A novel pathway of rapid TLR-triggered activation of integrin-dependent leukocyte adhesion that requires Rap1 GTPase.

abstract：:Podosomes are dynamic actin-rich structures composed of a dense F-actin core surrounded by a cloud of more diffuse F-actin. Src performs one or more unique functions in osteoclasts (OCLs), and podosome belts and bone resorption are impaired in the absence of Src. Using Src(-/-) OCLs, we investigated the specific funct...

journal_title：Molecular biology of the cell

authors： Destaing O,Sanjay A,Itzstein C,Horne WC,Toomre D,De Camilli P,Baron R

更新日期：2008-01-01 00:00:00

abstract：:Protein phosphatase 1 (PP1) is a ubiquitous serine/threonine phosphatase that regulates many cellular processes, including cell division. When transiently expressed as fluorescent protein (FP) fusions, the three PP1 isoforms, alpha, beta/delta, and gamma1, are active phosphatases with distinct localization patterns. W...

journal_title：Molecular biology of the cell

authors： Trinkle-Mulcahy L,Andrews PD,Wickramasinghe S,Sleeman J,Prescott A,Lam YW,Lyon C,Swedlow JR,Lamond AI

更新日期：2003-01-01 00:00:00

abstract：:LLCPK-1 cells were transfected with a green fluorescent protein (GFP)-alpha tubulin construct and a cell line permanently expressing GFP-alpha tubulin was established (LLCPK-1alpha). The mitotic index and doubling time for LLCPK-1alpha were not significantly different from parental cells. Quantitative immunoblotting s...

journal_title：Molecular biology of the cell

authors： Rusan NM,Fagerstrom CJ,Yvon AM,Wadsworth P

更新日期：2001-04-01 00:00:00

abstract：:Silica inhalation leads to the development of the chronic lung disease silicosis. Macrophages are killed by uptake of nonopsonized silica particles, and this is believed to play a critical role in the etiology of silicosis. However, the mechanism of nonopsonized-particle uptake is not well understood. We compared the ...

journal_title：Molecular biology of the cell

authors： Gilberti RM,Knecht DA

更新日期：2015-02-01 00:00:00

abstract：:Murine connexin 40 (Cx40) and connexin 43 (Cx43) do not form functional heterotypic gap junction channels. This property may contribute to the preferential propagation of action potentials in murine conductive myocardium (expressing Cx40) which is surrounded by working myocardium, expressing Cx43. When mouse Cx40 and ...

journal_title：Molecular biology of the cell

authors： Haubrich S,Schwarz HJ,Bukauskas F,Lichtenberg-Fraté H,Traub O,Weingart R,Willecke K

更新日期：1996-12-01 00:00:00

abstract：:Condensins are highly conserved proteins that are important for chromosome maintenance in nearly all forms of life. Although many organisms employ two forms of the condensin complex, the condensin genes in Tetrahymena have expanded even further. Here we report a form of condensin that is specifically active during sex...

journal_title：Molecular biology of the cell

authors： Howard-Till R,Tian M,Loidl J

更新日期：2019-05-15 00:00:00

abstract：:Melanosomes are tissue-specific organelles within which melanin is synthesized and stored. The melanocyte-specific glycoprotein Pmel17 is enriched in the lumen of premelanosomes, where it associates with characteristic striations of unknown composition upon which melanin is deposited. However, Pmel17 is synthesized as...

journal_title：Molecular biology of the cell

authors： Berson JF,Harper DC,Tenza D,Raposo G,Marks MS

更新日期：2001-11-01 00:00:00

abstract：:Shiga-toxin-producing Escherichia coli remain a food-borne health threat. Shiga toxin is endocytosed by intestinal epithelial cells and transported retrogradely through the secretory pathway. It is ultimately translocated to the cytosol where it inhibits protein translation. We found that Shiga toxin transport through...

journal_title：Molecular biology of the cell

authors： Hehnly H,Longhini KM,Chen JL,Stamnes M

更新日期：2009-10-01 00:00:00

abstract：:Tumor initiation and growth is associated with significant changes in the surrounding tissue. During carcinoma progression, a global stiffening of the extracellular matrix is observed and is interpreted as a signature of aggressive invasive tumors. However, it is still unknown whether this increase in matrix rigidity ...

journal_title：Molecular biology of the cell

authors： Staneva R,Burla F,Koenderink GH,Descroix S,Vignjevic DM,Attieh Y,Verhulsel M

更新日期：2018-12-01 00:00:00

abstract：:Export of mRNA from the nucleus is linked to proper processing and packaging into ribonucleoprotein complexes. Although several observations indicate a coupling between mRNA 3' end formation and export, it is not known how these two processes are mechanistically connected. Here, we show that a subunit of the mammalian...

journal_title：Molecular biology of the cell

authors： Ruepp MD,Aringhieri C,Vivarelli S,Cardinale S,Paro S,Schümperli D,Barabino SM

更新日期：2009-12-01 00:00:00

abstract：:Rab 11 GTPase is an important regulator of endocytic membrane traffic. Recently, we and others have identified a novel family of Rab11 binding proteins, known as Rab11-family interacting proteins (FIPs). One of the family members, Rab coupling protein (RCP), was identified as a protein binding to both Rab4 and Rab11 G...

journal_title：Molecular biology of the cell

authors： Peden AA,Schonteich E,Chun J,Junutula JR,Scheller RH,Prekeris R

更新日期：2004-08-01 00:00:00

abstract：:In many insects, development of the oocyte arrests temporarily just before vitellogenesis, the period when vitellogenins (yolk proteins) accumulate in the oocyte. Following hormonal and environmental cues, development of the oocyte resumes, and endocytosis of vitellogenins begins. An essential component of yolk uptake...

journal_title：Molecular biology of the cell

authors： Schonbaum CP,Perrino JJ,Mahowald AP

更新日期：2000-02-01 00:00:00

abstract：:Autocrine motility factor receptor (AMF-R) is a cell surface receptor that is also localized to a smooth subdomain of the endoplasmic reticulum, the AMF-R tubule. By postembedding immunoelectron microscopy, AMF-R concentrates within smooth plasmalemmal vesicles or caveolae in both NIH-3T3 fibroblasts and HeLa cells. B...

journal_title：Molecular biology of the cell

authors： Benlimame N,Le PU,Nabi IR

更新日期：1998-07-01 00:00:00

abstract：:On starvation, the cellular slime mold Dictyostelium discoideum initiates a program of development leading to formation of multicellular structures. The initial cell aggregation requires chemotaxis to cyclic AMP (cAMP) and relay of the cAMP signal by the activation of adenylyl cyclase (ACA), and it has been shown prev...

journal_title：Molecular biology of the cell

authors： Bolourani P,Spiegelman GB,Weeks G

更新日期：2006-10-01 00:00:00

abstract：:Kinetochores are the proteinaceous complexes that assemble on centromeric DNA and direct eukaryotic chromosome segregation. The mechanisms by which higher eukaryotic cells define centromeres are poorly understood. Possible molecular contributors to centromere specification include the underlying DNA sequences and epig...

journal_title：Molecular biology of the cell

authors： Edwards NS,Murray AW

更新日期：2005-04-01 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：:The last steps of multivesicular body (MVB) formation, human immunodeficiency virus (HIV)-1 budding and cytokinesis require a functional endosomal sorting complex required for transport (ESCRT) machinery to facilitate topologically equivalent membrane fission events. Increased sodium tolerance (IST) 1, a new positive ...

journal_title：Molecular biology of the cell

authors： Agromayor M,Carlton JG,Phelan JP,Matthews DR,Carlin LM,Ameer-Beg S,Bowers K,Martin-Serrano J

更新日期：2009-03-01 00:00:00

abstract：:Signals conveyed through the RAS-ERK pathway are essential for the determination of cell fate. It is well established that signal variability is achieved in the different microenvironments in which signals unfold. It is also known that signal duration is critical for decisions concerning cell commitment. However, it i...

journal_title：Molecular biology of the cell

authors： Herrero A,Casar B,Colón-Bolea P,Agudo-Ibáñez L,Crespo P

更新日期：2016-06-15 00:00:00

abstract：:Dynamic regulation of cytoskeletal contractility through phosphorylation of the nonmuscle Myosin-II regulatory light chain (MRLC) provides an essential source of tension for shaping epithelial tissues. Rho GTPase and its effector kinase ROCK have been implicated in regulating MRLC phosphorylation in vivo, but evidence...

journal_title：Molecular biology of the cell

authors： Neubueser D,Hipfner DR

更新日期：2010-08-15 00:00:00

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：:Protein kinase D2 (PKD2) belongs to the PKD family of serine/threonine kinases that is activated by phorbol esters and G protein-coupled receptors (GPCRs). Its C-terminal regulatory domain comprises two cysteine-rich domains (C1a/C1b) followed by a pleckstrin homology (PH) domain. Here, we examined the role of the reg...

journal_title：Molecular biology of the cell

authors： Auer A,von Blume J,Sturany S,von Wichert G,Van Lint J,Vandenheede J,Adler G,Seufferlein T

更新日期：2005-09-01 00:00:00

abstract：:Surface charges at the inner leaflet of the plasma membrane may contribute to regulate the surface recruitment of key signaling factors. Phosphatidylserine (PS) is an abundant charged lipid that may regulate charge distribution in different cell types. Here we characterize the subcellular distribution and function of ...

journal_title：Molecular biology of the cell

authors： Haupt A,Minc N

更新日期：2017-01-01 00:00:00

abstract：:The efficient maintenance of genome integrity in the face of cellular stress is vital to protect against human diseases such as cancer. DNA replication, chromatin dynamics, cellular signaling, nuclear architecture, cell cycle checkpoints, and other cellular activities contribute to the delicate spatiotemporal control ...

journal_title：Molecular biology of the cell

authors： Jensen RB,Rothenberg E

更新日期：2020-04-15 00:00:00

abstract：:In Tetrahymena thermophila, peptides secreted via dense-core granules, called mucocysts, are generated by proprotein processing. We used expression profiling to identify candidate processing enzymes, which localized as cyan fluorescent protein fusions to mucocysts. Of note, the aspartyl cathepsin Cth3p plays a key rol...

journal_title：Molecular biology of the cell

authors： Kumar S,Briguglio JS,Turkewitz AP

更新日期：2014-08-15 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：: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：:Ubiquitination is a reversible modification that influences a broad range of physiological processes. There are approximately 90 deubiquitinases (DUBs) encoded in the human genome, of which 79 are predicted to have catalytic activity. We tagged 66 DUBs with green fluorescent protein and systematically surveyed their s...

journal_title：Molecular biology of the cell

authors： Urbé S,Liu H,Hayes SD,Heride C,Rigden DJ,Clague MJ

更新日期：2012-03-01 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 Saccharomyces cerevisiae genes TOR1 and TOR2 were originally identified by mutations that confer resistance to the immunosuppressant rapamycin. TOR2 was previously shown to encode an essential 282-kDa phosphatidylinositol kinase (PI kinase) homologue. The TOR1 gene product is also a large (281 kDa) PI kinase homol...

journal_title：Molecular biology of the cell

authors： Helliwell SB,Wagner P,Kunz J,Deuter-Reinhard M,Henriquez R,Hall MN

更新日期：1994-01-01 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