Anchoring of protein kinase A-regulatory subunit IIalpha to subapically positioned centrosomes mediates apical bile canalicular lumen development in response to oncostatin M but not cAMP.

abstract：:Overexpression of the inhibitory Smad, Smad7, is used frequently to implicate the Smad pathway in cellular responses to transforming growth factor beta (TGF-beta) signaling; however, Smad7 regulates several other proteins, including Cdc42, p38MAPK, and beta-catenin. We report an alternative approach for more specifica...

journal_title：Molecular biology of the cell

authors： Zhao BM,Hoffmann FM

更新日期：2006-09-01 00:00:00

abstract：:Membrane fusion is generally controlled by Rabs, soluble N-ethylmaleimide-sensitive factor attachment protein receptors (SNAREs), and tethering complexes. Syntaxin 17 (STX17) was recently identified as the autophagosomal SNARE required for autophagosome-lysosome fusion in mammals and Drosophila. In this study, to bett...

journal_title：Molecular biology of the cell

authors： Jiang P,Nishimura T,Sakamaki Y,Itakura E,Hatta T,Natsume T,Mizushima N

更新日期：2014-04-01 00:00:00

abstract：:Methionine residues in proteins are susceptible to oxidation by reactive oxygen species, but can be repaired via reduction of the resulting methionine sulfoxides by methionine-S-sulfoxide reductase (MsrA) and methionine-R-sulfoxide reductase (MsrB). However, the identity of all methionine sulfoxide reductases involved...

journal_title：Molecular biology of the cell

authors： Kim HY,Gladyshev VN

更新日期：2004-03-01 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：:We identify a new mechanism for the beta(1)-adrenergic receptor (beta(1)AR)-mediated regulation of human ether-a-go-go-related gene (HERG) potassium channel (Kv11.1). We find that the previously reported modulatory interaction between Kv11.1 channels and 14-3-3epsilon proteins is competed by wild type beta(1)AR by mea...

journal_title：Molecular biology of the cell

authors： Tutor AS,Delpón E,Caballero R,Gómez R,Núñez L,Vaquero M,Tamargo J,Mayor F Jr,Penela P

更新日期：2006-11-01 00:00:00

abstract：:Cell surface hemichannels (HCs) composed of different connexin (Cx) types are present in diverse cells and their possible role on FGF-1-induced cellular responses remains unknown. Here, we show that FGF-1 transiently (4-14 h, maximal at 7 h) increases the membrane permeability through HCs in HeLa cells expressing Cx43...

journal_title：Molecular biology of the cell

authors： Schalper KA,Palacios-Prado N,Retamal MA,Shoji KF,Martínez AD,Sáez JC

更新日期：2008-08-01 00:00:00

abstract：:NuMA is an abundant long coiled-coil protein that plays a prominent role in spindle organization during mitosis. In interphase, NuMA is localized to the nucleus and hypothesized to control gene expression and chromatin organization. However, because of the prominent mitotic phenotype upon NuMA loss, its precise functi...

journal_title：Molecular biology of the cell

authors： Rajeevan A,Keshri R,Kapoor S,Kotak S

更新日期：2020-10-15 00:00:00

abstract：:Jak tyrosine kinases have a unique domain structure containing a kinase domain (JH1) adjacent to a catalytically inactive pseudokinase domain (JH2). JH2 is crucial for inhibition of basal Jak activity, but the mechanism of this regulation has remained elusive. We show that JH2 negatively regulated Jak2 in bacterial ce...

journal_title：Molecular biology of the cell

authors： Saharinen P,Vihinen M,Silvennoinen O

更新日期：2003-04-01 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：:A central question in the area of signal transduction is why pathways utilize common components. In the budding yeast Saccharomyces cerevisiae, the HOG and filamentous growth (FG) MAPK pathways require overlapping components but are thought to be induced by different stimuli and specify distinct outputs. To better und...

journal_title：Molecular biology of the cell

authors： Pitoniak A,Birkaya B,Dionne HM,Vadaie N,Cullen PJ

更新日期：2009-07-01 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：:Although some of the principles of N-ethylmaleimide-sensitive factor attachment protein receptor (SNARE) function are well understood, remarkably little detail is known about sec1/munc18 (SM) protein function and its relationship to SNAREs. Popular models of SM protein function hold that these proteins promote or main...

journal_title：Molecular biology of the cell

authors： Williams AL,Ehm S,Jacobson NC,Xu D,Hay JC

更新日期：2004-01-01 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：:Repellents evoke growth cone turning by eliciting asymmetric, localized loss of actin cytoskeleton together with changes in substratum attachment. We have demonstrated that semaphorin-3A (Sema3A)-induced growth cone detachment and collapse require eicosanoid-mediated activation of protein kinase C epsilon (PKC epsilon...

journal_title：Molecular biology of the cell

authors： Gatlin JC,Estrada-Bernal A,Sanford SD,Pfenninger KH

更新日期：2006-12-01 00:00:00

abstract：:The TOR kinases are conserved negative regulators of autophagy in response to nutrient conditions, but the signaling mechanisms are poorly understood. Here we describe a complex containing the protein kinase Atg1 and the phosphoprotein Atg13 that functions as a critical component of this regulation in Drosophila. We s...

journal_title：Molecular biology of the cell

authors： Chang YY,Neufeld TP

更新日期：2009-04-01 00:00:00

abstract：:Trends in increased tuberculosis infection and a fatality rate of approximately 23% have necessitated the search for alternative biomarkers using newly developed postgenomic approaches. Here we provide a systematic analysis of Mycobacterium tuberculosis (Mtb) by directly profiling its gene products. This analysis comb...

journal_title：Molecular biology of the cell

authors： Mawuenyega KG,Forst CV,Dobos KM,Belisle JT,Chen J,Bradbury EM,Bradbury AR,Chen X

更新日期：2005-01-01 00:00:00

abstract：:Significant increase in JNK, c-Jun, and Cdk5 activities are reported in Alzheimer's disease (AD). Inhibition of c-Jun prevents neuronal cell death in in vivo AD models, highlighting it as a major JNK effector. Both JNK and Cdk5 promote neurodegeneration upon deregulation; however, Cdk5 has not been mechanistically lin...

journal_title：Molecular biology of the cell

authors： Sun KH,Lee HG,Smith MA,Shah K

更新日期：2009-11-01 00:00:00

abstract：:Oncoprotein 18/stathmin (Op18) has been identified recently as a protein that destabilizes microtubules, but the mechanism of destabilization is currently controversial. Based on in vitro microtubule assembly assays, evidence has been presented supporting conflicting destabilization models of either tubulin sequestrat...

journal_title：Molecular biology of the cell

authors： Howell B,Larsson N,Gullberg M,Cassimeris L

更新日期：1999-01-01 00:00:00

abstract：:My group and I feel tremendously honored to be recognized with the 2016 Early Career Life Scientist Award from the American Society for Cell Biology. In this essay I share the scientific questions that my lab has been excitedly pursuing since starting in August 2009 and the leadership behaviors we have adopted that en...

journal_title：Molecular biology of the cell

authors： Greco V

更新日期：2016-11-01 00:00:00

abstract：:The assembly of four soluble N-ethylmaleimide-sensitive factor attachment protein receptor domains into a complex is essential for membrane fusion. In most cases, the four SNARE-domains are encoded by separate membrane-targeted proteins. However, in the exocytotic pathway, two SNARE-domains are present in one protein,...

journal_title：Molecular biology of the cell

authors： Nagy G,Milosevic I,Mohrmann R,Wiederhold K,Walter AM,Sørensen JB

更新日期：2008-09-01 00:00:00

abstract：:We have undertaken a biochemical analysis of the regulation of the G1/S-phase transition and commitment to the cell cycle in the fission yeast Schizosaccharomyces pombe. The execution of Start requires the activity of the Cdc2 protein kinase and the Sct1/Cdc10 transcription complex. Progression through G1 also require...

journal_title：Molecular biology of the cell

authors： Caligiuri M,Connolly T,Beach D

更新日期：1997-06-01 00:00:00

abstract：:Septins are conserved GTP-binding cytoskeletal proteins that polymerize into filaments by end-to-end joining of hetero-oligomeric complexes. In human cells, both hexamers and octamers exist, and crystallography studies predicted the order of the hexamers to be SEPT7-SEPT6-SEPT2-SEPT2-SEPT6-SEPT7, while octamers are th...

journal_title：Molecular biology of the cell

authors： Soroor F,Kim MS,Palander O,Balachandran Y,Collins RF,Benlekbir S,Rubinstein JL,Trimble WS

更新日期：2021-02-01 00:00:00

abstract：:The process of macropinocytosis is an essential aspect of normal cell function, contributing to both growth and motile processes of cells. p21-activated kinases (PAKs) are targets for activated Rac and Cdc42 guanosine 5'-triphosphatases and have been shown to regulate the actin-myosin cytoskeleton. In fibroblasts PAK1...

journal_title：Molecular biology of the cell

authors： Dharmawardhane S,Schürmann A,Sells MA,Chernoff J,Schmid SL,Bokoch GM

更新日期：2000-10-01 00:00:00

abstract：:Retroviral assembly is driven by Gag, and nascent viral particles escape cells by recruiting the machinery that forms intralumenal vesicles of multivesicular bodies. In this study, we show that the clathrin adaptor complex AP-1 is involved in retroviral release. The absence of AP-1mu obtained by genetic knock-out or b...

journal_title：Molecular biology of the cell

authors： Camus G,Segura-Morales C,Molle D,Lopez-Vergès S,Begon-Pescia C,Cazevieille C,Schu P,Bertrand E,Berlioz-Torrent C,Basyuk E

更新日期：2007-08-01 00:00:00

abstract：:The receptor-tyrosine kinase (RTK)/Ras/Raf pathway is an essential cascade for mediating growth factor signaling. It is abnormally overactive in almost all human cancers. The downstream targets of the pathway are members of the extracellular regulated kinases (Erk1/2) family, suggesting that this family is a mediator ...

journal_title：Molecular biology of the cell

authors： Smorodinsky-Atias K,Goshen-Lago T,Goldberg-Carp A,Melamed D,Shir A,Mooshayef N,Beenstock J,Karamansha Y,Darlyuk-Saadon I,Livnah O,Ahn NG,Admon A,Engelberg D

更新日期：2016-03-15 00:00:00

abstract：:Microtubules (MTs) are cytoskeletal polymers composed of repeating subunits of tubulin that are ubiquitously expressed in eukaryotic cells. They undergo a stochastic process of polymerization and depolymerization from their plus ends termed dynamic instability. MT dynamics is an ongoing process in all cell types and h...

journal_title：Molecular biology of the cell

authors： Dent EW

更新日期：2017-01-01 00:00:00

abstract：:We report here that Trypanosoma cruzi, the etiologic agent of Chagas disease, possesses two unique paralogues of the mitochondrial calcium uniporter complex TcMCU subunit that we named TcMCUc and TcMCUd. The predicted structure of the proteins indicates that, as predicted for the TcMCU and TcMCUb paralogues, they are ...

journal_title：Molecular biology of the cell

authors： Chiurillo MA,Lander N,Bertolini MS,Vercesi AE,Docampo R

更新日期：2019-07-01 00:00:00

abstract：:We used transgenic analysis in Drosophila to compare the ability of two structurally similar alpha-tubulin isoforms to support microtubule assembly in vivo. Our data revealed that even closely related alpha-tubulin isoforms have different functional capacities. Thus, in multicellular organisms, even small changes in t...

journal_title：Molecular biology of the cell

authors： Hutchens JA,Hoyle HD,Turner FR,Raff EC

更新日期：1997-03-01 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：:Protein quality control is an essential function of the endoplasmic reticulum. Misfolded proteins unable to acquire their native conformation are retained in the endoplasmic reticulum, retro-translocated back into the cytosol, and degraded via the ubiquitin-proteasome system. We show that efficient degradation of solu...

journal_title：Molecular biology of the cell

authors： Taxis C,Vogel F,Wolf DH

更新日期：2002-06-01 00:00:00