Unconfigured Ad

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts
  • tractorsazi
    Junior Member
    • Jan 2012
    • 2

    Problems with the illumina .fastq sequence data annotation

    Does anyone know how I can annotate the .fastq file data resulted from illumina sequencing? I know thw Galaxy portal can be helpful for the trimming and grimmer for my 10 GB sequence file, but I don't know which step's result is a fasta file that is easy to use to annotation.
  • arvid
    Senior Member
    • Jul 2011
    • 156

    #2
    I'm not sure what you mean by annotation here. What do you wish to achieve with your sequence data?

    Comment

    • tractorsazi
      Junior Member
      • Jan 2012
      • 2

      #3
      I wish to achieve a fasta file of my sequencing results with some large contigs that be useful to distinguish the ORFs and their functions using the annotation pipeline. The CLC genomics workbench has the options to achieve this goal, but the free trial version of this software which I downloaded hasn't the highthrouput analysis tool.

      Comment

      • arvid
        Senior Member
        • Jul 2011
        • 156

        #4
        So you wish to de novo assemble your data.

        If it is genomic data, search for "genome de novo assembly" and you'll find plenty of software (ABySS, Velvet, SOAPdenovo etc.). If it is RNA data, search for "transcriptome de novo assembly") and you find other software (e.g. Trinity, Oases, Trans-ABySS etc.).

        You'll need a server with plenty of RAM and computing power to run most of these software, though... For the commercial alternatives (like CLCbio) you need some money and still a decent workstation (32 GB RAM).

        Comment

        Latest Articles

        Collapse

        • GATTACAT
          Reply to Nine Things a Sample Prep Scientist Thinks About Before Sequencing
          by GATTACAT
          Love this - good data definitely starts from good input, and poor input can only give relatively poor data. I particularly like the mention of Nanodrop/absorbance based methods for quantification. It's such a toss up if you'll get an accurate reading or what amounts to a randomly generated number, and a lot of library/sequencing related issues can be traced back to poor quant.
          Today, 11:43 AM
        • 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
        7 views
        0 reactions
        Last Post SEQadmin2  
        Started by SEQadmin2, 06-26-2026, 11:10 AM
        0 responses
        17 views
        0 reactions
        Last Post SEQadmin2  
        Started by SEQadmin2, 06-17-2026, 06:09 AM
        0 responses
        52 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...