Endoplasmic reticulum stress regulation of the Kar2p/BiP chaperone alleviates proteotoxicity via dual degradation pathways.

abstract：:Endomitosis is a special type of mitosis in which only cytokinesis-the final step of the cell division cycle-is defective, resulting in polyploid cells. Although endomitosis is biologically important, its regulatory aspects remain elusive. Psychosine, a lysogalactosylceramide, prevents proper cytokinesis when suppleme...

journal_title：Molecular biology of the cell

authors： Watanabe H,Okahara K,Naito-Matsui Y,Abe M,Go S,Inokuchi J,Okazaki T,Kobayashi T,Kozutsumi Y,Oka S,Takematsu H

更新日期：2016-07-01 00:00:00

abstract：:We studied the physiological response to limitation by diverse nutrients in batch and steady-state (chemostat) cultures of S. cerevisiae. We found that the global pattern of transcription in steady-state cultures in limiting phosphate or sulfate is essentially identical to that of batch cultures growing in the same me...

journal_title：Molecular biology of the cell

authors： Saldanha AJ,Brauer MJ,Botstein D

更新日期：2004-09-01 00:00:00

abstract：:Regulator of G protein signaling (RGS) proteins inhibit G protein signaling by activating Galpha GTPase activity, but the mechanisms that regulate RGS activity are not well understood. The mammalian R7 binding protein (R7BP) can interact with all members of the R7 family of RGS proteins, and palmitoylation of R7BP can...

journal_title：Molecular biology of the cell

authors： Porter MY,Koelle MR

更新日期：2010-01-15 00:00:00

abstract：:The histone variant H2AX is rapidly phosphorylated at the sites of DNA double-strand breaks (DSBs). This phosphorylated H2AX (gamma-H2AX) is involved in the retention of repair and signaling factor complexes at sites of DNA damage. The dependency of this phosphorylation on the various PI3K-related protein kinases (in ...

journal_title：Molecular biology of the cell

authors： Friesner JD,Liu B,Culligan K,Britt AB

更新日期：2005-05-01 00:00:00

abstract：:Investigation of Caenorhabditis elegans act-5 gene function revealed that intestinal microvillus formation requires a specific actin isoform. ACT-5 is the most diverged of the five C. elegans actins, sharing only 93% identity with the other four. Green fluorescent protein reporter and immunofluorescence analysis indic...

journal_title：Molecular biology of the cell

authors： MacQueen AJ,Baggett JJ,Perumov N,Bauer RA,Januszewski T,Schriefer L,Waddle JA

更新日期：2005-07-01 00:00:00

abstract：:Dog thyroid epithelial cells in primary culture constitute a physiologically relevant model of positive control of DNA synthesis initiation and G0-S prereplicative phase progression by cAMP as a second messenger for thyrotropin (thyroid-stimulating hormone [TSH]). As previously shown in this system, the cAMP-dependent...

journal_title：Molecular biology of the cell

authors： Depoortere F,Pirson I,Bartek J,Dumont JE,Roger PP

更新日期：2000-03-01 00:00:00

abstract：:The inositol 1,4,5-trisphosphate receptor (IP3R) is an intracellular calcium channel involved in coupling cell membrane receptors to calcium signal transduction pathways within cells including endocrine cells. Several isoforms (I, II, and III) of IP3Rs have been identified, which are encoded by separate genes, and are...

journal_title：Molecular biology of the cell

authors： Nucifora FC Jr,Sharp AH,Milgram SL,Ross CA

更新日期：1996-06-01 00:00:00

abstract：:Recently, we described the constitutive activation of Mek1 by mutation of its two serine phosphorylation sites. We have now characterized the biochemical properties of these Mek1 mutants and performed microinjection experiments to investigate the effect of an activated Mek on oocyte maturation. Single acidic substitut...

journal_title：Molecular biology of the cell

authors： Huang W,Kessler DS,Erikson RL

更新日期：1995-03-01 00:00:00

abstract：:CLA4, encoding a protein kinase of the PAK type, and CDC11, encoding a septin, were isolated in a screen for synthetic lethality with CHS3, which encodes the chitin synthase III catalytic moiety. Although Ste20p shares some essential function with Cla4p, it did not show synthetic lethality with Chs3p. cla4 and cdc11 m...

journal_title：Molecular biology of the cell

authors： Schmidt M,Varma A,Drgon T,Bowers B,Cabib E

更新日期：2003-05-01 00:00:00

abstract：:Glycoprotein gp130, found on the plasma membrane of Dictyostelium discoideum amoebae, was postulated previously to play a role in phagocytosis. The gene for gp130 was cloned and when translated, yielded a 768 amino acid preproprotein of 85.3 kDa. It had nearly 40% similarity to the 138 kDa family of glycoproteins impl...

journal_title：Molecular biology of the cell

authors： Chia CP,Gomathinayagam S,Schmaltz RJ,Smoyer LK

更新日期：2005-06-01 00:00:00

abstract：:We have isolated mutants in the fission yeast Schizosaccharomyces pombe that are defective in protein glycosylation. A collection of osmotically sensitive mutants was prepared and screened for glycosylation defects using lectin staining as an assay. Mutants singly defective in four glycoprotein synthesis genes (gps1-4...

journal_title：Molecular biology of the cell

authors： Huang KM,Snider MD

更新日期：1995-05-01 00:00:00

abstract：:Microtubules are long, slender polymers of αβ-tubulin found in all eukaryotic cells. Tubulins associate longitudinally to form protofilaments, and adjacent protofilaments associate laterally to form the microtubule. In the textbook view, microtubules are 1) composed of 13 protofilaments, 2) arranged in a radial array ...

journal_title：Molecular biology of the cell

authors： Chaaban S,Brouhard GJ

更新日期：2017-11-01 00:00:00

abstract：:Nuclear pore complexes consist of several subcomplexes. The NUP107 complex is important for nucleocytoplasmic transport, nuclear envelope assembly, and kinetochore function. However, the underlying molecular mechanisms and the roles of individual complex members remain elusive. We report the first description of a gen...

journal_title：Molecular biology of the cell

authors： Ródenas E,González-Aguilera C,Ayuso C,Askjaer P

更新日期：2012-03-01 00:00:00

abstract：:During oogenesis, two successive meiotic cell divisions occur without functional centrosomes because of the inactivation and subsequent elimination of maternal centrosomes during the diplotene stage of meiosis I. Despite being a conserved phenomenon in most metazoans, the means by which this centrosome behavior is con...

journal_title：Molecular biology of the cell

authors： Matsuura R,Ashikawa T,Nozaki Y,Kitagawa D

更新日期：2016-03-01 00:00:00

abstract：:In the present study we have identified a new metalloprotease encoded by the nuclear ATP23 gene of Saccharomyces cerevisiae that is essential for expression of mitochondrial ATPase (F(1)-F(O) complex). Mutations in ATP23 cause the accumulation of the precursor form of subunit 6 and prevent assembly of F(O). Atp23p is ...

journal_title：Molecular biology of the cell

authors： Zeng X,Neupert W,Tzagoloff A

更新日期：2007-02-01 00:00:00

abstract：:One of the original hypotheses of organismal longevity posits that aging is the natural result of entropy on the cells, tissues, and organs of the animal--a slow, inexorable slide into nonfunctionality caused by stochastic degradation of its parts. We now have evidence that aging is instead at least in part geneticall...

journal_title：Molecular biology of the cell

authors： DiLoreto R,Murphy CT

更新日期：2015-12-15 00:00:00

abstract：:The Sec61 translocon mediates the translocation of proteins across the endoplasmic reticulum membrane and the lateral integration of transmembrane segments into the lipid bilayer. The structure of the idle translocon is closed by a lumenal plug domain and a hydrophobic constriction ring. To test the function of the ap...

journal_title：Molecular biology of the cell

authors： Junne T,Kocik L,Spiess M

更新日期：2010-05-15 00:00:00

abstract：:The 260-kDa heterodimeric Gal/GalNAc-specific Lectin (Gal-lectin) of Entamoeba histolytica dissociates under reducing conditions into a heavy (hgl, 170 kDa) and a light subunit (lgl, 35 kDa). We have previously shown that inhibition of expression of the 35-kDa subunit by antisense RNA causes a decrease in virulence. T...

journal_title：Molecular biology of the cell

authors： Katz U,Ankri S,Stolarsky T,Nuchamowitz Y,Mirelman D

更新日期：2002-12-01 00:00:00

abstract：:Brd2 is a member of the bromodomain extra terminal (BET) protein family, which consists of four chromatin-interacting proteins that regulate gene expression. Each BET protein contains two N-terminal bromodomains, which recognize acetylated histones, and the C-terminal protein-protein interaction domain. Using a genome...

journal_title：Molecular biology of the cell

authors： Hnilicová J,Hozeifi S,Stejskalová E,Dušková E,Poser I,Humpolíčková J,Hof M,Staněk D

更新日期：2013-11-01 00:00:00

abstract：:Metazoan cells rapidly exchange signals at tight cell-cell interfaces, including synapses and gap junctions. Advances in imaging recently exposed a third mode of intercellular cross-talk mediated by thin, actin-containing membrane extensions broadly known as "membrane" or "tunneling" nanotubes. An explosion of researc...

journal_title：Molecular biology of the cell

authors： Sherer NM

更新日期：2013-04-01 00:00:00

abstract：:Oncostatin M and cAMP signaling stimulate apical surface-directed membrane trafficking and apical lumen development in hepatocytes, both in a protein kinase A (PKA)-dependent manner. Here, we show that oncostatin M, but not cAMP, promotes the A-kinase anchoring protein (AKAP)-dependent anchoring of the PKA regulatory ...

journal_title：Molecular biology of the cell

authors： Wojtal KA,Hoekstra D,van Ijzendoorn SC

更新日期：2007-07-01 00:00:00

abstract：:B-type cyclins are rapidly degraded at the transition between metaphase and anaphase and their ubiquitin-mediated proteolysis is required for cells to exit mitosis. We used a novel enrichment to isolate new budding mutants that arrest the cell cycle in mitosis. Most of these mutants lie in the CDC16, CDC23, and CDC27 ...

journal_title：Molecular biology of the cell

authors： Hwang LH,Murray AW

更新日期：1997-10-01 00:00:00

abstract：:NSF and p97 are related AAA proteins implicated in membrane trafficking and organelle biogenesis. p97 is also involved in pathways that lead to ubiquitin-dependent proteolysis, including ER-associated degradation (ERAD). In this study, we have used dominant interfering ATP-hydrolysis deficient mutants (NSF(E329Q) and ...

journal_title：Molecular biology of the cell

authors： Dalal S,Rosser MF,Cyr DM,Hanson PI

更新日期：2004-02-01 00:00:00

abstract：:Select lipid-anchored proteins such as glycosylphosphatidylinositol (GPI)-anchored proteins and nonreceptor tyrosine kinases may preferentially partition into sphingomyelin-rich and cholesterol-rich plasmalemmal microdomains, thereby acquiring resistance to detergent extraction. Two such domains, caveolae and lipid ra...

journal_title：Molecular biology of the cell

authors： Oh P,Schnitzer JE

更新日期：2001-03-01 00:00:00

abstract：:Cell emergence onto damaged or organized fibrous extracellular matrix (ECM) is a crucial precursor to collective cell migration in wound closure and cancer metastasis, respectively. However, there is a fundamental gap in our quantitative understanding of the role of local ECM size and arrangement in cell emergence-bas...

journal_title：Molecular biology of the cell

authors： Sharma P,Ng C,Jana A,Padhi A,Szymanski P,Lee JSH,Behkam B,Nain AS

更新日期：2017-09-15 00:00:00

abstract：:Although p38 activity is reported to be required as cells enter mitosis for proper spindle assembly and checkpoint function, its role during the division process remains controversial in lieu of direct data. We therefore conducted live cell studies to determine the effect on mitosis of inhibiting or depleting p38. We ...

journal_title：Molecular biology of the cell

authors： Lee K,Kenny AE,Rieder CL

更新日期：2010-07-01 00:00:00

abstract：:Cdc42-associated tyrosine kinase 1 (ACK1) is a specific down-stream effector of Cdc42, a Rho family small G-protein. Previous studies have shown that ACK1 interacts with clathrin heavy chain and is involved in clathrin-coated vesicle endocytosis. Here we report that ACK1 interacted with epidermal growth factor recepto...

journal_title：Molecular biology of the cell

authors： Shen F,Lin Q,Gu Y,Childress C,Yang W

更新日期：2007-03-01 00:00:00

abstract：:Rab8 is a GTPase involved in membrane trafficking. In photoreceptor cells, rab8 is proposed to participate in the late stages of delivery of rhodopsin-containing post-Golgi membranes to the plasma membrane near the base of the connecting cilium. To test the function of rab8 in vivo, we generated transgenic Xenopus lae...

journal_title：Molecular biology of the cell

authors： Moritz OL,Tam BM,Hurd LL,Peränen J,Deretic D,Papermaster DS

更新日期：2001-08-01 00:00:00

abstract：:Wnt signaling plays key roles in embryonic development and adult stem cell homeostasis and is altered in human cancer. Signaling is turned on and off by regulating stability of the effector β-catenin (β-cat). The multiprotein destruction complex binds and phosphorylates β-cat and transfers it to the SCF-TrCP E3-ubiqui...

journal_title：Molecular biology of the cell

authors： Schaefer KN,Pronobis MI,Williams CE,Zhang S,Bauer L,Goldfarb D,Yan F,Major MB,Peifer M

更新日期：2020-05-01 00:00:00

abstract：:During their migration to the periphery, cranial neural crest cells (NCCs) are repulsed by an ErbB4-dependent cue(s) in the mesenchyme adjoining rhombomeres (r) 3 and 5, which are segmented hindbrain neuromeres. ErbB4 has many ligands, but which ligand functions in the above system has not yet been clearly determined....

journal_title：Molecular biology of the cell

authors： Hoshino H,Uchida T,Otsuki T,Kawamoto S,Okubo K,Takeichi M,Chisaka O

更新日期：2007-04-01 00:00:00