Protein function
Encodes a negative regulator of gibberellin response that belongs to the DELLA family.
Phenotype
Single mutant: gai-d loss of function single mutant does not display any flowering-time phenotype.
[Peng et al., 1993] Overexpressor: gai gain of function mutant and
GAI overexpressor are late flowering under both SD and LD conditions.
[Wilson et al., 1992][Park et al., 2013][Putterill et al., 1995] Function:Probable transcriptional regulator that acts as a repressor of the gibberellin (GA) signaling pathway. No effect of the BOI proteins on its stability. Probably acts by participating in large multiprotein complexes that repress transcription of GA-inducible genes. Positively regulates XERICO expression. In contrast to RGA, it is less sensitive to GA. Its activity is probably regulated by other phytohormones such as auxin and ethylene.
[Data from UniProt]
Regulators, targets and interactors
Downstream actors
causality FT --
[Yu et al., 2012][Porri et al., 2012][Galvão et al., 2012] --
[View TAIR record]SPL9 --
[Yu et al., 2012][Porri et al., 2012][Galvão et al., 2012] --
[View TAIR record]MIR172A --
[Galvão et al., 2012] --
[View TAIR record]LFY --
[Blázquez et al., 2000][Eriksson et al., 2006][Blázquez et al., 1997] --
[View TAIR record]PIF4 --
[de Lucas et al., 2008] --
[View TAIR record]SPL5 --
[Yu et al., 2012][Porri et al., 2012][Galvão et al., 2012] --
[View TAIR record]MIR172C --
[Galvão et al., 2012] --
[View TAIR record]TSF --
[Porri et al., 2012][Galvão et al., 2012] --
[View TAIR record]SPL3 --
[Yu et al., 2012][Porri et al., 2012][Galvão et al., 2012] --
[View TAIR record]MIR172B --
[Galvão et al., 2012] --
[View TAIR record] Upstream actors
causality GID1A --
[Griffiths et al., 2006][Ariizumi et al., 2008][Nakajima et al., 2006][Silverstone et al., 2001][Peng et al., 1997] --
[View TAIR record]GID1C --
[Griffiths et al., 2006][Ariizumi et al., 2008][Nakajima et al., 2006][Silverstone et al., 2001][Peng et al., 1997] --
[View TAIR record]GID1B --
[Griffiths et al., 2006][Ariizumi et al., 2008][Nakajima et al., 2006][Silverstone et al., 2001][Peng et al., 1997] --
[View TAIR record] Protein-protein interactions
PIF4 --
[de Lucas et al., 2008] --
[View TAIR record]