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powerfit website  

PowerFit is a Python package and simple command-line program to automatically fit high-resolution atomic structures in cryo-EM densities.

Environment Modules

Run module spider powerfit to find out what environment modules are available for this application.

System Variables

  • HPC_POWERFIT_DIR - installation directory
  • HPC_POWERFIT_BIN - executable directory


If you publish research that uses powerfit you have to cite it as follows:

G.C.P. van Zundert and A.M.J.J. Bonvin. Fast and sensitive rigid-body fitting into cryo-EM density maps with PowerFit. AIMS Biophysics 2, 73-87 (2015).

For the use of image-pyramids and reliability measures for fitting, please cite

G.C.P van Zundert and A.M.J.J. Bonvin. Defining the limits and reliability of rigid-body fitting in cryo-EM maps using multi-scale image pyramids. J. Struct. Biol. 195, 252-258 (2016).