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  • bob-loblaw
    Member
    • Jun 2012
    • 59

    #1

    Difference between .fas and .faa files?

    Aside from the obvious difference in the naming of the file extension, how do these files actually differ? and how do I convert a .fas file to a .faa file?? Thanks
  • maubp
    Peter (Biopython etc)
    • Jul 2009
    • 1544

    #2
    They are both FASTA files, no conversion need - just rename them if you need to.

    The extension *.fas is a common shortening of *.fasta, also *.fa is quite common. These could be protein or nucleotide FASTA data.

    The extension *.faa is used by the NCBI for FASTA Amino Acids, meaning this is a protein FASTA file.

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