DSSPold commercial license agreement

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

This license agreement is only needed for DSSPold, and not for DSSP2.*.

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

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

(If FAXing it fails, please use a classical paper envelope rather than sending me the scanned license form).
Please be aware that the DSSP executable is free for academic and commercial users. Commercial users only need to pay if they want to use/obtain the DSSPold source code.
The distribution of the DSSPold source code (C version) is performed on a 'we trust you' basis: You dowload the license form and the source code yourself. This is done because we want to keep the distribution efforts limited.
A Bill for commercial users is available.
If you need to pay, please look at the Bank details.

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                          COMMERCIAL LICENSE AGREEMENT

                             FOR THE PROGRAM DSSP

                     BY WOLFGANG KABSCH AND CHRIS SANDER


An commercial license agreement for the DSSP/DSSPold program (please indicate 
which version you will download).

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

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

in exchange for the following commitments:

I hereby certify that

	(1) In using the software, We will respect the interests of the authors
	    and their institutions.

	(2) We will not use the DSSPold software in commercial activities before we
            have transfered Euro 1000,- to the WHAT IF / DSSP account.
	    
	(3) We will not redistribute the software to others outside the
            site. I will suggest to other interested
	    research groups to contact the authors directly. When I leave 
            my current institution, I will leave the software at the current
            institution and reapply for a new license from the new institution.

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

	(5) We 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) We will report evidence of program bugs to the authors.

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

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

	(9) We will not use the DSSPold program in the context of military 
            research.


Purpose of research:



Full name and institutional address:






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