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polyply

codecov Build Status PyPI version license GitHub Workflow Status arXiv DOI:10.1038/s41467-021-27627-4

Functionality

Polyply is a python suite designed to facilitate the generation of input files and system coordinates for simulating (bio)macromolecules such as synthetic polymers or polysaccharides. Input files can be generated either from user specified building blocks or by using the polymers available in the library. The library currently includes polymer definitions for the GROMOS (2016H66 & 54A6), OPLS, Parmbsc1, and Martini (2 & 3) force-fields. Coordinates are generated by a multiscale random-walk protocol that is able to generate condensed phase systems at target density, as well as more heterogeneous systems such as aqueous two phase systems. In addition, polyply allows to tailor initial chain conformations by providing a build file. For example, the persistence length can be used to control the initial chain dimensions. The quick start section in the wiki gives an overview of the most important commands. In addition, tutorials are provided for more in-depth information on how to use the program. Tutorials include how to generate Martini polymer systems and write input files. More details on the algorithm and verification can be found in the publication.

Make sure to always verify the results and give appropriate credit to the developers of the force-field, molecule parameters and this program.

Quick references

Installation Guide
FAQs
Submissions to Martini Polymer Library
Tutorial: Martini Polymers
Tutorial: GROMOS Polymers
Tutorial: PEGylated lipid bilayers

Contributions & Support

We are happy to accept submissions of polymer parameters to the polyply library. To submit parameters simply open an issue. More details on submitting parameters can be found here. The code development of polyply is done on github. Contributions are welcome as bug reports and pull requests from everyone. We are also happy to discuss any of your projects or hear about how you used polyply in your research project. Let us know on the discussions board or by tweeting with #CG_MARTINI or #polyply.

Citation

@article{Grunewald2022Polyply,
  title={Polyply; a python suite for facilitating simulations of (bio-) macromolecules and nanomaterials},
  author={Gr{\"u}newald, Fabian and Alessandri, Riccardo and Kroon, Peter C and 
  	  Monticelli, Luca and Souza, Paulo CT and Marrink, Siewert J},
  journal={Nature Communications},
  volume={13},
  pages={68},
  doi={https://doi.org/10.1038/s41467-021-27627-4},
  year={2022}
}

License

Polyply is distributed under the Apache 2.0 license.

Copyright 2020 University of Groningen

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

	http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

The full text of the license is available in the source repository.

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