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News & Updates
Official Release	PyMOL v2.3 has been released on February 11, 2019.
POSF	New PyMOL fellows announced for 2018-2019
Tutorial	Plugins Tutorial updated for PyQt5
New Plugin	ProBiS H2O is a new plugin for identification of conserved waters in protein structures.
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...
Retain order The retain_order setting keeps atoms in the original order, instead of sorting them by atom identifiers. The "original order" is defined by the rank property, so technically with retain_order=on, PyMOL performs a rank-assisted sort. Setting retain_order on or off triggers resorting of atoms. File Format Specifics vdb: Since PyMOL 1.8.6, retain_order is automatically set for VIPERdb files, because they don't have unique chain identifiers cif: When retain_order=on, then PyMOL will skip loading of missing residues, because it depends on sorting Syntax set retain_order,[0,1] Example Original PDB: <source lang="diff"> ATOM 1 CH3 ACE A 1 33.160 24.100 12.400 1.00 0.00 ATOM 2 HH31 ACE A 1 32.860 24.830 11.650 1.00 0.00 ATOM 3 HH32 ACE A 1 33.800 23.390 11.880 1.00 0.00 ATOM 4 HH33 ACE A 1 32.250 23.650 12.770 1.00 ..→

A Random PyMOL-generated Cover. See Covers.

File Format Specifics