Licensing introduction

As of July 2011, the DSSP executable is distributed free of cost to academic and commercial users alike. The original DSSP (nowadays referred to as DSSPold) will still cost commercial users Euro 1000,-
Before downloading any DSSP release, please fill out the appropriate license agreement and FAX or snail-mail it to us. (Please do not mail us scanned license forms by Email).
The remainder of this page is the academic license form. The license form for commercial users is available too.

DSSP academic license agreement

Please fill the DSSP license agreement form, sign, keep one copy, and return one copy by paper mail to:

Gert Vriend
CMBI
NCMLS UMCN
Geert Grooteplein 26-28 
6525 GA   NIJMEGEN 
The Netherlands

or fax it:
Fax +31 (0)24 3619395

The distribution of the DSSP software is performed on a 'we trust you' basis: You download the license form and the source code yourself. This is done because we want to keep the distribution effort as small as possible.

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                          ACADEMIC LICENSE AGREEMENT

                             FOR THE PROGRAM DSSP

                     BY WOLFGANG KABSCH AND CHRIS SANDER


An academic license agreement for the DSSP program 

(c) W. Kabsch, C. Sander,and MPI-MF, 1983, 1988, 2000, 2008
(c) ML Hekkelman, 2011

is granted to ....................................

in exchange for the following commitments:

I hereby certify that

	(1) I am an academic user at an academic research institution. In
	    using the software, We will respect the interests of the authors
	    and their institutions.

	(2) I will not use the software in commercial activities without
	    a written commercial license agreement; commercial activities
	    include, in particular, work under contract from a commercial
	    company.

	(3) I will not redistribute the software to others outside of my
	    immediate research group. I will suggest to other interested
	    research groups to contact the authors directly. When I leave 
            my current institution, I will either delete the software or
            reapply for a new license.

	(4) I will not alter or suppress the run-time copyright message.

	(5) I will acknowledge the program authors on any publication of
	    scientific results based in part on use of the program and 
	    cite the article in which the program was described (Kabsch,W. &
            Sander,C. 1983 "Dictionary of protein secondary structure:
            Pattern recognition of hydrogen bonded and geometrical 
            features", Biopolymers 22:2577-2637).

	(6) I will report evidence of program bugs to the authors.

	(7) I will send the source code of any bug corrections and program
	    extensions, major or minor, to the original authors, for free
	    academic use. If I have made major extensions which are incor-
	    porated by the authors, I reserve the right to be appropriately
	    included in any future commercial license agreement.

	(8) I will not extract part of the software, e.g. modules or sub-
            routines, for use in other contexts without permission by the
	    authors.

	(9) I will not use the program in the context of classified research.


Purpose of research:



Full name and institutional address:






Internet email adress:



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