Protein function
Encodes a component of the circadian clock that belongs to the
PSEUDO-RESPONSE REGULATOR (
PRR) family.
Phenotype
Overexpressor: PRR5 overexpressor is early flowering under both SD and LD conditions.
[Sato et al., 2002] Single mutant: prr5 single mutant is late flowering under LD conditions only.
[Nakamichi et al., 2007][Nakamichi et al., 2005][Yamamoto et al., 2003] Multiple mutant: prr5;
prr7;
prr9 multiple mutant is late flowering under LD conditions only.
[Nakamichi et al., 2007][Nakamichi et al., 2005] Function:Transcriptional repressor of CCA1 and LHY, thereby controlling photoperiodic flowering response. Involved in the positive and negative feedback loops of the circadian clock. 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.
[Data from UniProt]
Regulators, targets and interactors
Downstream actors
causality RVE8 --
[Rugnone et al., 2013][Rawat et al., 2011] --
[View TAIR record]LNK2 --
[Rugnone et al., 2013][Rawat et al., 2011] --
[View TAIR record]LNK1 --
[Rugnone et al., 2013][Rawat et al., 2011] --
[View TAIR record] Upstream actors
causality CCA1 --
[Yamashino et al., 2008] --
[View TAIR record]LNK2 --
[Rugnone et al., 2013][Xie et al., 2014][Rawat et al., 2011] --
[View TAIR record]LNK1 --
[Rugnone et al., 2013][Xie et al., 2014][Rawat et al., 2011] --
[View TAIR record]RVE8 --
[Rugnone et al., 2013][Xie et al., 2014][Rawat et al., 2011] --
[View TAIR record]ZTL --
[Kiba et al., 2007] --
[View TAIR record] Protein-protein interactions