Chain identifier should be blank not A: ATOM 7852 MN MN A 955 -6.852 74.581 34.783 1.00149.61 A MN Unknown residue MN: ATOM 7852 MN MN 955 -6.852 74.581 34.783 1.00149.61 A MN Chain identifier should be blank not A: ATOM 7853 MN MN A 956 -6.243 71.568 33.054 1.00 92.01 A MN Unknown residue MN: ATOM 7853 MN MN 956 -6.243 71.568 33.054 1.00 92.01 A MN 1