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mmmm, sounds strange - an all-helical protein should have a very common
backbone structure. the only time i've ever had a low score myself was with a
protein that had an unusually high loop content. however, if rfree and
ramachandran are reasonable it would seem unlikely that the model is
particularly poor (unless it is one small protein in a humongous complex)
at the bottom of the whatif/whatcheck output there is a final summary
('Summary report for users of a structure') - what are the values of the other
'Structure Z-scores' listed there (packing quality, ramachandran, rotamer
normality) ?
--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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