NAMD Wiki: NamdAndAmber

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Assisted Model Building with Energy Refinement

A program and a force field, see

Capitalization varies, but Amber seems to be displacing AMBER over time.

For the Amber force field in CHARMM format see

In NAMD 2.5b1 and earlier there were issues with using rigid waters in NAMD with Amber-format toppar and coord input files. This should be fixed in 2.5b3 and later, but a workaround is given at