# The chains involved in protein-DNA complex are: ACD
# that goes as value for the option `-cc` to sampdi3d.py
# Note here DNA is double-stranded. In case of protein mutation single amino acid
# wild-type and mutant information is needed. For example, in case of protein mutation 
# (K->A) at resid 36 in chain A. The space separated fields would contain following info:
# MutatingChain WildtypeAA ResID MutantAA
A K 38 A