Function
Transcriptional repressor of CCA1 and LHY, thereby controlling photoperiodic flowering response. Involved in the positive and negative feedback loops of the circadian clock. With RVE8, forms a negative feedback loop of the circadian clock (PubMed:21483796). Expression of several members of the ARR-like family is controlled by circadian rhythm. Proteolytic substrate of the E3 ubiquitin ligase SCF(ADO1) complex. APRR9, APRR7, and APRR5 coordinately act on the upstream region of the target genes to repress their expression from noon until midnight. The particular coordinated sequential expression of APRR9, APRR7, APRR5, APRR3 and APPR1 result to circadian waves that may be at the basis of the endogenous circadian clock. Negative regulator of shade avoidance response. Involved in the inhibition of leaf expansion in shade avoidance response.
Sequence
MTSSEEVVEVTVVKAPEAGGGKLSRRKIRKKDAGVDGLVKWERFLPKIALRVLLVEADDSTRQIIAALLRKCSYRVAAVPDGLKAWEMLKGKPESVDLILTEVDLPSISGYALLTLIMEHDICKNIPVIMMSTQDSVNTVYKCMLKGAADYLVKPLRRNELRNLWQHVWRRQTSLAPDSFPWNESVGQQKAEGASANNSNGKRDDHVVSGNGGDAQSSCTRPEMEGESADVEVSARDAVQMECAKSQFNETRLLANELQSKQAEAIDFMGASFRRTGRRNREESVAQYESRIELDLSLRRPNASENQSSGDRPSLHPSSASAFTRYVHRPLQTQCSASPVVTDQRKNVAASQDDNIVLMNQYNTSEPPPNAPRRNDTSFYTGADSPGPPFSNQLNSWPGQSSYPTPTPINNIQFRDPNTAYTSAMAPASLSPSPSSVSPHEYSSMFHPFNSKPEGLQDRDCSMDVDERRYVSSATEHSAIGNHIDQLIEKKNEDGYSLSVGKIQQSLQREAALTKFRMKRKDRCYEKKVRYESRKKLAEQRPRIKGQFVRQVQSTQAP