Crystallography and NMR system

CNS or Crystallography and NMR system, is a software library for computational structural biology.^[1][2] It is an offshoot of X-PLOR and uses much of the same syntax. It is used in the fields of X-ray crystallography and NMR spectroscopy of biological macromolecules.

CNS
Developer(s)	Axel T. Brunger, G. Marius Clore, and others
Stable release	1.3 / 22 July 2010; 15 years ago (2010-07-22)
Written in	Fortran
Operating system	Mac, Linux
Type	X-Ray Crystallography, NMR Spectroscopy
Licence	Free to Academic (Non-profit) Institutions
Website	cns-online.org