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. 1984 Feb;74(2):247–251. doi: 10.1104/pp.74.2.247

Reinforced Polyproline II Conformation in a Hydroxyproline-Rich Cell Wall Glycoprotein from Carrot Root 1

Gerrit-Jan van Holst 1, Joseph E Varner 1
PMCID: PMC1066663  PMID: 16663405

Abstract

The salt-extractable hydroxyproline-rich cell wall glycoprotein from carrot (Daucus carota L.) roots is composed of 35% (w/w) protein, 3% (w/w) galactose, and 62% (w/w) arabinose. The arabinose is attached to hydroxyproline as tetra- and trisaccharides. The circular dichroism of the glycoprotein shows that it is completely in the polyproline II conformation. After deglycosylation of the glycoprotein, the polyproline II conformation of the peptide backbone was lost. This indicates that the carbohydrate reinforces the polyproline II conformation.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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