A p90(rsk) mutant constitutively interacting with MAP kinase uncouples MAP kinase from p34(cdc2)/cyclin B activation in Xenopus oocytes.

abstract：:RIO proteins form a conserved family of atypical protein kinases. Humans possess three distinct RIO kinases-hRio1, hRio2, and hRio3, of which only hRio2 has been characterized with respect to its role in ribosomal biogenesis. Here we show that both hRio1 and hRio3, like hRio2, are associated with precursors of 40S rib...

journal_title：Molecular biology of the cell

authors： Widmann B,Wandrey F,Badertscher L,Wyler E,Pfannstiel J,Zemp I,Kutay U

更新日期：2012-01-01 00:00:00

abstract：:The subcellular distribution of kinases and other signaling proteins is regulated in response to cellular cues; however, the extent of this regulation has not been investigated for any gene set in any organism. Here, we present a systematic analysis of protein kinases in the budding yeast, screening for differential l...

journal_title：Molecular biology of the cell

authors： Bharucha N,Ma J,Dobry CJ,Lawson SK,Yang Z,Kumar A

更新日期：2008-07-01 00:00:00

abstract：:The oxygen sensitive alpha-subunit of the hypoxia-inducible factor-1 (HIF-1) is a major trigger of the cellular response to hypoxia. Although the posttranslational regulation of HIF-1alpha by hypoxia is well known, its transcriptional regulation by hypoxia is still under debate. We, therefore, investigated the regulat...

journal_title：Molecular biology of the cell

authors： Belaiba RS,Bonello S,Zähringer C,Schmidt S,Hess J,Kietzmann T,Görlach A

更新日期：2007-12-01 00:00:00

abstract：:Motor neuron (MN) diseases are progressive disorders resulting from degeneration of neuromuscular junctions (NMJs), which form the connection between MNs and muscle fibers. NMJ-in-a-dish models have been developed to examine human MN-associated dysfunction with disease; however such coculture models have randomly orie...

journal_title：Molecular biology of the cell

authors： Happe CL,Tenerelli KP,Gromova AK,Kolb F,Engler AJ

更新日期：2017-07-07 00:00:00

abstract：:Microtubules (MTs) have been proposed to act mechanically as compressive struts that resist both actomyosin contractile forces and their own polymerization forces to mechanically stabilize cell shape. To identify the origin of MT bending, we directly observed MT bending and F-actin transport dynamics in the periphery ...

journal_title：Molecular biology of the cell

authors： Bicek AD,Tüzel E,Demtchouk A,Uppalapati M,Hancock WO,Kroll DM,Odde DJ

更新日期：2009-06-01 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：:Anchorage dependence of cell growth, which is mediated by multiple integrin-regulated signaling pathways, is a key defense against cancer metastasis. Detachment of cells from the extracellular matrix triggers caveolin-1-dependent internalization of lipid raft components, which mediates suppression of Rho GTPases, Erk,...

journal_title：Molecular biology of the cell

authors： Norambuena A,Schwartz MA

更新日期：2011-09-01 00:00:00

abstract：:The resistance of Candida albicans to many stresses is dependent on the stress-activated protein kinase (SAPK) Hog1. Hence we have explored the role of Hog1 in the regulation of transcriptional responses to stress. DNA microarrays were used to characterize the global transcriptional responses of HOG1 and hog1 cells to...

journal_title：Molecular biology of the cell

authors： Enjalbert B,Smith DA,Cornell MJ,Alam I,Nicholls S,Brown AJ,Quinn J

更新日期：2006-02-01 00:00:00

abstract：:We recently identified transmembrane protein shrew-1 and showed that it is able to target to adherens junctions in polarized epithelial cells. This suggested shrew-1 possesses specific basolateral sorting motifs, which we analyzed by mutational analysis. Systematic mutation of amino acids in putative sorting signals i...

journal_title：Molecular biology of the cell

authors： Jakob V,Schreiner A,Tikkanen R,Starzinski-Powitz A

更新日期：2006-08-01 00:00:00

abstract：:Polarized assembly of actin filaments forms the basis of actin-based motility and is regulated both spatially and temporally. Cells use a variety of mechanisms by which intrinsically slower processes are accelerated, and faster ones decelerated, to match rates observed in vivo. Here we discuss how kinetic studies of i...

journal_title：Molecular biology of the cell

authors： Shekhar S,Carlier MF

更新日期：2016-01-01 00:00:00

abstract：:Gpi8p and Gaa1p are essential components of the GPI transamidase that adds glycosylphosphatidylinositols (GPIs) to newly synthesized proteins. After solubilization in 1.5% digitonin and separation by blue native PAGE, Gpi8p is found in 430-650-kDa protein complexes. These complexes can be affinity purified and are sho...

journal_title：Molecular biology of the cell

authors： Fraering P,Imhof I,Meyer U,Strub JM,van Dorsselaer A,Vionnet C,Conzelmann A

更新日期：2001-10-01 00:00:00

abstract：:Platelet secretion is critical to hemostasis. Release of granular cargo is mediated by soluble NSF attachment protein receptors (SNAREs), but despite consensus on t-SNAREs usage, it is unclear which Vesicle Associated Membrane Protein (VAMPs: synaptobrevin/VAMP-2, cellubrevin/VAMP-3, TI-VAMP/VAMP-7, and endobrevin/VAM...

journal_title：Molecular biology of the cell

authors： Ren Q,Barber HK,Crawford GL,Karim ZA,Zhao C,Choi W,Wang CC,Hong W,Whiteheart SW

更新日期：2007-01-01 00:00:00

abstract：:14-3-3 proteins via binding serine/threonine-phosphorylated proteins regulate diverse intracellular processes in all eukaryotic organisms. Here, we examine the role of 14-3-3 self-dimerization in target binding, and in the susceptibility of 14-3-3 to undergo phosphorylation. Using a phospho-specific antibody developed...

journal_title：Molecular biology of the cell

authors： Shen YH,Godlewski J,Bronisz A,Zhu J,Comb MJ,Avruch J,Tzivion G

更新日期：2003-11-01 00:00:00

abstract：:Supplying the appropriate amount of correctly folded α/β-tubulin heterodimers is critical for microtubule dynamics. Formation of assembly-competent heterodimers is remarkably elaborate at the molecular level, in which the α- and β-tubulins are separately processed in a chaperone-dependent manner. This sequential step ...

journal_title：Molecular biology of the cell

authors： Mori R,Toda T

更新日期：2013-06-01 00:00:00

abstract：:The gamma-tubulin ring complex (gammaTuRC), consisting of multiple protein subunits, can nucleate microtubule assembly. Although many subunits of the gammaTuRC have been identified, a complete set remains to be defined in any organism. In addition, how the subunits interact with each other to assemble into gammaTuRC r...

journal_title：Molecular biology of the cell

authors： Gunawardane RN,Martin OC,Zheng Y

更新日期：2003-03-01 00:00:00

abstract：:Kinesin-8 motor proteins destabilize microtubules. Their absence during cell division is associated with disorganized mitotic chromosome movements and chromosome loss. Despite recent work studying effects of kinesin-8s on microtubule dynamics, it remains unclear whether the kinesin-8 mitotic phenotypes are consequence...

journal_title：Molecular biology of the cell

authors： Gergely ZR,Crapo A,Hough LE,McIntosh JR,Betterton MD

更新日期：2016-11-07 00:00:00

abstract：:When proliferating fission yeast cells are exposed to nitrogen starvation, they initiate conjugation and differentiate into ascospores. Cell cycle arrest in the G1-phase is one of the prerequisites for cell differentiation, because conjugation occurs only in the pre-Start G1-phase. The role of ste9(+) in the cell cycl...

journal_title：Molecular biology of the cell

authors： Kitamura K,Maekawa H,Shimoda C

更新日期：1998-05-01 00:00:00

abstract：:Phospholipase Ds (PLDs) are regulated enzymes that generate phosphatidic acid (PA), a putative second messenger implicated in the regulation of vesicular trafficking and cytoskeletal reorganization. Mast cells, when stimulated with antigen, show a dramatic alteration in their cytoskeleton and also release their secret...

journal_title：Molecular biology of the cell

authors： O'Luanaigh N,Pardo R,Fensome A,Allen-Baume V,Jones D,Holt MR,Cockcroft S

更新日期：2002-10-01 00:00:00

abstract：:Nucleosome positioning is important for the structural integrity of chromosomes. During metaphase the mitotic spindle exerts physical force on pericentromeric chromatin. The cell must adjust the pericentromeric chromatin to accommodate the changing tension resulting from microtubule dynamics to maintain a stable metap...

journal_title：Molecular biology of the cell

authors： Verdaasdonk JS,Gardner R,Stephens AD,Yeh E,Bloom K

更新日期：2012-07-01 00:00:00

abstract：:Maturation-promoting factor, consisting of cdc2 protein kinase and a regulatory B-type cyclin, is a universal regulator of meiosis and mitosis in eukaryotes. In Xenopus, there are two subtypes of B-type cyclins, designated B1 and B2, both of which are phosphorylated. In this study, we have investigated the biological ...

journal_title：Molecular biology of the cell

authors： Li J,Meyer AN,Donoghue DJ

更新日期：1995-09-01 00:00:00

abstract：:Chediak-Higashi syndrome is a genetic disorder caused by mutations in a gene encoding a protein named LYST in humans ("lysosomal trafficking regulator") or Beige in mice. A prominent feature of this disease is the accumulation of enlarged lysosome-related granules in a variety of cells. The genome of Dictyostelium dis...

journal_title：Molecular biology of the cell

authors： Harris E,Wang N,Wu Wl WL,Weatherford A,De Lozanne A,Cardelli J

更新日期：2002-02-01 00:00:00

abstract：:In eukaryotic cells, nutrient starvation induces the bulk degradation of cellular materials; this process is called autophagy. In the yeast Saccharomyces cerevisiae, most of the ATG (autophagy) genes are involved in not only the process of degradative autophagy, but also a biosynthetic process, the cytoplasm to vacuol...

journal_title：Molecular biology of the cell

authors： Kabeya Y,Kamada Y,Baba M,Takikawa H,Sasaki M,Ohsumi Y

更新日期：2005-05-01 00:00:00

abstract：:E-cadherin plays an essential role in cell polarity and cell-cell adhesion; however, the pathway for delivery of E-cadherin to the basolateral membrane of epithelial cells has not been fully characterized. We first traced the post-Golgi, exocytic transport of GFP-tagged E-cadherin (Ecad-GFP) in unpolarized cells. In l...

journal_title：Molecular biology of the cell

authors： Lock JG,Stow JL

更新日期：2005-04-01 00:00:00

abstract：:Various human diseases are associated with mitochondrial DNA (mtDNA) mutations, but heteroplasmy—the coexistence of mutant and wild-type mtDNA—complicates their study. We previously isolated a temperature-lethal mtDNA mutation in Drosophila, mt:CoI(T300I), which affects the cytochrome c oxidase subunit I (CoI) locus. ...

journal_title：Molecular biology of the cell

authors： Chen Z,Qi Y,French S,Zhang G,Covian Garcia R,Balaban R,Xu H

更新日期：2015-02-15 00:00:00

abstract：:Munc18-1 binds to syntaxin-1A via two distinct sites referred to as the "closed" conformation and N terminus binding. The latter has been shown to stimulate soluble N-ethylmaleimide-sensitive factor attachment protein receptor-mediated exocytosis, whereas the former is believed to be inhibitory or dispensable. To prec...

journal_title：Molecular biology of the cell

authors： Han L,Jiang T,Han GA,Malintan NT,Xie L,Wang L,Tse FW,Gaisano HY,Collins BM,Meunier FA,Sugita S

更新日期：2009-12-01 00:00:00

abstract：:An inducible fluorescent system based on GFP is presented that allows for the uncoupling of dendritic mRNA transport from subsequent protein synthesis at the single cell level. The iron-responsive element (IRE) derived from ferritin mRNA in the 5'-UTR of the GFP reporter mRNA renders translation of its mRNA dependent ...

journal_title：Molecular biology of the cell

authors： Macchi P,Hemraj I,Goetze B,Grunewald B,Mallardo M,Kiebler MA

更新日期：2003-04-01 00:00:00

abstract：:Binding of echovirus 1 (EV1, a nonenveloped RNA virus) to the alpha2beta1 integrin on the cell surface is followed by endocytic internalization of the virus together with the receptor. Here, video-enhanced live microscopy revealed the rapid uptake of fluorescently labeled EV1 into mobile, intracellular structures, pos...

journal_title：Molecular biology of the cell

authors： Pietiäinen V,Marjomäki V,Upla P,Pelkmans L,Helenius A,Hyypiä T

更新日期：2004-11-01 00:00:00

abstract：:Whereas lysosome-related organelles (LRO) of specialized cells display both exocytic and endocytic features, lysosomes in nonspecialized cells can also acquire the property to fuse with the plasma membrane upon an acute rise in cytosolic calcium. Here, we characterize this unconventional secretory pathway in fibroblas...

journal_title：Molecular biology of the cell

authors： Laulagnier K,Schieber NL,Maritzen T,Haucke V,Parton RG,Gruenberg J

更新日期：2011-06-15 00:00:00

abstract：:The [URE3] and [PSI(+)] prions are infectious amyloid forms of Ure2p and Sup35p. Several chaperones influence prion propagation: Hsp104p overproduction destabilizes [PSI(+)], whereas [URE3] is sensitive to excess of Ssa1p or Ydj1p. Here, we show that overproduction of the chaperone, Sse1p, can efficiently cure [URE3]....

journal_title：Molecular biology of the cell

authors： Kryndushkin D,Wickner RB

更新日期：2007-06-01 00:00:00

abstract：:Endosomal trafficking of signaling proteins plays an essential role in cellular homeostasis. The seven-pass transmembrane protein Frizzled (Fz) is a critical component of Wnt signaling. Although Wnt signaling is proposed to be regulated by endosomal trafficking of Fz, the molecular events that enable this regulation a...

journal_title：Molecular biology of the cell

authors： Pradhan-Sundd T,Verheyen EM

更新日期：2015-09-15 00:00:00