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This will undoubtedly turn out to be something ridiculously stupid, but for the life of me I can't get refmac to recognize GLC correctly to refine a bound glucose molecule. I thought maybe I'd just numbered the atoms incorrectly or something like that, so I tried to read in the molecular description via sketcher. The file is clearly present and is a valid selection under the D-pyranose group (as GLC-b-D) but libcheck always fails with the fatal error message "ERROR: can't open (.lib):g/GLC-B-D." (which is the same error I get while running refmac) I don't know if the change in case is important or not--I wouldn't think so, but what do I know; other files designated XXX-b-D seem to open fine, (NAG-b-D, for example). There doesn't seem to be any silly privelige problem and the .cif file looks to be OK. What can be wrong? Bob Crowther,Ph.D. Discovery Chemistry Roche, Inc. [EMAIL PROTECTED]
