Unconfigured Ad

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts
  • jmlabioinfo
    Junior Member
    • Apr 2019
    • 1

    Tile is missing

    Hi all,

    I received some fastq files from a PE HiSeq and when I tried to isolate N reads using the "fastq_illumina_reads -N" I got the following error:

    Input error: file 'STDIN' line 1: Expecting Illumina-CASAVA1.8 ID line structure (@<instrument>:<run number>:<flowcell ID>:<lane>:<tile>:<x-pos>:<y-pos> <read>:<is filtered>:<control number>:<index sequence>) - got '@HS34_23148:4:1313:16347:42480/1' (Can't extract 'Tile’)



    The header of the file shows:
    @HS34_23148:4:2106:12625:73859/2
    CACCAGCTGAGAGAGATGCTCGCCGTTGACTGACGAACTGAATTCCCAGTTCACGGCGGTATGGAATACCGTCGT
    +
    BBBBBFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF
    @HS34_23148:4:1114:12855:77248/2
    CTCGCCGTTGACTGACGAACTGAATTCCCAGTTCACGGCGGTATGGAATACCGTCGTCGCAGAGCTCAACGGTGA
    +
    BBBBBFFFFFFFFFFFFFFFFFFFBFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFBFFFFFFFFFFFFF
    @HS34_23148:4:1311:2663:94744/2
    CTCGACAGATATTGATTGTCGTCACCGTTGAGCTCTGCGACGACGGTATTCCATACCGCCGTGAACTGGGAATTC

    Does anyone already get the same problem with the tile coordinates?
    (I could ask the facility who sent me the files an explanation but I'm not sure if the problem come from me or not)

    Thank you
  • kmcarr
    Senior Member
    • May 2008
    • 1181

    #2
    Originally posted by jmlabioinfo View Post
    Hi all,

    I received some fastq files from a PE HiSeq and when I tried to isolate N reads using the "fastq_illumina_reads -N" I got the following error:

    Input error: file 'STDIN' line 1: Expecting Illumina-CASAVA1.8 ID line structure (@<instrument>:<run number>:<flowcell ID>:<lane>:<tile>:<x-pos>:<y-pos> <read>:<is filtered>:<control number>:<index sequence>) - got '@HS34_23148:4:1313:16347:42480/1' (Can't extract 'Tile’)



    The header of the file shows:
    @HS34_23148:4:2106:12625:73859/2
    CACCAGCTGAGAGAGATGCTCGCCGTTGACTGACGAACTGAATTCCCAGTTCACGGCGGTATGGAATACCGTCGT
    +
    BBBBBFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF
    @HS34_23148:4:1114:12855:77248/2
    CTCGCCGTTGACTGACGAACTGAATTCCCAGTTCACGGCGGTATGGAATACCGTCGTCGCAGAGCTCAACGGTGA
    +
    BBBBBFFFFFFFFFFFFFFFFFFFBFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFBFFFFFFFFFFFFF
    @HS34_23148:4:1311:2663:94744/2
    CTCGACAGATATTGATTGTCGTCACCGTTGAGCTCTGCGACGACGGTATTCCATACCGCCGTGAACTGGGAATTC

    Does anyone already get the same problem with the tile coordinates?
    (I could ask the facility who sent me the files an explanation but I'm not sure if the problem come from me or not)

    Thank you
    It looks like you got hold of a very old (in Illumina time scale) FastQ file. Have a look at the Illumina sequence identifiers discussion on the FastQ format Wikipedia page. The sequence headers in your file are the pre-CASAVA 1.8 format. The software you are trying to use (fastq_illumina_reads) is expecting the header format to be the post-CASAVA 1.8 format. I can't remember when that format version was first introduced but it was years ago.

    What software package is the fastq_illumina_reads program from? Does it have a command line option to switch between the old and new FastQ sequence ID line formats?

    Comment

    Latest Articles

    Collapse

    • SEQadmin2
      Nine Things a Sample Prep Scientist Thinks About Before Sequencing
      by SEQadmin2


      I’m not a sequencing expert. I’m a purification scientist who uses NGS to evaluate workflows my group develops. With this perspective, we think about the sample first and the NGS workflow second. The sequencer is an exceptionally honest reporter, but it can only report on what you give it, so whether you get clean, interpretable data from an NGS workflow is largely determined before you begin.

      Here are nine questions we think about, in roughly the order they matter, before...
      06-18-2026, 07:11 AM
    • SEQadmin2
      From Collection to Sequencing: Why Sample Preparation and Preservation Define Sequencing Data
      by SEQadmin2


      Data variability is still an issue in sequencing technologies despite the advances in reproducibility and accuracy of these platforms. But the problem does not originate in the sequencing itself, but in the previous steps, before the sample reaches the sequencer.


      The first step is collection, followed by preservation and sample preparation for analysis. Most scientists overlook those steps, but not being careful might just be skewing the experiment’s results.
      ...
      06-02-2026, 10:05 AM

    ad_right_rmr

    Collapse

    News

    Collapse

    Topics Statistics Last Post
    Started by SEQadmin2, Yesterday, 05:37 AM
    0 responses
    6 views
    0 reactions
    Last Post SEQadmin2  
    Started by SEQadmin2, 06-26-2026, 11:10 AM
    0 responses
    16 views
    0 reactions
    Last Post SEQadmin2  
    Started by SEQadmin2, 06-17-2026, 06:09 AM
    0 responses
    50 views
    0 reactions
    Last Post SEQadmin2  
    Started by SEQadmin2, 06-09-2026, 11:58 AM
    0 responses
    110 views
    0 reactions
    Last Post SEQadmin2  
    Working...