α-D-1→ 3-mannan

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  α-D-1→ 3-mannan

Linkage : alpha 1-3     

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) = 11.33 - b (Å) = 18.36 - c (Å) = 8.25 - γ (°) = 101.75

Helix Type : two-fold helix, but with all four 0-6 rotational positions nonequivalent . The chains pack with antiparallel polarity and are connected by pairs of intermolecular hydrogen bonds that form an infinite, zig-zag sheet.

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

Link to the Abstract : http://www.ncbi.nlm.nih.gov/pubmed/1516106

Reference :

Molecular and crystal structure of the regenerated form of (1 → 3)-?-D-mannan
Toshifumi Yui, Kozo Ogawa and Anatole Sarko , Carbohydrate Research 1992, 229 (1), Pages 57-74

 

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Unit          1,3-alpha-D-mannan_expanded