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

ABSTRACT: 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).

SUBMITTER: Temple H 

PROVIDER: S-EPMC6508755 | biostudies-literature | 2019 Feb

REPOSITORIES: biostudies-literature