A Database of Polysachharide 3D structures
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Diffraction Diagram
Fig.1 Diffraction pattern typical for both Xanthomonas campestrisand Xanthomonas phaseolipolysaccharides showing five-fold helical symmetry. The sharp Bragg reflection on the equator has a spacing of 1.9 nm.
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Xanthan
Linkage : beta 1-4     alpha 1-3
Space Group : -
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) = 29.00 - b (Å) = 24.90 - c (Å) = 47.00 - γ (°) = 90.00
Helix Type : -
Method(s) Used For Structure Determination : X-ray diffraction and computer-aided model building
Link to the Abstract : http://pubs.acs.org/doi/abs/10.1021/bk-1977-0045.ch007
Reference : Xanthan Gum?Molecular Conformation and Interactions Moorhouse, R., Walkinshaw, M.D. and Arnott, S., Acs. Symp. Ser. 1977, 45, 90-102
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Unit xanthan_expanded