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Arun Konagurthu,
Lloyd Allison,
David Abramson,
Peter Stuckey and
Arthur Lesk
Acta Cryst., D70(3), pp.904-906, March 2014
Atomic coordinates in the Worldwide Protein Data Bank (wwPDB) are
generally reported to greater precision than the experimental
structure determinations have actually achieved.
By using information theory & data compression to study the
compressibility of protein atomic coordinates, it is possible
to quantify the amount of randomness in the coordinate data &
thereby to determine the realistic precision of the reported coordinates.
On avg., the value of each C_alpha coordinate in a set of
selected p.structures solved at a variety of resolutions is good to about 0.1A.
[doi:10.1107/S1399004713031787]
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