Roles of polymerization dynamics, opposed motors, and a tensile element in governing the length of Xenopus extract meiotic spindles.

abstract：:The trafficking of endocytosed receptors through phosphatidylinositol 3-phosphate [PtdIns(3)P]-containing endosomes is thought to attenuate their signaling. Here, we show that the PtdIns(3)P 5-kinase Fab1/PIKfyve controls trafficking but not silencing of endocytosed receptors. Drosophila fab1 mutants contain undetecta...

journal_title：Molecular biology of the cell

authors： Rusten TE,Rodahl LM,Pattni K,Englund C,Samakovlis C,Dove S,Brech A,Stenmark H

更新日期：2006-09-01 00:00:00

abstract：:In the fission yeast Schizosaccharomyces pombe, three genes that function in the RNA interference (RNAi) pathway, ago1+, dcr1+, and rdp1+, have recently been shown to be important for timely formation of heterochromatin and accurate chromosome segregation. In the present study, we present evidence that null mutants fo...

journal_title：Molecular biology of the cell

authors： Carmichael JB,Provost P,Ekwall K,Hobman TC

更新日期：2004-03-01 00:00:00

abstract：:Axonemal dyneins are molecular motors that drive the beating of cilia and flagella. We report here the identification and partial cloning of seven unique axonemal dynein heavy chains from rat tracheal epithelial (RTE) cells. Combinations of axonemal-specific and degenerate primers to conserved regions around the catal...

journal_title：Molecular biology of the cell

authors： Andrews KL,Nettesheim P,Asai DJ,Ostrowski LE

更新日期：1996-01-01 00:00:00

abstract：:The unfolded protein response (UPR) monitors and maintains protein homeostasis in the endoplasmic reticulum (ER). In budding yeast, the UPR is a transcriptional regulatory pathway that is quiescent under normal conditions. Under conditions of acute ER stress, activation of UPR targets is essential for cell viability. ...

journal_title：Molecular biology of the cell

authors： Hsu CL,Prasad R,Blackman C,Ng DT

更新日期：2012-02-01 00:00:00

abstract：:Sec1p/Munc18 (SM) family proteins regulate SNARE complex function in membrane fusion through their interactions with syntaxins. In addition to syntaxins, only a few SM protein interacting proteins are known and typically, their binding modes with SM proteins are poorly characterized. We previously identified Mso1p as ...

journal_title：Molecular biology of the cell

authors： Weber M,Chernov K,Turakainen H,Wohlfahrt G,Pajunen M,Savilahti H,Jäntti J

更新日期：2010-04-15 00:00:00

abstract：:Drosophila bristles display a precise orientation and curvature. An asymmetric extension of the socket cell overlies the newly emerging bristle rudiment to provide direction for bristle elongation, a process thought to be orchestrated by the nerve dendrite lying between these cells. Scanning electron microscopic analy...

journal_title：Molecular biology of the cell

authors： Tilney LG,Connelly PS,Ruggiero L,Vranich KA,Guild GM,Derosier D

更新日期：2004-12-01 00:00:00

abstract：:In this study, we investigated the role of phospholipase D (PLD) in mediating Arf6 function in cells. Expression of Arf6 mutants that are defective in activating PLD, Arf6N48R and Arf6N48I, inhibited membrane recycling to the plasma membrane (PM), resulting in an accumulation of tubular endosomal membranes. Additional...

journal_title：Molecular biology of the cell

authors： Jovanovic OA,Brown FD,Donaldson JG

更新日期：2006-01-01 00:00:00

abstract：:The survival motor neuron (SMN) complex fulfils essential functions in the assembly of snRNPs, which are key components in the splicing of pre-mRNAs. Little is known about the regulation of SMN complex activity by posttranslational modification despite its complicated phosphorylation pattern. Several phosphatases had ...

journal_title：Molecular biology of the cell

authors： Husedzinovic A,Neumann B,Reymann J,Draeger-Meurer S,Chari A,Erfle H,Fischer U,Gruss OJ

更新日期：2015-01-15 00:00:00

abstract：:Activation of hepatic stellate cells during liver fibrosis is a major event facilitating an increase in extracellular matrix deposition. The up-regulation of smooth muscle alpha-actin and collagen type I is indicative of the activation process. The involvement of cysteine cathepsins, a class of lysosomal cysteine prot...

journal_title：Molecular biology of the cell

authors： Maubach G,Lim MC,Zhuo L

更新日期：2008-10-01 00:00:00

abstract：:Lens fiber formation and morphogenesis requires a precise orchestration of cell- extracellular matrix (ECM) and cell-cell adhesive changes in order for a lens epithelial cell to adopt a lens fiber fate, morphology, and migratory ability. The cell-ECM interactions that mediate these processes are largely unknown, and h...

journal_title：Molecular biology of the cell

authors： Hayes JM,Hartsock A,Clark BS,Napier HR,Link BA,Gross JM

更新日期：2012-12-01 00:00:00

abstract：:Protein kinase C (PKC) zeta has been implicated in insulin-induced glucose uptake in skeletal muscle cell, although the underlying mechanism remains unknown. In this study, we investigated the effect of PKCzeta on actin remodeling and glucose transport in differentiated rat L6 muscle cells expressing myc-tagged glucos...

journal_title：Molecular biology of the cell

authors： Liu LZ,Zhao HL,Zuo J,Ho SK,Chan JC,Meng Y,Fang FD,Tong PC

更新日期：2006-05-01 00:00:00

abstract：:The AP-2 adaptor complex plays a key role in cargo recognition and clathrin-coated vesicle formation at the plasma membrane. To investigate the functions of individual binding sites and domains of the AP-2 complex in vivo, we have stably transfected HeLa cells with wild-type and mutant small interfering RNA-resistant ...

journal_title：Molecular biology of the cell

authors： Motley AM,Berg N,Taylor MJ,Sahlender DA,Hirst J,Owen DJ,Robinson MS

更新日期：2006-12-01 00:00:00

abstract：:We demonstrate an example of signal transduction by an integrin and have begun to define the pathway through which this signaling is achieved. We constructed a stably transfected derivative of 293 cells (ATCC 1573) that expresses the platelet integrin GPIIbIIIa (alpha IIb beta 3). This cell line, clone B, adheres to a...

journal_title：Molecular biology of the cell

authors： Pelletier AJ,Bodary SC,Levinson AD

更新日期：1992-09-01 00:00:00

abstract：:S100A4, a member of the S100 family of Ca(2+)-binding proteins, is directly involved in tumor metastasis. In addition to its expression in tumor cells, S100A4 is expressed in normal cells and tissues, including fibroblasts and cells of the immune system. To examine the contribution of S100A4 to normal physiology, we e...

journal_title：Molecular biology of the cell

authors： Li ZH,Dulyaninova NG,House RP,Almo SC,Bresnick AR

更新日期：2010-08-01 00:00:00

abstract：:The role of plasma membrane (PM) area as a critical factor during cell motility is poorly understood, mainly due to an inability to precisely follow PM area dynamics. To address this fundamental question, we developed static and dynamic assays to follow exocytosis, endocytosis, and PM area changes during fibroblast sp...

journal_title：Molecular biology of the cell

authors： Gauthier NC,Rossier OM,Mathur A,Hone JC,Sheetz MP

更新日期：2009-07-01 00:00:00

abstract：:The kinesin superfamily of microtubule motor proteins is important in many cellular processes, including mitosis and meiosis, vesicle transport, and the establishment and maintenance of cell polarity. We have characterized two related kinesins in fission yeast, klp5+ and klp6+,, that are amino-terminal motors of the K...

journal_title：Molecular biology of the cell

authors： West RR,Malmstrom T,Troxell CL,McIntosh JR

更新日期：2001-12-01 00:00:00

abstract：:A number of peroxisome-associated proteins have been described that are involved in the import of proteins into peroxisomes, among which is the receptor for peroxisomal targeting signal 1 (PTS1) proteins Pex5p, the integral membrane protein Pex13p, which contains an Src homology 3 (SH3) domain, and the peripheral memb...

journal_title：Molecular biology of the cell

authors： Bottger G,Barnett P,Klein AT,Kragt A,Tabak HF,Distel B

更新日期：2000-11-01 00:00:00

abstract：:Septins are members of a highly conserved family of filamentous proteins that are required in many organisms for the completion of cytokinesis. In addition, septins have been implicated in a number of important cellular processes and have been suggested to have roles in regulating membrane traffic. Given the proposed ...

journal_title：Molecular biology of the cell

authors： Huang YW,Yan M,Collins RF,Diciccio JE,Grinstein S,Trimble WS

更新日期：2008-04-01 00:00:00

abstract：:The endocytic and autophagic pathways are involved in the membrane trafficking of exogenous and endogenous materials to lysosomes. However, the mechanisms that regulate these pathways are largely unknown. We previously reported that Rubicon, a Beclin 1-binding protein, negatively regulates both the autophagic and endo...

journal_title：Molecular biology of the cell

authors： Tabata K,Matsunaga K,Sakane A,Sasaki T,Noda T,Yoshimori T

更新日期：2010-12-01 00:00:00

abstract：:In many organisms nonsense mutations decrease the level of mRNA. In the case of mammalian cells, it is still controversial whether translation is required for this nonsense-mediated RNA decrease (NMD). Although previous analyzes have shown that conditions that impede translation termination at nonsense codons also pre...

journal_title：Molecular biology of the cell

authors： Buzina A,Shulman MJ

更新日期：1999-03-01 00:00:00

abstract：:In response to stress conditions (such as nutrient limitation or accumulation of damaged organelles) and certain pathological situations, eukaryotic cells use autophagy as a survival mechanism. During nutrient stress the main purpose of autophagy is to degrade cytoplasmic materials within the lysosome/vacuole lumen an...

journal_title：Molecular biology of the cell

authors： Yang Z,Huang J,Geng J,Nair U,Klionsky DJ

更新日期：2006-12-01 00:00:00

abstract：:While lysosomes are degradative compartments and one of the defenses against invading pathogens, they are also hubs of metabolic activity. Late endocytic compartments accumulate around Plasmodium berghei liver-stage parasites during development, and whether this is a host defense strategy or active recruitment by the ...

journal_title：Molecular biology of the cell

authors： Petersen W,Stenzel W,Silvie O,Blanz J,Saftig P,Matuschewski K,Ingmundson A

更新日期：2017-03-15 00:00:00

abstract：:Centrioles and basal bodies are cylinders composed of nine triplet microtubule blades that play essential roles in the centrosome and in flagellar assembly. Chlamydomonas cells with the bld2-1 mutation fail to assemble doublet and triplet microtubules and have defects in cleavage furrow placement and meiosis. Using po...

journal_title：Molecular biology of the cell

authors： Dutcher SK,Morrissette NS,Preble AM,Rackley C,Stanga J

更新日期：2002-11-01 00:00:00

abstract：:The eukaryotic flagellum is a large structure into which specific constituent proteins must be targeted, transported and assembled after their synthesis in the cytoplasm. Using Trypanosoma brucei and a proteomic approach, we have identified and characterized a novel set of adenylate kinase proteins that are localized ...

journal_title：Molecular biology of the cell

authors： Pullen TJ,Ginger ML,Gaskell SJ,Gull K

更新日期：2004-07-01 00:00:00

abstract：:Mechanical cues regulate the function of a broad range of stem cells in culture and in tissue. For example, soft substrates promote the neuronal differentiation of neural stem cells (NSCs) by suppressing cytoskeletal contractility. However, the mechanisms that link cytoskeletal signaling to the transcriptional regulat...

journal_title：Molecular biology of the cell

authors： Kang PH,Schaffer DV,Kumar S

更新日期：2020-03-01 00:00:00

abstract：:The actin cytoskeleton is constantly assembling and disassembling. Cells harness the energy of these turnover dynamics to drive cell motility and organize cytoplasm. Although much is known about how cells control actin polymerization, we do not understand how actin filaments depolymerize inside cells. I briefly descri...

journal_title：Molecular biology of the cell

authors： Brieher W

更新日期：2013-08-01 00:00:00

abstract：:Two-dimensional (2D) substrate rigidity promotes myosin II activity to increase traction force in a process negatively regulated by tropomyosin (Tpm) 2.1. We recently discovered that actomyosin contractility can increase intracellular pressure and switch tumor cells from low-pressure lamellipodia to high-pressure lobo...

journal_title：Molecular biology of the cell

authors： Sao K,Jones TM,Doyle AD,Maity D,Schevzov G,Chen Y,Gunning PW,Petrie RJ

更新日期：2019-05-01 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：: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：:The daily phagocytosis of shed photoreceptor outer segments by pigment epithelial cells is critical for the maintenance of the retina. In a subtractive polymerase chain reaction analysis, we found that functional differentiation of human ARPE19 retinal pigment epithelial (RPE) cells is accompanied by up-regulation of ...

journal_title：Molecular biology of the cell

authors： Law AL,Ling Q,Hajjar KA,Futter CE,Greenwood J,Adamson P,Wavre-Shapton ST,Moss SE,Hayes MJ

更新日期：2009-09-01 00:00:00