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  • upenn_ngs
    Member
    • Sep 2009
    • 70

    library prep by transposition



    what are thoughts on this new method? no need for a covaris, and low input. interested in using before capture protocol, i am concerned the transposome complex will not yield fragments representative of entire genome.
  • ECO
    --Site Admin--
    • Oct 2007
    • 1360

    #2
    Moving this to the library prep forum as it's applicable to 454 (and probably solid) as well.

    Comment

    • Tom Haltern
      Junior Member
      • Feb 2010
      • 7

      #3
      size distribution using transposition

      I heard about the new technology as well. I was just wondering what the size distribution looks like afterwards. As far as I know there is no need to do it. Thanks.

      Comment

      • upenn_ngs
        Member
        • Sep 2009
        • 70

        #4
        here is the distribution with bioanalyzer for a full reaction with 10 pcr cycles:



        and for 1/5 scaled down reaction with 15 pcr cycles:

        Comment

        • upenn_ngs
          Member
          • Sep 2009
          • 70

          #5
          here is the distribution with bioanalyzer for a full reaction with 10 pcr cycles:

          [IMG][/IMG]

          and for 1/5 scaled down reaction with 15 pcr cycles:

          http://www.postimage.org/image.php?v=PqE_Lh9[IMG][/IMG]

          Comment

          • krobison
            Senior Member
            • Nov 2007
            • 734

            #6
            You should check with your capture reagent vendor -- one of the problems seen with Illumina libraries is "daisy-chaining" of fragments via the adapters which brings in off-target material. Nextera uses custom adapters, so any blocking oligos supplied in the kit won't be correct.

            Comment

            • flxlex
              Moderator
              • Nov 2008
              • 412

              #7
              @upenn_ngs: Were this size distributions for Illumina libraries?

              Comment

              • mclp
                Junior Member
                • Oct 2008
                • 2

                #8
                what about ends fragments ?

                Hi all,
                This fragmentation seems very interesting by its low input DNA and its relative simplicity!
                I am wondering about the non representativity of ends fragments with this fragmentation except with a previous step like circularization or adding primers.
                Is that makes sense ?

                Comment

                • upenn_ngs
                  Member
                  • Sep 2009
                  • 70

                  #9
                  yes, this is illumina library prep. although there is a great time saving, a fragmentation and ligation protocol with NEB enzyme is still much more cost effective.

                  Comment

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