PolySacDb

A Database of Polysachharide 3D structures

 
By A. Sarkar & S. Pérez
 
 
 

Polysaccharides For Experts

Amylose tri-O-ethyl (TEA3)

 

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Diffraction Diagram

 

Fig.1 Fibre diffraction diagram of TEA 1-C2 taken in a cylindrical camera with radius 5.73 cm.

 

Fig.2 Fibre diffraction diagram of TEA 3 taken in a cylindrical camera with radius 5.73 cm.

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Structures are best viewed using PyMol & Sybyl

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  Amylose tri-O-ethyl (TEA3)

Linkage :       alpha 1-4      alpha 1-6

 

Space Group :       orthorhombic P212121

 

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) =   15.36

b (Å) =   12.18

c (Å) =   15.48

 

γ (°) =   90.00

 

Helix Type :      

43 helix

 

Method(s) Used For Structure Determination :      

X-ray fibre diffraction and stereochemical analysis

 

Link to the Abstract :      
 
http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TFF-42H949H-16T&_user=10&_coverDate=01%2F31%2F1979&_rdoc=1&_fmt=high&_orig=search&_origin=search&_sort=d&_docanchor=&view=c&_searchStrId=1620759612&_rerunOrigin=google&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=b77d2bf675370c2ec0242fee1d7ee3bd&searchtype=a

 

Reference :      

The crystal and molecular structure of tri-O-ethyl-amylose (TEA3)
Bluhm,T.L. and Zugenmaier, P., 1979, Carbohydrate Research, 1979, 68, 15-21

 

 

Download Structure

Unit          amyloseTEA3_expanded

 

 

 

 

 
   
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