Yeast protein kinases and the RHO1 exchange factor TUS1 are novel components of the cell integrity pathway in yeast.

Abstract:

:The PKC1-associated mitogen-activated protein (MAP) kinase pathway of Saccharomyces cerevisiae regulates cell integrity by controlling the actin cytoskeleton and cell wall synthesis. Activation of PKC1 occurs via the GTPase RHO1 and the kinase pair PKH1 and PKH2. Here we report that YPK1 and YPK2, an essential pair of homologous kinases and proposed downstream effectors of PKH and sphingolipids, are also regulators of the PKC1-controlled MAP kinase cascade. ypk mutants display random distribution of the actin cytoskeleton and severely reduced activation of the MAP kinase MPK1. Upregulation of the RHO1 GTPase switch or the PKC1 effector MAP kinase pathway suppresses the growth and actin defects of ypk cells. ypk lethality is also suppressed by overexpression of an uncharacterized gene termed TUS1. TUS1 is a novel RHO1 exchange factor that contributes to cell wall integrity-mediated modulation of RHO1 activity. Thus, TUS1 and the YPKs add to the growing complexity of RHO1 and PKC1 regulation in the cell integrity signaling pathway. Furthermore, our findings suggest that the YPKs are a missing link between sphingolipid signaling and the cell integrity pathway.

journal_name

Mol Cell Biol

authors

Schmelzle T,Helliwell SB,Hall MN

doi

10.1128/mcb.22.5.1329-1339.2002

subject

Has Abstract

pub_date

2002-03-01 00:00:00

pages

1329-39

issue

5

eissn

0270-7306

issn

1098-5549

journal_volume

22

pub_type

杂志文章
  • AIRE recruits P-TEFb for transcriptional elongation of target genes in medullary thymic epithelial cells.

    abstract::AIRE is a transcriptional activator that directs the ectopic expression of many tissue-specific genes in medullary thymic epithelial cells, which plays an important role in the negative selection of autoreactive T cells. However, its mechanism of action remains poorly understood. In this study, we found that AIRE regu...

    journal_title:Molecular and cellular biology

    pub_type: 杂志文章

    doi:10.1128/MCB.01085-07

    authors: Oven I,Brdicková N,Kohoutek J,Vaupotic T,Narat M,Peterlin BM

    更新日期:2007-12-01 00:00:00

  • A box H/ACA small nucleolar RNA-like domain at the human telomerase RNA 3' end.

    abstract::Simple sequence repeat telomeric DNA is maintained by a specialized reverse transcriptase, telomerase. The integral RNA subunit of telomerase contains a template region that determines the sequence added to chromosome ends. Aside from providing the template, little is known about the role of the telomerase RNA. In add...

    journal_title:Molecular and cellular biology

    pub_type: 杂志文章

    doi:10.1128/mcb.19.1.567

    authors: Mitchell JR,Cheng J,Collins K

    更新日期:1999-01-01 00:00:00

  • Silencing of Wnt signaling and activation of multiple metabolic pathways in response to thyroid hormone-stimulated cell proliferation.

    abstract::To investigate the transcriptional program underlying thyroid hormone (T3)-induced cell proliferation, cDNA microarrays were used to survey the temporal expression profiles of 4,400 genes. Of 358 responsive genes identified, 88% had not previously been reported to be transcriptionally or functionally modulated by T3. ...

    journal_title:Molecular and cellular biology

    pub_type: 杂志文章

    doi:10.1128/mcb.21.19.6626-6639.2001

    authors: Miller LD,Park KS,Guo QM,Alkharouf NW,Malek RL,Lee NH,Liu ET,Cheng SY

    更新日期:2001-10-01 00:00:00

  • SRA5 encodes the low-Km cyclic AMP phosphodiesterase of Saccharomyces cerevisiae.

    abstract::sra5 mutations in Saccharomyces cerevisiae were previously shown to suppress the inefficient growth of ras2 strains on nonfermentable carbon sources and to result in deficient low-Km cyclic AMP (cAMP) phosphodiesterase activity. We have cloned SRA5 by complementation. It maps to the right arm of chromosome XV, tightly...

    journal_title:Molecular and cellular biology

    pub_type: 杂志文章

    doi:10.1128/mcb.8.1.505

    authors: Wilson RB,Tatchell K

    更新日期:1988-01-01 00:00:00

  • A human Ki-ras oncogene encodes two transforming p21 proteins.

    abstract::The human Ki-ras gene was previously reported to contain two alternative fourth exons which encode two distinct p21 proteins differing only at their carboxy termini. The present study shows that either p21 protein is able on its own to transform NIH 3T3 cells to a tumorigenic state. ...

    journal_title:Molecular and cellular biology

    pub_type: 杂志文章

    doi:10.1128/mcb.6.4.1326

    authors: McCoy MS,Weinberg RA

    更新日期:1986-04-01 00:00:00

  • Three sea urchin actin genes show different patterns of expression: muscle specific, embryo specific, and constitutive.

    abstract::The expression of three different actin genes in the sea urchin, Strongylocentrotus purpuratus, was monitored in embryos and adult tissues by using untranslated mRNA sequences as specific hybridization probes. Three distinct patterns of expression were found: muscle specific, embryo specific, and constitutive (i.e., p...

    journal_title:Molecular and cellular biology

    pub_type: 杂志文章

    doi:10.1128/mcb.4.5.840

    authors: Garcia R,Paz-Aliaga B,Ernst SG,Crain WR Jr

    更新日期:1984-05-01 00:00:00

  • Induced change in a non-mendelian determinant by transplantation of macronucleoplasm in Paramecium tetraurelia.

    abstract::Mutant strain d48 of Paramecium tetraurelia lacks the gene for antigen A in the macronucleus, whereas this gene is present in the micronucleus. Transfer of macronucleoplasm from the wild type to strain d48 caused d48 to revert to the wild type after autogamy. Transfer of cytoplasm was not as effective as transfer of m...

    journal_title:Molecular and cellular biology

    pub_type: 杂志文章

    doi:10.1128/mcb.6.10.3498

    authors: Harumoto T

    更新日期:1986-10-01 00:00:00

  • E2F3 loss has opposing effects on different pRB-deficient tumors, resulting in suppression of pituitary tumors but metastasis of medullary thyroid carcinomas.

    abstract::The E2F transcription factors are key downstream targets of the retinoblastoma protein (pRB) tumor suppressor. We have previously shown that E2F3 plays a critical role in mediating the mitogen-induced activation of E2F-responsive genes and contributes to both the inappropriate proliferation and the p53-dependent apopt...

    journal_title:Molecular and cellular biology

    pub_type: 杂志文章

    doi:10.1128/mcb.23.18.6542-6552.2003

    authors: Ziebold U,Lee EY,Bronson RT,Lees JA

    更新日期:2003-09-01 00:00:00

  • Cardiomyopathy in Irx4-deficient mice is preceded by abnormal ventricular gene expression.

    abstract::To define the role of Irx4, a member of the Iroquois family of homeobox transcription factors in mammalian heart development and function, we disrupted the murine Irx4 gene. Cardiac morphology in Irx4-deficient mice (designated Irx4(Delta ex2/Delta ex2)) was normal during embryogenesis and in early postnatal life. Adu...

    journal_title:Molecular and cellular biology

    pub_type: 杂志文章

    doi:10.1128/MCB.21.5.1730-1736.2001

    authors: Bruneau BG,Bao ZZ,Fatkin D,Xavier-Neto J,Georgakopoulos D,Maguire CT,Berul CI,Kass DA,Kuroski-de Bold ML,de Bold AJ,Conner DA,Rosenthal N,Cepko CL,Seidman CE,Seidman JG

    更新日期:2001-03-01 00:00:00

  • Nuclear envelope localization of an adenovirus tumor antigen maintains the integrity of cellular DNA.

    abstract::The adenovirus early-region 1B 19,000-molecular-weight tumor antigen is required for oncogenic transformation of cells by adenovirus. We have demonstrated that this tumor antigen is located in the nuclear envelope of infected and transformed cells and that a fraction of the protein within the nuclear envelope is assoc...

    journal_title:Molecular and cellular biology

    pub_type: 杂志文章

    doi:10.1128/mcb.4.12.2865

    authors: White E,Blose SH,Stillman BW

    更新日期:1984-12-01 00:00:00

  • Distinct structural domains of caveolin-1 independently regulate Ca2+ release-activated Ca2+ channels and Ca2+ microdomain-dependent gene expression.

    abstract::In eukaryotic cells, calcium entry across the cell surface activates nuclear gene expression, a process critically important for cell growth and differentiation, learning, and memory and immune cell functions. In immune cells, calcium entry occurs through store-operated Ca(2+) release-activated Ca(2+) (CRAC) channels,...

    journal_title:Molecular and cellular biology

    pub_type: 杂志文章

    doi:10.1128/MCB.01068-14

    authors: Yeh YC,Parekh AB

    更新日期:2015-04-01 00:00:00

  • Yap, a novel family of eight bZIP proteins in Saccharomyces cerevisiae with distinct biological functions.

    abstract::Saccharomyces cerevisiae contains eight members of a novel and fungus-specific family of bZIP proteins that is defined by four atypical residues on the DNA-binding surface. Two of these proteins, Yap1 and Yap2, are transcriptional activators involved in pleiotropic drug resistance. Although initially described as AP-1...

    journal_title:Molecular and cellular biology

    pub_type: 杂志文章

    doi:10.1128/mcb.17.12.6982

    authors: Fernandes L,Rodrigues-Pousada C,Struhl K

    更新日期:1997-12-01 00:00:00

  • Isolation of the Drosophila melanogaster dunce chromosomal region and recombinational mapping of dunce sequences with restriction site polymorphisms as genetic markers.

    abstract::Using the method of chromosomal walking, we have isolated a contiguous region of the Drosophila melanogaster X chromosome which corresponds to salivary gland chromosome bands 3C12 to 3D4. This five-band region contains approximately 100 kilobases of DNA, including those sequences comprising dunce, a gene which functio...

    journal_title:Molecular and cellular biology

    pub_type: 杂志文章

    doi:10.1128/mcb.4.2.358

    authors: Davis RL,Davidson N

    更新日期:1984-02-01 00:00:00

  • Ikaros and GATA-1 combinatorial effect is required for silencing of human gamma-globin genes.

    abstract::During development and erythropoiesis, globin gene expression is finely modulated through an important network of transcription factors and chromatin modifying activities. In this report we provide in vivo evidence that endogenous Ikaros is recruited to the human beta-globin locus and targets the histone deacetylase H...

    journal_title:Molecular and cellular biology

    pub_type: 杂志文章

    doi:10.1128/MCB.01523-08

    authors: Bottardi S,Ross J,Bourgoin V,Fotouhi-Ardakani N,Affar el B,Trudel M,Milot E

    更新日期:2009-03-01 00:00:00

  • Distinct activities of the alpha-catenin family, alpha-catulin and alpha-catenin, on beta-catenin-mediated signaling.

    abstract::Alpha-catenin, an integral part of cadherin-catenin adhesion complexes, is a major binding partner of beta-catenin, a key component of the Wnt pathway, which activates T-cell factor (TCF)/lymphoid enhancer factor (LEF) transcription and is often upregulated in cancers. Recently, we identified an alpha-catenin-related ...

    journal_title:Molecular and cellular biology

    pub_type: 杂志文章

    doi:10.1128/mcb.24.6.2410-2422.2004

    authors: Merdek KD,Nguyen NT,Toksoz D

    更新日期:2004-03-01 00:00:00

  • Overproduction of Rb protein after the G1/S boundary causes G2 arrest.

    abstract::The Rb protein is known to exert its activity at decision points in the G1 phase of the cell cycle. To investigate whether it may also play some role(s) at later points in the cell cycle, we used a system of rapid inducible gene amplification to conditionally overexpress Rb protein during G2 phase. A cell line express...

    journal_title:Molecular and cellular biology

    pub_type: 杂志文章

    doi:10.1128/mcb.13.11.6640

    authors: Karantza V,Maroo A,Fay D,Sedivy JM

    更新日期:1993-11-01 00:00:00

  • Las1L is a nucleolar protein required for cell proliferation and ribosome biogenesis.

    abstract::Ribosome biogenesis is a highly regulated process ensuring that cell growth (increase in biomass) is coordinated with cell proliferation. The formation of eukaryotic ribosomes is a multistep process initiated by the transcription and processing of rRNA in the nucleolus. Concomitant with this, several preribosomal part...

    journal_title:Molecular and cellular biology

    pub_type: 杂志文章

    doi:10.1128/MCB.00358-10

    authors: Castle CD,Cassimere EK,Lee J,Denicourt C

    更新日期:2010-09-01 00:00:00

  • Chromosomal proteins HMGN3a and HMGN3b regulate the expression of glycine transporter 1.

    abstract::HMGN proteins promote chromatin unfolding, enhance access to nucleosomes, and modulate transcription from chromatin templates. It is not known whether they act indiscriminately as general modulators of transcription or whether they regulate specific gene expression. Here, we investigated the role of HMGN3, a recently ...

    journal_title:Molecular and cellular biology

    pub_type: 杂志文章

    doi:10.1128/mcb.24.9.3747-3756.2004

    authors: West KL,Castellini MA,Duncan MK,Bustin M

    更新日期:2004-05-01 00:00:00

  • Early embryonic death in mice lacking the beta-catenin-binding protein Duplin.

    abstract::The Wnt signaling pathway plays a pivotal role in vertebrate early development and morphogenesis. Duplin (axis duplication inhibitor) interacts with beta-catenin and prevents its binding to Tcf, thereby inhibiting downstream Wnt signaling. Here we show that Duplin is expressed predominantly from early- to mid-stage mo...

    journal_title:Molecular and cellular biology

    pub_type: 杂志文章

    doi:10.1128/MCB.24.19.8386-8394.2004

    authors: Nishiyama M,Nakayama K,Tsunematsu R,Tsukiyama T,Kikuchi A,Nakayama KI

    更新日期:2004-10-01 00:00:00

  • Myogenic differentiation triggered by antisense acidic fibroblast growth factor RNA.

    abstract::Acidic fibroblast growth factor (FGF) and related family members regulate differentiation in organisms as diverse as Xenopus laevis and mammals. We utilized a well-characterized model of myogenic development to directly assess the importance of endogenously produced FGF in controlling differentiation. A role for endog...

    journal_title:Molecular and cellular biology

    pub_type: 杂志文章

    doi:10.1128/mcb.14.6.4244

    authors: Fox JC,Hsu AY,Swain JL

    更新日期:1994-06-01 00:00:00

  • Human Rvb1/Tip49 is required for the histone acetyltransferase activity of Tip60/NuA4 and for the downregulation of phosphorylation on H2AX after DNA damage.

    abstract::The role of chromatin-remodeling factors in transcription is well established, but the link between chromatin-remodeling complexes and DNA repair remains unexplored. Human Rvb1 and Rvb2 are highly conserved AAA(+) ATP binding proteins that are part of various chromatin-remodeling complexes, such as Ino80, SNF2-related...

    journal_title:Molecular and cellular biology

    pub_type: 杂志文章

    doi:10.1128/MCB.01983-07

    authors: Jha S,Shibata E,Dutta A

    更新日期:2008-04-01 00:00:00

  • Genetically essential and nonessential alpha-tubulin genes specify functionally interchangeable proteins.

    abstract::Microtubules in yeast are essential components of the mitotic and meiotic spindles and are essential for nuclear movement during cell division and mating. The relative importance in these processes of the two divergent alpha-tubulin genes of the budding yeast Saccharomyces cerevisiae, TUB1 and TUB3, was examined throu...

    journal_title:Molecular and cellular biology

    pub_type: 杂志文章

    doi:10.1128/mcb.6.11.3722

    authors: Schatz PJ,Solomon F,Botstein D

    更新日期:1986-11-01 00:00:00

  • A weak spliceosome-binding domain of Yju2 functions in the first step and bypasses Prp16 in the second step of splicing.

    abstract::Yju2 is an essential splicing factor required for the first catalytic step after the action of Prp2. We dissected the structure of Yju2 and found that the amino (Yju2-N) and carboxyl (Yju2-C) halves of the protein can be separated and reconstituted for Yju2 function both in vivo and in vitro. Yju2-N has a weak affinit...

    journal_title:Molecular and cellular biology

    pub_type: 杂志文章

    doi:10.1128/MCB.00035-13

    authors: Chiang TW,Cheng SC

    更新日期:2013-05-01 00:00:00

  • Trm112 is required for Bud23-mediated methylation of the 18S rRNA at position G1575.

    abstract::Posttranscriptional and posttranslational modification of macromolecules is known to fine-tune their functions. Trm112 is unique, acting as an activator of both tRNA and protein methyltransferases. Here we report that in Saccharomyces cerevisiae, Trm112 is required for efficient ribosome synthesis and progression thro...

    journal_title:Molecular and cellular biology

    pub_type: 杂志文章

    doi:10.1128/MCB.06623-11

    authors: Figaro S,Wacheul L,Schillewaert S,Graille M,Huvelle E,Mongeard R,Zorbas C,Lafontaine DL,Heurgué-Hamard V

    更新日期:2012-06-01 00:00:00

  • Molecular localization and developmental expression of the otu locus of Drosophila melanogaster.

    abstract::The female-sterile ovarian tumor gene, otu, is located in cytological region 7F1 on the Drosophila melanogaster chromosome map. We have mapped the gene at the molecular level by using four dysgenic alleles and two revertant derivatives of these alleles as well as an ethyl methanesulfonate-induced allele. The insertion...

    journal_title:Molecular and cellular biology

    pub_type: 杂志文章

    doi:10.1128/mcb.8.4.1481

    authors: Mulligan PK,Mohler JD,Kalfayan LJ

    更新日期:1988-04-01 00:00:00

  • p38alpha isoform Mxi2 binds to extracellular signal-regulated kinase 1 and 2 mitogen-activated protein kinase and regulates its nuclear activity by sustaining its phosphorylation levels.

    abstract::Mxi2 is a p38alpha splice isoform that is distinctively activated by mitogenic stimuli. Here we show that Mxi2 immunoprecipitates carry a kinase activity that is persistently activated by epidermal growth factor in a fashion regulated by Ras, Raf, and MEK. We demonstrate that this kinase activity can be attributed not...

    journal_title:Molecular and cellular biology

    pub_type: 杂志文章

    doi:10.1128/mcb.23.9.3079-3090.2003

    authors: Sanz-Moreno V,Casar B,Crespo P

    更新日期:2003-05-01 00:00:00

  • Both the SH2 and SH3 domains of human CRK protein are required for neuronal differentiation of PC12 cells.

    abstract::Human CRK protein is a homolog of the chicken v-crk oncogene product and consists mostly of src homology region 2 (SH2) and SH3, which are shared by many proteins, in particular those involved in signal transduction. SH2 has been shown to bind specifically to phosphotyrosine-containing peptides. We report here that bo...

    journal_title:Molecular and cellular biology

    pub_type: 杂志文章

    doi:10.1128/mcb.13.7.4409

    authors: Tanaka S,Hattori S,Kurata T,Nagashima K,Fukui Y,Nakamura S,Matsuda M

    更新日期:1993-07-01 00:00:00

  • Differential DNA binding by monomeric, homodimeric, and potentially heteromeric forms of the thyroid hormone receptor.

    abstract::Binding of the thyroid hormone receptor (TR) to thyroid hormone-responsive elements (TREs) is crucial for regulation of gene expression by thyroid hormone. The TR binds to each half-site of a palindromic TRE separately, as a monomer, or simultaneously, as a homodimer. In addition, the TR monomer interacts with a 42-kD...

    journal_title:Molecular and cellular biology

    pub_type: 杂志文章

    doi:10.1128/mcb.11.10.5005

    authors: Lazar MA,Berrodin TJ,Harding HP

    更新日期:1991-10-01 00:00:00

  • Cleavage of eukaryotic translation initiation factor 4G by exogenously added hybrid proteins containing poliovirus 2Apro in HeLa cells: effects on gene expression.

    abstract::Efficient cleavage of both forms of eukaryotic initiation factor 4G (eIF4G-1 and eIF4G-2) has been achieved in HeLa cells by incubation with hybrid proteins containing poliovirus 2Apro. Entry of these proteins into cells is promoted by adenovirus particles. Substantial levels of ongoing translation on preexisting cell...

    journal_title:Molecular and cellular biology

    pub_type: 杂志文章

    doi:10.1128/mcb.19.4.2445

    authors: Novoa I,Carrasco L

    更新日期:1999-04-01 00:00:00

  • Distinct Roles of Transcription Factors KLF4, Krox20, and Peroxisome Proliferator-Activated Receptor γ in Adipogenesis.

    abstract::Much of our knowledge on adipogenesis comes from cell culture models of preadipocyte differentiation. Adipogenesis is induced by treating confluent preadipocytes with the adipogenic cocktail, which activates transcription factors (TFs) glucocorticoid receptor (GR) and CREB within minutes and increases expression of TF...

    journal_title:Molecular and cellular biology

    pub_type: 杂志文章

    doi:10.1128/MCB.00554-16

    authors: Park YK,Wang L,Giampietro A,Lai B,Lee JE,Ge K

    更新日期:2017-01-04 00:00:00