Gene Symbol: PDS1
Description: securin
Alias: securin
Species: Saccharomyces cerevisiae S288c

Top Publications

  1. Sanchez Y, Bachant J, Wang H, Hu F, Liu D, Tetzlaff M, et al. Control of the DNA damage checkpoint by chk1 and rad53 protein kinases through distinct mechanisms. Science. 1999;286:1166-71 pubmed
    ..damage checkpoint in Saccharomyces cerevisiae but acts through a distinct mechanism maintaining the abundance of Pds1, an anaphase inhibitor...
  2. Hornig N, Knowles P, McDonald N, Uhlmann F. The dual mechanism of separase regulation by securin. Curr Biol. 2002;12:973-82 pubmed
    ..Separase is regulated by its binding partner securin in two ways: securin is required to support separase activity in anaphase; and, at the same time, securin must be ..
  3. Hsu W, Erickson S, Tsai H, Andrews C, Vas A, Clarke D. S-phase cyclin-dependent kinases promote sister chromatid cohesion in budding yeast. Mol Cell Biol. 2011;31:2470-83 pubmed publisher
    ..In eukaryotes, Pds1/securin is the only known inhibitor that can prevent loss of cohesion...
  4. Hilioti Z, Chung Y, Mochizuki Y, Hardy C, COHEN FIX O. The anaphase inhibitor Pds1 binds to the APC/C-associated protein Cdc20 in a destruction box-dependent manner. Curr Biol. 2001;11:1347-52 pubmed
    ..One such APC/C substrate, the budding yeast anaphase inhibitor Pds1 (securin), is degraded prior to anaphase initiation in a destruction box and APC/C(Cdc20)-dependent manner [3, 7]...
  5. Tinker Kulberg R, Morgan D. Pds1 and Esp1 control both anaphase and mitotic exit in normal cells and after DNA damage. Genes Dev. 1999;13:1936-49 pubmed
    ..proteolysis of key regulatory proteins: anaphase requires the destruction of the anaphase inhibitor Pds1, whereas mitotic exit requires the destruction of mitotic cyclins and the inactivation of Cdk1...
  6. Holt L, Krutchinsky A, Morgan D. Positive feedback sharpens the anaphase switch. Nature. 2008;454:353-7 pubmed publisher
    ..Anaphase is initiated when a ubiquitin ligase, the anaphase-promoting complex (APC), triggers the destruction of securin, thereby allowing separase, a protease, to disrupt sister-chromatid cohesion...
  7. Rodrigo Brenni M, Morgan D. Sequential E2s drive polyubiquitin chain assembly on APC targets. Cell. 2007;130:127-39 pubmed
    ..E2-25K, a human homolog of Ubc1, also promotes APC-dependent chain extension on preattached ubiquitins. We propose that sequential E2 proteins catalyze K48-linked polyubiquitination and thus proteasomal destruction of APC targets. ..
  8. Enquist Newman M, Sullivan M, Morgan D. Modulation of the mitotic regulatory network by APC-dependent destruction of the Cdh1 inhibitor Acm1. Mol Cell. 2008;30:437-46 pubmed publisher
    ..We also speculate that the ability of APC(Cdh1) to target its own inhibitor enhances the bistability of the late mitotic regulatory system. ..
  9. Shirayama M, Zachariae W, Ciosk R, Nasmyth K. The Polo-like kinase Cdc5p and the WD-repeat protein Cdc20p/fizzy are regulators and substrates of the anaphase promoting complex in Saccharomyces cerevisiae. EMBO J. 1998;17:1336-49 pubmed
    ..Accumulation of Cdc20p contributes to activation of Pds1p proteolysis in metaphase, whereas accumulation of Cdc5p facilitates the activation of Clb2p proteolysis. ..

More Information


  1. Ciosk R, Zachariae W, Michaelis C, Shevchenko A, Mann M, Nasmyth K. An ESP1/PDS1 complex regulates loss of sister chromatid cohesion at the metaphase to anaphase transition in yeast. Cell. 1998;93:1067-76 pubmed
    ..We propose that the APC promotes sister separation not by destroying cohesins but instead by liberating the "sister-separating" Esp1 protein from its inhibitor Pds1p. ..
  2. Agarwal R, COHEN FIX O. Phosphorylation of the mitotic regulator Pds1/securin by Cdc28 is required for efficient nuclear localization of Esp1/separase. Genes Dev. 2002;16:1371-82 pubmed
    ..This process is mediated by a conserved protease called separase. Separase is associated with its inhibitor, securin, until the time of anaphase initiation, when securin is degraded in an anaphase-promoting complex/cyclosome (APC/..
  3. Ross K, COHEN FIX O. The role of Cdh1p in maintaining genomic stability in budding yeast. Genetics. 2003;165:489-503 pubmed
    ..CDH1 showed genetic interactions with MAD2 and PDS1, genes encoding components of the mitotic spindle assembly checkpoint that acts at metaphase to prevent premature ..
  4. Chiroli E, Rancati G, Catusi I, Lucchini G, Piatti S. Cdc14 inhibition by the spindle assembly checkpoint prevents unscheduled centrosome separation in budding yeast. Mol Biol Cell. 2009;20:2626-37 pubmed publisher
    ..is in turn required for sister chromatid separation and mitotic exit through ubiquitin-mediated proteolysis of securin, thus relieving inhibition of separase that unties sister chromatids...
  5. Passmore L, McCormack E, Au S, Paul A, Willison K, Harper J, et al. Doc1 mediates the activity of the anaphase-promoting complex by contributing to substrate recognition. EMBO J. 2003;22:786-96 pubmed
    ..These results imply that Doc1p/Apc10 may play a role to regulate the binding of specific substrates, similar to that of the coactivators. ..
  6. Shirayama M, Toth A, Galova M, Nasmyth K. APC(Cdc20) promotes exit from mitosis by destroying the anaphase inhibitor Pds1 and cyclin Clb5. Nature. 1999;402:203-7 pubmed
    ..APC/C) is essential for separation of sister chromatids, requiring degradation of the anaphase inhibitor Pds1, and for exit from mitosis, requiring inactivation of cyclin B Cdk1 kinases...
  7. Severin F, Hyman A, Piatti S. Correct spindle elongation at the metaphase/anaphase transition is an APC-dependent event in budding yeast. J Cell Biol. 2001;155:711-8 pubmed
    ..Spindle integrity during elongation is dependent on proteolysis of the securin Pds1 but not on the activity of the separase Esp1...
  8. 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
    ..Separase activation requires the destruction of its inhibitor, securin, which occurs only upon the correct attachment of chromosomes to the spindle...
  9. Foe I, Foster S, Cheung S, DeLuca S, Morgan D, Toczyski D. Ubiquitination of Cdc20 by the APC occurs through an intramolecular mechanism. Curr Biol. 2011;21:1870-7 pubmed publisher
    ..This suggests that distinct mechanisms are able to target Cdc20 for ubiquitination at different points during the cell cycle. ..
  10. Schwab M, Neutzner M, Mocker D, Seufert W. Yeast Hct1 recognizes the mitotic cyclin Clb2 and other substrates of the ubiquitin ligase APC. EMBO J. 2001;20:5165-75 pubmed
    ..ubiquitin ligase termed the anaphase promoting complex (APC) targets critical regulatory proteins such as securin and mitotic cyclins, and thereby triggers chromosome separation and exit from mitosis...
  11. Jensen S, Segal M, Clarke D, Reed S. A novel role of the budding yeast separin Esp1 in anaphase spindle elongation: evidence that proper spindle association of Esp1 is regulated by Pds1. J Cell Biol. 2001;152:27-40 pubmed
    ..the metaphase-anaphase transition is initiated by the anaphase-promoting complex-dependent degradation of Pds1, whereby Esp1 is activated to promote sister chromatid separation...
  12. Ko N, Nishihama R, Tully G, Ostapenko D, Solomon M, Morgan D, et al. Identification of yeast IQGAP (Iqg1p) as an anaphase-promoting-complex substrate and its role in actomyosin-ring-independent cytokinesis. Mol Biol Cell. 2007;18:5139-53 pubmed
    ..Together, the data suggest that compromise of APC/C function allows the accumulation of Iqg1p, which then promotes actomyosin-ring-independent cytokinesis at least in part by activation of Cyk3p. ..
  13. Kramer K, Fesquet D, Johnson A, Johnston L. Budding yeast RSI1/APC2, a novel gene necessary for initiation of anaphase, encodes an APC subunit. EMBO J. 1998;17:498-506 pubmed
    ..Indeed, the anaphase block in rsi1/apc2 temperature-sensitive mutants is overcome by removal of PDS1, consistent with Rsi1p/Apc2p being part of the APC...
  14. Lim H, Goh P, Surana U. Cdc20 is essential for the cyclosome-mediated proteolysis of both Pds1 and Clb2 during M phase in budding yeast. Curr Biol. 1998;8:231-4 pubmed
    ..transition from metaphase to anaphase requires the proteolytic destruction of anaphase inhibitors such as Pds1 [1-3]...
  15. Schott E, Hoyt M. Dominant alleles of Saccharomyces cerevisiae CDC20 reveal its role in promoting anaphase. Genetics. 1998;148:599-610 pubmed
    ..Cdc20p may promote the APC-dependent proteolytic degradation of Pds1p and other factors that act to inhibit cell cycle progression through mitosis. ..
  16. Fasullo M, Dong Z, Sun M, Zeng L. Saccharomyces cerevisiae RAD53 (CHK2) but not CHK1 is required for double-strand break-initiated SCE and DNA damage-associated SCE after exposure to X rays and chemical agents. DNA Repair (Amst). 2005;4:1240-51 pubmed
    ..and is involved in pathways for double-strand break repair (DSB) repair that are different than those controlled by PDS1. We measured DNA damage-associated SCE in strains containing two tandem fragments of his3, his3-Delta5' and his3-..
  17. Hatano Y, Naoki K, Suzuki A, Ushimaru T. Positive feedback promotes mitotic exit via the APC/C-Cdh1-separase-Cdc14 axis in budding yeast. Cell Signal. 2016;28:1545-54 pubmed publisher
    The mitotic inhibitor securin is degraded via the ubiquitin ligase anaphase-promoting complex/cyclosome (APC/C)-Cdc20 after anaphase onset. This triggers activation of the mitotic protease separase and thereby sister chromatid separation...
  18. Myung K, Kolodner R. Suppression of genome instability by redundant S-phase checkpoint pathways in Saccharomyces cerevisiae. Proc Natl Acad Sci U S A. 2002;99:4500-7 pubmed
    ..b>PDS1 and the RAD50-MRE11-XRS2 complex were found to be important members of all the S-phase checkpoints in suppressing ..
  19. Karumbati A, Wilson T. Abrogation of the Chk1-Pds1 checkpoint leads to tolerance of persistent single-strand breaks in Saccharomyces cerevisiae. Genetics. 2005;169:1833-44 pubmed
    ..Mutants affecting the Chk1-Pds1 metaphase-anaphase checkpoint only suppressed tpp1 apn1 rad1 slow growth...
  20. Murillo Pineda M, Cabello Lobato M, Clemente Ruiz M, Monje Casas F, Prado F. Defective histone supply causes condensin-dependent chromatin alterations, SAC activation and chromosome decatenation impairment. Nucleic Acids Res. 2014;42:12469-82 pubmed publisher
    ..Therefore, our results reveal the importance of a precise interplay between histone supply and condensin/Top2 for pericentric chromatin structure, precatenanes resolution and centromere biorientation. ..
  21. Zhu Y, Xiao W. Two alternative cell cycle checkpoint pathways differentially control DNA damage-dependent induction of MAG1 and DDI1 expression in yeast. Mol Genet Genomics. 2001;266:436-44 pubmed
    ..Interestingly, simultaneous inactivation of RAD53 or DUN1 with PDS1, a newly identified checkpoint gene, resulted in severe down-regulation of DDI1 expression, suggesting that DDI1 is ..
  22. Agarwal R, Tang Z, Yu H, COHEN FIX O. Two distinct pathways for inhibiting pds1 ubiquitination in response to DNA damage. J Biol Chem. 2003;278:45027-33 pubmed
    ..The downstream target of Rad53 is unknown. The target of Chk1 is Pds1, an inhibitor of anaphase initiation whose degradation is a prerequisite for mitotic progression...
  23. Fasullo M, Sun M. The Saccharomyces cerevisiae checkpoint genes RAD9, CHK1 and PDS1 are required for elevated homologous recombination in a mec1 (ATR) hypomorphic mutant. Cell Cycle. 2008;7:2418-26 pubmed
    ..The mec1-21 hyper-recombination was partially reduced in rad9, pds1 and chk1 mutants, and abolished in rad52 mutants, suggesting the hyper-recombination results from RAD52-dependent ..
  24. Pakchuen S, Ishibashi M, Takakusagi E, Shirahige K, Sutani T. Physical Association of Saccharomyces cerevisiae Polo-like Kinase Cdc5 with Chromosomal Cohesin Facilitates DNA Damage Response. J Biol Chem. 2016;291:17228-46 pubmed publisher
    ..This irreversible step in the cell cycle is promoted by degradation of the separase inhibitor, securin, and polo-like kinase (Plk) 1-dependent phosphorylation of the Scc1 subunit...
  25. DeMase D, Zeng L, Cera C, Fasullo M. The Saccharomyces cerevisiae PDS1 and RAD9 checkpoint genes control different DNA double-strand break repair pathways. DNA Repair (Amst). 2005;4:59-69 pubmed
    In response to DNA damage, the Saccharomyces cerevisiae securin Pds1 blocks anaphase promotion by inhibiting ESP1-dependent degradation of cohesins...
  26. Kaizu K, Moriya H, Kitano H. Fragilities caused by dosage imbalance in regulation of the budding yeast cell cycle. PLoS Genet. 2010;6:e1000919 pubmed publisher
    ..The gene products of both CDC14 and ESP1 are regulated by 1ratio1 binding with their inhibitors (Net1 and Pds1), and a mathematical model predicts the extreme fragility of the cell cycle upon overexpression of CDC14 and ESP1 ..
  27. Clarke D, Segal M, Jensen S, Reed S. Mec1p regulates Pds1p levels in S phase: complex coordination of DNA replication and mitosis. Nat Cell Biol. 2001;3:619-27 pubmed
    Genetic evidence suggests that the securin Pds1p is the target of a late-S-phase checkpoint control...
  28. Schuyler S, Murray A. An in vitro assay for Cdc20-dependent mitotic anaphase-promoting complex activity from budding yeast. Methods Mol Biol. 2009;545:271-85 pubmed publisher
    ..Here we outline a quantitative in vitro mitotic APC(Cdc20) assay that makes use of a highly active form of the APC that is purified from budding yeast cells arrested in mitosis. ..
  29. Chien C, Chen R. Cdc48 chaperone and adaptor Ubx4 distribute the proteasome in the nucleus for anaphase proteolysis. J Biol Chem. 2013;288:37180-91 pubmed publisher
    ..Our data propose that Cdc48-Ubx4 acts on the proteasome and uses the chaperone activity to promote its nuclear distribution, thereby optimizing the proteasome level for efficient degradation of mitotic regulators...
  30. Liang F, Richmond D, Wang Y. Coordination of chromatid separation and spindle elongation by antagonistic activities of mitotic and S-phase CDKs. PLoS Genet. 2013;9:e1003319 pubmed publisher
    ..we found that hyperactive mitotic CDK induces uncoupled spindle elongation and sister-chromatid separation in securin mutants (pds1?), and we speculate that asynchronous chromosome segregation in pds1? cells contributes to this ..
  31. Clarke D, Mondesert G, Segal M, Bertolaet B, Jensen S, Wolff M, et al. Dosage suppressors of pds1 implicate ubiquitin-associated domains in checkpoint control. Mol Cell Biol. 2001;21:1997-2007 pubmed
    In budding yeast, anaphase initiation is controlled by ubiquitin-dependent degradation of Pds1p. Analysis of pds1 mutants implicated Pds1p in the DNA damage, spindle assembly, and S-phase checkpoints...
  32. Goh P, Surana U. Cdc4, a protein required for the onset of S phase, serves an essential function during G(2)/M transition in Saccharomyces cerevisiae. Mol Cell Biol. 1999;19:5512-22 pubmed
    ..for G(1)/S transition, while Cdc20 mediates anaphase-promoting complex-dependent degradation of anaphase inhibitor Pds1, a process necessary for the onset of chromosome segregation...
  33. Schaefer J, Morgan D. Protein-linked ubiquitin chain structure restricts activity of deubiquitinating enzymes. J Biol Chem. 2011;286:45186-96 pubmed publisher
    ..We propose that the resistance to many DUBs of long, substrate-attached Lys(48)-linked chains helps ensure that proteins are maintained free from ubiquitin until a threshold of ubiquitin ligase activity enables degradation...
  34. Palou G, Palou R, Zeng F, Vashisht A, Wohlschlegel J, Quintana D. Three Different Pathways Prevent Chromosome Segregation in the Presence of DNA Damage or Replication Stress in Budding Yeast. PLoS Genet. 2015;11:e1005468 pubmed publisher
    ..In addition, our results indicate that Swe1 is an effector of the checkpoint central kinase Mec1. When checkpoint control on M-CDK and on Pds1/securin stabilization are abrogated, cells undergo aberrant chromosome segregation.
  35. Cooper K, Mallory M, Guacci V, Lowe K, Strich R. Pds1p is required for meiotic recombination and prophase I progression in Saccharomyces cerevisiae. Genetics. 2009;181:65-79 pubmed publisher
    ..Destruction of the securin Pds1p liberates the Esp1p separase, which ultimately targets the mitotic cohesin Mcd1p/Scc1p for destruction...
  36. Foster S, Morgan D. The APC/C subunit Mnd2/Apc15 promotes Cdc20 autoubiquitination and spindle assembly checkpoint inactivation. Mol Cell. 2012;47:921-32 pubmed publisher
    ..Specific inhibition of SAC-dependent ubiquitination, by deletion of Mnd2, allowed establishment of a SAC arrest but delayed release from the arrest, suggesting that Cdc20 ubiquitination is also required for SAC inactivation. ..
  37. Koepp D, Kile A, Swaminathan S, Rodriguez Rivera V. The F-box protein Dia2 regulates DNA replication. Mol Biol Cell. 2006;17:1540-8 pubmed
    ..Interestingly, prolonging G1-phase in dia2 cells prevents the accumulation of DNA damage in S-phase. We propose that Dia2 is an origin-binding protein that plays a role in regulating DNA replication. ..
  38. Heo S, Tatebayashi K, Ikeda H. The budding yeast cohesin gene SCC1/MCD1/RHC21 genetically interacts with PKA, CDK and APC. Curr Genet. 1999;36:329-38 pubmed
    ..The functional relationships between SCC1/MCD1/RHC21 and PKA, CDK or APC are discussed. ..
  39. Chen Y, Caldwell J, Pereira E, Baker R, Sanchez Y. ATRMec1 phosphorylation-independent activation of Chk1 in vivo. J Biol Chem. 2009;284:182-90 pubmed publisher
    ..Our findings show that a single amino acid substitution in the C terminus, which could lead to an allosteric change in Chk1, allows it to bypass the requirement of the conserved ATR(Mec1) phosphorylation sites for checkpoint function. ..
  40. Luo S, Tong L. Molecular mechanism for the regulation of yeast separase by securin. Nature. 2017;542:255-259 pubmed publisher
    ..The protease activity of separase is strictly regulated by the inhibitor securin, which forms a tight complex with separase and may also stabilize this enzyme...
  41. Oelschlaegel T, Schwickart M, Matos J, Bogdanova A, Camasses A, Havlis J, et al. The yeast APC/C subunit Mnd2 prevents premature sister chromatid separation triggered by the meiosis-specific APC/C-Ama1. Cell. 2005;120:773-88 pubmed
    ..In cells lacking Mnd2 the APC/C-Ama1 enzyme triggers degradation of Pds1, which causes premature sister chromatid separation due to unrestrained separase activity...
  42. Gabriely G, Kama R, Gelin Licht R, Gerst J. Different domains of the UBL-UBA ubiquitin receptor, Ddi1/Vsm1, are involved in its multiple cellular roles. Mol Biol Cell. 2008;19:3625-37 pubmed publisher
    ..RVP domain is required for protein homodimerization, whereas the UBL and UBA domains are required for rescue of the pds1-128 checkpoint mutant and enrichment of GFP-Ddi1 in the nucleus...
  43. He J, Chao W, Zhang Z, Yang J, Cronin N, Barford D. Insights into degron recognition by APC/C coactivators from the structure of an Acm1-Cdh1 complex. Mol Cell. 2013;50:649-60 pubmed publisher
    ..We provide a structural rationalization for D box and KEN box recognition by coactivators and demonstrate that many noncanonical APC/C degrons bind APC/C coactivators at the D box coreceptor...
  44. Kosugi S, Hasebe M, Tomita M, Yanagawa H. Systematic identification of cell cycle-dependent yeast nucleocytoplasmic shuttling proteins by prediction of composite motifs. Proc Natl Acad Sci U S A. 2009;106:10171-6 pubmed publisher
    ..using cNLS Mapper identified all previously reported and 5 previously uncharacterized yeast proteins (Yen1, Psy4, Pds1, Msa1, and Dna2) displaying CDK1- and cell cycle-regulated nuclear transport...
  45. Hwang J, Smith S, Ceschia A, Torres Rosell J, Aragon L, Myung K. Smc5-Smc6 complex suppresses gross chromosomal rearrangements mediated by break-induced replications. DNA Repair (Amst). 2008;7:1426-36 pubmed publisher
  46. D Amours D, Stegmeier F, Amon A. Cdc14 and condensin control the dissolution of cohesin-independent chromosome linkages at repeated DNA. Cell. 2004;117:455-69 pubmed
    ..This dual role of the FEAR network in initiating mitotic exit and promoting chromosome segregation ensures that exit from mitosis is coupled to the completion of chromosome segregation. ..
  47. Gardner R, Putnam C, Weinert T. RAD53, DUN1 and PDS1 define two parallel G2/M checkpoint pathways in budding yeast. EMBO J. 1999;18:3173-85 pubmed
    ..RAD9 and RAD24), those transducing a signal (MEC1, RAD53 and DUN1) or those participating more directly in arrest (PDS1). Here, we define important features of the pathways subserved by those genes...
  48. Wang H, Liu D, Wang Y, Qin J, Elledge S. Pds1 phosphorylation in response to DNA damage is essential for its DNA damage checkpoint function. Genes Dev. 2001;15:1361-72 pubmed
    In Saccharomyces cerevisiae, Pds1 is an anaphase inhibitor and plays an essential role in DNA damage and spindle checkpoint pathways...
  49. Shimizu Y, Nagai M, Yeasmin A, Koike N, Talukdar M, Ushimaru T. Elucidation of novel budding yeast separase mutants. Biosci Biotechnol Biochem. 2016;80:473-8 pubmed publisher
    ..Overexpression of securin alleviated the growth defect in some esp1-ts mutants, whereas it rather exacerbated it in others...
  50. Sullivan M, Holt L, Morgan D. Cyclin-specific control of ribosomal DNA segregation. Mol Cell Biol. 2008;28:5328-36 pubmed publisher
    ..Separase activation results from the destruction of its inhibitor, securin, which is triggered by a ubiquitin ligase called the anaphase-promoting complex (APC)...
  51. Chai C, Teh E, Yeong F. Unrestrained spindle elongation during recovery from spindle checkpoint activation in cdc15-2 cells results in mis-segregation of chromosomes. Mol Biol Cell. 2010;21:2384-98 pubmed publisher
    ..Our data indicate that a slower rate of transition through the cell division cycle can result in an inadequate level of Pds1p accumulation that can compromise recovery from spindle assembly checkpoint activation. ..
  52. Passmore L, Booth C, Venien Bryan C, Ludtke S, Fioretto C, Johnson L, et al. Structural analysis of the anaphase-promoting complex reveals multiple active sites and insights into polyubiquitylation. Mol Cell. 2005;20:855-66 pubmed
    ..Our data suggest that multimerisation and/or the presence of multiple active sites facilitates the APC/C's ability to elongate polyubiquitin chains. ..
  53. 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. ..
  54. Ferguson J, Chao W, Lee E, Friedman K. The anaphase promoting complex contributes to the degradation of the S. cerevisiae telomerase recruitment subunit Est1p. PLoS ONE. 2013;8:e55055 pubmed publisher
    ..Together, these studies shed light on the regulation of yeast telomerase assembly and demonstrate a new connection between telomere maintenance and cell cycle regulation pathways. ..
  55. Thornton B, Ng T, Matyskiela M, Carroll C, Morgan D, Toczyski D. An architectural map of the anaphase-promoting complex. Genes Dev. 2006;20:449-60 pubmed
    ..We have also found that the IR domain of Cdc20 is dispensable for viability, suggesting that Cdc20 can activate the APC through another domain. We have provided an updated model for the subunit architecture of the APC. ..
  56. Sun M, Fasullo M. Activation of the budding yeast securin Pds1 but not Rad53 correlates with double-strand break-associated G2/M cell cycle arrest in a mec1 hypomorphic mutant. Cell Cycle. 2007;6:1896-902 pubmed
    ..Chk1 phosphorylates Pds1 (securin), which prevents Pds1 degradation...
  57. 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
    ..through the activation of checkpoint pathways that inhibit anaphase entry by stabilizing the anaphase inhibitor Pds1. Mutation of CDC55, which encodes a B regulatory subunit of protein phosphatase 2A (PP2A), results in precocious ..
  58. Makhnevych T, Wong P, Pogoutse O, Vizeacoumar F, Greenblatt J, Emili A, et al. Hsp110 is required for spindle length control. J Cell Biol. 2012;198:623-36 pubmed publisher
    ..These data suggest a model whereby the Hsp70-Hsp110 chaperone complex antagonizes Cin8 plus-end motility and prevents premature spindle elongation in S phase. ..