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News & Updates 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... Fnab fnab builds nucleic acid entities from sequence. The sequence must be specified in one-letter code. Only one fragment can be created at a type (no spaces allowed unlike the 'fab' command). Similar functionality is also provided by the graphical Builder in "Nucleic Acid" mode. New in PyMOL version 2.3 USAGE fnab input [, name [, type [, form [, dbl_helix ]]]] ARGUMENTS input = string: Nucleic Acid sequence in one-letter code name = string: name of object to create or modify {default: obj??} mode = string: "DNA" or "RNA" {default: "DNA"} form = string: "A" or "B" {default: "B"} dbl_helix = bool (0/1): flag for using double helix in DNA EXAMPLE # Create default (B-DNA) chain fnab ATGCGATAC # Create B-DNA chain with specific name fnab ATGCGATAC, name=myDNA, mode=DNA, form=B, dbl_helix=1 # Create RNA chain fnab AAUUUUCCG, mode=RNA Example 1 SEE ALSO Builder ..→

A Random PyMOL-generated Cover. See Covers.