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Peptide library design

Project description

pepsyn

Peptide library design

Installation

pepsyn is developed for Python 3.6+ and requires biopython. The CLI uses click.

pip install pepsyn

or for the latest development version

git clone https://github.com/lasersonlab/pepsyn.git
cd pepsyn
python setup.py install

To run the tests

py.test

Usage

pepsyn can be used as a library, but also comes with a CLI.

The main CLI command is pepsyn and it can read from stdin and stdout by specifying - as the input or output. Input and output files are FASTA formatted.

$ pepsyn -h
Usage: pepsyn [OPTIONS] COMMAND [ARGS]...

  pepsyn -- peptide synthesis design

Options:
  -h, --help  Show this message and exit.

Commands:
  prefix      add a prefix to each sequence
  recodesite  remove site from each sequence's CDS by...
  revtrans    reverse translate amino acid sequences into...
  stats       compute some sequence statistics
  suffix      add a suffix to each sequence
  tile        tile a set of sequences

For example, to tile a set of sequences, use the pepsyn tile command. Each subcommand has its own help message with relevant options.

$ pepsyn tile -h
Usage: pepsyn tile [OPTIONS] INPUT OUTPUT

  tile a set of sequences

Options:
  -l, --length INTEGER   Length of output oligos
  -p, --overlap INTEGER  Overlap of oligos
  -h, --help             Show this message and exit.

Commands can be piped into each other. (Note: stdin and stdout are signified with -.)

cat pepsyn/tests/proteins.fasta \
    | pepsyn tile -l 10 -p 3 - - \
    | pepsyn revtrans - - \
    | pepsyn prefix -p ACGGG - - \
    | pepsyn suffix -s TGCTG - - \
    | pepsyn recodesite --site EcoRI --clip-left 5 --clip-right 5 - -

Project details


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