ANP
ATOM  PG   O1G  O2G  O3G  PB   O1B  O2B  N3B  PA   O1A
ATOM  O2A  O3A  O5'  C5'  C4'  O4'  C3'  O3'  C2'  O2'
ATOM  C1'  N9   C8   N7   C5   C6   N6   N1   C2   N3 
ATOM  C4 
CONNECT -  PG   O1G +
CONNECT  PG   O2G
CONNECT  PG   O3G
CONNECT  PG   N3B  PB  O1B
CONNECT  PB   O2B
CONNECT  PB   O3A  PA  O1A
CONNECT  PA   O2A
CONNECT  PA   O5'  C5'  C4'  O4'  C1'  C2'  C3'  C4'
CONNECT  C3'  O3'
CONNECT  C2'  O2'
CONNECT  C1'  N9  C8  N7  C5  C6  N6
CONNECT  N9   C4  C5
CONNECT  C6   N1  C2  N3  C4