dual specificity protein phosphatase (DsPTP1) family protein;(source:Araport11)
TAIR Curator Summary:
Encodes a plant-specific glucan phosphatase that contains a noncatalytic carbohydrate-binding module as well as a dual specificity protein phosphatase domain. SEX4 can dephosphorylate C6- and C3-glucosyl residues on native starch grains and related maltodextrin compounds in vitro. This protein interacts with the plant SnRK AKIN11, binds starch, and is localized in the chloroplast. sex4 mutants have elevated levels of starch.
TAIR Short Description:
dual specificity protein phosphatase (DsPTP1) family protein