Unconfigured Ad

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts
  • FerdinandvM
    Junior Member
    • Jul 2013
    • 2

    ScriptSeq - 2nd peak @ 550bp

    Hi
    I have been preparing libraries from approx 400ng total RNA, mRNA enrichment, using the ScriptSeqV2 kit.
    At the end I amplify with 12 cycles and I get a profile with a 2nd peak around 550bp. I have not been able to get an explanation for this yet.

    If somebody has an idea I would be grateful.

    Thanks Ferdinand

    P.S. Profile attached.
    Attached Files
  • Olaf Blue
    Member
    • Nov 2010
    • 58

    #2
    Did you quantify the input RNA for the Scriptseq library? The kit works best with 500 pg to 50 ng input.

    Comment

    • FerdinandvM
      Junior Member
      • Jul 2013
      • 2

      #3
      No, but assuming that mRNA will never be more than 10% of the total RNA I should be in range.
      Could it be an issue with the fragmentation?

      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
      • SEQadmin2
        Single-Cell Sequencing at an Inflection Point: Early Impacts of New Platforms and Emerging Trends
        by SEQadmin2


        With the launch of new single-cell sequencing platforms in 2026, the field stands at an exciting inflection point. This article surveys the most impactful advances in the field and discusses how they’re reshaping research in cancer, immunology, and beyond.


        Introduction

        Single-cell sequencing technologies have undergone remarkable advances over the past decade, transitioning from low-throughput experimental approaches to highly scalable platforms capable of...
        05-22-2026, 06:42 AM

      ad_right_rmr

      Collapse

      News

      Collapse

      Topics Statistics Last Post
      Started by SEQadmin2, 06-17-2026, 06:09 AM
      0 responses
      21 views
      0 reactions
      Last Post SEQadmin2  
      Started by SEQadmin2, 06-09-2026, 11:58 AM
      0 responses
      40 views
      0 reactions
      Last Post SEQadmin2  
      Started by SEQadmin2, 06-05-2026, 10:09 AM
      0 responses
      46 views
      0 reactions
      Last Post SEQadmin2  
      Started by SEQadmin2, 06-04-2026, 08:59 AM
      0 responses
      49 views
      0 reactions
      Last Post SEQadmin2  
      Working...