AMBER 7 is a package of molecular simulation programs useful for performing calculations on proteins and DNA.

 

Academic users can purchase a license for around $US 400.

 

Much useful information can be found at http://amber.scripps.edu

 

In particular, the users manual can be found at http://amber.scripps.edu/doc7/amber7.pdf

 

Other important tips are to have the AMBERHOME environment variable set e.g. in the bash

 

>export AMBERHOME=/usr/local/amber7               # or wherever it happens to be.

 

and to add the exe directory to your path. Again in the bash:

 

>export PATH=$PATH:$AMBERHOME/exe

 

Note, you can also find the users manual at $AMBERHOME/doc/amber7.pdf