Function
Pleiotropic regulator of glucose, stress and hormone responses. Also regulates cytochrome P450 CYP90A1/CPD. Coordinates the expression of hormone- and stress-related genes and genes related to cell wall modification and growth, leading to altered sugar-dependent growth and developmental responses. Component of the MAC complex that probably regulates defense responses through transcriptional control and thereby is essential for plant innate immunity. By suppressing the expression of several (1)O(2)-responsive genes, PRL1 seems to play a major role in modulating responses of plants to environmental changes by interconnecting (1)O(2)-mediated retrograde signaling with other signaling pathways. Acts as negative regulator of SNF1-related protein kinases AKIN10 and AKIN11 via the inhibition of their interaction with SKP1/ASK1. Component of the CUL4-RBX1-DDB1-PRL1 E3 ubiquitin-protein ligase complex, PRL1 may function as the substrate recognition module within this complex, leading to the AKIN10 degradation.
Sequence
MPAPTTEIEPIEAQSLKKLSLKSLKRSLELFSPVHGQFPPPDPEAKQIRLSHKMKVAFGGVEPVVSQPPRQPDRINEQPGPSNALSLAAPEGSKSTQKGATESAIVVGPTLLRPILPKGLNYTGSSGKSTTIIPANVSSYQRNLSTAALMERIPSRWPRPEWHAPWKNYRVIQGHLGWVRSVAFDPSNEWFCTGSADRTIKIWDVATGVLKLTLTGHIEQVRGLAVSNRHTYMFSAGDDKQVKCWDLEQNKVIRSYHGHLSGVYCLALHPTLDVLLTGGRDSVCRVWDIRTKMQIFALSGHDNTVCSVFTRPTDPQVVTGSHDTTIKFWDLRYGKTMSTLTHHKKSVRAMTLHPKENAFASASADNTKKFSLPKGEFCHNMLSQQKTIINAMAVNEDGVMVTGGDNGSIWFWDWKSGHSFQQSETIVQPGSLESEAGIYAACYDNTGSRLVTCEADKTIKMWKEDENATPETHPINFKPPKEIRRF