A Database of Polysachharide 3D structures
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Diffraction Diagram
Fig.1 One quadrant of a typical X-ray diffraction diagram of a crystal obtained in 1 s during a 2° rotation. Inset: example of the intensity distribution across one of the diffraction spots (circled).
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Amylose A(Revisit-2009)
Linkage : alpha 1-4    
Space Group : monoclinic B2
Unit Cell Dimensions (a, b, c in Å and α, β, γ in °)
(No values are displayed if no information is available or the value is zero)
a (Å) = 20.83 - b (Å) = 11.45 - c (Å) = 10.58 - γ (°) = 122.00
Helix Type : two intertwined 6-fold left-handed parallel double helices, packed in a parallel fashion and tightly nested into one another
Method(s) Used For Structure Determination : conventional X-ray structure determination techniques normally used for small molecules & synchrotron radiation microdiffraction data
Link to the Abstract : http://pubs.acs.org/doi/abs/10.1021/ma801789j
Reference : Crystal Structure of A-amylose: A Revisit from Synchrotron Microdiffraction Analysis of Single Crystals D. Popov, A. Buléon, M. Burghammer, H. Chanzy, N. Montesanti, J.-L. Putaux, G. Potocki-Véron?se, and C. Riekel, Macromolecules 2009, 42 (4), 1167?1174
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Unit A-amylose_2009-popov_expanded