PolySacDb

A Database of Polysachharide 3D structures

 
By A. Sarkar & S. Pérez
 
 
 

Polysaccharides For Experts

Xylan (β 1→3)

 

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Diffraction Diagram

 

Fig.1 X-ray diffraction photograph obtained from the inner parts of the cell wall of Penicillus dumetosus. Cell axis vertical, X-ray beam almost normal to wall surfaces. The cell axis has been tilted to bring the 3.06 Å reflection on to the meridian. The specimen was maintained at 98% relative humidity during exposure.

*Permission Pending for Diffraction Diagrams

(Please right-click & view the image if it appears distorted here)

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Structures are best viewed using PyMol & Sybyl

(Please download the structure and view in a stand-alone viewer if the structure appears distorted in Jmol)

 

  Xylan (β 1→3)

Linkage :       beta 1-3      beta 1-4

 

Space Group :       hexagonal P62

 

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) =   15.40

b (Å) =   15.40

c (Å) =   6.12

 

β (°) =   120.00

 

Helix Type :      

one right-handed triple helice per unit cell

 

Method(s) Used For Structure Determination :      

X-ray diffraction

 

Link to the Abstract :      
 
http://onlinelibrary.wiley.com/doi/10.1002/polc.5070280109/abstract

 

Reference :      

The helical structure of b-D-1,3-xylan
E. D. T. Atkins, K. D. Parker, Journal of Polymer Science Part C: Polymer Symposia 1969,28(1), 69 - 81

 

 

Download Structure

 

 

 

 

 
   
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