Chain identifier should be blank not A: ATOM 7824 MN MN A 956 -6.533 74.934 33.472 1.00 77.82 A MN Unknown residue MN: ATOM 7824 MN MN 956 -6.533 74.934 33.472 1.00 77.82 A MN Chain identifier should be blank not A: ATOM 7825 MN MN A 957 -6.263 71.751 31.739 1.00 66.68 A MN Unknown residue MN: ATOM 7825 MN MN 957 -6.263 71.751 31.739 1.00 66.68 A MN 1