CD Spectrometer Data Analysis

There are several free software packages available at: 
http://www.rwjms.umdnj.edu/research/cdf/experimental/analysis.html  They have CDPro, CONTIN, CCA, DICHROPROT, K2D, SOMCD and several others.
 
K2d software can be accessed at:  http://www.embl-heidelberg.de/~andrade/k2d.html or http://kal-el.ugr.es/k2d/k2d.html    You can send your data to a web server or get the program for yourself.

There is also an online facility for analyzing CD data called DichroWeb in England at:  http://dichroweb.cryst.bbk.ac.uk/html/home.shtml   They support the programs CONTINLL, SELCON3, CDSSTR, VARSLC and K2D.  You must register for an account with them and always reference them if you use their services.


For a comparison of some of the above programs, see Sreerama, N. and Woody, R. W. (2000) Estimation of Protein Secondary Structure from Circular Dichroism Spectra:  Comparison of CONTIN, SELCON, and CDSSTR Methods with an Expanded Reference Set  Analytical Biochemistry, 287, 252-260.

Updated:  5/22/12