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The community-run support site for the PyMOL molecular viewer.
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News & Updates
New Setup	PyMOL-open-source-windows-setup v3.1 has been released on January 20, 2025. More information under Windows Install.
New Plugin	PySSA aims to combine PyMOL and ColabFold to enable the prediction and analysis of 3D protein structures for the scientific end-user. v1.0 has been released on July 10, 2024.
Official Release	PyMOL v3.0 has been released on March 12, 2024.
New Plugin	CavitOmiX calculate Catalophore™ cavities, predict protein structures with OpenFold by NVIDIA-BioNeMo, ESMFold and retrieve Alphafold models
Official Release	PyMOL v2.5 has been released on May 10, 2021.
Python 3	New Python 3 compatibility guide for scripts and plugins
POSF	New PyMOL fellowship announced for 2022-2023
Tutorial	Plugins Tutorial updated for PyQt5
New Plugin	PICv is a new plugin for clustering protein-protein interactions and visualization with available data from PDBe
Selection keywords	New polymer.protein and polymer.nucleic selection keywords. Thanks everyone who participated in the poll!
Plugin Update	MOLE 2.5 is an updated version of channel analysis software in PyMOL
New Script	dssr_block is a wrapper for DSSR (3dna) and creates block-shaped nucleic acid cartoons
Older News	See Older News.

Did you know...
Helicity check helicity_check shows the evolution of O—N distances over an amino acid sequence See for further info: "Models for the 3(10)-helix/coil, pi-helix/coil, and alpha-helix/3(10)-helix/coil transitions in isolated peptides". Protein Sci ROHL and DOIG 5 (8) 1687. Uses: in the pymol console: >run pymol_helicity_check.py ----> select some consecutive amino acids - this is nicely done with the Display->Sequence tool >helicity_check() installing helicity_check copy pymol_helicity_check.py in $PYMOL_INSTALL_DIR/modules/pmg_tk/startup launch Pymol: you now have a new option in the Plugin menu helicity_check uses gnuplot to display its results. As a consequence gnuplot needs to be installed. This plugin was tested on linux only, it might need some modifications to run on other OSes. (hints: launching gnuplot and path to dumpfile) <source lang="python"> pymol_helicity_check.py Copyright (c) 2006-2007 Julien ..→