PYL13 is an abscisic acid (ABA) receptor crucial for ABA-mediated responses, including stomatal closure and germination inhibition. It uniquely inhibits group A protein phosphatase 2C (PP2C) activity, specifically PP2CA, independent of ABA.
Gene References Into Functions
PYL13 is notably the most potent ABA-independent inhibitor of PP2Cs. PMID: 24165892