The Bio-Web > Python CGI Scripts  >  DNA Protein Sequence Randomizer

This application supports IUPAC characters.
If you select the "Clean Sequence" option, every number, space, tab, slash or non-relevant character will be stripped out of from the input sequence

For details on IUPAC characters usage see here

Paste here your DNA or Protein sequence in any format and then select the relevant options below
For server load reasons there is an input limit of 500 CHARACTERS

- To clean or no to clean -

  • Select Alphabet
    Clean and Randomize
    Just Randomize
    Number of randomization cycles
    • Select Alphabet (required if "clean" is selected)

  • Most used:
    unambiguous DNA: GATC
    Protein Letters: ACDEFGHIKLMNPQRSTVWY
    unambiguous RNA, allowed: GAUC

  • Other Alphabets:
    ambiguous DNA, allowed: GATCRYWSMKHBVDN
    ambiguous RNA, allowed: GAUCRYWSMKHBVDN
    Protein Letters: ACDEFGHIKLMNPQRSTVWY
    Protein, Extended: ACDEFGHIKLMNPQRSTVWYBXZ

  • Output options
    UPPER CASE
    lower case

    Optional: include numbering and line breaks every:
    nucleotides/residues (0=do not use this option)

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    A web application written in Python by Andrea Cabibbo