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  • NextGenSeq
    Senior Member
    • Apr 2009
    • 482

    #1

    v3 Flowcells and Reagents?

    Has anyone run the new v3 flowcells and reagents on the HiSeq2000? We need to purchase more reagents but I am hesitant to switch over without feed back from other people.
  • dhinerfeld
    Member
    • May 2008
    • 12

    #2
    We haven't but will be soon. As I understand it, V3 will soon be the only option from Illumina. I actually have a question about how much library to load on the V3 kits to get in the range of 800k clusters/mm^2. On the V2 flow cells, we get about 600K with 9pm loaded. We titrated the load on the V2 lanes and the resulting cluster densities increased linearly with the load, to a point. In moving to a larger lane, I don't think the same would be true. Does anyone have experience with this?

    Comment

    • GW_OK
      Senior Member
      • Sep 2009
      • 411

      #3
      We'll be transitioning to v3 soon as well. Our FAS suggested starting at 12pM.

      Comment

      • NextGenSeq
        Senior Member
        • Apr 2009
        • 482

        #4
        Note the optics of your HiSeq have to be recalibrated before running v3 flowcells and reagents. The Y coordinates in the config file needs updating by using a beaded flow cell by your service engineer.

        Comment

        • GenoMax
          Senior Member
          • Feb 2008
          • 7142

          #5
          Something to make a note of: The quality table for the new, v3 kits has a range from “B” to “m" per Illumina tech support.

          Comment

          • pmiguel
            Senior Member
            • Aug 2008
            • 2328

            #6
            So now the highest quality value is 45? What was it previously?

            --
            Phillip

            Comment

            • GenoMax
              Senior Member
              • Feb 2008
              • 7142

              #7
              Originally posted by pmiguel View Post
              So now the highest quality value is 45? What was it previously?

              --
              Phillip
              It was 40 (http://en.wikipedia.org/wiki/FASTQ_format).

              Comment

              • pmiguel
                Senior Member
                • Aug 2008
                • 2328

                #8
                Well the unavoidable cheap shot at Illumina is: kind of like having an amplifier that goes up to "11"?

                Looks like the highest ordinal for a printable ascii char is "62" for "~". Roughly one error in 4 million base calls. For a 33 offset encoding you can reach a quality score of "93". One error in 8 trillion base calls.

                --
                Phillip

                Comment

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