Hi Nisha, Are your B-values residuals after TLS refinement or do they include TLS contribution? Residuals are typically low.
Your mainchain/sidechain B value problem: did you try resetting B to a fixed value for all atoms and refining? Another point: if your I/sigI (outer shell) is 4.2, then why didn't you process your data to a bit higher resolution, till at least I/sigI ~ 2 or so. Thanks Abhinav JCSG@SSRL, SLAC Phone: (650) 926-2992 Fax: (650) 926-3292 On Apr 22, 2011, at 11:41 PM, nisha pandey wrote: Dear ccp4bb, I want to know regarding Wilson B value and mean B-value of protein after refinement, In my case there is large difference in Wilson plot and overall.Is<http://overall.Is> it OK to have such value ie Wilson B-value 42 and mean B value is 23.3 ? Also in the same structure I have observed that in a few residues B-value of main chain are higher than that of side chain.It<http://chain.It> seems quit unusual .Kindly help me sort out this problem. Some basic information regarding the data are given below. Resolution range 41.24-2.7 Rsym -15 I/Sigma-17.2 I/Sigma -4.2 (In highest resolution shell) Rfactor -21.4 R free -24.2 Thanks in advance With regards Nisha
