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Type Python Script
Author(s) Sean M. Law
License -
This code has been put under version control in the project Pymol-script-repo

DESCRIPTION is a PyMol script that returns the sugar pucker information (phase, amplitude, pucker) for a given selection.

This script uses its own dihedral calculation scheme rather than the get_dihedral command. Thus, it is lightning fast!

If a selection does not contain any ribose sugars then an error message is returned.


load the script using the run command

pucker selection
#Calculates the sugar information for the given selection

pucker selection, state=1
#Calculates the sugar information for the given selection in state 1

pucker selection, state=0 
#Iterates over all states and calculates the sugar information for the given selection


<source lang="python">

  1. fetch 1BNA.pdb

fetch 1bna

  1. Select DNA only
  2. Otherwise, you will get an error for water not having sugars

select DNA, not solvent

  1. Execute pucker ..→
A Random PyMOL-generated Cover. See Covers.