HEADER PROTEIN 23-FEB-12 NONE TITLE NULL COMPND NULL SOURCE NULL KEYWDS NULL EXPDTA NULL AUTHOR Marvin REVDAT 1 23-FEB-12 0 HETATM 1 Sn UNK 0 50.116 -30.255 0.000 0.00 0.00 Sn+4 MASTER 0 0 0 0 0 0 0 0 1 0 0 0 END