RESIDUE   ACE      7
CONECT      C      3 O    CH3  H   
CONECT      O      1 C   
CONECT      CH3    4 C    H1   H2   H3  
CONECT      H      1 C   
CONECT      H1     1 CH3 
CONECT      H2     1 CH3 
CONECT      H3     1 CH3 
END   
HET    ACE              7
HETNAM     ACE ACETYL GROUP
FORMUL      ACE    C2 H4 O1