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  • Mai Said
    Junior Member
    • Jun 2015
    • 5

    #1

    benchmark blastp

    I am working on a research about blastp. I wanted to run the benchmark that exists in the path ftp://ftp.ncbi.nlm.nih.gov/blast/demo/benchmark/ and I was wondering where can I find the original fasta benchmark database file before makeblastdb was run and I could only find the nr file in the db/fasta directory ftp://ftp.ncbi.nlm.nih.gov/blast/db/fasta but not the subset benchmark. Will you please guide me to where I can find the benchmark fasta file.
  • GenoMax
    Senior Member
    • Feb 2008
    • 7142

    #2
    All the information you need (queries, database etc) is in the tar file: ftp://ftp.ncbi.nlm.nih.gov/blast/dem...ark2013.tar.gz

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    • Mai Said
      Junior Member
      • Jun 2015
      • 5

      #3
      The tar file contains the preformatted database files but I need the database before formatting because I want to call makeblastdb with sorting option to sort database sequences

      Comment

      • GenoMax
        Senior Member
        • Feb 2008
        • 7142

        #4
        You can extract sequences from the pre-formatted database by doing the following:

        Code:
        $ blastdbcmd -db ./benchmark.aa -entry all -outfmt '%f' > protein_seq
        
        $ blastdbcmd -db ./benchmark.nt -entry all -outfmt '%f' > nuc_seq
        Last edited by GenoMax; 06-19-2015, 07:52 AM.

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        • Mai Said
          Junior Member
          • Jun 2015
          • 5

          #5
          Thank you so much. I am using this benchmark for psiblast not blastp. Do you know any benchmark for psi.

          Comment

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