Dextran (low T polymorph)

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  Dextran (low T polymorph)

Linkage : alpha 1-6      alpha 1-4

Space Group : monoclinic P21

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) = 25.71 - b (Å) = 10.21 - c (Å) = 7.76 - β (°) = 91.30

Helix Type : sheets that are separated by water molecules

Method(s) Used For Structure Determination : X-ray fibre diffraction, electron diffraction and stereochemical model refinement

Link to the Abstract : http://www.ncbi.nlm.nih.gov/pubmed/2410620

Reference :

The Molecular and Crystal Structure of Dextrans : A Combined Electron and X-ray Diffraction Study II . A Low Temperature, Hydrated Polymorph
Guizard, H. Chanzy, H. and Sarko, A., J. Mol. Biol. 1985, 183, 378-408

 

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Unit          dextran-lowT-hyd_expanded