Unconfigured Ad

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts
  • arvi8689
    Member
    • Sep 2011
    • 10

    Exome capture validation

    Hey I am using the agi exome capture kit. My capture is done and now I would like to confirm if my capture worked. What is the best validation method to do so?

    I thought of using a qPCR with primers against 3 exons and 3 introns and compare the dna samples before and after capture. The ideal result should be that the exons are enriched in samples after capture as against introns. But the issue is since I dont have a control I dont know how to calculate a delta delta ct. I am missing a loading control.
    Any suggestions?

    Thanks
    Arvi
  • Heisman
    Senior Member
    • Dec 2010
    • 534

    #2
    Is your goal to validate that the capture worked prior to submitting it for sequencing? If you're going to submit it regardless it will be easy to see how well it worked when you analyze the data. If you want to check before sequencing that is much harder. Did your sample pass the various QC steps throughout the process?

    Comment

    • TonyBrooks
      Senior Member
      • Jun 2009
      • 303

      #3
      The Nimblegen EZ Exome has a simple qPCR QC step which you could adapt
      Pick a few genes that are on your exome capture and design SYBR qPCRs (or use the sequences in the Nimblegen protocol)
      Run 5ng (by Qubit) of pre-capture library (in triplicate) against 5ng (by Qubit) of post-capture (in triplicate). You shouldn't need to know an exact value for E as enrichment should be in the >100 fold region so any differences should be obvious. We just use e=1.9

      ~ Enrichment = 1.9^(ct_of_pre -ct_of_post)

      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.
        07-01-2026, 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

      ad_right_rmr

      Collapse

      News

      Collapse

      Topics Statistics Last Post
      Started by SEQadmin2, Yesterday, 11:08 AM
      0 responses
      6 views
      0 reactions
      Last Post SEQadmin2  
      Started by SEQadmin2, 06-30-2026, 05:37 AM
      0 responses
      11 views
      0 reactions
      Last Post SEQadmin2  
      Started by SEQadmin2, 06-26-2026, 11:10 AM
      0 responses
      19 views
      0 reactions
      Last Post SEQadmin2  
      Started by SEQadmin2, 06-17-2026, 06:09 AM
      0 responses
      53 views
      0 reactions
      Last Post SEQadmin2  
      Working...