Hiya, I used shelex C/D/E on a SAD data, and wanted to refile the positions in MLPHARE before going for AddSOLVE. Confused with the output of two shelex files. shelx1.pdb file says CRYST1 50.050 65.520 105.180 90.00 90.00 90.00 SCALE1 0.019980 0.000000 0.000000 0.00000 SCALE2 0.000000 0.015263 0.000000 0.00000 SCALE3 0.000000 0.000000 0.009508 0.00000 HETATM 1 S HAT 1 13.301 15.247 9.244 1.000 20.00 HETATM 2 S HAT 2 11.528 28.067 11.167 0.803 20.00 HETATM 3 S HAT 3 15.167 5.763 19.810 0.613 20.00 HETATM 4 S HAT 4 13.307 30.233 13.293 0.599 20.00 HETATM 5 S HAT 5 12.792 19.519 4.781 0.572 20.00 HETATM 6 S HAT 6 13.273 15.312 20.083 0.373 20.00 END shelxd_fa.res file says: REM TRY 37 CC 37.28 CC(weak) 19.64 TIME 56 SECS REM TITL eba28_4_shelxc_fa.ins SAD in C2221 CELL 0.98000 50.05 65.52 105.18 90.00 90.00 90.00 LATT -7 SYMM -X, -Y, 1/2+Z SYMM -X, Y, 1/2-Z SYMM X, -Y, -Z SFAC SE UNIT 128 SE01 1 0.265762 0.232712 0.087886 1.0000 0.2 SE02 1 0.230339 0.428368 0.106166 0.8032 0.2 SE03 1 0.303047 0.087959 0.188342 0.6130 0.2 SE04 1 0.265884 0.461433 0.126384 0.5992 0.2 SE05 1 0.255577 0.297905 0.045451 0.5723 0.2 SE06 1 0.265198 0.233696 0.190944 0.3728 0.2 HKLF 3 END I have only 4 Se atoms, as judged from cell content analysis, so I guess I do see some Sulphurs. What should I do with atom identifiers in MLPHARE? Cheers, Partha