AMBER -- Assisted Model Building with Energy Refinement

AMBER is a package of molecular simulation programs, which includes source code and demonstrations. The same name (see AMBER entry) is given to a set of molecular mechanical force fields for the simulation of biomolecules (which are in the public domain, and are used in a variety of simulation programs).

References

1. AMBER homepage
2. David A. Case, Thomas E. Cheatham III, Tom Darden, Holger Gohlke, Ray Luo, Kenneth M. Merz Jr., Alexey Onufriev, Carlos Simmerling, Bing Wang, Robert J. Woods "The Amber biomolecular simulation programs", Journal of Computational Chemistry 26 pp. 1668-1688 (2005)