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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Dear Shanti Pal Gangwar, which strategy did you pursue after MR - did you start model building, or did you start with refinement? In case of the latter you may have erased what actually helps you get a better model. One easy way to check is the geometric sanity of the model. How good is the molprobity score? If you used refmac5, take a look at the last listing in the log-file. Make sure the rmsd (Lengths/Angles) is small and does not increase. If the geometry is poor, reduce the matrix weight. This might increase your R-values at the benefit of difference density that might help you improve your model. Best, Tim On 02/04/2014 10:36 AM, Shanti Pal Gangwar wrote: > Dear All > > I have solved one structure by MR. The data data quality was poor > so the Rmerge was high. The resolution of the data is 3.3 > Angstrom.The refinement statistics are also very poor Rw/Rf= 40/42 > %. After many efforts we are not able to get reasonable Rw/Rf. > > My question is "can it be claimed that we have solved the > structure?" > > > Thanks in advance > > > > > - -- - -- Dr Tim Gruene Institut fuer anorganische Chemie Tammannstr. 4 D-37077 Goettingen GPG Key ID = A46BEE1A -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) Comment: Using GnuPG with Icedove - http://www.enigmail.net/ iD8DBQFS8O26UxlJ7aRr7hoRAvcNAKDT6QAkvrfiPFt3moaRq+I2lGbp2wCeJK9j GuFBx8BQOtzPo7ciE+C5BVo= =KHEX -----END PGP SIGNATURE-----