Crystallography

• ARP/wARP
  A system for the refinement of protein structures via automatic updating and re-building of the model and solvent structure
• CCP4
  A suite of programs covering all aspects of crystallographic structure determination, refinement and analysis
• CNS
  A system for structure determination from crystallographic or NMR data
• MAIN
  An interactively driven suite of programs for molecular modeling, density modification, model refinement and structure analysis
• O
  An interactive system for building and manipulating models in electron density maps

• SHELX
  A set of programs for direct structure solution and refinement with high resolution diffraction data
• SOLVE
  An automated system for phase determination from MIR and MAD data
• X-PLOR 3.851
  A program for structure determination from crystallographic or NMR data (Yale version)
• X-PLOR/CNX
  A program for structure determination from crystallographic or NMR data (Accelrys version)
• XtalView
  An interactive system for building and manipulating models in electron density map and for phase determination from MIR or MAD data.

NMR

• CNS
  A system for structure determination from crystallographic or NMR data
• Fantom
  A program for structure calculation and refinement using torsion angle minimization with NMR data

• NMRPipe
  a multidimensional spectral processing system based on UNIX pipes
• X-PLOR 3.851
  A program for structure determination from crystallographic or NMR data (Yale version)