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  • Description

    a program to fit the extended model free spectral density function to NMR spin relaxation data. The program can analyze the spin-lattice relaxation rate constant (R1), the spin-spin relaxation rate constant (R2), and the heteronuclear steady-state {1H}-X nuclear Overhauser effect (NOE) for any combination of 13C and 15N spins at up to five static magnetic fields.

  • Usage

    To list all executables provided by ModelFree, run: $ sbgrid-list modelfree Copy to clipboard
  • Installation

    Use the following command to install this title with the CLI client: $ sbgrid-cli install modelfree Copy to clipboard Available operating systems: Linux 64, OS X INTEL
  • Primary Citation*

    A. M. Mandel, M. Akke, and A. G. Palmer. 1995. Backbone dynamics of Escherichia coli ribonuclease HI: correlations with structure and function in an active enzyme. J Mol Biol. 246(1): 144-163.

    • *Full citation information available through

  • Citation Note

    The current version of the program should be referred to as Modelfree 4.15. If you publish a paper that utilizes the Modelfree program, please email the reference information (authors, title, journal, volume, inclusive pages, year) to agp6@columbia.edu.
  • Keywords


  • Default Versions

    Linux 64:  4.20 (11.6 MB)
    OS X INTEL:  4.20 (4.8 MB)

  • Developers

    Arthur Palmer