relax 1.3.9

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This is a major feature release which introduces the new graphical user interface written by Michael Bieri [Bieri et al, 2011]. This GUI provides easy access to a sub-set of relax's features - the R1 and R2 relaxation rate curve-fitting, NOE calculations, and the fully automatic model-free analysis of the dauvergne_protocol module [d'Auvergne and Gooley, 2007][d'Auvergne and Gooley, 2008b].


The new relax versions can be downloaded from If binary distributions are not yet available for your platform and you manage to compile the binary modules, please consider contributing these to the relax project (described in section 3.6 of the relax manual,


Version 1.3.9
(26 January 2011, from /1.3)






For reference, the following links are also part of the announcement for this release:


If you would like to receive announcements about new relax versions, please subscribe to the relax announcement mailing list. This list only receives ~10 emails per year. It is archived at the SourceForge archives and in The Mail Archive.


  • [Bieri et al, 2011] ^ 1 2 Bieri, M., d'Auvergne, E., and Gooley, P. (2011). relaxGUI: a new software for fast and simple NMR relaxation data analysis and calculation of ps-ns and μs motion of proteins. J. Biomol. NMR, 50, 147-155. (DOI: 10.1007/s10858-011-9509-1)
  • [d'Auvergne and Gooley, 2007] ^ d'Auvergne, E. J. and Gooley, P. R. (2007). Set theory formulation of the model-free problem and the diffusion seeded model-free paradigm. Mol. BioSyst., 3(7), 483-494. (DOI: 10.1039/b702202f)
  • [d'Auvergne and Gooley, 2008b] ^ d'Auvergne, E. J. and Gooley, P. R. (2008). Optimisation of NMR dynamic models II. A new methodology for the dual optimisation of the model-free parameters and the Brownian rotational diffusion tensor. J. Biomol. NMR, 40(2), 121-133. (DOI: 10.1007/s10858-007-9213-3)

See also