Seqanswers Leaderboard Ad

Collapse

Announcement

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

  • error running STAR

    I am using STAR to map my paired end rna seq data. I keep running into the following error msg.
    EXITING because of FATAL ERROR in input reads: unknown file format: the read ID should start with @ or >
    This was my command line:
    -bash-3.2$ /pathToStarDir/ STAR --genomeDir /pathToGenome/ --readFilesCommand zcat --readFilesIn /pathToFile/587352_1_1.fastq.gz pathToFile/587352_1_2.fastq.gz --runThreadN 3

    When I zless my .fastq.gz file to check the format of the file, the first few lines looks like this:
    @HWI-ST152R_0409:5:1:1451:1993#NAGCTT/1
    GCTGTATCTCTCAGGATTATCACTGATCACACATCCAACCAGTGCCAGCCAAAAGGATGCCCTGAGGCAAAGGGT
    +HWI-ST152R_0409:5:1:1451:1993#NAGCTT/1
    bbd_dee`dcdfefffffeffffffaeeeefdfffffefffeeefeffffffefcffcefffeffadfedbbTcU
    @HWI-ST152R_0409:5:1:1587:1992#TAGCTT/1
    GGCCATCTGATCTATAAATGCGGTGGCATCGACAAAAGAACCATTGAAAAATTTGAGAAGGAGGCTGCTGAGATG
    +HWI-ST152R_0409:5:1:1587:1992#TAGCTT/1
    gecgggggggffgdggfgggfffgddedfbecbcdadfadeg^eaedda^g`cdbdggdgdV^a`X`_``W]V]c

    Has anyone ran into similar problems before? Is it a file problem or there was mistakes in my command ?

    Thanks for the help in advance.

    J.Z

  • #2
    Can you try Brian's repair.sh tool to see if you can fix problems with your fastq files: http://seqanswers.com/forums/showpos...0&postcount=45 I am not sure if it will catch malformed ID headers.

    Alternatively fastqValidator can be used to see if you do have a problem with formatting: http://genome.sph.umich.edu/wiki/FastQValidator

    Comment


    • #3
      I don't see a problem with the first 8 lines, at least. And yes, repair.sh requires correctly-formatted fastq headers; it's only for fixing broken pair ordering. I'm not familiar with how STAR deals with gzipped files, but perhaps you could try decompressing it first?

      Comment

      Latest Articles

      Collapse

      • seqadmin
        Recent Advances in Sequencing Analysis Tools
        by seqadmin


        The sequencing world is rapidly changing due to declining costs, enhanced accuracies, and the advent of newer, cutting-edge instruments. Equally important to these developments are improvements in sequencing analysis, a process that converts vast amounts of raw data into a comprehensible and meaningful form. This complex task requires expertise and the right analysis tools. In this article, we highlight the progress and innovation in sequencing analysis by reviewing several of the...
        Yesterday, 07:48 AM
      • seqadmin
        Essential Discoveries and Tools in Epitranscriptomics
        by seqadmin




        The field of epigenetics has traditionally concentrated more on DNA and how changes like methylation and phosphorylation of histones impact gene expression and regulation. However, our increased understanding of RNA modifications and their importance in cellular processes has led to a rise in epitranscriptomics research. “Epitranscriptomics brings together the concepts of epigenetics and gene expression,” explained Adrien Leger, PhD, Principal Research Scientist...
        04-22-2024, 07:01 AM

      ad_right_rmr

      Collapse

      News

      Collapse

      Topics Statistics Last Post
      Started by seqadmin, Today, 06:57 AM
      0 responses
      9 views
      0 likes
      Last Post seqadmin  
      Started by seqadmin, Yesterday, 07:17 AM
      0 responses
      13 views
      0 likes
      Last Post seqadmin  
      Started by seqadmin, 05-02-2024, 08:06 AM
      0 responses
      19 views
      0 likes
      Last Post seqadmin  
      Started by seqadmin, 04-30-2024, 12:17 PM
      0 responses
      23 views
      0 likes
      Last Post seqadmin  
      Working...
      X