RESIDUE   UXR     16
CONECT      C1     4 C2   H1   H2   H3  
CONECT      C2     4 C1   C3   P1   H4  
CONECT      C3     3 C2   O1   O2  
CONECT      O1     1 C3  
CONECT      O2     2 C3   H5  
CONECT      P1     4 C2   O3   O4   O5  
CONECT      O3     2 P1   H6  
CONECT      O4     2 P1   H7  
CONECT      O5     1 P1  
CONECT      H1     1 C1  
CONECT      H2     1 C1  
CONECT      H3     1 C1  
CONECT      H4     1 C2  
CONECT      H5     1 O2  
CONECT      H6     1 O3  
CONECT      H7     1 O4  
END   
HET    UXR             16
HETNAM     UXR (2S)-2-phosphonopropanoic acid
FORMUL      UXR    C3 H7 O5 P