EMRinger: side chain-directed model and map validation for 3D cryo-electron microscopy.
Barad, B.A., Echols, N., Wang, R.Y., Cheng, Y., DiMaio, F., Adams, P.D., Fraser, J.S.(2015) Nat Methods 12: 943-946
- PubMed: 26280328 
- DOI: https://doi.org/10.1038/nmeth.3541
- Primary Citation of Related Structures:  
3J9J - PubMed Abstract: 
Advances in high-resolution cryo-electron microscopy (cryo-EM) require the development of validation metrics to independently assess map quality and model geometry. We report EMRinger, a tool that assesses the precise fitting of an atomic model into the map during refinement and shows how radiation damage alters scattering from negatively charged amino acids. EMRinger (https://github.com/fraser-lab/EMRinger) will be useful for monitoring progress in resolving and modeling high-resolution features in cryo-EM.
Organizational Affiliation: 
Department of Bioengineering and Therapeutic Sciences, University of California, San Francisco, San Francisco, California, USA.