Welcome to helanal’s documentation!

This module contains code to analyse protein helices using the HELANAL algorithm ([Bansal2000], [Sugeta1967]).

HELANAL quantifies the geometry of helices in proteins on the basis of their Cα atoms. It can determine local structural features such as the local helical twist and rise, local helix origins and bending angles along the helix.

Contents

• Getting Started
• Computed Properties
• API Documentation

References

[Sugeta1967]

Sugeta, H. and Miyazawa, T. 1967. General method for calculating helical parameters of polymer chains from bond lengths, bond angles and internal rotation angles. Biopolymers 5 673 - 679

[Bansal2000]

Bansal M, Kumar S, Velavan R. 2000. HELANAL - A program to characterise helix geometry in proteins. J Biomol Struct Dyn. 17(5):811-819.