RESIDUE   XUJ     20
CONECT      BAI    3 OAK  OAL  CAH 
CONECT      OAK    2 BAI  H1  
CONECT      OAL    2 BAI  H2  
CONECT      CAH    4 BAI  CAG  H3   H4  
CONECT      CAG    4 CAH  CAD  H5   H6  
CONECT      CAD    4 CAG  NAF  CAB  H7  
CONECT      NAF    3 CAD  H8   H9  
CONECT      CAB    3 CAD  OAC  OAA 
CONECT      OAC    1 CAB 
CONECT      OAA    2 CAB  H11 
CONECT      H1     1 OAK 
CONECT      H2     1 OAL 
CONECT      H3     1 CAH 
CONECT      H4     1 CAH 
CONECT      H5     1 CAG 
CONECT      H6     1 CAG 
CONECT      H7     1 CAD 
CONECT      H8     1 NAF 
CONECT      H9     1 NAF 
CONECT      H11    1 OAA 
END   
HET    XUJ             20
HETNAM     XUJ (2R)-2-amino-4-boronobutanoic acid
FORMUL      XUJ    C4 H10 B N O4