Xplor-NIH for molecular structure determination from NMR and other data sources

Protein Sci. 2018 Jan;27(1):26-40. doi: 10.1002/pro.3248. Epub 2017 Sep 18.


Xplor-NIH is a popular software package for biomolecular structure determination from nuclear magnetic resonance (NMR) and other data sources. Here, some of Xplor-NIH's most useful data-associated energy terms are reviewed, including newer alternative options for using residual dipolar coupling data in structure calculations. Further, we discuss new developments in the implementation of strict symmetry for the calculation of symmetric homo-oligomers, and in the representation of the system as an ensemble of structures to account for motional effects. Finally, the different available force fields are presented, among other Xplor-NIH capabilities.

Keywords: NMR restraints; SAXS; computational toolbox; cryo-electron microscopy; nucleic acid; optimization; protein; structure determination.

Publication types

  • Research Support, N.I.H., Intramural

MeSH terms

  • Nuclear Magnetic Resonance, Biomolecular*
  • Software*