Reengineering ribosome export.

abstract：:Accurate chromosome alignment at metaphase facilitates the equal segregation of sister chromatids to each of the nascent daughter cells. Lack of proper metaphase alignment is an indicator of defective chromosome congression and aberrant kinetochore-microtubule attachments which in turn promotes chromosome missegregati...

journal_title：Molecular biology of the cell

authors： Braga LG,Prifti DK,Garand C,Saini PK,Elowe S

更新日期：2020-10-21 00:00:00

abstract：:GPR15 is an orphan G protein-coupled receptor (GPCR) that serves for an HIV coreceptor and was also recently found as a novel homing receptor for T-cells implicated in colitis. We show that GPR15 undergoes a constitutive endocytosis in the absence of ligand. The endocytosis was clathrin dependent and partially depende...

journal_title：Molecular biology of the cell

authors： Okamoto Y,Shikano S

更新日期：2017-08-15 00:00:00

abstract：:cAR1, a G protein-coupled receptor (GPCR) for cAMP, is required for the multicellular development of Dictyostelium. The activation of multiple pathways by cAR1 is transient because of poorly defined adaptation mechanisms. To investigate this, we used a genetic screen for impaired development to isolate four dominant-n...

journal_title：Molecular biology of the cell

authors： Zhang M,Goswami M,Hereld D

更新日期：2005-02-01 00:00:00

abstract：:The Rho family of GTP-binding proteins plays a critical role in a variety of cellular processes, including cytoskeletal reorganization and activation of kinases such as p38 and C-jun N-terminal kinase (JNK) MAPKs. We report here that dominant negative forms of Rac1 and Cdc42Hs inhibit the expression of the muscle-spec...

journal_title：Molecular biology of the cell

authors： Meriane M,Roux P,Primig M,Fort P,Gauthier-Rouvière C

更新日期：2000-08-01 00:00:00

abstract：:The fission yeast Mcs6-Mcs2-Pmh1 complex, homologous to metazoan Cdk7-cyclin H-Mat1, has dual functions in cell division and transcription: as a partially redundant cyclin-dependent kinase (CDK)-activating kinase (CAK) that phosphorylates the major cell cycle CDK, Cdc2, on Thr-167; and as the RNA polymerase (Pol) II c...

journal_title：Molecular biology of the cell

authors： Lee KM,Miklos I,Du H,Watt S,Szilagyi Z,Saiz JE,Madabhushi R,Penkett CJ,Sipiczki M,Bähler J,Fisher RP

更新日期：2005-06-01 00:00:00

abstract：:The Rab11 effector Rab11-family interacting protein 2 (Rab11-FIP2) regulates transcytosis through its interactions with Rab11a and myosin Vb. Previous studies implicated Rab11-FIP2 in the establishment of polarity in Madin-Darby canine kidney (MDCK) cells through phosphorylation of Ser-227 by MARK2. Here we examine th...

journal_title：Molecular biology of the cell

authors： Lapierre LA,Avant KM,Caldwell CM,Oztan A,Apodaca G,Knowles BC,Roland JT,Ducharme NA,Goldenring JR

更新日期：2012-06-01 00:00:00

abstract：:Previously published reports support the concept that, besides promoting homotypic intercellular adhesion, cadherins may transfer intracellular signals. However, the signaling pathways triggered by cadherin clustering and their biological significance are still poorly understood. We report herein that transfection of ...

journal_title：Molecular biology of the cell

authors： Lampugnani MG,Zanetti A,Breviario F,Balconi G,Orsenigo F,Corada M,Spagnuolo R,Betson M,Braga V,Dejana E

更新日期：2002-04-01 00:00:00

abstract：:Loss-of-function mutations in the nonconventional myosin Vb (Myo5b) result in microvillus inclusion disease (MVID) and massive secretory diarrhea that often begins at birth. Myo5b mutations disrupt the apical recycling endosome (ARE) and membrane traffic, resulting in reduced surface expression of apical membrane prot...

journal_title：Molecular biology of the cell

authors： Forteza R,Ahsan MK,Cartón-García F,Arango D,Ameen NA,Salas PJ

更新日期：2019-12-15 00:00:00

abstract：:In animal cells, positioning of the mitotic spindle is crucial for defining the plane of cytokinesis and the size ratio of daughter cells. We have characterized this phenomenon in a rat epithelial cell line using microscopy, micromanipulation, and microinjection. Unmanipulated cells position the mitotic spindle near t...

journal_title：Molecular biology of the cell

authors： O'Connell CB,Wang YL

更新日期：2000-05-01 00:00:00

abstract：:The Rab GTPase Ypt11 is a Myo2-binding protein implicated in mother-to-bud transport of the cortical endoplasmic reticulum (ER), late Golgi, and mitochondria during yeast division. However, its reported subcellular localization does not reflect all of these functions. Here we show that Ypt11 is normally a low-abundanc...

journal_title：Molecular biology of the cell

authors： Lewandowska A,Macfarlane J,Shaw JM

更新日期：2013-04-01 00:00:00

abstract：:The polysomal ribonuclease 1 (PMR1) mRNA endonuclease forms a selective complex with its translating substrate mRNAs where it is activated to initiate mRNA decay. Previous work showed tyrosine phosphorylation is required for PMR1 targeting to this polysome-bound complex, and it identified c-Src as the responsible kina...

journal_title：Molecular biology of the cell

authors： Peng Y,Liu X,Schoenberg DR

更新日期：2008-02-01 00:00:00

abstract：:In budding yeast, spindle polarity relies on a precise temporal program of cytoplasmic microtubule-cortex interactions throughout spindle assembly. Loss of Clb5-dependent kinase activity under conditions of attenuated Cdc28 function disrupts this program, resulting in diploid-specific lethality. Here we show that pola...

journal_title：Molecular biology of the cell

authors： Segal M,Bloom K,Reed SI

更新日期：2000-11-01 00:00:00

abstract：:The Wnt signaling pathway plays a major role in development, and upon deregulation it is implicated in neoplasia. The hallmark of the canonical Wnt signal is the protection of beta-catenin from ubiquitination and proteasomal degradation induced by glycogen synthase kinase (GSK)-3beta inhibition. The stabilized beta-ca...

journal_title：Molecular biology of the cell

authors： Bachar-Dahan L,Goltzmann J,Yaniv A,Gazit A

更新日期：2006-06-01 00:00:00

abstract：:Glycerol and other polyols are used as osmoprotectants by many organisms. Several yeasts and other fungi can take up glycerol by proton symport. To identify genes involved in active glycerol uptake in Saccharomyces cerevisiae we screened a deletion mutant collection comprising 321 genes encoding proteins with 6 or mor...

journal_title：Molecular biology of the cell

authors： Ferreira C,van Voorst F,Martins A,Neves L,Oliveira R,Kielland-Brandt MC,Lucas C,Brandt A

更新日期：2005-04-01 00:00:00

abstract：:Dysregulated hepatic cholesterol homeostasis with free cholesterol accumulation in the liver is relevant to the pathogenesis of nonalcoholic steatohepatitis, contributing to the chronicity of liver toxicity. Here we examined the effect of free cholesterol accumulation on the morphology and biochemical properties of li...

journal_title：Molecular biology of the cell

authors： Makino A,Hullin-Matsuda F,Murate M,Abe M,Tomishige N,Fukuda M,Yamashita S,Fujimoto T,Vidal H,Lagarde M,Delton I,Kobayashi T

更新日期：2016-11-01 00:00:00

abstract：:Rab GTPases are localized to various intracellular compartments and are known to play important regulatory roles in membrane trafficking. Here, we report the subcellular distribution and function of Rab14. By immunofluorescence and immunoelectron microscopy, both endogenous as well as overexpressed Rab14 were localize...

journal_title：Molecular biology of the cell

authors： Junutula JR,De Maziére AM,Peden AA,Ervin KE,Advani RJ,van Dijk SM,Klumperman J,Scheller RH

更新日期：2004-05-01 00:00:00

abstract：:The majority of mitochondrial phosphatidylethanolamine (PtdEtn), a phospholipid essential for aerobic growth of yeast cells, is synthesized by phosphatidylserine decarboxylase 1 (Psd1p) in the inner mitochondrial membrane (IMM). To identify components that become essential when the level of mitochondrial PtdEtn is dec...

journal_title：Molecular biology of the cell

authors： Birner R,Nebauer R,Schneiter R,Daum G

更新日期：2003-02-01 00:00:00

abstract：:DNA synthesis-coupled proteolysis of the prereplicative complex component Cdt1 by the CRL4(Cdt2) E3 ubiquitin ligase is thought to help prevent rereplication of the genome during S phase. To directly test whether CRL4(Cdt2)-triggered destruction of Cdt1 is required for normal cell cycle progression in vivo, we express...

journal_title：Molecular biology of the cell

authors： Lee HO,Zacharek SJ,Xiong Y,Duronio RJ

更新日期：2010-11-01 00:00:00

abstract：:The preemptive quality control (pQC) pathway protects cells from acute endoplasmic reticulum (ER) stress by attenuating translocation of nascent proteins despite their targeting to translocons at the ER membrane. Here, we investigate the hypothesis that the DnaJ protein p58(IPK) plays an essential role in this process...

journal_title：Molecular biology of the cell

authors： Rutkowski DT,Kang SW,Goodman AG,Garrison JL,Taunton J,Katze MG,Kaufman RJ,Hegde RS

更新日期：2007-09-01 00:00:00

abstract：:Clathrin-mediated endocytosis (CME) is the major mechanism for internalization in mammalian cells. CME initiates by recruitment of adaptors and clathrin to form clathrin-coated pits (CCPs). Nearly half of nascent CCPs abort, whereas others are stabilized by unknown mechanisms and undergo further maturation before pinc...

journal_title：Molecular biology of the cell

authors： Antonescu CN,Aguet F,Danuser G,Schmid SL

更新日期：2011-07-15 00:00:00

abstract：:The E3 ubiquitin ligase Rad18 chaperones DNA polymerase η (Polη) to sites of UV-induced DNA damage and monoubiquitinates proliferating cell nuclear antigen (PCNA), facilitating engagement of Polη with stalled replication forks and promoting translesion synthesis (TLS). It is unclear how Rad18 activities are coordinate...

journal_title：Molecular biology of the cell

authors： Barkley LR,Palle K,Durando M,Day TA,Gurkar A,Kakusho N,Li J,Masai H,Vaziri C

更新日期：2012-05-01 00:00:00

abstract：:Tetraploidization, or genome doubling, is a prominent event in tumorigenesis, primarily because cell division in polyploid cells is error-prone and produces aneuploid cells. This study investigates changes in gene expression evoked in acute and adapted tetraploid cells and their effect on cell-cycle progression. Acute...

journal_title：Molecular biology of the cell

authors： Potapova TA,Seidel CW,Box AC,Rancati G,Li R

更新日期：2016-10-15 00:00:00

abstract：:GRIM-19 was found to copurify with complex I of mitochondrial respiratory chain and subsequently was demonstrated to be involved in complex I assembly and activity. To further understand its function in complex I, we dissected its functional domains by generating a number of deletion, truncation, and point mutants. Th...

journal_title：Molecular biology of the cell

authors： Lu H,Cao X

更新日期：2008-05-01 00:00:00

abstract：:Pif1 family helicases, which are found in nearly all eukaryotes, have important roles in both nuclear and mitochondrial genome maintenance. Recently, the increasing availability of genome sequences has revealed that Pif1 helicases are also widely found in diverse prokaryotes, but it is currently unknown what physiolog...

journal_title：Molecular biology of the cell

authors： Bochman ML,Judge CP,Zakian VA

更新日期：2011-06-15 00:00:00

abstract：:MAL, a compact hydrophobic, four-transmembrane-domain apical protein that copurifies with detergent-resistant membranes is obligatory for the machinery that sorts glycophosphatidylinositol (GPI)-anchored proteins and others to the apical membrane in epithelia. The mechanism of MAL function in lipid-raft-mediated apica...

journal_title：Molecular biology of the cell

authors： Magal LG,Yaffe Y,Shepshelovich J,Aranda JF,de Marco Mdel C,Gaus K,Alonso MA,Hirschberg K

更新日期：2009-08-01 00:00:00

abstract：:The Saccharomyces cerevisiae genes TOR1 and TOR2 were originally identified by mutations that confer resistance to the immunosuppressant rapamycin. TOR2 was previously shown to encode an essential 282-kDa phosphatidylinositol kinase (PI kinase) homologue. The TOR1 gene product is also a large (281 kDa) PI kinase homol...

journal_title：Molecular biology of the cell

authors： Helliwell SB,Wagner P,Kunz J,Deuter-Reinhard M,Henriquez R,Hall MN

更新日期：1994-01-01 00:00:00

abstract：:Tumor cells use actin-rich protrusions called invadopodia to degrade extracellular matrix (ECM) and invade tissues; related structures, termed podosomes, are sites of dynamic ECM interaction. We show here that supervillin (SV), a peripheral membrane protein that binds F-actin and myosin II, reorganizes the actin cytos...

journal_title：Molecular biology of the cell

authors： Crowley JL,Smith TC,Fang Z,Takizawa N,Luna EJ

更新日期：2009-02-01 00:00:00

abstract：:In vertebrate cells, the nucleoporin Nup358/RanBP2 is a major component of the filaments that emanate from the nuclear pore complex into the cytoplasm. Nup358 forms a complex with SUMOylated RanGAP1, the GTPase activating protein for Ran. RanGAP1 plays a pivotal role in the establishment of a RanGTP gradient across th...

journal_title：Molecular biology of the cell

authors： Hutten S,Flotho A,Melchior F,Kehlenbach RH

更新日期：2008-05-01 00:00:00

abstract：:Cadherin-based cell-cell contacts are prominent sites for phosphotyrosine signaling, being enriched in tyrosine-phosphorylated proteins and tyrosine kinases and phosphatases. The functional interplay between cadherin adhesion and tyrosine kinase signaling, however, is complex and incompletely understood. In this repor...

journal_title：Molecular biology of the cell

authors： McLachlan RW,Kraemer A,Helwani FM,Kovacs EM,Yap AS

更新日期：2007-08-01 00:00:00

abstract：:In complex with FKBP12, the immunosuppressant rapamycin binds to and inhibits the yeast TOR1 and TOR2 proteins and the mammalian homologue mTOR/FRAP/RAFT1. The TOR proteins promote cell cycle progression in yeast and human cells by regulating translation and polarization of the actin cytoskeleton. A C-terminal domain ...

journal_title：Molecular biology of the cell

authors： Alarcon CM,Heitman J,Cardenas ME

更新日期：1999-08-01 00:00:00