Seqanswers Leaderboard Ad

Collapse

Announcement

Collapse
No announcement yet.
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • 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.

  • #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

    Comment


    • #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


      • #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.

        Comment


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

          Comment

          Latest Articles

          Collapse

          • seqadmin
            Essential Discoveries and Tools in Epitranscriptomics
            by seqadmin


            The field of epigenetics has traditionally concentrated more on DNA and how changes like methylation and phosphorylation of histones impact gene expression and regulation. However, our increased understanding of RNA modifications and their importance in cellular processes has led to a rise in epitranscriptomics research. “Epitranscriptomics brings together the concepts of epigenetics and gene expression,” explained Adrien Leger, PhD, Principal Research Scientist on Modified Bases...
            Yesterday, 07:01 AM
          • seqadmin
            Current Approaches to Protein Sequencing
            by seqadmin


            Proteins are often described as the workhorses of the cell, and identifying their sequences is key to understanding their role in biological processes and disease. Currently, the most common technique used to determine protein sequences is mass spectrometry. While still a valuable tool, mass spectrometry faces several limitations and requires a highly experienced scientist familiar with the equipment to operate it. Additionally, other proteomic methods, like affinity assays, are constrained...
            04-04-2024, 04:25 PM

          ad_right_rmr

          Collapse

          News

          Collapse

          Topics Statistics Last Post
          Started by seqadmin, 04-11-2024, 12:08 PM
          0 responses
          51 views
          0 likes
          Last Post seqadmin  
          Started by seqadmin, 04-10-2024, 10:19 PM
          0 responses
          50 views
          0 likes
          Last Post seqadmin  
          Started by seqadmin, 04-10-2024, 09:21 AM
          0 responses
          44 views
          0 likes
          Last Post seqadmin  
          Started by seqadmin, 04-04-2024, 09:00 AM
          0 responses
          55 views
          0 likes
          Last Post seqadmin  
          Working...
          X