Temporal regulation of cell polarity via the interaction of the Ras GTPase Rsr1 and the scaffold protein Bem1.

abstract：:Myosin II-dependent contraction of the contractile ring drives equatorial furrowing during cytokinesis in animal cells. Nonetheless, myosin II-null cells of the cellular slime mold Dictyostelium divide efficiently when adhering to substrates by making use of polar traction forces. Here, we show that in the presence of...

journal_title：Molecular biology of the cell

authors： Kanada M,Nagasaki A,Uyeda TQ

更新日期：2005-08-01 00:00:00

abstract：:Coordinated regulation of cell proliferation is vital for epithelial tissue homeostasis, and uncontrolled proliferation is a hallmark of carcinogenesis. A growing body of evidence indicates that epithelial tight junctions (TJs) play a role in these processes, although the mechanisms involved are poorly understood. In ...

journal_title：Molecular biology of the cell

authors： Capaldo CT,Koch S,Kwon M,Laur O,Parkos CA,Nusrat A

更新日期：2011-05-15 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：:Proteins of the SNARE (soluble N-ethylmalemide-sensitive factor attachment protein receptor) family are essential for the fusion of transport vesicles with an acceptor membrane. Despite considerable sequence divergence, their mechanism of action is conserved: heterologous sets assemble into membrane-bridging SNARE com...

journal_title：Molecular biology of the cell

authors： Kloepper TH,Kienle CN,Fasshauer D

更新日期：2007-09-01 00:00:00

abstract：:We recently reported that SMAP1, a GTPase-activating protein (GAP) for Arf6, directly interacts with clathrin and regulates the clathrin-dependent endocytosis of transferrin receptors from the plasma membrane. Here, we identified a SMAP1 homologue that we named SMAP2. Like SMAP1, SMAP2 exhibits GAP activity and intera...

journal_title：Molecular biology of the cell

authors： Natsume W,Tanabe K,Kon S,Yoshida N,Watanabe T,Torii T,Satake M

更新日期：2006-06-01 00:00:00

abstract：:Long-distance transport is crucial for polar-growing cells, such as neurons and fungal hyphae. Kinesins and myosins participate in this process, but their functional interplay is poorly understood. Here, we investigate the role of kinesin motors in hyphal growth of the plant pathogen Ustilago maydis. Although the micr...

journal_title：Molecular biology of the cell

authors： Schuchardt I,Assmann D,Thines E,Schuberth C,Steinberg G

更新日期：2005-11-01 00:00:00

abstract：:When demembranated sperm nuclei are placed in a Xenopus egg extract, they become surrounded by a nuclear envelope and then swell to form morphologically typical pronuclei. Granules ranging from < 1.0 to approximately 3.0 microns in diameter appear within such nuclei. Bell et al. identified four nucleolar proteins in t...

journal_title：Molecular biology of the cell

authors： Bauer DW,Murphy C,Wu Z,Wu CH,Gall JG

更新日期：1994-06-01 00:00:00

abstract：:Programmed DNA rearrangements are important processes present in many organisms. In the ciliated protozoan Tetrahymena thermophila, DNA rearrangements occur during the sexual conjugation process and lead to the deletion of thousands of specific DNA segments and fragmentation of the chromosomes. In this study, we found...

journal_title：Molecular biology of the cell

authors： Lin IT,Chao JL,Yao MC

更新日期：2012-06-01 00:00:00

abstract：:Molecular chaperones play key roles during growth, development, and stress survival. The ability to induce chaperone expression enables cells to cope with the accumulation of nonnative proteins under stress and complete developmental processes with an increased requirement for chaperone assistance. Here we generate an...

journal_title：Molecular biology of the cell

authors： Rogon C,Ulbricht A,Hesse M,Alberti S,Vijayaraj P,Best D,Adams IR,Magin TM,Fleischmann BK,Höhfeld J

更新日期：2014-08-01 00:00:00

abstract：:Ca2+-triggered exocytosis of synaptic vesicles is controlled by the Ca2+-binding protein synaptotagmin (syt) I. Fifteen additional isoforms of syt have been identified. Here, we compared the abilities of three syt isoforms (I, VII, and IX) to regulate soluble N-ethylmaleimide-sensitive factor attachment protein recept...

journal_title：Molecular biology of the cell

authors： Bhalla A,Tucker WC,Chapman ER

更新日期：2005-10-01 00:00:00

abstract：:To further elucidate the functions of actin in budding yeast and to relate actin structure to specific roles and interactions in vivo, we determined the phenotypes caused by 13 charged-to-alanine mutations isolated previously in the single Saccharomyces cerevisiae actin gene. Defects in actin organization, morphogenes...

journal_title：Molecular biology of the cell

authors： Drubin DG,Jones HD,Wertman KF

更新日期：1993-12-01 00:00:00

abstract：:We have identified a novel Ras-interacting protein from Dictyostelium, RIP3, whose function is required for both chemotaxis and the synthesis and relay of the cyclic AMP (cAMP) chemoattractant signal. rip3 null cells are unable to aggregate and lack receptor activation of adenylyl cyclase but are able, in response to ...

journal_title：Molecular biology of the cell

authors： Lee S,Parent CA,Insall R,Firtel RA

更新日期：1999-09-01 00:00:00

abstract：:We have recently shown that the pancreatic bile salt-dependent lipase (BSDL) can be taken up by intestinal cells and transported to the blood circulation. This mechanism likely involves (specific) receptor(s) able to bind BSDL and located at the apical intestinal cell membrane. In this study, using Int407 human intest...

journal_title：Molecular biology of the cell

authors： Bruneau N,Richard S,Silvy F,Verine A,Lombardo D

更新日期：2003-07-01 00:00:00

abstract：:Desmin interacts with nebulin establishing a direct link between the intermediate filament network and sarcomeres at the Z-discs. Here, we examined a desmin mutation, E245D, that is located within the coil IB (nebulin-binding) region of desmin and that has been reported to cause human cardiomyopathy and skeletal muscl...

journal_title：Molecular biology of the cell

authors： Conover GM,Henderson SN,Gregorio CC

更新日期：2009-02-01 00:00:00

abstract：:Cholesterol regulates plasma membrane (PM) association and functioning of syntaxin-4 and soluble N-ethylmaleimide-sensitive fusion protein 23 (SNAP23) in the secretory pathway. However, the molecular mechanism and cellular cholesterol pools that determine the localization and assembly of these target membrane SNAP rec...

journal_title：Molecular biology of the cell

authors： Reverter M,Rentero C,de Muga SV,Alvarez-Guaita A,Mulay V,Cairns R,Wood P,Monastyrskaya K,Pol A,Tebar F,Blasi J,Grewal T,Enrich C

更新日期：2011-11-01 00:00:00

abstract：:B cell antigen receptor (BCR) association with lipid rafts, the actin cytoskeleton, and clathrin-coated pits influences B cell signaling and antigen presentation. Although all three cellular structures have been separately implicated in BCR internalization, the relationship between them has not been clearly defined. I...

journal_title：Molecular biology of the cell

authors： Stoddart A,Jackson AP,Brodsky FM

更新日期：2005-05-01 00:00:00

abstract：:Cdk5, a cyclin-dependent kinase, is critical for neuronal development, neuronal migration, cortical lamination, and survival. Its survival role is based, in part, on "cross-talk" interactions with apoptotic and survival signaling pathways. Previously, we showed that Cdk5 phosphorylation of mitogen-activated protein ki...

journal_title：Molecular biology of the cell

authors： Zheng YL,Li BS,Kanungo J,Kesavapany S,Amin N,Grant P,Pant HC

更新日期：2007-02-01 00:00:00

abstract：:Tolerance to desiccation in cultures of Saccharomyces cerevisiae is inducible; only one in a million cells from an exponential culture survive desiccation compared with one in five cells in stationary phase. Here we exploit the desiccation sensitivity of exponentially dividing cells to understand the stresses imposed ...

journal_title：Molecular biology of the cell

authors： Welch AZ,Gibney PA,Botstein D,Koshland DE

更新日期：2013-01-01 00:00:00

abstract：:In endothelial cells specifically, cPLA2alpha translocates from the cytoplasm to the Golgi complex in response to cell confluence. Considering the link between confluence and cell-cell junction formation, and the emerging role of cPLA2alpha in intracellular trafficking, we tested whether Golgi-associated cPLA2alpha is...

journal_title：Molecular biology of the cell

authors： Regan-Klapisz E,Krouwer V,Langelaar-Makkinje M,Nallan L,Gelb M,Gerritsen H,Verkleij AJ,Post JA

更新日期：2009-10-01 00:00:00

abstract：:Two different human diseases, X-linked myotubular myopathy and Charcot-Marie-Tooth disease, result from mutant MTM1 or MTMR2 lipid phosphatases. Although events involved in endosomal PI(3)P and PI(3,5)P(2) synthesis are well established and pivotal in receptor signaling and degradation, enzymes involved in phosphoinos...

journal_title：Molecular biology of the cell

authors： Cao C,Backer JM,Laporte J,Bedrick EJ,Wandinger-Ness A

更新日期：2008-08-01 00:00:00

abstract：:Members of the transforming acidic coiled coil (TACC) protein family are emerging as important mitotic spindle assembly proteins in a variety of organisms. The molecular details of how TACC proteins function are unknown, but TACC proteins have been proposed to recruit microtubule-stabilizing proteins of the tumor over...

journal_title：Molecular biology of the cell

authors： Albee AJ,Wiese C

更新日期：2008-08-01 00:00:00

abstract：:Lipoprotein(a) (Lp(a)) is associated with cardiovascular disease risk. This may be attributable to the ability of Lp(a) to elicit endothelial dysfunction. We previously reported that apolipoprotein(a) (apo(a); the distinguishing kringle-containing component of Lp(a)) elicits cytoskeletal rearrangements in vascular end...

journal_title：Molecular biology of the cell

authors： Cho T,Romagnuolo R,Scipione C,Boffa MB,Koschinsky ML

更新日期：2013-02-01 00:00:00

abstract：:Junctional integrity of endothelial monolayers is crucial to control movement of molecules and cells across the endothelium. Examining the structure and dynamics of cell junctions in endothelial monolayers, we discovered a role for septins. Contacts between adjacent endothelial cells were dynamic, with protrusions ext...

journal_title：Molecular biology of the cell

authors： Kim J,Cooper JA

更新日期：2018-07-15 00:00:00

abstract：:In all orders of life, cell cycle progression in proliferating cells is dependent on cell growth, and the extent of growth required for cell cycle progression is proportional to growth rate. Thus, cells growing rapidly in rich nutrients are substantially larger than slow-growing cells. In budding yeast, a conserved si...

journal_title：Molecular biology of the cell

authors： Alcaide-Gavilán M,Lucena R,Banuelos S,Kellogg DR

更新日期：2020-08-15 00:00:00

abstract：:Rods and rings (RRs) are large linear- or circular-shaped structures typically described as polymers of IMPDH (inosine monophosphate dehydrogenase). They have been observed across a wide variety of cell types and species and can be induced to form by inhibitors of IMPDH. RRs are thought to play a role in the regulatio...

journal_title：Molecular biology of the cell

authors： Schiavon CR,Griffin ME,Pirozzi M,Parashuraman R,Zhou W,Jinnah HA,Reines D,Kahn RA

更新日期：2018-09-15 00:00:00

abstract：:Epithelial tissues are protective barriers that display a remarkable ability to repair wounds. Wound repair is often associated with an accumulation of actin and nonmuscle myosin II around the wound, forming a purse string. The role of actomyosin networks in generating mechanical force during wound repair is not well ...

journal_title：Molecular biology of the cell

authors： Fernandez-Gonzalez R,Zallen JA

更新日期：2013-10-01 00:00:00

abstract：:Proteins establish and maintain a distinct intracellular localization by means of targeting, retention, and retrieval signals, ensuring most proteins reside predominantly in one cellular location. The enzymes involved in the maturation of lamin A present a challenge to this paradigm. Lamin A is first synthesized as a ...

journal_title：Molecular biology of the cell

authors： Barrowman J,Hamblet C,George CM,Michaelis S

更新日期：2008-12-01 00:00:00

abstract：:In the phagocytic cell, NADPH oxidase (Nox2) system, cytoplasmic regulators (p47(phox), p67(phox), p40(phox), and Rac) translocate and associate with the membrane-spanning flavocytochrome b(558), leading to activation of superoxide production. We examined membrane targeting of phox proteins and explored conformational...

journal_title：Molecular biology of the cell

authors： Ueyama T,Tatsuno T,Kawasaki T,Tsujibe S,Shirai Y,Sumimoto H,Leto TL,Saito N

更新日期：2007-02-01 00:00:00

abstract：:Nucleostemin (NS) is expressed in the nucleoli of adult and embryonic stem cells and in many tumors and tumor-derived cell lines. In coimmunoprecipitation experiments, nucleostemin is recovered with the tumor suppressor p53, and more recently we have demonstrated that nucleostemin exerts its role in cell cycle progres...

journal_title：Molecular biology of the cell

authors： Ma H,Pederson T

更新日期：2008-07-01 00:00:00

abstract：:Forces generated by heart muscle contraction must be balanced by adhesion to the extracellular matrix (ECM) and to other cells for proper heart function. Decades of data have suggested that cell-ECM adhesions are important for sarcomere assembly. However, the relationship between cell-ECM adhesions and sarcomeres asse...

journal_title：Molecular biology of the cell

authors： Taneja N,Neininger AC,Burnette DT

更新日期：2020-06-01 00:00:00