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CNS

Introduction

CNS is a flexible macromolecular structure determination software suite for X-ray crystallography and solution NMR spectroscopy. The crystallography package has many algorithms for phasing and refinement, including, for example, Multi-wavelength Anomalous Dispersion (MAD), enables heavy atom searching, and density modification. The NMR package provides structure determination via J-couplings, chemical shifts, residual dipolar couplings, and nuclear Overhauser effect data. The CNS Home Page has additional information.

Version

Version 1.1 is currently available at OSC.

Availability

CNS is available on the Intel P4 Linux Cluster.

Usage

Users must complete a license agreement.

Users CNS usage is controlled via modules.

The root of the CNS directory tree is /usr/local/cns/cns.solve-1.1

Execution

module load cns
cns

Examples

Example input and output files are in the test subdirectory.

Documentation

General documentation is available from the CNS Home page and in the local machine directories.