Seqanswers Leaderboard Ad

Collapse

Announcement

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

  • Tophat: segment join failed with err = -11

    Hello all,
    I am attempting to use Tophat to analyze some RNA-Seq data I recently acquired for Soybean. During my run, I received an error stating that tophat failed when trying to join segment hits. Below is the output:

    [Mon Feb 15 16:38:06 2010] Beginning TopHat run (v1.0.12)
    -----------------------------------------------
    [Mon Feb 15 16:38:06 2010] Preparing output location ./tophat_out/
    [Mon Feb 15 16:38:06 2010] Checking for Bowtie index files
    [Mon Feb 15 16:38:06 2010] Checking for reference FASTA file
    Warning: Could not find FASTA file /home/weeks/andrew/soybean_database/soybean_cds.fa
    [Mon Feb 15 16:38:06 2010] Reconstituting reference FASTA file from Bowtie index
    [Mon Feb 15 16:38:34 2010] Checking for Bowtie
    Bowtie version: 0.12.1.0
    [Mon Feb 15 16:38:34 2010] Checking reads
    seed length: 50bp
    format: fastq
    quality scale: --phred33-quals
    [Mon Feb 15 17:00:17 2010] Mapping reads against soybean_cds with Bowtie
    [Mon Feb 15 19:36:11 2010] Joining segment hits
    [FAILED]
    Error: Segment join failed with err = -11


    Does anyone know what this error might be caused by? I'm not sure if it has something to do with my fastq read data, but here is an example of my reads in fastq format:

    9B=6&?@<=<@@B@97@B<B@@B=2@9;?B;57;3<BB;?>@83<A;@
    @HWI-EAS258_1_1_7_1218#0/1
    CAGGNTTCAAAACTACAAAAGACAACTATGTAGAAACACGGTGGAGTGGG
    +
    BC@:&>BCB=CCC?;?CAA==BCC@CB@>B2AC7@C@@,<>5;BB>34CB
    @HWI-EAS258_1_1_7_214#0/1
    GAAANTTCTGGAGAAGGGGAGTGGCATTGAGCGCCCTGGTGATCTTGATG
    +
    5@C?&<CC@@2@5CCC;@5CB;CACCCC5ABA6CBCCBCCACCCBB>CC<
    @HWI-EAS258_1_1_7_1921#0/1
    GGAACATCGTATCTGCTAAACTAAACCCACCCTCTTTGTAACCACAATGG


    Thank you for your help.

  • #2
    What parameters did you use in your command line input?

    Comment


    • #3
      I essentially just followed default parameters this time. My command line was as follows:

      [andrew@veeshan tophat_analysis]$ /arch/tophat/tophat ~/soybean_database/soybean_cds ../reads/soybean_control_1_sequence.fq,../reads/soybean_control_2_sequence.fq,../reads/soybean_control_3_sequence_gr.fq

      Comment


      • #4
        I realize that I am resurrecting a dead post, but in the interest of documentation, I also got the "Segment join failed with err = -11" error from long_spanning_reads in version 1.1.4. By bisecting the fastq file I was able to track it down to a single read that spanned a splice junction over an incorrectly annotated gene in the GTF file ("exon number" out of sequence). Updating the GTF fixed the behavior.

        Comment


        • #5
          Originally posted by bcalder View Post
          I realize that I am resurrecting a dead post, but in the interest of documentation, I also got the "Segment join failed with err = -11" error from long_spanning_reads in version 1.1.4. By bisecting the fastq file I was able to track it down to a single read that spanned a splice junction over an incorrectly annotated gene in the GTF file ("exon number" out of sequence). Updating the GTF fixed the behavior.
          Could you share which gene is incorrectly annotated because I have the same problem but I have no idea how to find the incorrectly annotated gene?

          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
          23 views
          0 likes
          Last Post seqadmin  
          Started by seqadmin, 04-10-2024, 10:19 PM
          0 responses
          24 views
          0 likes
          Last Post seqadmin  
          Started by seqadmin, 04-10-2024, 09:21 AM
          0 responses
          21 views
          0 likes
          Last Post seqadmin  
          Started by seqadmin, 04-04-2024, 09:00 AM
          0 responses
          52 views
          0 likes
          Last Post seqadmin  
          Working...
          X