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ProbKnot

ProbKnot is used to predict a maximum expected accuracy structure that can contain pseudoknots.

USAGE: ProbKnot <input file> <ct file> [options]

Required parameters:

<input file> The name of a file containing input data. This input data can be in one of two formats:
  1. Partition function save file (holds base pairing probability data for all pairs)
  2. Sequence file (holds a sequence: .seq or .fasta)
    Note that in order to use a sequence file, the "sequence" flag must be specified (see "--sequence" below).
<ct file> The name of a CT file to which output will be written.

Options which don't require added values:

-d, -D, --DNA This flag only matters if the input file is a squence file and has been identified as such (see "--sequence" below).
Specify that the sequence is DNA, and DNA parameters are to be used.
Default is to use RNA parameters.
-h, -H, --help Display the usage details message.
--sequence Identify the input file as a sequence file.

Options which require added values:

-i, -I, --iterations Specify the number of iterations the calculation will undergo. More iterations can result in more predicted pairs, although a single iteration is generally sufficient.
Default is 1 iteration.
-m, -M, minimum Specify the minimum length accepted for a helix. A post-processing filter removes short helices.
Default is 3 base pairs.

References

  1. Reuter, J.S. and Mathews, D.H.
    "RNAstructure: software for RNA secondary structure prediction and analysis."
    BMC Bioinformatics, 11:129. (2010).
  2. Bellaousov, S., and Mathews, D.H.
    "ProbKnot: Fast Prediction of RNA Secondary Structure Including Pseudoknots."
    Submitted.