Gene Symbol: CDC55
Description: protein phosphatase 2A regulatory subunit CDC55
Alias: TMR4, protein phosphatase 2A regulatory subunit CDC55
Species: Saccharomyces cerevisiae S288c

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 that Rim15, analogous to the greatwall kinase in Xenopus, phosphorylates endosulfines to directly inhibit the Cdc55-protein phosphatase 2A (PP2A(Cdc55))...
  2. Queralt E, Uhlmann F. Separase cooperates with Zds1 and Zds2 to activate Cdc14 phosphatase in early anaphase. J Cell Biol. 2008;182:873-83 pubmed publisher
    ..At anaphase onset, separase-dependent down-regulation of PP2A(Cdc55) allows phosphorylation of Net1 and consequent Cdc14 release...
  3. Clift D, Bizzari F, Marston A. Shugoshin prevents cohesin cleavage by PP2A(Cdc55)-dependent inhibition of separase. Genes Dev. 2009;23:766-80 pubmed publisher
    ..We show that Shugoshin can prevent separase activation independently of securin. Instead, PP2A(Cdc55) is essential for Shugoshin-mediated inhibition of separase...
  4. Yang H, Jiang W, Gentry M, Hallberg R. Loss of a protein phosphatase 2A regulatory subunit (Cdc55p) elicits improper regulation of Swe1p degradation. Mol Cell Biol. 2000;20:8143-56 pubmed
    b>CDC55 encodes a Saccharomyces cerevisiae protein phosphatase 2A (PP2A) regulatory subunit...
  5. Pal G, Paraz M, Kellogg D. Regulation of Mih1/Cdc25 by protein phosphatase 2A and casein kinase 1. J Cell Biol. 2008;180:931-45 pubmed publisher
    ..1 is responsible for most of the hyperphosphorylation of Mih1, whereas protein phosphatase 2A associated with Cdc55 dephosphorylates Mih1...
  6. Bizzari F, Marston A. Cdc55 coordinates spindle assembly and chromosome disjunction during meiosis. J Cell Biol. 2011;193:1213-28 pubmed publisher
    ..How these events are coupled is unknown. In this paper, we show, in budding yeast, that the protein phosphatase 2A regulatory subunit Cdc55 couples the loss of linkages between chromosomes with nuclear division by restraining two ..
  7. Li Y, Wei H, Hsieh T, Pallas D. Cdc55p-mediated E4orf4 growth inhibition in Saccharomyces cerevisiae is mediated only in part via the catalytic subunit of protein phosphatase 2A. J Virol. 2008;82:3612-23 pubmed publisher
    ..They also indicate that Ppm1p has a function other than regulating the assembly of PP2A heterotrimers and suggest that selective PP2A trimer inhibitors and PP6 inhibitors may be useful as adjuvant anticancer therapies. ..
  8. Calabria I, Baro B, Rodriguez Rodriguez J, Russiñol N, Queralt E. Zds1 regulates PP2A(Cdc55) activity and Cdc14 activation during mitotic exit through its Zds_C motif. J Cell Sci. 2012;125:2875-84 pubmed publisher
    ..promotes the downregulation of the protein phosphatase 2A in conjunction with its Cdc55p regulatory subunit (PP2A(Cdc55)) in early anaphase, enabling accumulation of phosphorylated forms of Net1p and release of Cdc14p from the ..
  9. Rossio V, Yoshida S. Spatial regulation of Cdc55-PP2A by Zds1/Zds2 controls mitotic entry and mitotic exit in budding yeast. J Cell Biol. 2011;193:445-54 pubmed publisher
    Budding yeast CDC55 encodes a regulatory B subunit of the PP2A (protein phosphatase 2A), which plays important roles in mitotic entry and mitotic exit...

More Information


  1. Healy A, Zolnierowicz S, Stapleton A, Goebl M, DePaoli Roach A, Pringle J. CDC55, a Saccharomyces cerevisiae gene involved in cellular morphogenesis: identification, characterization, and homology to the B subunit of mammalian type 2A protein phosphatase. Mol Cell Biol. 1991;11:5767-80 pubmed
    ..of a collection of cold-sensitive mutants of Saccharomyces cerevisiae led to the identification of a new gene, CDC55, which appears to be involved in the morphogenetic events of the cell cycle...
  2. Evans D, Hemmings B. Mutation of the C-terminal leucine residue of PP2Ac inhibits PR55/B subunit binding and confers supersensitivity to microtubule destabilization in Saccharomyces cerevisiae. Mol Gen Genet. 2000;264:425-32 pubmed
  3. Chiroli E, Rossio V, Lucchini G, Piatti S. The budding yeast PP2ACdc55 protein phosphatase prevents the onset of anaphase in response to morphogenetic defects. J Cell Biol. 2007;177:599-611 pubmed
    ..We find that the protein phosphatase PP2A bound to its regulatory subunit Cdc55 plays a key role in this process, uncovering a new function for PP2A(Cdc55) in controlling a noncanonical pathway ..
  4. Yasutis K, Vignali M, Ryder M, Tameire F, Dighe S, Fields S, et al. Zds2p regulates Swe1p-dependent polarized cell growth in Saccharomyces cerevisiae via a novel Cdc55p interaction domain. Mol Biol Cell. 2010;21:4373-86 pubmed publisher
    ..Supporting this model, deletion of CDC55 rescues the aberrant bud morphology of a zds1?zds2? strain...
  5. Harvey S, Enciso G, Dephoure N, Gygi S, Gunawardena J, Kellogg D. A phosphatase threshold sets the level of Cdk1 activity in early mitosis in budding yeast. Mol Biol Cell. 2011;22:3595-608 pubmed publisher
    ..We discovered that a specific form of protein phosphatase 2A (PP2A(Cdc55)) opposes the initial phosphorylation of Wee1 by Cdk1...
  6. Queralt E, Lehane C, Novak B, Uhlmann F. Downregulation of PP2A(Cdc55) phosphatase by separase initiates mitotic exit in budding yeast. Cell. 2006;125:719-32 pubmed
    ..Here, we show that PP2A(Cdc55) phosphatase keeps Net1 underphosphorylated in metaphase...
  7. Wu J, Tolstykh T, Lee J, Boyd K, Stock J, Broach J. Carboxyl methylation of the phosphoprotein phosphatase 2A catalytic subunit promotes its functional association with regulatory subunits in vivo. EMBO J. 2000;19:5672-81 pubmed
    ..These phenotypes can be reversed by overexpression of the B regulatory subunit. These results demonstrate that Ppm1 is the sole PP2A methyltransferase in yeast and that its activity is required for the integrity of the PP2A holoenzyme. ..
  8. Yellman C, Burke D. The role of Cdc55 in the spindle checkpoint is through regulation of mitotic exit in Saccharomyces cerevisiae. Mol Biol Cell. 2006;17:658-66 pubmed
    b>Cdc55, a B-type regulatory subunit of protein phosphatase 2A, has been implicated in mitotic spindle checkpoint activity and maintenance of sister chromatid cohesion during metaphase...
  9. Tang X, Wang Y. Pds1/Esp1-dependent and -independent sister chromatid separation in mutants defective for protein phosphatase 2A. Proc Natl Acad Sci U S A. 2006;103:16290-5 pubmed
    ..Mutation of CDC55, which encodes a B regulatory subunit of protein phosphatase 2A (PP2A), results in precocious sister chromatid ..
  10. Koren R, Rainis L, Kleinberger T. The scaffolding A/Tpd3 subunit and high phosphatase activity are dispensable for Cdc55 function in the Saccharomyces cerevisiae spindle checkpoint and in cytokinesis. J Biol Chem. 2004;279:48598-606 pubmed
    ..An interaction with an active PP2A containing the B subunit, or its homologue in yeast, Cdc55, is required for E4orf4-induced apoptosis in mammalian cells and for induction of growth arrest in Saccharomyces ..
  11. Jiang Y, Broach J. Tor proteins and protein phosphatase 2A reciprocally regulate Tap42 in controlling cell growth in yeast. EMBO J. 1999;18:2782-92 pubmed
    ..We show that inactivation of either Cdc55 or Tpd3, which regulate Pph21/22 activity, results in rapamycin resistance and that this resistance correlates ..
  12. Kerr G, Sarkar S, Tibbles K, Petronczki M, Millar J, Arumugam P. Meiotic nuclear divisions in budding yeast require PP2A(Cdc55)-mediated antagonism of Net1 phosphorylation by Cdk. J Cell Biol. 2011;193:1157-66 pubmed publisher
    ..this paper, we report that premature activation of FEAR during meiosis caused by loss of protein phosphatase PP2A(Cdc55) activity blocks bipolar spindle assembly and nuclear divisions...
  13. Wicky S, Tjandra H, Schieltz D, Yates J, Kellogg D. The Zds proteins control entry into mitosis and target protein phosphatase 2A to the Cdc25 phosphatase. Mol Biol Cell. 2011;22:20-32 pubmed publisher
    ..In budding yeast, entry into mitosis is controlled by a specific form of PP2A that is associated with the Cdc55 regulatory subunit (PP2A(Cdc55))...
  14. Wang Y, Ng T. Phosphatase 2A negatively regulates mitotic exit in Saccharomyces cerevisiae. Mol Biol Cell. 2006;17:80-9 pubmed
    ..Genes that encode the B-regulatory subunit (Cdc55) and the three catalytic subunits (Pph21, Pph22, and Pph3) of phosphatase 2A (PP2A) were isolated...
  15. Wang Y, Burke D. Cdc55p, the B-type regulatory subunit of protein phosphatase 2A, has multiple functions in mitosis and is required for the kinetochore/spindle checkpoint in Saccharomyces cerevisiae. Mol Cell Biol. 1997;17:620-6 pubmed
    ..ctf13 cdc55 double mutants could not maintain a ctf13-induced mitotic delay, as determined by antitubulin staining and levels ..
  16. Yaakov G, THORN K, Morgan D. Separase biosensor reveals that cohesin cleavage timing depends on phosphatase PP2A(Cdc55) regulation. Dev Cell. 2012;23:124-36 pubmed publisher
    ..Cohesin near centromeres and telomeres is cleaved at the same rate and time. Protein phosphatase PP2A(Cdc55) inhibits cohesin cleavage by counteracting polo-kinase phosphorylation of Scc1...
  17. Gentry M, Hallberg R. Localization of Saccharomyces cerevisiae protein phosphatase 2A subunits throughout mitotic cell cycle. Mol Biol Cell. 2002;13:3477-92 pubmed
    ..Although Rts1p and Tpd3p required heterotrimer formation to achieve normal localization, Cdc55p achieved its normal localization in the absence of either an A or C subunit. ..
  18. Wei H, Ashby D, Moreno C, Ogris E, Yeong F, Corbett A, et al. Carboxymethylation of the PP2A catalytic subunit in Saccharomyces cerevisiae is required for efficient interaction with the B-type subunits Cdc55p and Rts1p. J Biol Chem. 2001;276:1570-7 pubmed
    ..Moreover, decreased Cdc55p and Tpd3p binding invariably resulted in nocodazole sensitivity, a known phenotype of CDC55 or TPD3 deletion...
  19. Hombauer H, Weismann D, Mudrak I, Stanzel C, Fellner T, Lackner D, et al. Generation of active protein phosphatase 2A is coupled to holoenzyme assembly. PLoS Biol. 2007;5:e155 pubmed
    ..We propose a novel model of PP2A biogenesis in which a tightly controlled activation cascade protects cells from untargeted activity of the free catalytic PP2A subunit. ..
  20. Chauhan N, Visram M, Cristobal Sarramian A, Sarkleti F, Kohlwein S. Morphogenesis checkpoint kinase Swe1 is the executor of lipolysis-dependent cell-cycle progression. Proc Natl Acad Sci U S A. 2015;112:E1077-85 pubmed publisher
    ..We propose a model by which TG-derived sphingolipids are required to activate the protein phosphatase 2A (PP2A(Cdc55)) to attenuate Swe1 phosphorylation and its inhibitory effect on Cdc28 at the G1/S transition of the cell cycle.
  21. 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
    ..orthologous to Gwl-Arpp19/ENSA, is up-regulated in early G1 and helps promoting START by preventing PP2ACdc55 to dephosphorylate Whi5...
  22. 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
    ..the C-terminus of Sic1 requires stimulation of the mitogen-activated protein kinase, Mpk1, and inhibition of the Cdc55 protein phosphatase 2A (PP2A(Cdc55)) by greatwall kinase-activated endosulfines...
  23. Anastasia S, Nguyen D, Thai V, Meloy M, Macdonough T, Kellogg D. A link between mitotic entry and membrane growth suggests a novel model for cell size control. J Cell Biol. 2012;197:89-104 pubmed publisher
    ..are relayed by the Rho1 GTPase, protein kinase C (Pkc1), and a specific form of protein phosphatase 2A (PP2A(Cdc55))...
  24. Rossio V, Michimoto T, Sasaki T, Ohbayashi I, Kikuchi Y, Yoshida S. Nuclear PP2A-Cdc55 prevents APC-Cdc20 activation during the spindle assembly checkpoint. J Cell Sci. 2013;126:4396-405 pubmed publisher
    b>Cdc55, a regulatory B-subunit of protein phosphatase 2A (PP2A) complex, is essential for the spindle assembly checkpoint (SAC) in budding yeast, but the regulation and molecular targets of PP2A-Cdc55 have not been clearly defined or are ..
  25. Blacketer M, Koehler C, Coats S, Myers A, Madaule P. Regulation of dimorphism in Saccharomyces cerevisiae: involvement of the novel protein kinase homolog Elm1p and protein phosphatase 2A. Mol Cell Biol. 1993;13:5567-81 pubmed
    ..also showed that pseudohyphal differentiation in response to nitrogen starvation is dependent on the product of CDC55, a putative B regulatory subunit of protein phosphatase 2A, and a synthetic phenotype was observed in elm1 cdc55 ..
  26. Matmati N, Metelli A, Tripathi K, Yan S, Mohanty B, Hannun Y. Identification of C18:1-phytoceramide as the candidate lipid mediator for hydroxyurea resistance in yeast. J Biol Chem. 2013;288:17272-84 pubmed publisher
    ..Because phytoceramide activates protein phosphatases in yeast, we evaluated the role of CDC55, the regulatory subunit of ceramide-activated protein phosphatase PP2A...
  27. Liang F, Wang Y. DNA damage checkpoints inhibit mitotic exit by two different mechanisms. Mol Cell Biol. 2007;27:5067-78 pubmed
    ..In contrast to previous data, the Rad53 pathway negatively regulates MEN independently of Cdc5, a Polo-like kinase essential for mitotic exit. Instead, a defective Rad53 pathway alleviates the inhibition of MEN by Bfa1. ..
  28. Jonasson E, Rossio V, Hatakeyama R, Abe M, Ohya Y, Yoshida S. Zds1/Zds2-PP2ACdc55 complex specifies signaling output from Rho1 GTPase. J Cell Biol. 2016;212:51-61 pubmed publisher
    ..Here we identified the Zds1/Zds2-protein phosphatase 2A(Cdc55) (PP2A(Cdc55)) complex as a novel Rho1 effector that regulates Rho1 signaling specificity...
  29. 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
    ..PP2A that controls mitosis is associated with a conserved regulatory subunit that is called B55 in vertebrates and Cdc55 in budding yeast. The activity of this form of PP2A can be inhibited by binding of conserved Igo/ENSA proteins...
  30. Scarfone I, Venturetti M, Hotz M, Lengefeld J, Barral Y, Piatti S. Asymmetry of the budding yeast Tem1 GTPase at spindle poles is required for spindle positioning but not for mitotic exit. PLoS Genet. 2015;11:e1004938 pubmed publisher
    ..Thus, asymmetry of the Bub2/Bfa1/Tem1 complex is crucial to control Kar9 distribution and spindle positioning during mitosis. ..
  31. Yeasmin A, Waliullah T, Kondo A, Kaneko A, Koike N, Ushimaru T. Orchestrated Action of PP2A Antagonizes Atg13 Phosphorylation and Promotes Autophagy after the Inactivation of TORC1. PLoS ONE. 2016;11:e0166636 pubmed publisher
    ..Here, we show that two protein phosphatase 2A (PP2A) phosphatases, PP2A-Cdc55 and PP2A-Rts1, which are activated by inactivation of TORC1, are required for sufficient Atg13 dephosphorylation ..
  32. McCourt P, Morgan J, Nickels J. Stress-induced ceramide-activated protein phosphatase can compensate for loss of amphiphysin-like activity in Saccharomyces cerevisiae and functions to reinitiate endocytosis. J Biol Chem. 2009;284:11930-41 pubmed publisher
    ..Here we show cells lacking Rvs161 require Cdc55, the B subunit of the yeast ceramide-activated protein phosphatase, for viability under heat stress...
  33. Yellman C, Roeder G. Cdc14 Early Anaphase Release, FEAR, Is Limited to the Nucleus and Dispensable for Efficient Mitotic Exit. PLoS ONE. 2015;10:e0128604 pubmed publisher
    ..Our findings clarify the distinction between FEAR and MEN-dependent Cdc14 activities and will help guide emerging quantitative models of this cell cycle transition. ..
  34. Bokros M, Gravenmier C, Jin F, Richmond D, Wang Y. Fin1-PP1 Helps Clear Spindle Assembly Checkpoint Protein Bub1 from Kinetochores in Anaphase. Cell Rep. 2016;14:1074-1085 pubmed publisher
    ..This mechanism is required for efficient SAC silencing after SAC is challenged, and untimely Fin1-kinetochore association causes premature SAC silencing and chromosome missegregation. ..
  35. Godfrey M, Touati S, Kataria M, Jones A, Snijders A, Uhlmann F. PP2ACdc55 Phosphatase Imposes Ordered Cell-Cycle Phosphorylation by Opposing Threonine Phosphorylation. Mol Cell. 2017;65:393-402.e3 pubmed publisher
    ..Here, using the budding yeast model, we show that the abundant PP2ACdc55 phosphatase counteracts Cdk phosphorylation during interphase and delays phosphorylation of late Cdk ..
  36. Sun Y, Miao Y, Yamane Y, Zhang C, Shokat K, Takematsu H, et al. Orm protein phosphoregulation mediates transient sphingolipid biosynthesis response to heat stress via the Pkh-Ypk and Cdc55-PP2A pathways. Mol Biol Cell. 2012;23:2388-98 pubmed publisher
    ..We identified Cdc55-protein phosphatase 2A (PP2A) as a key phosphatase that counteracts Ypk1 activity in Orm-mediated sphingolipid ..
  37. Sutter B, Wu X, Laxman S, Tu B. Methionine inhibits autophagy and promotes growth by inducing the SAM-responsive methylation of PP2A. Cell. 2013;154:403-15 pubmed publisher
    ..Thus, methionine and SAM levels represent a critical gauge of amino acid availability that is sensed via the methylation of PP2A to reciprocally regulate cell growth and autophagy. ..
  38. Boronat S, Campbell J. Mitotic Cdc6 stabilizes anaphase-promoting complex substrates by a partially Cdc28-independent mechanism, and this stabilization is suppressed by deletion of Cdc55. Mol Cell Biol. 2007;27:1158-71 pubmed
    ..The deletion of SWE1, RAD24, MAD2, or BUB2 had no effect. However, disrupting CDC55, a PP2A regulatory subunit, suppressed the Cdc6p-dependent delay of Pds1 and Clb2 destruction...
  39. Mösch H, Fink G. Dissection of filamentous growth by transposon mutagenesis in Saccharomyces cerevisiae. Genetics. 1997;145:671-84 pubmed
    ..signaling pathway, and we thereby identified 16 different genes, CDC39, STE12, TEC1, WHI3, NAB1, DBR1, CDC55, SRV2, TPM1, SPA2, BNI1, DFG5, DFG9, DFG10, BUD8 and DFG16, mutations that block filamentous growth...
  40. Wang X, Hoekstra M, DeMaggio A, Dhillon N, Vancura A, Kuret J, et al. Prenylated isoforms of yeast casein kinase I, including the novel Yck3p, suppress the gcs1 blockage of cell proliferation from stationary phase. Mol Cell Biol. 1996;16:5375-85 pubmed
    ..The ability of an increased casein kinase I gene dosage to suppress the effects caused by the absence of Gcs1p suggests that Gcs1p and Yck1p-Yck2p affect parallel pathways. ..
  41. 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 most eukaryotic systems, Cdc14 is the main Cdk1-antagonizing phosphatase in budding yeast, while the PP2A(Cdc55) phosphatase promotes, instead of preventing, mitotic entry by participating to the positive feedback loop of Cdk1 ..
  42. Zuzuarregui A, Kupka T, Bhatt B, Dohnal I, Mudrak I, Friedmann C, et al. M-Track: detecting short-lived protein-protein interactions in vivo. Nat Methods. 2012;9:594-6 pubmed publisher
  43. McCourt P, Gallo Ebert C, Gonghong Y, Jiang Y, Nickels J. PP2A(Cdc55) regulates G1 cyclin stability. Cell Cycle. 2013;12:1201-10 pubmed publisher
    ..Here we show that in S. cerevisiae, a heterotrimeric protein phosphatase 2A (PP2A(Cdc55)) containing the mammalian PPP2R2/PR55 B subunit ortholog Cdc55 regulates the stability of the G1 cyclin Cln2 by ..
  44. Barbosa A, Pereira C, Osorio H, Moradas Ferreira P, Costa V. The ceramide-activated protein phosphatase Sit4p controls lifespan, mitochondrial function and cell cycle progression by regulating hexokinase 2 phosphorylation. Cell Cycle. 2016;15:1620-30 pubmed publisher
    ..The overall results suggest that Hxk2p functions downstream of Sit4p in the control of cell cycle, mitochondrial function, oxidative stress resistance and chronological lifespan. ..
  45. Tobe B, Kitazono A, Garcia J, Gerber R, Bevis B, Choy J, et al. Morphogenesis signaling components influence cell cycle regulation by cyclin dependent kinase. Cell Div. 2009;4:12 pubmed publisher
    ..The dynamic balance between Cks1- and Swe1-dependent regulation of Cdc28 and, thereby, the timing of mitosis during yeast dimorphism is regulated in part by Ras2/cAMP-mediated PKA signaling, a key pathway controlling filamentous growth. ..
  46. Peplowska K, Wallek A, Storchova Z. Sgo1 regulates both condensin and Ipl1/Aurora B to promote chromosome biorientation. PLoS Genet. 2014;10:e1004411 pubmed publisher
    ..Our findings identify shugoshin as a versatile molecular adaptor that governs chromosome biorientation...
  47. Garipler G, Mutlu N, Lack N, Dunn C. Deletion of conserved protein phosphatases reverses defects associated with mitochondrial DNA damage in Saccharomyces cerevisiae. Proc Natl Acad Sci U S A. 2014;111:1473-8 pubmed publisher
    ..Our work highlights the important role that nutrient-responsive signaling pathways can play in determining the response to mitochondrial dysfunction. ..
  48. Maoz T, Koren R, Ben Ari I, Kleinberger T. YND1 interacts with CDC55 and is a novel mediator of E4orf4-induced toxicity. J Biol Chem. 2005;280:41270-7 pubmed
    ..YND1 and CDC55 also interacted genetically with CDC20 and CDH1/HCT1, encoding activating subunits of the anaphase-promoting ..
  49. 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...
  50. 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
    b>Cdc55, a regulatory B subunit of the protein phosphatase 2A (PP2A) complex, plays various functions during mitosis...
  51. Raspelli E, Cassani C, Lucchini G, Fraschini R. Budding yeast Dma1 and Dma2 participate in regulation of Swe1 levels and localization. Mol Biol Cell. 2011;22:2185-97 pubmed publisher
    ..Taken together, the data highlight a previously unknown role of these proteins in the complex regulation of Swe1 and suggest that they might contribute to control, directly or indirectly, Swe1 ubiquitylation. ..
  52. Tate J, Georis I, Dubois E, Cooper T. Distinct phosphatase requirements and GATA factor responses to nitrogen catabolite repression and rapamycin treatment in Saccharomyces cerevisiae. J Biol Chem. 2010;285:17880-95 pubmed publisher
    ..We previously demonstrated that the Sit4 and Pph21/22-Tpd3-Cdc55/Rts1 requirements for nuclear Gln3 localization differ...
  53. Castermans D, Somers I, Kriel J, Louwet W, Wera S, Versele M, et al. Glucose-induced posttranslational activation of protein phosphatases PP2A and PP1 in yeast. Cell Res. 2012;22:1058-77 pubmed publisher
    ..Glucose activation of PP2A is controlled by regulatory subunits Rts1, Cdc55, Rrd1 and Rrd2...
  54. Heger C, Wrann C, Collins R. Phosphorylation provides a negative mode of regulation for the yeast Rab GTPase Sec4p. PLoS ONE. 2011;6:e24332 pubmed publisher
  55. Reiter W, Klopf E, De Wever V, Anrather D, Petryshyn A, Roetzer A, et al. Yeast protein phosphatase 2A-Cdc55 regulates the transcriptional response to hyperosmolarity stress by regulating Msn2 and Msn4 chromatin recruitment. Mol Cell Biol. 2013;33:1057-72 pubmed publisher
    We have identified Cdc55, a regulatory B subunit of protein phosphatase 2A (PP2A), as an essential activating factor for stress gene transcription in Saccharomyces cerevisiae...
  56. Nolt J, Rice L, Gallo Ebert C, Bisher M, Nickels J. PP2A (Cdc)?? is required for multiple events during meiosis I. Cell Cycle. 2011;10:1420-34 pubmed
    ..We show a PP2A (Cdc)?? containing the human B/55 family B subunit ortholog, Cdc55, is required for progression through meiosis I. Mutant cells lacking Cdc55 remain mononucleated...
  57. Kerr G, Wong J, Arumugam P. PP2A(Cdc55)'s role in reductional chromosome segregation during achiasmate meiosis in budding yeast is independent of its FEAR function. Sci Rep. 2016;6:30397 pubmed publisher
    PP2A(Cdc55) is a highly conserved serine-threonine protein phosphatase that is involved in diverse cellular processes...
  58. Baro B, Rodriguez Rodriguez J, Calabria I, Hernaez M, Gil C, Queralt E. Dual Regulation of the mitotic exit network (MEN) by PP2A-Cdc55 phosphatase. PLoS Genet. 2013;9:e1003966 pubmed publisher
    ..At anaphase onset, the protease separase and Zds1 promote the downregulation of PP2A(Cdc55) phosphatase, which facilitates Cdk1-dependent phosphorylation of Net1 and provides the first wave of Cdc14 ..
  59. Mui M, Kucharski M, Miron M, Hur W, Berghuis A, Blanchette P, et al. Identification of the adenovirus E4orf4 protein binding site on the B55? and Cdc55 regulatory subunits of PP2A: Implications for PP2A function, tumor cell killing and viral replication. PLoS Pathog. 2013;9:e1003742 pubmed publisher
    ..Binding of E4orf4 to the B/B55/Cdc55 regulatory subunit of protein phosphatase 2A (PP2A) is required, and such binding inhibits PP2A(B55) activity ..
  60. Kim Y, Francisco L, Chen G, Marcotte E, Chan C. Control of cellular morphogenesis by the Ip12/Bem2 GTPase-activating protein: possible role of protein phosphorylation. J Cell Biol. 1994;127:1381-94 pubmed
    ..b>CDC55 encodes the putative regulatory B subunit of protein phosphatase 2A, and mutations in BEM2 have previously been ..
  61. Rahal R, Amon A. The Polo-like kinase Cdc5 interacts with FEAR network components and Cdc14. Cell Cycle. 2008;7:3262-72 pubmed
    ..Finally, we present evidence that the Cdc5-Cdc14 association is direct, further supporting the central role of Cdc5 in Cdc14 localization. ..
  62. Nickels J, Broach J. A ceramide-activated protein phosphatase mediates ceramide-induced G1 arrest of Saccharomyces cerevisiae. Genes Dev. 1996;10:382-94 pubmed
    ..yeast cells contain a ceramide-activated protein phosphatase composed of regulatory subunits encoded by TPD3 and CDC55 and a catalytic subunit encoded by SIT4...