X-PLOR is a computer software package for computational structural biology originally developed by Axel T. Brunger at Yale University.
It was first published in 1987 as an offshoot of CHARMM - a similar program that ran on supercomputers made by Cray Inc.
It is used in the fields of X-ray crystallography and nuclear magnetic resonance spectroscopy of proteins (NMR) analysis.
[1] X-PLOR is a highly sophisticated program that provides an interface between theoretical foundations and experimental data in structural biology, with specific emphasis on X-ray crystallography and nuclear magnetic resonance spectroscopy in solution of biological macro-molecules.
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