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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Detalles Bibliográficos
Autores principales: Temple, Henry, Mortimer, Jenny C., Tryfona, Theodora, Yu, Xiaolan, Lopez‐Hernandez, Federico, Sorieul, Mathias, Anders, Nadine, Dupree, Paul
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2019
Materias:
Original Research
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6508755/
https://www.ncbi.nlm.nih.gov/pubmed/31245760
http://dx.doi.org/10.1002/pld3.117
Descripción
Sumario: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).

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