Now, before you ask what a good range is for rmsd's for B values, I don't know what the current consensus is (as if our field ever reaches a consensus on anything). Perhaps, others can offer some enlightening advice.
no enlightenment, but a picture of what people are depositing. the attached graph (ccp4bb volente ...) shows the distribution of the average residue-OWAB versus resolution for EDS entries between 1 and 2 A resolution (OWAB = occupancy-weighted average B-value) (if you've never seen a "tie-fighter plot" before, look here: http://xray.bmc.uu.se/gerard/supmat/rfree2000/tie_fi.gif)
hic-up contains EDS-derived statistics for MPD as well - surf to http://xray.bmc.uu.se/hicup/MPD/mpd_eds_stats.html - at 1.4-1.6 A resolution, the average OWAB for an MPD is 43 A2 (sigma 16 A2; N=91). to get an impression of what really good density for MPD at this resolution should look like, look in the first table on that page (i.e., the real-space R-value statistics for MPD). in the 1.4-16 A resolution range, the lowest RSR-value (0.07) is found in entry 1VRM - just click the link and you will get to the EDS page for that entry. click on the link to go to the real-space R-value plot page and you can quickly find out which MPD it is (in this case the MPD with residue nr 1 and blank chain ID). click on it to see its density, or download the EDS maps etc. for this entry
--dvd
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Gerard J. Kleywegt
[Research Fellow of the Royal Swedish Academy of Sciences]
Dept. of Cell & Molecular Biology University of Uppsala
Biomedical Centre Box 596
SE-751 24 Uppsala SWEDEN
http://xray.bmc.uu.se/gerard/ mailto:[EMAIL PROTECTED]
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The opinions in this message are fictional. Any similarity
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