Multistranded Helix in Xanthan Polysaccharide

descriptionPublicationkeyboard_double_arrow_right Article 19 Aug 1977 English Publisher:American Association for the Advancement of Science (AAAS)Journal:Science, volume 197, pages 757-759 (issn: 0036-8075, eissn: 1095-9203,

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Authors: G, Holzwarth; E B, Prestridge;

doi: 10.1126/science.887918

pmid: 887918

Multistranded Helix in Xanthan Polysaccharide

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Abstract

The extracellular polysaccharide xanthan is shown by electron microscopy to be an unbranched, probably double-stranded fiber 4 nanometers wide and 2 to 10 micrometers long when native. Denaturation yields a single strand only 2 nanometers wide and 0.3 to 1.8 micrometers long. Renatured xanthan shows short unraveled regions with two or three strands arranged in a right-handed twist.

Related Organizations

ExxonMobil (United States)
United States

Keywords

Molecular Weight, Microscopy, Electron, Xanthomonas, Polysaccharides, Bacterial, Molecular Conformation

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