any help would be appreciated. Thanks ahead!
  • ghbore
    Junior Member
    • Nov 2010
    • 2

    #2
    What's more, the 'MAPQ' field is also non-informative, because the statistic result is (do '|cut -f5 |sort -n |uniq -c'):
    64581 0
    256873 1
    1525878 3
    23635482 255

    Comment

    • chenjy
      Member
      • Oct 2010
      • 22

      #3
      i'd like to lend a hand, however, i encountered the same problem~~~

      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
        ...
        10-14-2026, 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, 10-22-2026, 11:13 AM
      0 responses
      22 views
      0 reactions
      Last Post SEQadmin2  
      Started by SEQadmin2, 10-22-2026, 10:48 AM
      0 responses
      19 views
      0 reactions
      Last Post SEQadmin2  
      Started by SEQadmin2, 10-15-2026, 10:52 AM
      0 responses
      36 views
      0 reactions
      Last Post SEQadmin2  
      Started by SEQadmin2, 10-14-2026, 05:39 AM
      0 responses
      42 views
      0 reactions
      Last Post SEQadmin2  
      Working...