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. 1981 Oct;68(4):910–913. doi: 10.1104/pp.68.4.910

Arabinogalactan Protein from a Crude Cell Organelle Fraction of Phaseolus vulgaris L. 1

Gerrit-Jan van Holst 1, Frans M Klis 1, Piet J M de Wildt 1, Corinne A M Hazenberg 1, Jopie Buijs 1, Durk Stegwee 1
PMCID: PMC426011  PMID: 16662024

Abstract

Sonication of a crude cell organelle fraction from hypocotyl tissue of dark-grown bean seedlings, and from suspension-cultured cells released a hydroxyproline-containing protein. The purification of this protein is described. It was found to be an arabinogalactan protein composed of 90% carbohydrate and 10% protein. The major sugars are galactose, arabinose, and uronic acids, and the major amino acids are hydroxyproline, serine, and alanine. Its molecular weight was estimated at 1.4 × 105 daltons and the isoelectric point at pH 2.3. The molecule is soluble in 5% trichloroacetic acid and can be precipitated with β-galactosyl Yariv antigen. Pulse-chase experiments indicated that it was a secretory protein. The biosynthesis of arabinogalactan proteins is discussed.

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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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