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NMR supplement Hendrickson, W-A& Wuthrich, K Macromolecular 16. Leahy, D.J., Aukhil, I.& Erickson, H.P. 2.0 Cell 84 A K.D. thanks the Wellcome Trust and The queens 2D0i9 Riddiough. G. Nature Struct. Biol 18. sakaning. AK Kean. cel l8r.597-605i(eRw& by the Wellcome Trust. The authors acknowledge
4. Rule for elongation or reduction of R D All R.D. in the region where K1 and K2 makes an obtuse(acute) angle will increase (reduce) its length after twinning