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  • cole tapnell paper in 2012 describing RNA seq experiment

    hello,

    I have been trying to do analysis of RNA seq data, using the protocol given by tapnell paper in 2012 >> http://www.nature.com/nprot/journal/...2012.016.html#

    I was trying to build bowtieIndex using command specified in paper
    command was..
    $ ln –s ./Drosophila_melanogaster/Ensembl/BDGP5.25/Sequence/BowtieIndex/genome.*. \

    bu I am getting error>>
    ln: target `./Drosophila_melanogaster/Ensembl/BDGP5.25/Sequence/BowtieIndex/genome.rev.2.ebwt' is not a directory

    Please help me to sort out so that I could run this command

    tophat -p 8 -G genes.gtf -o C1_R1_thout genome C1_R1_1.fq C1_R1_2.fq

  • #2
    Originally posted by ajay87 View Post
    hello,

    I have been trying to do analysis of RNA seq data, using the protocol given by tapnell paper in 2012 >> http://www.nature.com/nprot/journal/...2012.016.html#

    I was trying to build bowtieIndex using command specified in paper
    command was..
    $ ln –s ./Drosophila_melanogaster/Ensembl/BDGP5.25/Sequence/BowtieIndex/genome.*. \

    bu I am getting error>>
    ln: target `./Drosophila_melanogaster/Ensembl/BDGP5.25/Sequence/BowtieIndex/genome.rev.2.ebwt' is not a directory

    Please help me to sort out so that I could run this command

    tophat -p 8 -G genes.gtf -o C1_R1_thout genome C1_R1_1.fq C1_R1_2.fq
    There is an extra "\" (highlighted in red and bold above) at the end of your link command. You may need to replace that with a "."

    You are not actually "building" the indexes but are only creating a link to the index files you downloaded with the test data in this case.

    Comment


    • #3
      Thanks, this problem is solved.

      Comment


      • #4
        I'm having the same trouble.

        $ ln –s ./Drosophila_melanogaster/Ensembl/BDGP5.25/Sequence/BowtieIndex/genome.*.

        link genome.*. is marked red in linux console and I can't run the following command to finish the analysis.

        Could anyone explain explicitly how to resolve this?

        Even I replace "\" with "." it doesn't work for me.

        Comment

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