Plant Transcription factor database - Universität Potsdam
version: 3.0

Arabidopsis thaliana Pseudo ARR-B Family


Tajima et al. 2004: In Arabidopsis thaliana, a Histidine-to-Aspartate (His-->Asp) phosphorelay is involved in the signal transduction for propagation of certain stimuli, such as plant hormones. Through the phosphorelay, the type-B phospho-accepting response regulator (ARR) family members serve as DNA-binding transcriptional regulators, whose activities are most likely regulated by phosphorylation/dephosphorylation.

Members of this family
  SHOULD possess CCT Response_reg domains

Domain alignments

This family is also present in:


There are 5 gene models in this family

Gene modelDescriptionDomains
AT2G46790.1 APRR9 (PSEUDO-RESPONSE REGULATOR 9); transcription regulator CCT Response_reg
AT5G02810.1 PRR7 (PSEUDO-RESPONSE REGULATOR 7); transcription regulator CCT Response_reg
AT5G24470.1 APRR5 (PSEUDO-RESPONSE REGULATOR 5); transcription regulator CCT Response_reg
AT5G60100.1 APRR3 (PSEUDO-RESPONSE REGULATOR 3); transcription regulator CCT Response_reg
AT5G61380.1 TOC1 (TIMING OF CAB EXPRESSION 1); transcription regulator CCT Response_reg

General references

Aoyama, T; Oka, A. 2003. Cytokinin signal transduction in plant cells. J. Plant Res. 116(3):221-31 PUBMEDID:12836044
D'Agostino, IB; Kieber, JJ. 1999. Phosphorelay signal transduction: the emerging family of plant response regulators. Trends Biochem. Sci. 24(11):452-6 PUBMEDID:10542414
Kakimoto, T. 2003. Perception and signal transduction of cytokinins. Annu Rev Plant Biol 54:605-27 PUBMEDID:14503005
Kolmos, E; Schoof, H; Plümer, M; Davis, SJ. 2008. Structural insights into the function of the core-circadian factor TIMING OF CAB2 EXPRESSION 1 (TOC1). J Circadian Rhythms 6:3 PUBMEDID:18298828