Gene Symbol: ATARCA
Description: Transducin/WD40 repeat-like superfamily protein
Alias: RACK1A, RACK1A_AT, RECEPTOR FOR ACTIVATED C KINASE 1 A, T10F20.9, WD-40 REPEAT PROTEIN ATARCA, Transducin/WD40 repeat-like superfamily protein
Species: thale cress
Products:     ATARCA

Top Publications

  1. Guo J, Wang S, Valerius O, Hall H, Zeng Q, Li J, et al. Involvement of Arabidopsis RACK1 in protein translation and its regulation by abscisic acid. Plant Physiol. 2011;155:370-83 pubmed publisher
    ..Consistently, all three Arabidopsis RACK1 homologous genes, namely RACK1A, RACK1B, and RACK1C, complemented the growth defects of the S. cerevisiae cross pathway control2/rack1 mutant...
  2. Chen J, Ullah H, Temple B, Liang J, Guo J, Alonso J, et al. RACK1 mediates multiple hormone responsiveness and developmental processes in Arabidopsis. J Exp Bot. 2006;57:2697-708 pubmed
    ..It is reported here that one member of this gene family, RACK1A, previously identified as the Arabidopsis homologue of the tobacco arcA gene, mediates hormone responses and plays ..
  3. Guo J, Chen J. RACK1 genes regulate plant development with unequal genetic redundancy in Arabidopsis. BMC Plant Biol. 2008;8:108 pubmed publisher
    ..where RACK1 is encoded by a single gene, Arabidopsis genome contains three RACK1 homologous genes, designated as RACK1A, RACK1B and RACK1C, respectively...
  4. Guo J, Wang J, Xi L, Huang W, Liang J, Chen J. RACK1 is a negative regulator of ABA responses in Arabidopsis. J Exp Bot. 2009;60:3819-33 pubmed publisher
    ..genes act redundantly to regulate ABA responses in seed germination, cotyledon greening and root growth, because rack1a single and double mutants are hypersensitive to ABA in each of these processes...
  5. Kakehi J, Kawano E, Yoshimoto K, Cai Q, Imai A, Takahashi T. Mutations in ribosomal proteins, RPL4 and RACK1, suppress the phenotype of a thermospermine-deficient mutant of Arabidopsis thaliana. PLoS ONE. 2015;10:e0117309 pubmed publisher
    ..These ribosomal proteins are suggested to act in the control of uORF-mediated translation repression of SAC51, which is derepressed by thermospermine. ..
  6. Fennell H, Olawin A, Mizanur R, Izumori K, Chen J, Ullah H. Arabidopsis scaffold protein RACK1A modulates rare sugar D-allose regulated gibberellin signaling. Plant Signal Behav. 2012;7:1407-10 pubmed publisher
    ..Scaffold protein RACK1A in the model plant Arabidopsis is implicated in the GA pathway as rack1a knockout mutants show insensitivity to GA ..
  7. Speth C, Willing E, Rausch S, Schneeberger K, Laubinger S. RACK1 scaffold proteins influence miRNA abundance in Arabidopsis. Plant J. 2013;76:433-45 pubmed publisher
    ..In conclusion, our study identified complex functioning of RACK1 proteins in the Arabidopsis miRNA pathway; these proteins are important for miRNA production and therefore plant development. ..
  8. Urano D, Czarnecki O, Wang X, Jones A, Chen J. Arabidopsis receptor of activated C kinase1 phosphorylation by WITH NO LYSINE8 KINASE. Plant Physiol. 2015;167:507-16 pubmed publisher
    ..The phosphorylation-dead form, RACK1A(S122A/T162A), but not the phosphomimetic form, RACK1A(S122D/T162E), rescued the rack1a null mutant, implying that ..
  9. Cheng Z, Li J, Niu Y, Zhang X, Woody O, Xiong Y, et al. Pathogen-secreted proteases activate a novel plant immune pathway. Nature. 2015;521:213-6 pubmed publisher
    ..The ability of P. aeruginosa to infect both plants and animals makes it an excellent model to identify novel immunoregulatory strategies that account for its niche adaptation to diverse host tissues and immune systems. ..

More Information


  1. Olejnik K, Bucholc M, Anielska Mazur A, Lipko A, Kujawa M, Modzelan M, et al. Arabidopsis thaliana Nudix hydrolase AtNUDT7 forms complexes with the regulatory RACK1A protein and Ggamma subunits of the signal transducing heterotrimeric G protein. Acta Biochim Pol. 2011;58:609-16 pubmed
    ..binding assay of proteins derived from cultured Arabidopsis cell extracts we identified the regulatory protein RACK1A as an AtNUDT7-interactor...