PolySacDb

A Database of Polysachharide 3D structures

 
By A. Sarkar & S. Pérez
 
 
 

Polysaccharides For Experts

Carrageenan Iota - Sodium Salt

 

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Diffraction Diagram

 

Fig.1 Diffraction pattern from a well oriented and polycrystalline fiber of sodium-carrageenan that is almost perpendicular to the incident X-ray beam.

*Permission Pending for Diffraction Diagrams

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  Carrageenan Iota - Sodium Salt

Linkage :       beta 1-4      beta 1-3

 

Space Group :       trigonal P32

 

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) =   24.02

b (Å) =   24.02

c (Å) =   12.93

 

γ (°) =   120.00

 

Helix Type :      

half-staggered, parallel, three-fold, right-handed double-helix

 

Method(s) Used For Structure Determination :      

X-ray diffraction

 

Link to the Abstract :      
 
http://www.ncbi.nlm.nih.gov/pubmed/11578634

 

Reference :      

Three-dimensional structure of the sodium salt of iota-carrageenan
Srinivas Janaswamy & Rengaswami Chandrasekaran, Carbohydrate Research 2001, 335, 181?194

 

 

Download Structure

Unit          carrageenan-iota-Na-salt_expanded

 

 

 

 

 
   
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