Two members of the DUF579 family are responsible for arabinogalactan methylation in Arabidopsis

All members of the DUF579 family characterized so far have been described to affect the integrity of the hemicellulosic cell wall component xylan: GXMs are glucuronoxylan methyltransferases catalyzing 4‐O–methylation of glucuronic acid on xylan; IRX15 and IRX15L, although their enzymatic activity is...

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Bibliographic Details
Published in:Plant direct 2019-02, Vol.3 (2), p.e00117-n/a
Main Authors: Temple, Henry, Mortimer, Jenny C., Tryfona, Theodora, Yu, Xiaolan, Lopez‐Hernandez, Federico, Sorieul, Mathias, Anders, Nadine, Dupree, Paul
Format: Article
Language:English
Subjects:
arabinogalactan proteins
BASIC BIOLOGICAL SCIENCES
Golgi apparatus
methyltransferases
Original Research
polysaccharide synthesis
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Summary:All members of the DUF579 family characterized so far have been described to affect the integrity of the hemicellulosic cell wall component xylan: GXMs are glucuronoxylan methyltransferases catalyzing 4‐O–methylation of glucuronic acid on xylan; IRX15 and IRX15L, although their enzymatic activity is unknown, are required for xylan biosynthesis and/or xylan deposition. Here we show that the DUF579 family members, AGM1 and AGM2, are required for 4‐O–methylation of glucuronic acid of a different plant cell wall component, the highly glycosylated arabinogalactan proteins (AGPs).
ISSN:2475-4455
2475-4455
DOI:10.1002/pld3.117