NCBI Accession #
NP_187761.1
NCBI GenBank Nucleotide #
NM_111987.4
NCBI Official Full Name
Tetratricopeptide repeat (TPR)-like superfamily protein
NCBI Official Synonym Symbols
SPINDLY
NCBI Protein Information
Tetratricopeptide repeat (TPR)-like superfamily protein
NCBI Summary
Encodes a N-acetyl glucosamine transferase that may glycosylate other molecules involved in GA signaling. Contains a tetratricopeptide repeat region, and a novel carboxy-terminal region. SPY acts as both a repressor of GA responses and as a positive regulation of cytokinin signalling. SPY may be involved in reducing ROS accumulation in response to stress.
UniProt Protein Name
Probable UDP-N-acetylglucosamine--peptide N-acetylglucosaminyltransferase SPINDLY
UniProt Primary Accession #
Q96301
UniProt Secondary Accession #
Q56YX8
UniProt Related Accession #
Q96301
UniProt Comments
Probable O-linked N-acetylglucosamine transferase (OGT) involved in various processes such as gibberellin (GA) signaling pathway and circadian clock. OGTs catalyze the addition of nucleotide-activated sugars directly onto the polypeptide through O-glycosidic linkage with the hydroxyl of serine or threonine. Probably acts by adding O-linked sugars to yet unknown proteins. Acts as a repressor of GA signaling pathway to inhibit hypocotyl elongation. Functions with GIGANTEA (GI) in pathways controlling flowering, circadian cotyledon movements and hypocotyl elongation. Acts as a light-regulated promoter of elongation via its interaction with GI. Acts as an activator of cytokinin signaling. Required with SEC for gamete and seed development. Its OGT activity has been proved in vitro but not in vivo.