UniProt FUNCTION - probable transcriptional regulator that acts as a repressor of the gibberellin (GA) signaling pathway, probably acting by participating in large multiprotein complexes that repress transcription of GA-inducible genes; upon GA application it is degraded by the proteasome, allowing the GA signaling pathway.

Subcellular location is nucleus; the DELLA motif is required for GA-induced degradation; the protein is phosphorylated and ubiquitinated.

Belongs to the GRAS family, DELLA subfamily, with a C-terminal GRAS domain and an N-terminal DELLA regulatory region; the Green Revolution semi-dwarf alleles Rht-B1b and Rht-D1b carry N-terminal deletions/truncations.

Source of the preserved retired gibberellin-signaling annotation. Retirement of the mapping mechanism is distinct from assessment of this gene product’s biological function.

Nuclear localization (GO:0005634) assigned from the UniProt subcellular-location keyword; consistent with RHT-1's role as a nuclear transcriptional repressor.

The report summarizes DELLA-dependent growth restraint and Green Revolution allele biology; specific localization and transcriptional-mechanism claims require primary-source and construct checks.

The series of molecular signals mediated by the detection of gibberellic acid; the core biological process in which RHT-1/DELLA acts as the central repressor.

Any process that stops, prevents, or reduces the frequency, rate or extent of gibberellic acid mediated signaling; captures DELLA's defining negative-regulator role.