Protein function
Encodes a soluble gibberellin receptor that targets DELLA proteins.
Phenotype
Overexpressor: GID1A overexpression partially rescue the dwarf phenotype of
sly1 single mutant.
[Ariizumi et al., 2008] Single mutant: gid1a single mutant does not display any flowering-time phenotype under neither SD nor LD conditions.
[Griffiths et al., 2006] Multiple mutant: gid1a;
gid1b;
gid1c multiple mutant is extremely late flowering under LD conditions and fails to flower under SD conditions.
[Griffiths et al., 2006][Willige et al., 2007][Ariizumi et al., 2013] Function:Functions as soluble gibberellin (GA) receptor. GA is an essential hormone that regulates growth and development in plants. Binds with high affinity the biologically active gibberellin GA4, but has no affinity for the biologically inactive GAs. In response to GA, interacts with specific DELLA proteins, known as repressors of GA-induced growth, and targets them for degradation via proteasome. Seems to be required for GA signaling that controls root growth, seed germination, stem elongation and flower development. Partially redundant with GID1B and GID1C.
[Data from UniProt]
Regulators, targets and interactors
Downstream actors
causality GAI, RGA2 --
[Griffiths et al., 2006][Ariizumi et al., 2008][Nakajima et al., 2006][Silverstone et al., 2001][Peng et al., 1997] --
[View TAIR record]RGL2 --
[Griffiths et al., 2006][Ariizumi et al., 2008][Nakajima et al., 2006][Silverstone et al., 2001][Peng et al., 1997] --
[View TAIR record]RGL1 --
[Griffiths et al., 2006][Ariizumi et al., 2008][Nakajima et al., 2006][Silverstone et al., 2001][Peng et al., 1997] --
[View TAIR record]RGA1 --
[Griffiths et al., 2006][Ariizumi et al., 2008][Nakajima et al., 2006][Silverstone et al., 2001][Peng et al., 1997] --
[View TAIR record]RGL3 --
[Griffiths et al., 2006][Ariizumi et al., 2008][Nakajima et al., 2006][Silverstone et al., 2001][Peng et al., 1997] --
[View TAIR record] Upstream actors
Protein-protein interactions