Dear all, A minor point but worth mentioning, I think...
The EDS server does not produce a density map for PDB entries for which it cannot calculate R-factors within 5 percentage points of the published values. I understand that the server was set up in the dark ages of crystallographic refinement, when people perhaps took some liberties with their refinement protocols. Hopefully, the educational point now has been made so wouldn't it be better to calculate the map together with a warning of the discrepancy in R-factor values? Coot does display a map for such a PDB entry, but with a pop-up window warning the user that "This is not a reliable map." Without explanation, this statement is at least as unreliable as the map that it refers to and bound to confuse and alarm the user who - in the large majority of cases - finds himself/herself staring at a perfectly decent (reliable?) map. Luca Luca Pellegrini Department of Biochemistry University of Cambridge 80 Tennis Court Road Cambridge CB2 1GA - UK Email: lp...@cam.ac.uk Tel: 0044-1223-760469 Fax: 0044-1223-766002 Sanger building, room 3.59
