LMPD Database

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LMP011393

UniProt Annotations

Entry Information
Gene Namebasic helix-loop-helix protein KIDARI
Protein EntryPRE6_ARATH
UniProt IDQ8GW32
SpeciesArabidopsis
Comments
Comment typeDescription
FunctionAtypical and probable non DNA-binding bHLH transcription factor that regulates light-mediated responses in day light conditions by binding and inhibiting the activity of the bHLH transcription factor HFR1, a critical regulator of light signaling and shade avoidance. Forms non-functional heterodimers with HFR1, causing liberation and activation of PIF4 from the transcriptionally inactive HFR1-PIF4 complex. {ECO:0000269|PubMed:16786307, ECO:0000269|PubMed:23224238}.
InductionCircadian regulation with a peak of expression at midday. {ECO:0000269|PubMed:16786307}.
MiscellaneousGain-of-function mutants kdr-D (T-DNA tagging) show long hypocotyls, pale green and slightly narrow leaves, elongated petioles and early flowering. They are not sensitive to the gibberellin inhibitor paclobutrazol during seed germination (PubMed:16786307). {ECO:0000305|PubMed:16786307}.
SimilarityContains 1 bHLH (basic helix-loop-helix) domain. {ECO:0000255|PROSITE-ProRule:PRU00981}.
Subcellular LocationCytoplasm {ECO:0000269|PubMed:23224238}. Nucleus {ECO:0000255|PROSITE-ProRule:PRU00981, ECO:0000269|PubMed:23224238}.
SubunitInteracts with HFR1. {ECO:0000269|PubMed:16786307, ECO:0000269|PubMed:23224238}.