RESIDUE   MH3      3
CONECT     MN      1 O1  
CONECT      O1     2MN    H2  
CONECT      H2     1 O1  
END
HET    MH3              3
HETSYN     MH3 [MN(OH)]2+
HETNAM     MH3 MANGANESE ION, 1 HYDROXYL COORDINATED
FORMUL      MH3    H1 O1 MN1 3+