PolySacDb

A Database of Polysachharide 3D structures

 
By A. Sarkar & S. Pérez
 
 
 

Polysaccharides For Experts

Carrageenan kappa

 

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Diffraction Diagram

 

Fig.1 Fibre diffraction patterns obtained from potassium kappa-Carrageenan at 56% relative humidity (tilt of fibre to normal to incident X-ray beam is 10°)

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Structures are best viewed using PyMol & Sybyl

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  Carrageenan kappa

Linkage :       beta 1-4      beta 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)

c (Å) =   25.00

 

 

Helix Type :      

coaxial duplexes comprising right-handed, 3-fold helical chains, offset from the half-staggered arrangement by a 28? rotation and a 1.0-? translation

 

Method(s) Used For Structure Determination :      

X-ray diffraction

 

Link to the Abstract :      
 
http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TFF-431C9S9-GC&_user=10&_coverDate=10%2F15%2F1988&_rdoc=1&_fmt=high&_orig=search&_origin=search&_sort=d&_docanchor=&view=c&_searchStrId=1620773788&_rerunOrigin=google&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=2ef4d01703c00e5158648769c0c44dea&searchtype=a

 

Reference :      

The molecular structure of kappa-carrageenan and comparison with iota-carrageenan
Millane, R.P., Chandrasekaran, R., Arnott, S. and Dea, I.C.M.,Carbohydrate Research 1988, 182 1-17

 

 

Download Structure

Unit          kappa-carrageenan_expanded

 

 

 

 

 
   
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