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Article

Functional analysis of SPINDLY in gibberellin signaling in Arabidopsis.

Plant physiology - 1 Feb 2007

Silverstone Aron L, Tseng Tong-Seung, Swain Stephen M, Dill Alyssa, Jeong Sun Yong, Olszewski Neil E, Sun Tai-Ping

Abstract excerpt

The Arabidopsis (Arabidopsis thaliana) SPINDLY (SPY) protein negatively regulates the gibberellin (GA) signaling pathway. SPY is an O-linked N-acetylglucosamine (GlcNAc) transferase (OGT) with a protein-protein interaction domain consisting of 10 tetratricopeptide repeats (TPR). OGTs add a GlcNAc monosaccharide to serine/threonine residues of nuclear and cytosolic proteins. Determination of the molecular defects...

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Source

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Identifiers

PMID: 17142481
DOI: 10.1104/pp.106.091025
PMCID: PMC1803720

Genes

OGT
TPR

Provenance

PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-07.1.

Source receipt: pubmed, retrieved 7 Sept 2026.

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Functional analysis of SPINDLY in gibberellin signaling in Arabidopsis.PMID 17142481Read ↗

SPINDLY's role in the gibberellin response pathway.Semantic proximity Read ↗

Altered expression of SPINDLY affects gibberellin response and plant development.Semantic proximity Read ↗

SPINDLY is a nuclear-localized repressor of gibberellin signal transduction expressed throughout the plant.Semantic proximity Read ↗

Ectopic expression of the tetratricopeptide repeat domain of SPINDLY causes defects in gibberellin response.Semantic proximity Read ↗

Functional analysis of HvSPY, a negative regulator of GA response, in barley aleurone cells and Arabidopsis.Semantic proximity Read ↗

SPINDLY, a tetratricopeptide repeat protein involved in gibberellin signal transduction in Arabidopsis.Semantic proximity Read ↗

SPINDLY, a negative regulator of gibberellic acid signaling, is involved in the plant abiotic stress response.Semantic proximity Read ↗

Cytosolic activity of SPINDLY implies the existence of a DELLA-independent gibberellin-response pathway.Semantic proximity Read ↗

SPINDLY and GIGANTEA interact and act in Arabidopsis thaliana pathways involved in light responses, flowering, and rhythms in cotyledon movements.Semantic proximity Read ↗

Mutations at the SPINDLY locus of Arabidopsis alter gibberellin signal transduction.Semantic proximity Read ↗

SECRET AGENT and SPINDLY have overlapping roles in the development of Arabidopsis thaliana L. Heyn.Semantic proximity Read ↗

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