Rapid induction of senescence in human cervical carcinoma cells.

abstract：:Recent studies show that plant organ positioning may be mediated by localized concentrations of the plant hormone auxin. Auxin patterning in the shoot apical meristem is in turn brought about by the subcellular polar distribution of the putative auxin efflux mediator, PIN1. However, the question of what signals determ...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Jönsson H,Heisler MG,Shapiro BE,Meyerowitz EM,Mjolsness E

更新日期：2006-01-31 00:00:00

abstract：:Atomic level characterization of proteins and other macromolecules in the living cell is challenging. Recent advances in NMR instrumentation and methods, however, have enabled in-cell studies with prospects for multidimensional spectral characterization of individual macromolecular components. We present NMR data on t...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Augustus AM,Reardon PN,Spicer LD

更新日期：2009-03-31 00:00:00

abstract：:Mammalian CLC proteins function as Cl(-) channels or as electrogenic Cl(-)/H(+) exchangers and are present in the plasma membrane and intracellular vesicles. We now show that the ClC-6 protein is almost exclusively expressed in neurons of the central and peripheral nervous systems, with a particularly high expression ...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Poët M,Kornak U,Schweizer M,Zdebik AA,Scheel O,Hoelter S,Wurst W,Schmitt A,Fuhrmann JC,Planells-Cases R,Mole SE,Hübner CA,Jentsch TJ

更新日期：2006-09-12 00:00:00

abstract：:We describe the molecular cloning of various DNA segments generated by partial EcoRI endonuclease digestion of the sex factor F. These segments have been analyzed by agarose gel electrophoresis of EcoRI digests and were arranged in a series of overlapping fragments using the EcoRI fragment map of F established by H. O...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Skurray RA,Nagaishi H,Clark AJ

更新日期：1976-01-01 00:00:00

abstract：:Reversible ligands were attached covalently to membrane-bound acetylcholine receptor from Torpedo marmorata by a method which is generally applicable and does not require the synthesis of specially designed molecules. UV irradiation of the receptor in the presence of [3H]trimethisoquin, [3H]phencyclidine, or [3H]perhy...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Oswald R,Changeux JP

更新日期：1981-06-01 00:00:00

abstract：:Stereotypical patterns of vascular and neuronal networks suggest that specific genetic programs tightly control path determination and, consequently, angiogenesis and axon-guidance mechanisms. Our study focuses on one member of the roundabout family of receptors, which traditionally mediate repulsion from the midline....

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Bedell VM,Yeo SY,Park KW,Chung J,Seth P,Shivalingappa V,Zhao J,Obara T,Sukhatme VP,Drummond IA,Li DY,Ramchandran R

更新日期：2005-05-03 00:00:00

abstract：:We recently reported the hemochromatosis-like phenotype observed in our Usf2 knockout mice. In these mice, as in murine models of hemochromatosis and patients with hereditary hemochromatosis, iron accumulates in parenchymal cells (in particular, liver and pancreas), whereas the reticuloendothelial system is spared fro...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Nicolas G,Bennoun M,Porteu A,Mativet S,Beaumont C,Grandchamp B,Sirito M,Sawadogo M,Kahn A,Vaulont S

更新日期：2002-04-02 00:00:00

abstract：:Glucocorticoids rapidly and completely inhibit intracellular plasminogen activator activity in rat hepatoma cells, as assayed by the solubilization of 125I-labeled fibrin. Experiments in which extracts of dexamethasone-treated cells are mixed with extracts of control cells demonstrate an inhibitor of protease activity...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Seifert SC,Gelehrter TD

更新日期：1978-12-01 00:00:00

abstract：:Zinniol [1,2-bis(hydroxymethyl)-3-methoxy-4-methyl-5-(3-methyl-2-butenyloxy)benzene], a toxin produced by fungi of the Alternaria group, causes symptoms in plants that resemble those induced by the fungi. The phytotoxin binds to carrot protoplasts and isolated membranes in a saturable and reversible manner. Receptor o...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Thuleau P,Graziana A,Rossignol M,Kauss H,Auriol P,Ranjeva R

更新日期：1988-08-01 00:00:00

abstract：:We have isolated a major integral membrane protein from Golgi-derived coatomer-coated vesicles. This 24-kDa protein, p24, defines a family of integral membrane proteins with homologs present in yeast and humans. In addition to sequence similarity, all p24 family members contain a motif with the characteristic heptad r...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Stamnes MA,Craighead MW,Hoe MH,Lampen N,Geromanos S,Tempst P,Rothman JE

更新日期：1995-08-15 00:00:00

abstract：:The intracellular activation of trypsinogen, which is both pH- and calcium-dependent, is an important early step in the development of acute pancreatitis. The cellular compartment in which trypsinogen activation occurs currently is unknown. We therefore investigated the site of intracellular trypsinogen activation by ...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Sherwood MW,Prior IA,Voronina SG,Barrow SL,Woodsmith JD,Gerasimenko OV,Petersen OH,Tepikin AV

更新日期：2007-03-27 00:00:00

abstract：:Experimental intramolecular vibrational dephasing transients for several large organic molecules are reanalyzed. Fits to the experimental data, as well as full numerical quantum calculations with a factorized potential surface for all active degrees of freedom of fluorene indicate that power law decays, not exponentia...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Gruebele M

更新日期：1998-05-26 00:00:00

abstract：:Activation of protein kinase C (PKC) by phorbol ester facilitates hormonal secretion and transmitter release, and phorbol ester-induced synaptic potentiation (PESP) is a model for presynaptic facilitation. A variety of PKC isoforms are expressed in the central nervous system, but the isoform involved in the PESP has n...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Saitoh N,Hori T,Takahashi T

更新日期：2001-11-20 00:00:00

abstract：:Gene regulation is a process with many steps allowing for stochastic biochemical reactions, which leads to expression noise-i.e., the cell-to-cell stochastic fluctuation in protein abundance. Such expression noise can give rise to drastically diverse phenotypes, even within isogenic cell populations. Although numerous...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Li J,Min R,Vizeacoumar FJ,Jin K,Xin X,Zhang Z

更新日期：2010-06-08 00:00:00

abstract：:Obesity is associated with increased risk for developing pancreatic cancer, and it is suggested that insulin resistance provides the missing link. Here we demonstrate that under the context of genetic susceptibility, a high fat diet (HFD) predisposes mice with oncogenic K-ras activation to accelerated pancreatic intra...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Khasawneh J,Schulz MD,Walch A,Rozman J,Hrabe de Angelis M,Klingenspor M,Buck A,Schwaiger M,Saur D,Schmid RM,Klöppel G,Sipos B,Greten FR,Arkan MC

更新日期：2009-03-03 00:00:00

abstract：:Recent advances in metabolic engineering have demonstrated that microbial biosynthesis can provide a viable alternative to chemical synthesis for the production of bulk and fine chemicals. Introduction of a new biosynthetic pathway typically requires the expression of multiple heterologous enzymes in the production ho...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Michener JK,Nielsen J,Smolke CD

更新日期：2012-11-20 00:00:00

abstract：:Avian myelocytomatosis virus (MC29), a defective acute leukemia virus, has a broad oncogenic spectrum in vivo and transforms fibroblasts and hematopoietic target cells in vitro. We have used recombinant DNA technology to isolate and to characterize the sequences that are essential in the transformation process. Integr...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Lautenberger JA,Schulz RA,Garon CF,Tsichlis PN,Papas TS

更新日期：1981-03-01 00:00:00

abstract：:The cytosolic concentration of free Ca2+ in bovine neutrophils was monitored by using the intracellular Ca2+ indicator quin2, 2-[[2-bis(acetylamino)-5-methylphenoxy]methyl-6-methoxy-8- bis(acetylamino)]quinoline. Neutrophils at rest have a cytosolic Ca2+ concentration of 85 +/- 5 nM, which in 2-4 min increases to 300-...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Gennaro R,Pozzan T,Romeo D

更新日期：1984-03-01 00:00:00

abstract：:The self-adjoint algebra of operators generated by the semigroup of translation operators acting on the Hilbert space of functions supported on the half-line is studied. A real-valued index is introduced and is used to determine the spectrum of the Wiener-Hopf integral operators with distribution kernel having an almo...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Coburn LA,Douglas RG

更新日期：1969-04-01 00:00:00

abstract：:Many important hominid-bearing fossil localities in East Africa are in regions that are extremely hot and dry. Although humans are well adapted to such conditions, it has been inferred that East African environments were cooler or more wooded during the Pliocene and Pleistocene when this region was a central stage of ...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Passey BH,Levin NE,Cerling TE,Brown FH,Eiler JM

更新日期：2010-06-22 00:00:00

abstract：:The objective of this study was to determine whether the vascular smooth muscle contractile effect of NG-methyl-L-arginine (NMA) is endothelium dependent and attributed to a decline in smooth muscle levels of cyclic GMP. Vascular smooth muscle levels of cyclic GMP are severalfold greater in endothelium-intact than in ...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Gold ME,Wood KS,Byrns RE,Fukuto J,Ignarro LJ

更新日期：1990-06-01 00:00:00

abstract：:To define the T-cell receptor signal transduction motif, we have transfected human and murine T-cell lines with a chimeric receptor consisting of the extracellular and transmembrane domains of human CD8 alpha and the membrane-proximal portion of CD3 zeta containing at its C terminus either an 18-amino acid segment (NQ...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Koyasu S,Tse AG,Moingeon P,Hussey RE,Mildonian A,Hannisian J,Clayton LK,Reinherz EL

更新日期：1994-07-05 00:00:00

abstract：:The S region of the murine major histocompatibility complex contains two structurally related genes (21-OHase A and 21-OHase B) that encode 21-hydroxylase (21-OHase), an enzyme essential for the synthesis of adrenal steroids. Expression of these two genes has been analyzed by using oligonucleotide probes specific for ...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Parker KL,Chaplin DD,Wong M,Seidman JG,Smith JA,Schimmer BP

更新日期：1985-12-01 00:00:00

abstract：:Ca2+/calmodulin-dependent protein kinase II (CaM-KII) regulates numerous physiological functions, including neuronal synaptic plasticity through the phosphorylation of alpha-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid-type glutamate receptors. To identify proteins that may interact with and modulate CaM-KII fun...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Chang BH,Mukherji S,Soderling TR

更新日期：1998-09-01 00:00:00

abstract：:Pre-mRNA splicing requires the function of a number of RNA-dependent ATPases/helicases, yet no three-dimensional structure of any spliceosomal ATPases/helicases is known. The highly conserved DECD-box protein UAP56/Sub2 is an essential splicing factor that is also important for mRNA export. The expected ATPase/helicas...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Shi H,Cordin O,Minder CM,Linder P,Xu RM

更新日期：2004-12-21 00:00:00

abstract：:A human collagenase inhibitor (CI) of Mr 28,500 has been extensively characterized in skin fibroblasts and identified in a variety of connective tissues. Because human alveolar macrophages synthesize and secrete both a collagenase and CI that are immunologically and functionally identical to their counterparts in fibr...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Bar-Shavit Z,Teitelbaum SL,Stricklin GP,Eisen AZ,Kahn AJ,Welgus HG

更新日期：1985-08-01 00:00:00

abstract：:In recent years, a large body of research has demonstrated that judgments and behaviors can propagate from person to person. Phenomena as diverse as political mobilization, health practices, altruism, and emotional states exhibit similar dynamics of social contagion. The precise mechanisms of judgment propagation are ...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Moussaïd M,Herzog SM,Kämmer JE,Hertwig R

更新日期：2017-04-18 00:00:00

abstract：:Cellular wound healing or the repair of plasma membrane/cell wall damage (plasma membrane damage) occurs frequently in nature. Although various cellular perturbations, such as DNA damage, spindle misalignment, and impaired daughter cell formation, are monitored by cell cycle checkpoint mechanisms in budding yeast, whe...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Kono K,Al-Zain A,Schroeder L,Nakanishi M,Ikui AE

更新日期：2016-06-21 00:00:00

abstract：:Heat-shock factor 1 (HSF1) is the master transcriptional regulator of the cellular response to heat and a wide variety of other stressors. We previously reported that HSF1 promotes the survival and proliferation of malignant cells. At this time, however, the clinical and prognostic significance of HSF1 in cancer is un...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Santagata S,Hu R,Lin NU,Mendillo ML,Collins LC,Hankinson SE,Schnitt SJ,Whitesell L,Tamimi RM,Lindquist S,Ince TA

更新日期：2011-11-08 00:00:00

abstract：:The G12 subfamily of heterotrimeric G proteins, comprised of the alpha-subunits Galpha12 and Galpha13, has been implicated as a signaling component in cellular processes ranging from cytoskeletal changes to cell growth and oncogenesis. In an attempt to elucidate specific roles of this subfamily in cell regulation, we ...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Meigs TE,Fields TA,McKee DD,Casey PJ

更新日期：2001-01-16 00:00:00