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NaAGP4 is an arabinogalactan protein whose expression is suppressed by wounding and fungal infection in Nicotiana alata

Gilson, P.; Gaspar, Y.M.; Oxley, D.; Youl, J.J.; Bacic, A.

Protoplasma 215(1-4): 128-139

2001


ISSN/ISBN: 0033-183X
PMID: 11732052
DOI: 10.1007/bf01280309
Accession: 003506411

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Arabinogalactan proteins (AGPs) are proteoglycans secreted by plant cells that have been implicated in plant growth and development. Most AGPs cloned to date possess highly labile glycosylphosphatidylinositol (GPI) lipid anchors. These anchors transiently attach AGPs to the plasma membrane before they are released into the cell wall following GPI anchor hydrolysis. We have isolated and partially sequenced the protein core of an AGP purified from styles of N. alata (self-incompatibility genotype S6S6). The protein sequence data were utilized to clone the AGP's gene, NaAGP4. This AGP shares about 78% sequence identity with the tomato AGP LeAGP-1.

NaAGP4 is an arabinogalactan protein whose expression is suppressed by wounding and fungal infection in Nicotiana alata

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