load=1mdm
define set1 {*.O?' and dna}
define set2 {*.OP? and dna}
define set3 {nitrogen and dna}
define polaratom nitrogen and dna or oxygen and dna or nitrogen and :B or oxygen and :B
define nonpolaratom carbon and dna or phosphorus and dna or carbon and :B or sulfur and :B
define pacid set2 or phosphorus and dna
define mingr pyrimidine and *.?1 or pyrimidine and *.?2 or pyrimidine and *.?3 or purine and *.?2 or purine and *.?3 or purine and *.?4 or purine and *.?9
define majgr pyrimidine and *.?4 or pyrimidine and *.?5 or pyrimidine and *.?6 or pyrimidine and *.?7 or purine and *.?5 or purine and *.?6 or purine and *.?7 or purine and *.?8
select *.?*' and polaratom and within(3.5, polaratom and protein)
select *.?*' and nonpolaratom and within(4.5, nonpolaratom and protein)
select pacid and polaratom and within(3.5, polaratom and protein)
select pacid and nonpolaratom and within(4.5, nonpolaratom and protein)
select mingr and polaratom and within(3.5, polaratom and protein)
select mingr and nonpolaratom and within(4.5, nonpolaratom and protein)
select majgr and polaratom and within(3.5, polaratom and protein)
select majgr and nonpolaratom and within(4.5, nonpolaratom and protein)