Version: 1.7 Release tag: 650 Platform: intel-linux-2.6-x86_64 linux User: haytham why phenix does not recognise ACT, PO4 Sn and Br (unusual residue) as you see in this part in the Log file.. (see below) Chain: "C" Number of atoms: 4 Number of conformers: 1 Conformer: "" Number of residues, atoms: 1, 4 Unusual residues: {'ACT': 1} Classifications: {'undetermined': 1} Chain: "C" Number of atoms: 4 Number of conformers: 1 Conformer: "" Number of residues, atoms: 1, 4 Unusual residues: {'ACT': 1} Classifications: {'undetermined': 1} Chain: "E" Number of atoms: 1 Number of conformers: 1 Conformer: "" Number of residues, atoms: 1, 1 Unusual residues: {' SN': 1} Classifications: {'undetermined': 1} Chain: "E" Number of atoms: 1 Number of conformers: 1 Conformer: "" Number of residues, atoms: 1, 1 Unusual residues: {' SN': 1} Classifications: {'undetermined': 1} Chain: "F" Number of atoms: 1 Number of conformers: 1 Conformer: "" Number of residues, atoms: 1, 1 Unusual residues: {' SN': 1} Classifications: {'undetermined': 1} Chain: "G" Number of atoms: 5 Number of conformers: 1 Conformer: "" Number of residues, atoms: 1, 5 Unusual residues: {'PO4': 1} Classifications: {'undetermined': 1} Chain: "G" Number of atoms: 5 Number of conformers: 1 Conformer: "" Number of residues, atoms: 1, 5 Unusual residues: {'PO4': 1} Classifications: {'undetermined': 1} Chain: "H" Number of atoms: 1 Number of conformers: 1 Conformer: "" Number of residues, atoms: 1, 1 Unusual residues: {' BR': 1} Classifications: {'undetermined': 1} Residues with excluded nonbonded symmetry interactions: 2 residue: pdb=" SN SN E 1 " occ=0.70 residue: pdb=" SN SN E 2 " occ=0.20 --------------------------------------------------------- when i try to refine specially the Tin atom (not other, ACT,...) in coot after phenix.refine. coot display ((no restraints Found,...lablabla)) ----------------------------------------------------------- this is the PDB (what is the wrong with that) HETATM 3552 O HOH S 361 11.670 -4.327 9.559 1.00 34.14 O TER 3553 HOH S 361 HETATM 3554 OXT ACT C 1 10.133 -3.417 7.937 1.00 20.00 O HETATM 3555 C ACT C 1 9.911 -2.331 7.357 1.00 20.00 C HETATM 3556 O ACT C 1 10.897 -1.607 7.183 1.00 20.00 O HETATM 3557 CH3 ACT C 1 8.550 -1.912 6.905 1.00 20.00 C TER 3558 ACT C 1 HETATM 3559 OXT ACT C 2 10.700 -2.628 9.985 1.00 20.00 O HETATM 3560 C ACT C 2 10.962 -1.952 11.000 1.00 20.00 C HETATM 3561 O ACT C 2 11.756 -2.461 11.809 1.00 20.00 O HETATM 3562 CH3 ACT C 2 10.364 -0.601 11.240 1.00 20.00 C TER 3563 ACT C 2 HETATM 3564 SN SN E 1 6.346 -4.396 -16.894 0.70 20.00 SN TER 3565 SN E 1 HETATM 3566 SN SN E 2 6.492 -2.146 -14.779 0.20 20.00 SN TER 3567 SN E 2 HETATM 3568 SN SN F 1 10.186 0.632 6.366 1.00 30.00 SN TER 3569 SN F 1 HETATM 3570 P PO4 G 1 5.763 10.047 -3.974 1.00 30.00 P HETATM 3571 O1 PO4 G 1 6.960 10.924 -4.190 1.00 30.00 O HETATM 3572 O2 PO4 G 1 4.531 10.872 -4.101 1.00 30.00 O HETATM 3573 O3 PO4 G 1 5.758 8.978 -5.017 1.00 30.00 O HETATM 3574 O4 PO4 G 1 5.835 9.456 -2.607 1.00 30.00 O TER 3575 PO4 G 1 HETATM 3576 P PO4 G 2 9.060 -4.976 -17.812 1.00 30.00 P HETATM 3577 O1 PO4 G 2 10.418 -5.179 -18.415 1.00 30.00 O HETATM 3578 O2 PO4 G 2 8.223 -4.116 -18.710 1.00 30.00 O HETATM 3579 O3 PO4 G 2 8.412 -6.316 -17.597 1.00 30.00 O HETATM 3580 O4 PO4 G 2 9.172 -4.280 -16.485 1.00 30.00 O TER 3581 PO4 G 2 HETATM 3582 BR BR H 1 9.484 11.317 -29.959 1.00 20.00 BR TER 3583 BR H 1 END