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. 1992 Jul;99(3):1099–1104. doi: 10.1104/pp.99.3.1099

Influence of the Degree of Polymerization of Oligogalacturonates and of Esterification Pattern of Pectin on Their Recognition by Monoclonal Antibodies 1

Françoise Liners 1,2, Jean-François Thibault 1,2, Pierre Van Cutsem 1,2
PMCID: PMC1080589  PMID: 16668976

Abstract

The ability of galacturonic and oligogalacturonic acids with degrees of polymerization (DP) from 2 to 10 to inhibit the recognition of homopolygalacturonic acid by a monoclonal antibody specific for dimers of pectin (F Liners, J-J Letesson, C Didembourg, P Van Cutsem [1989] Plant Physiol 91: 1419-1424) has been tested by enzyme-linked immunosorbent assays. Oligomers of DP9 and above preincubated with the antibodies clearly inhibited the association between the antibodies and immobilized pectin. A minimum DP of nine consecutive galacturonic residues is thus necessary to be associated through calcium cations to form dimers. Randomly deesterified pectin was recognized by the antibody if its degree of methylesterification was <30%, whereas blockwise deesterified pectin was recognized up to 40% of methylesterification. The replacement of calcium ions by magnesium prevented the recognition of polygalacturonic acid by the antibody.

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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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