RELAXFIT
A program for extracting relaxation rates (e.g. R₁ or R₂) from fitting experimental data to an exponentially decaying function.
Reference: Fushman et al., J. Mol. Biol. 266 (1997) 173.

DYNAMICS
A program for model-free analysis of ¹⁵N relaxation data.
Features isotropic, axially-symmetric and fully anisotropic models for the overall tumbling of the molecule, and monomer-dimer equilibration.
Reference: Fushman et al., J. Mol. Biol. 266 (1997) 173; Hall & Fushman, J. Biomol. NMR (2003) 27, 261.

ROTDIF
A program for the determination of the overall rotational diffusion tensor of a molecule from spin-relaxation data.
Features isotropic, axially-symmetric, and fully anisotropic models for the overall motion.
Reference: Fushman et al., Biochemistry 38 (1999) 10225-10230; Varadan et al., JMB 324 (2002) 637; Walker et al. J. Magn. Reson. (2004) 168, 336; Fushman et al, Progress NMR Spectroscopy, (2004) 44, 189.

ETAFIT
A program for the determination of the magnitude and orientation of the ¹⁵N chemical shift anisotropy from the field dependence of the ratio, h /R₂, of the CSA/dipolar cross-correlation term h and the ¹⁵N transverse relaxation rate R₂. Requires relaxation data measured at 2 or more fields.
Reference: Fushman et al., J. Amer. Chem. Soc. 120 (1998) 10947-10952.

PICK
A program for automatic peak picking in a 2D spectrum given a reference peak list.
Features reading-in spectra produced with XWINNMR and full peak-list export/importability with XEASY.