An intrinsically disordered proline-rich domain acts in synergy with AGP-type glycosylation to control the protein fate of FLA4
The functional roles of glycans attached to the proline (Pro) rich region of arabinogalactan proteins are largely elusive. We have tested the possibility of type II arabinogalactans acting as protein fate determinants for the FASCICLIN LIKE ARABINOGALACTAN PROTEIN 4 (FLA4). Pro-to-Ala substitutions in the carboxy-terminal region caused in planta protein destabilization in an ECHIDNA-dependent…
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