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[ccp4bb]: Re: your mail
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there are about 3 dozen entries in the pdb with space group C2
and a beta angle > 130 degrees. the highest beta angle of all
pdb entries occurs for 1SPG:
CRYST1 89.600 75.600 69.700 90.00 141.90 90.00 C 1 2 1 4
however, a look at the whatif output for a few of these
suggests there may be spacegroup problems or pseudo-
symmetry for several of these entries
(e.g.: http://www.cmbi.kun.nl/cgi-bin/nonotes?1spg)
--dvd
> Denzo suggested a C2 cell with
> a = 143 b = 63 c = 94 beta = 130.
>
> Did anybody else observe such a large beta angle before in a protein crystal
> with a monoclinic cell?
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Gerard J. Kleywegt
Dept. of Cell & Molecular Biology Bolshevik University of Uppsala
Biomedical Centre Box 596
SE-751 24 Uppsala SWEDEN
http://xray.bmc.uu.se/gerard/ mailto:gerard@xray.bmc.uu.se
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- From: Klaus Piontek <klaus.piontek@bc.biol.ethz.ch>