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News & Updates Official Release http://pymol.org today, January 14, 2014. New Plugin Bondpack is a a collection of PyMOL plugins for easy visualization of atomic bonds. New Plugin MOLE 2.0 is a new plugin for rapid analysis of biomacromolecular channels in PyMOL. 3D using Geforce PyMOL can now be visualized in 3D using Nvidia GeForce video cards (series 400+) with 120Hz monitors and Nvidia 3D Vision, this was previously only possible with Quadro video cards. New Plugin GROMACS_Plugin is a new plugin that ties together PyMOL and GROMACS. New Software CMPyMOL is a software that interactively visualizes 2D contact maps of proteins in PyMOL. New Script cgo_arrow draws an arrow between two picked atoms. Tips & Tricks Instructions for generating movie PDFs using .mpg movies from PyMOL. Older News See Older News.

Did you know... Iterate The iterate command executes a Python expression for all atoms in a selection. The local namespace exposes all atomic identifiers and properties as read-only Python variables. The global namespace by default is the pymol module namespace, and thus exposes objects like cmd and stored. The order of iteration is that of the internal atom ordering. The alter command is equivalent to iterate, but provides read-write access to the exposed variables. This can for example be used to rename a chain or to assign new b-factors. If changing identifiers which would affect atom ordering, calling sort is necessary to reorder based on the new identifiers. The iterate_state command is similar to iterate, but iterates over the coordinates in the given state and selection, and exposes x, y, z in addition to the atomic identifiers and properties. The alter_state command is equivalent to iterate_state, but allows modification of x, y, z (and atom-state level ..→

A Random PyMOL-generated Cover. See Covers.