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metapredict: A machine learning-based tool for predicting protein disorder.

Last updated March 2024

Current version: metapredict V2-FF (V2.6)

The current recommended and default version of metapredict is metapredict V2-FF (version 2.6). Small increments (2.6.x) may be made as bug fixes or feature enhancements.

For context, V2-FF provides identical predictions to metapredict V2, but via predict_disorder_batch() provides 10-100x improvement in performance on CPUs and GPUs.

To quantify this yourself, run:

import metapredict
metapredict.print_performance(batch=True)
metapredict.print_performance(batch=False)

To compare the number of residues-per-second metapredict V2-FF predicts in batch mode vs. non-batch mode. For CPUs this is typically a 10-20x improvement. If GPUs are available this value can be substantially higher.

Installation

Metapredict is a software package written in Python. It can be installed from PyPI (the Python Package Index) using the tool pip. We always recommend managing your Python environment with conda. If these ideas are foreign to you, we recommend reading up a bit on Python package management and conda before continuing.

TL/DR: Recommended install commands are:

In most situations, the following two commands will ensure all the necessary dependencies are installed and work correctly:

# ensure dependencies are from the same ecosystem (conda)
conda install numpy pytorch scipy cython matplotlib  -c pytorch

# install from PyPI
pip install metapredict

To check the installation has worked run:

metapredict-predict-disorder --help

from the command line; this should yield help info on the metapredict-predict-disorder command.

WARNING: Segfault when mixing conda and pip installs (March 2024)

As of at least PyTorch 2.2.2 on macOS, there are binary incompatibilities between pip and conda versions of PyTorch and numpy. Therefore, it is essential your numpy and PyTorch installs are from the same package manager. metapredict will - by default - pull dependencies from PyPI. However, other packages installed from conda may require conda-dependent numpy installations, which can "brick" a previously-working installation.

Extended installation info

The current stable version of metapredict is available through GitHub or the Python Package Index (PyPI).

To install from PyPI, run:

pip install metapredict

You can also install the current development version from

pip install git+https://[email protected]/idptools/metapredict

To clone the GitHub repository and gain the ability to modify a local copy of the code, run

git clone https://github.com/idptools/metapredict.git
cd metapredict
pip install -e .

Note you will need the -e flag to ensure the cython code compiles correctly, but this also means the installed version is linked to the local version of the code.

This will install metapredict locally. If you modify the source code in the local repository, be sure to re-install with pip.

Documentation

Documentation for metapredict automatically builds from the /doc directory in this repository and is hosted at https://metapredict.readthedocs.io/.

In brief, metapredict provides both command-line tools and a set of user-face functions from the metapredict python module. Both sets of tools are fully documented online.

How can I use metapredict?

Metapredict can be used in four different ways:

  1. As a stand-alone command-line tool (installable via pip - the code in this repository).
  2. As a Python library for integrating into your favorite bioinformatics pipeline (installable via pip - the code in this repository).
  3. As a web-server for examining disorder predictions on individual sequences found at https://metapredict.net/.
  4. NEW as of August 2022: as a Google Colab notebook for batch-predicting disorder scores for larger numbers of sequences: LINK HERE. Performance-wise, batch mode can predict the entire yeast proteome in ~1.5 min.
  5. NEW as of May 2023: as part of the ALBATROSS paper, we provide a colab notebook for predicting IDRs on a proteome-wide scale LINK HERE.

How to cite

If you use metapredict for your work, please cite the metapredict paper:

Emenecker, R. J., Griffith, D. & Holehouse, A. S. Metapredict: a fast, accurate, and easy-to-use predictor of consensus disorder and structure. Biophys. J. 120, 4312–4319 (2021).

Note that in addition to the original paper, there's a V2 preprint; HOWEVER, we ask you only cite the original paper and describe the version being used (V1, V2 or V2-FF).

Emenecker, R. J., Griffith, D. & Holehouse, A. S. Metapredict V2: An update to metapredict, a fast, accurate, and easy-to-use predictor of consensus disorder and structure. bioRxiv 2022.06.06.494887 (2022). doi:10.1101/2022.06.06.494887

Changes

For changes see the changelog.md file in this directory.

Acknowledgements

PARROT, created by Dan Griffith, was used to generate the network used for metapredict. See https://pypi.org/project/idptools-parrot/ for some very cool machine learning stuff.

In addition to using Dan Griffith's tool for creating metapredict, the original code for brnn_architecture.py and encode_sequence.py was written by Dan.

We would like to thank the DeepMind team for developing AlphaFold and EBI/UniProt for making these data so readily available.

We would also like to thank the team at MobiDB for creating the database that was used to train this predictor. Check out their awesome stuff at https://mobidb.bio.unipd.it

Copyright

Copyright (c) 2020-2024, Holehouse Lab - Washington University School of Medicine