HEADER PROTEIN 04-SEP-20 NONE TITLE NULL COMPND NULL SOURCE NULL KEYWDS NULL EXPDTA NULL AUTHOR Marvin REVDAT 1 04-SEP-20 0 HETATM 1 Mg UNK 0 0.000 0.000 0.000 0.00 0.00 Mg+2 MASTER 0 0 0 0 0 0 0 0 1 0 0 0 END