Function
Component of SCF(ASK-cullin-F-box) E3 ubiquitin ligase complexes, which may mediate the ubiquitination and subsequent proteasomal degradation of target proteins (By similarity). Together with FL/APO2, involved in the temporal regulation of meristem identity during both vegetative and reproductive developments in an APO2-dependent manner (PubMed:17666027, Ref.5, Ref.6, PubMed:15950602, PubMed:19386809, PubMed:21910771). Promotes spikelet formation by suppressing the precocious conversion of inflorescence meristems to spikelet meristems, probably via a positive regulation of class-C floral homeotic genes, but not of class-B genes, and through the control of cell proliferation in meristems (PubMed:17666027, Ref.6, PubMed:19386809, PubMed:21119645). Mediates culm development and strength/diameter enhancement at internodes (PubMed:21119645, PubMed:25381289). Required for the regulation of the plastochron, floral organ identity, and floral determinacy (PubMed:17666027, Ref.6, PubMed:15950602, PubMed:19386809). Controls the number of primary rachis branches (PRBs) (PubMed:20151298). May trigger the formation of vascular bundle systems which, consequently, promote carbohydrate translocation to panicles (PubMed:20151298). Involved in ozone-induced grain yield regulation (PubMed:25923431).
Sequence
MMNPRRLPPLPSSTSSASAADDMDPRVWRRLPQPLVDRILACLPTPSFLRLRAACRRFYHLLFSSPFLHSHLLLSPHLPFFAFVVPAAGHLLLLDPTATASWSRLPLPLPPVAGGPAAFSPAAASAGLLAFLSDASGHKTLLLANPITRLLAALPISPTPRLSPTVGLAAGPTSIIAVVAGDDLVSPFAVKNISADTFVADAASVPPSGFWAPSSLLPRLSSLDPRAGMAFASGRFYCMSSSPFAVLVFDVAENVWSKVQPPMRRFLRSPALVELGGGREGAARVALVSAVEKSRLSVPRSVRLWTLRGGGGGGGGGAWTEVARMPPEVHAQFAAAEGGRGFECAAHGDYVVLAPRGPVAQAPTSALVFDSRRDEWRWAPPCPYVVVAHHGGAGAAGFRVFAYEPRLATPAIGLLDATAPVALHGMHDG