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  • oiiio
    Senior Member
    • Jan 2011
    • 105

    #1

    When viewing a BAM, can you specify regions of a certain coverage?

    Does anyone know of a tool to view only regions of a BAM with specific coverage? Ideally, it would constrain the coverage using either a max or min
  • swbarnes2
    Senior Member
    • May 2008
    • 910

    #2
    You could make a pileup, which would have the depth at every point. Then some kind of script to make a .bed file of all those windows you wanted, and you can apply the .bed file to the .bam with samtools view to get a .bam just at those coordinates.

    You could probably use BEDTools to do much of that. I'm not sure there's an easier way.

    Comment

    • Jim Robinson
      Member
      • May 2009
      • 75

      #3
      Elaborating on this just a little... After creating the bed you can load both the bed and the BAM into IGV. Then click on the name panel over the bed track, and use ctrl-f to skip from one region to the next.

      Comment

      • mgogol
        Senior Member
        • Mar 2008
        • 197

        #4
        I think you could use genomeCoverageBed from bedtools for the first step. I know you could do the second part in R quite easily, but it would take me awhile to figure that one out. Once you have a bed file you could use intersectBed to get a bam just with those coords.

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