Protein function
Encodes a component of the E3 ubiquitin ligase complex.
Phenotype
Overexpressor: UFO overexpression causes several floral defects, including supernumerary petals and stamens.
[Lee et al., 1997] Single mutant: ufo single mutant has multiple floral defects.
[Wilkinson et al., 1995][Samach et al., 1999][Levin et al., 1995][Ingram et al., 1995] Remarks: UFO is an upstream regulator of
AP3 expression and is therefore involved in floral meristem determinacy.
[Lee et al., 1997] 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). Considered as a meristem identity factor required for normal growth of the young floral meristem. Acts together with LEAFY to positively regulate the B class floral homeotic genes APETALA3 and PISTILLATA. In this way, operates as a region-specific regulator for petal and stamen development. Alternatively, may play a role as a negative regulator of the C class floral homeotic genes. Interacts together with the SKP1-like protein ASK1 to form a ubiquitin E3 ligase complex and could indirectly promote the ubiquitination and degradation of specific proteins controlling the floral primordia development like repressors of B class floral homeotic genes.
[Data from UniProt]
Regulators, targets and interactors
Downstream actors
causality AP3 --
[Chae et al., 2008][Lamb et al., 2002] --
[View TAIR record]PI --
[Lamb et al., 2002] --
[View TAIR record] Upstream actors
causality AP1 --
[Wuest et al., 2012] --
[View TAIR record]AP3 --
[Wuest et al., 2012][ÓMaoiléidigh et al., 2013] --
[View TAIR record]PI --
[Wuest et al., 2012][ÓMaoiléidigh et al., 2013] --
[View TAIR record]BAF60, CHC1 --
[Sacharowski et al., 2015] --
[View TAIR record]SEP3 --
[Wuest et al., 2012][ÓMaoiléidigh et al., 2013] --
[View TAIR record]AG --
[Wuest et al., 2012][ÓMaoiléidigh et al., 2013] --
[View TAIR record] Protein-protein interactions
LFY --
[Parcy et al., 1998][Levin et al., 1995][Chae et al., 2008][Lee et al., 1997] --
[View TAIR record]