script dna.def
define pol_dna *.O?P and dna, *.O?* and dna, (oxygen,nitrogen) and mjg, (oxygen,nitrogen) and mig
echo pol_dna is defined!
define nonpol_dna *.C?* and dna, carbon and mjg, carbon and mig
echo nonpol_dna is defined!
define dbackbone backbone and dna
echo dbackbone is defined!
