Asymmetric localization of calpain 2 during neutrophil chemotaxis.

abstract：:Hypoxia-inducible factors (HIF-1 and HIF-2) are essential mediators for the adaptive transcriptional response of cells and tissues to low-oxygen conditions. Under hypoxia or when cells are treated with various nonhypoxic stimuli, the active HIF-α subunits are mainly regulated through increased protein stabilization. F...

journal_title：Molecular biology of the cell

authors： Lafleur VN,Richard S,Richard DE

更新日期：2014-03-01 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：:Multiple tau gene mutations are pathogenic for hereditary frontotemporal dementia and parkinsonism linked to chromosome 17 (FTDP-17), with filamentous tau aggregates as the major lesions in the CNS of these patients. Recent studies have shown that bacterially expressed recombinant tau proteins with FTDP-17 missense mu...

journal_title：Molecular biology of the cell

authors： Vogelsberg-Ragaglia V,Bruce J,Richter-Landsberg C,Zhang B,Hong M,Trojanowski JQ,Lee VM

更新日期：2000-12-01 00:00:00

abstract：:Long-range chromatin interactions between gene loci in the cell nucleus are important for many biological processes, including transcriptional regulation. Previously, we demonstrated that several genes specifically cluster with the astrocyte-specific gene for glial fibrillary acidic protein (Gfap) during astrocyte dif...

journal_title：Molecular biology of the cell

authors： Ito K,Noguchi A,Uosaki Y,Taga T,Arakawa H,Takizawa T

更新日期：2018-01-15 00:00:00

abstract：:The TOM (translocase of the outer mitochondrial membrane) complex of the outer mitochondrial membrane is required for the import of proteins into the organelle. The core TOM complex contains five proteins, including three small components Tom7, Tom6, and Tom5. We have created single and double mutants of all combinati...

journal_title：Molecular biology of the cell

authors： Sherman EL,Go NE,Nargang FE

更新日期：2005-09-01 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：: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：:Polyubiquitination marks proteins for degradation by the 26S proteasome and is carried out by a cascade of enzymes that includes ubiquitin-activating enzymes (E1s), ubiquitin-conjugating enzymes (E2s), and ubiquitin ligases (E3s). The anaphase-promoting complex or cyclosome (APC/C) comprises a multisubunit ubiquitin l...

journal_title：Molecular biology of the cell

authors： Leverson JD,Joazeiro CA,Page AM,Huang Hk,Hieter P,Hunter T

更新日期：2000-07-01 00:00:00

abstract：:Cyclin-dependent kinase (Cdk)2/cyclin E is imported into nuclei assembled in Xenopus egg extracts by a pathway that requires importin-alpha and -beta. Here, we identify a basic nuclear localization sequence (NLS) in the N-terminus of Xenopus cyclin E. Mutation of the NLS eliminated nuclear accumulation of both cyclin ...

journal_title：Molecular biology of the cell

authors： Moore JD,Kornbluth S,Hunt T

更新日期：2002-12-01 00:00:00

abstract：:Rab proteins are thought to function in the processes by which transport vesicles identify and/or fuse with their respective target membranes. The bulk of these proteins are membrane associated, but a measurable fraction can be found in the cytosol. The cytosolic forms of rab3A, rab11, and Sec4 occur as equimolar comp...

journal_title：Molecular biology of the cell

authors： Soldati T,Riederer MA,Pfeffer SR

更新日期：1993-04-01 00:00:00

abstract：:The human immunodeficiency virus type 1 (HIV-1) accessory protein Nef directs virus escape from immune surveillance by subverting host cell intracellular signaling and membrane traffic to down-regulate cell-surface major histocompatibility complex class I (MHC-I). The interaction of Nef with the sorting proteins PACS-...

journal_title：Molecular biology of the cell

authors： Dikeakos JD,Thomas L,Kwon G,Elferich J,Shinde U,Thomas G

更新日期：2012-06-01 00:00:00

abstract：:Ubiquitination of proliferating cell nuclear antigen (PCNA) plays a crucial role in regulating replication past DNA damage in eukaryotes, but the detailed mechanisms appear to vary in different organisms. We have examined the modification of PCNA in Schizosaccharomyces pombe. We find that, in response to UV irradiatio...

journal_title：Molecular biology of the cell

authors： Frampton J,Irmisch A,Green CM,Neiss A,Trickey M,Ulrich HD,Furuya K,Watts FZ,Carr AM,Lehmann AR

更新日期：2006-07-01 00:00:00

abstract：:Integrin alpha 3A cytoplasmic tail phosphorylation was mapped to amino acid S1042, as determined by mass spectrometry, and confirmed by mutagenesis. This residue occurs within a "QPSXXE" motif conserved in multiple alpha chains (alpha 3A, alpha 6A, alpha 7A), from multiple species. Phosphorylation of alpha 3A and alph...

journal_title：Molecular biology of the cell

authors： Zhang XA,Bontrager AL,Stipp CS,Kraeft SK,Bazzoni G,Chen LB,Hemler ME

更新日期：2001-02-01 00:00:00

abstract：:Proper functioning of the protein-folding quality control network depends on the network's ability to discern diverse structural perturbations to the native states of its protein substrates. Despite the centrality of the detection of misfolded states to cell home-ostasis, very little is known about the exact sequence ...

journal_title：Molecular biology of the cell

authors： Furth N,Gertman O,Shiber A,Alfassy OS,Cohen I,Rosenberg MM,Doron NK,Friedler A,Ravid T

更新日期：2011-12-01 00:00:00

abstract：:In this study, we examined the subcellular distribution and functions of LIMK1 in developing neurons. Confocal microscopy, subcellular fractionation, and expression of several epitope-tagged LIMK1 constructs revealed that LIMK1 is enriched in the Golgi apparatus and growth cones, with the LIM domain required for Golgi...

journal_title：Molecular biology of the cell

authors： Rosso S,Bollati F,Bisbal M,Peretti D,Sumi T,Nakamura T,Quiroga S,Ferreira A,Cáceres A

更新日期：2004-07-01 00:00:00

abstract：:The yeast Smf1p Nramp manganese transporter is posttranslationally regulated by environmental manganese. Smf1p is stabilized at the cell surface with manganese starvation, but is largely degraded in the vacuole with physiological manganese through a mechanism involving the Rsp5p adaptor complex Bsd2p/Tre1p/Tre2p. We n...

journal_title：Molecular biology of the cell

authors： Jensen LT,Carroll MC,Hall MD,Harvey CJ,Beese SE,Culotta VC

更新日期：2009-06-01 00:00:00

abstract：:All known mechanisms of mitotic spindle orientation rely on astral microtubules. We report that even in the absence of astral microtubules, metaphase spindles in MDCK and HeLa cells are not randomly positioned along their x-z dimension, but preferentially adopt shallow β angles between spindle pole axis and substratum...

journal_title：Molecular biology of the cell

authors： Lázaro-Diéguez F,Ispolatov I,Müsch A

更新日期：2015-04-01 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：:Previously published reports support the concept that, besides promoting homotypic intercellular adhesion, cadherins may transfer intracellular signals. However, the signaling pathways triggered by cadherin clustering and their biological significance are still poorly understood. We report herein that transfection of ...

journal_title：Molecular biology of the cell

authors： Lampugnani MG,Zanetti A,Breviario F,Balconi G,Orsenigo F,Corada M,Spagnuolo R,Betson M,Braga V,Dejana E

更新日期：2002-04-01 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：:During stem cell divisions, mitotic microtubules do more than just segregate the chromosomes. They also determine whether a cell divides virtually symmetrically or asymmetrically by establishing spindle orientation and the plane of cell division. This can be decisive for the fate of the stem cell progeny. Spindle defe...

journal_title：Molecular biology of the cell

authors： Mora-Bermúdez F,Huttner WB

更新日期：2015-12-01 00:00:00

abstract：:We applied a combination of laser microsurgery and quantitative polarization microscopy to study kinetochore-independent forces that act on chromosome arms during meiosis in crane fly spermatocytes. When chromosome arms located within one of the half-spindles during prometa- or metaphase were cut with the laser, the a...

journal_title：Molecular biology of the cell

authors： LaFountain JR Jr,Oldenbourg R,Cole RW,Rieder CL

更新日期：2001-12-01 00:00:00

abstract：:The key regulator of entry into mitosis is the serine/threonine kinase p34cdc2. This kinase is regulated both by association with cyclins and by phosphorylation at several sites. Phosphorylation at Tyr 15 and Thr 14 are believed to inhibit the kinase activity of cdc2. In Schizosaccharomyces pombe, the wee1 (and possib...

journal_title：Molecular biology of the cell

authors： Kornbluth S,Sebastian B,Hunter T,Newport J

更新日期：1994-03-01 00:00:00

abstract：:Vascular endothelial cells are important in a variety of physiological and pathophysiological processes. The growth and functions of vascular endothelial cells are regulated both by soluble mitogenic and differentiation factors and by interactions with the extracellular matrix; however, relatively little is known abou...

journal_title：Molecular biology of the cell

authors： Short SM,Talbott GA,Juliano RL

更新日期：1998-08-01 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：:HIF-1alpha is the regulated subunit of the HIF-1 transcription factor, which induces transcription of a number of genes involved in the cellular response to hypoxia. The HIF-1alpha protein is rapidly degraded in cells supplied with adequate oxygen but is stabilized in hypoxic cells. Using polysome profile analysis, we...

journal_title：Molecular biology of the cell

authors： Lang KJ,Kappel A,Goodall GJ

更新日期：2002-05-01 00:00:00

abstract：:Golgi fragmentation is a common feature in multiple neurodegenerative diseases; however, the precise mechanism that causes fragmentation remains obscure. A potential link between Cdk5 and Golgi fragmentation in Alzheimer's disease (AD) was investigated in this study. Because Golgi is physiologically fragmented during ...

journal_title：Molecular biology of the cell

authors： Sun KH,de Pablo Y,Vincent F,Johnson EO,Chavers AK,Shah K

更新日期：2008-07-01 00:00:00

abstract：:The tomosyn/Sro7 family is thought to play an important role in cell surface trafficking both as an effector of Rab family GTPases and as a regulator of plasma-membrane SNARE function. Recent work has determined the binding site of GTP-bound Sec4 on Sro7. Here we examine the effect of mutations in Sro7 that block Sec4...

journal_title：Molecular biology of the cell

authors： Rossi G,Watson K,Kennedy W,Brennwald P

更新日期：2018-06-15 00:00:00

abstract：:Extended coiled-coil proteins of the Golgin family play prominent roles in maintaining the structure and function of the Golgi complex. Here we further investigate the Golgin protein Coy1 and document its function in retrograde transport between early Golgi compartments. Cells that lack Coy1 displayed a reduced half-l...

journal_title：Molecular biology of the cell

authors： Anderson NS,Mukherjee I,Bentivoglio CM,Barlowe C

更新日期：2017-08-09 00:00:00

abstract：:In vitro Ca++ activates gelsolin to sever F-actin and form a gelsolin-actin (GA) complex at the+end of F-actin that is not dissociated by ethylene glycol-bis(beta-aminoethyl ether)-N,N,N',N'-tetraacetic acid (EGTA) but is separated by EGTA+PIP/PIP2. The gelsolin blocks the+end on the actin filament, but the-end of the...

journal_title：Molecular biology of the cell

authors： Deaton JD,Guerrero T,Howard TH

更新日期：1992-12-01 00:00:00