Gene Symbol: IGO1
Description: phosphatase regulator
Alias: phosphatase regulator
Species: Saccharomyces cerevisiae S288c
Products:     IGO1

Top Publications

  1. Bontron S, Jaquenoud M, Vaga S, Talarek N, Bodenmiller B, Aebersold R, et al. Yeast endosulfines control entry into quiescence and chronological life span by inhibiting protein phosphatase 2A. Cell Rep. 2013;3:16-22 pubmed publisher
    ..Rim15 to distal readouts including the expression of Msn2/4- and Gis1-dependent genes involve the endosulfines Igo1/2...
  2. Luo X, Talarek N, De Virgilio C. Initiation of the yeast G0 program requires Igo1 and Igo2, which antagonize activation of decapping of specific nutrient-regulated mRNAs. RNA Biol. 2011;8:14-7 pubmed
    ..Gis1-dependent genes with posttranscriptional protection of the corresponding mRNAs via direct phosphorylation of Igo1/2...
  3. Juanes M, Khoueiry R, Kupka T, Castro A, Mudrak I, Ogris E, et al. Budding yeast greatwall and endosulfines control activity and spatial regulation of PP2A(Cdc55) for timely mitotic progression. PLoS Genet. 2013;9:e1003575 pubmed publisher
    ..Here we show that budding yeast endosulfines (Igo1 and Igo2) bind to PP2A(Cdc55) in a cell cycle-regulated manner upon Greatwall (Rim15)-dependent phosphorylation...
  4. Rossio V, Kazatskaya A, Hirabayashi M, Yoshida S. Comparative genetic analysis of PP2A-Cdc55 regulators in budding yeast. Cell Cycle. 2014;13:2073-83 pubmed publisher
    ..In this study, we compared the relative contribution of Zds1/Zds2 and ENSA-family proteins Igo1/Igo2 on Cdc55 functions in budding yeast mitosis...
  5. Moreno Torres M, Jaquenoud M, De Virgilio C. TORC1 controls G1-S cell cycle transition in yeast via Mpk1 and the greatwall kinase pathway. Nat Commun. 2015;6:8256 pubmed publisher
    ..Thus, Mpk1 and the greatwall kinase pathway serve TORC1 to coordinate the phosphorylation status of Sic1 and consequently START with nutrient availability. ..
  6. Thai V, Dephoure N, Weiss A, Ferguson J, Leitao R, Gygi S, et al. Protein Kinase C Controls Binding of Igo/ENSA Proteins to Protein Phosphatase 2A in Budding Yeast. J Biol Chem. 2017;292:4925-4941 pubmed publisher
    ..Together, the data suggest that Pkc1 controls PP2ACdc55 by multiple overlapping mechanisms. ..
  7. Talarek N, Gueydon E, Schwob E. Homeostatic control of START through negative feedback between Cln3-Cdk1 and Rim15/Greatwall kinase in budding yeast. elife. 2017;6: pubmed publisher
    ..We show that the yeast Rim15-Igo1,2 pathway, orthologous to Gwl-Arpp19/ENSA, is up-regulated in early G1 and helps promoting START by preventing PP2A<..
  8. Talarek N, Bontron S, De Virgilio C. Quantification of mRNA stability of stress-responsive yeast genes following conditional excision of open reading frames. RNA Biol. 2013;10:1299-308 pubmed publisher
    ..We further demonstrate that TORC1 controls the stability of these mRNAs via the Rim15-Igo1/2-PP2A(Cdc55) effector branch, which reportedly also controls Gis1 promoter recruitment...
  9. Lee P, Kim M, Paik S, Choi S, Cho B, Hahn J. Rim15-dependent activation of Hsf1 and Msn2/4 transcription factors by direct phosphorylation in Saccharomyces cerevisiae. FEBS Lett. 2013;587:3648-55 pubmed publisher
    ..Rim15 phosphorylates Hsf1 in vitro, suggesting that Rim15 might directly activate Hsf1. In addition, Igo1 and Igo2, Rim15 substrate proteins involved in mRNA stabilization, regulate mRNA levels of Hsf1 target genes...

More Information


  1. Sarkar S, Dalgaard J, Millar J, Arumugam P. The Rim15-endosulfine-PP2ACdc55 signalling module regulates entry into gametogenesis and quiescence via distinct mechanisms in budding yeast. PLoS Genet. 2014;10:e1004456 pubmed publisher
    ..report here that an analogous signalling module consisting of the serine-threonine kinase Rim15, the Endosulfines Igo1 and Igo2 and the Protein Phosphatase PP2ACdc55, regulates entry into both quiescence and gametogenesis in budding ..