select all
restrict none
define ribose (*.O?* or *.C?*) and dna
define phosphate (*.O?P or *.P) and dna
define big (*.n4,*.n6,*.n7, *.o4,*.o6, *.c5,*.c6, (*.c4,*.c7 and pyrimidine), (*.c8 and purine)) and dna 
define mal (*.o2,*.n3,*.n2,*.c2,(*.c4 and purine)) and dna
define pol (*.O??, *.N??)
define unpol (*.C??, *.P??, *.S??)
define polar1 within (3.5, (ribose and pol)) and protein and pol
define polar2 within (3.5, (phosphate and pol)) and protein and pol
define polar3 within (3.5, (big and pol)) and protein and pol
define polar4 within (3.5, (mal and pol)) and protein and pol
define unpolar1 within (4.5, (ribose and unpol)) and protein and unpol
define unpolar2 within (4.5, (phosphate and unpol)) and protein and unpol
define unpolar3 within (4.5, (big and unpol)) and protein and unpol
define unpolar4 within (4.5, (mal and unpol)) and protein and unpol
































                                  