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  • TopHat closure-search: what does it do?

    What does the --closure-search option of TopHat do?

  • #2
    I'd also really like to know what this does. I have some sequence data from PE reads with a range of fragment sizes. If some of the reads meet the criteria for the expected inner distance between mates to be <= 50 bp, but some do not, does anyone have an idea how this would affect mapping?

    Comment


    • #3
      From tophat manual:
      Code:
      --closure-search	 Enables the mate pair closure-based search for junctions. Closure-based search should only be used when the expected inner distance between mates is small (<= 50bp)
      I believe it has to work with the following, but haven't test yet.
      Code:
      --min-closure-exon	 During closure search for paired end reads, exonic hops in the potential splice graph must be at least this long. The default is 50.
      --min-closure-intron	 The minimum intron length that may be found during closure search. The default is 50.
      --max-closure-intron	 The maximum intron length that may be found during closure search. The default is 5000.

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      • #4
        Perhaps I should be more specific.
        What is the mate pair closure-based search for junctions?

        Comment


        • #5
          Did one of you guys find out what this does? I am also curious.

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