NCBI Accession #
NP_190393.1
NCBI GenBank Nucleotide #
NM_114679.4
NCBI Official Full Name
response regulator 5
NCBI Official Synonym Symbols
ARABIDOPSIS THALIANA RESPONSE REGULATOR 2; ARR5; ATRR2; IBC6; INDUCED BY CYTOKININ 6; response regulator 5
NCBI Protein Information
response regulator 5
NCBI Summary
Encodes a transcription repressor that mediates a negative feedback loop in cytokinin signalling. ARR5 expression is upregulated by Class I KNOX genes. Arr5 protein is stabilized by cytokinin in a two-component phosphorelay.
UniProt Synonym Gene Names
ATRR2; IBC6
UniProt Protein Name
Two-component response regulator ARR5
UniProt Synonym Protein Names
Response reactor 2
UniProt Primary Accession #
Q9SB04
UniProt Secondary Accession #
O80364; Q9SBH9
UniProt Related Accession #
Q9SB04
UniProt Comments
Functions as response regulator involved in His-to-Asp phosphorelay signal transduction system. Phosphorylation of the Asp residue in the receiver domain activates the ability of the protein to promote the transcription of target genes. Type-A response regulators seem to act as negative regulators of the cytokinin signaling.