Evidence of tectorial membrane radial motion in a propagating mode of a complex cochlear model.

abstract：:The phosphorylation of diacylglycerol (DG), a reaction catalyzed by DG kinase, may be critical in the termination of effector-induced signals mediated by protein kinase C. Synapsin I is a principal target of intracellular protein kinases and is thought to be involved in the release of neurotransmitter from axon termin...

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

authors： Kahn DW,Besterman JM

更新日期：1991-07-15 00:00:00

abstract：:Increased plasminogen-activator inhibitor 1 (PAI-1) activity is a common finding in patients with coronary heart disease. Here we provide evidence for an independent, etiological role of PAI-1 in myocardial infarction. The 4G allele of a recently described common 4/5-guanine-tract (4G/5G) polymorphism in the PAI-1 pro...

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

authors： Eriksson P,Kallin B,van 't Hooft FM,Båvenholm P,Hamsten A

更新日期：1995-03-14 00:00:00

abstract：:Mathematical models have been developed to explore the population dynamics of viral diseases among wildlife. However, assessing the predictions stemming from these models with wildlife databases adequate in size and temporal duration is uncommon. An epizootic of raccoon rabies that began in the mid-Atlantic region of ...

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

authors： Childs JE,Curns AT,Dey ME,Real LA,Feinstein L,Bjørnstad ON,Krebs JW

更新日期：2000-12-05 00:00:00

abstract：:Earlier work has shown that mitochondrial proteins synthesized in the cytosol are initially made as larger precursors which are then transferred into the organelles and processed to their mature size in the absence of protein synthesis. It is now demonstrated that depletion of the mitochondrial matrix ATP in intact ye...

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

authors： Nelson N,Schatz G

更新日期：1979-09-01 00:00:00

abstract：:We assess the significance of high-frequency variability of environmental parameters (sunlight, precipitation, temperature) for the structure and function of terrestrial ecosystems under current and future climate. We examine the influence of hourly, daily, and monthly variance using the Ecosystem Demography model ver...

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

authors： Medvigy D,Wofsy SC,Munger JW,Moorcroft PR

更新日期：2010-05-04 00:00:00

abstract：:Messenger RNA from rat liver was partially purified by chromatography on cellulose on the basis of its poly(A) content. Microgram amounts of this RNA stimulate protein synthesis manyfold in a heterologous cell-free system, derived from Krebs ascites cells supplemented with reticulocyte initiation factors. The messenge...

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

authors： Schutz G,Beato M,Feigelson P

更新日期：1973-04-01 00:00:00

abstract：:The role of missense changes in BRCA1 in breast cancer susceptibility has been difficult to establish. We used comparative evolutionary methods to identify potential functionally important amino acid sites in exon 11 and missense changes likely to disrupt gene function, aligning sequences from 57 eutherian mammals and...

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

authors： Fleming MA,Potter JD,Ramirez CJ,Ostrander GK,Ostrander EA

更新日期：2003-02-04 00:00:00

abstract：:The oxidative capacity of cat skeletal muscles (soleus, gracilis, and gracilis chronically stimulated for 28 days) was derived from the total mitochondrial content in the muscle, the surface area of mitochondrial inner membranes, and respiratory activities of isolated mitochondria. Mitochondrial content was estimated ...

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

authors： Schwerzmann K,Hoppeler H,Kayar SR,Weibel ER

更新日期：1989-03-01 00:00:00

abstract：:The electrical currents at the surface of the proximal portion of an isolated and transected lamprey spinal cord were measured with an extracellular vibrating probe. Soon after transection, currents of about 0.5 mA/cm2 enter the cut surface of the spinal cord. These currents fall to about a quarter of their initial va...

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

authors： Borgens RB,Jaffe LF,Cohen MJ

更新日期：1980-02-01 00:00:00

abstract：:Covalently cross-linked pilus polymers displayed on the cell surface of Gram-positive bacteria are assembled by class C sortase enzymes. These pilus-specific transpeptidases located on the bacterial membrane catalyze a two-step protein ligation reaction, first cleaving the LPXTG motif of one pilin protomer to form an ...

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

authors： Chang C,Amer BR,Osipiuk J,McConnell SA,Huang IH,Hsieh V,Fu J,Nguyen HH,Muroski J,Flores E,Ogorzalek Loo RR,Loo JA,Putkey JA,Joachimiak A,Das A,Clubb RT,Ton-That H

更新日期：2018-06-12 00:00:00

abstract：:We show that a large class of finite factors has free entropy dimension less than or equal to one. This class includes all prime factors and many property T factors. ...

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

authors： Ge L,Shen J

更新日期：2000-08-29 00:00:00

abstract：:Two pools of heparan sulfate proteoglycans have been selectively solubilized from rat liver plasma membranes by successive incubations with heparin and detergent. The two populations of proteoglycans have similar polyanionic properties as indicated by identical elution positions on ion-exchange chromatography on DEAE-...

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

authors： Kjellén L,Pettersson I,Höök M

更新日期：1981-09-01 00:00:00

abstract：:High-throughput biological data, whether generated as sequencing, transcriptional microarrays, proteomic, or other means, continues to require analytic methods that address its high dimensional aspects. Because the computational part of data analysis ultimately identifies shape characteristics in the organization of d...

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

authors： Nicolau M,Levine AJ,Carlsson G

更新日期：2011-04-26 00:00:00

abstract：:Recent theoretical and experimental results point to the existence of small barriers to protein folding. These barriers can even be absent altogether, resulting in a continuous folding transition (i.e., downhill folding). With small barriers, the detailed properties of folding ensembles may become accessible to equili...

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

authors： Muñoz V,Sanchez-Ruiz JM

更新日期：2004-12-21 00:00:00

abstract：:We have used (13C)-1H NMR spectroscopy at 360.13 MHz to resolve the 13C coupled proton resonance of glutamate and lactate in the rat brain in vivo. The time required for the 13C fractional enrichment of the 4-CH2 position of brain glutamate to reach isotopic steady state was determined during a continuous infusion of ...

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

authors： Rothman DL,Behar KL,Hetherington HP,den Hollander JA,Bendall MR,Petroff OA,Shulman RG

更新日期：1985-03-01 00:00:00

abstract：:In both randomly moving Dictyostelium and mammalian cells, phosphatidylinositol (3,4,5)-trisphosphate and F-actin are known to propagate as waves at the membrane and act to push out the protruding edge. To date, however, the relationship between the wave geometry and the patterns of amoeboid shape change remains elusi...

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

authors： Taniguchi D,Ishihara S,Oonuki T,Honda-Kitahara M,Kaneko K,Sawai S

更新日期：2013-03-26 00:00:00

abstract：:The inhibitory neurotransmitter gamma-aminobutyric acid (GABA) is involved in the generation of various brain rhythmic activities that can be modulated by benzodiazepines. Here, we assessed the contribution of alpha(2)GABA type A (GABA(A)) receptors to the effects of benzodiazepines on sleep and waking oscillatory pat...

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

authors： Kopp C,Rudolph U,Löw K,Tobler I

更新日期：2004-03-09 00:00:00

abstract：:The complete coding region of maize transposable element Ac and truncated but active derivatives of it were placed under the control of promoters of different strength and tested for the ability to excise transposable element Ds from a beta-glucuronidase reporter gene in a cotransfection assay in Petunia protoplasts. ...

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

authors： Becker D,Lütticke R,Li M,Starlinger P

更新日期：1992-06-15 00:00:00

abstract：:T helper (Th) lymphocytes can develop memory for the expression of particular cytokines, like IL-4 or IL-10, in that reexpression of those cytokines is independent of the original costimulatory signal IL-4 and depends only on T cell receptor stimulation. Here, we show that in the course of Th2 cell differentiation in ...

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

authors： Löhning M,Richter A,Stamm T,Hu-Li J,Assenmacher M,Paul WE,Radbruch A

更新日期：2003-10-14 00:00:00

abstract：:There is currently no consensus on the importance of climate change in Mesoamerican prehistory. Some invoke drought as a causal factor in major cultural transitions, including the abandonment of many sites at 900 CE, while others conclude that cultural factors were more important. This lack of agreement reflects the f...

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

authors： Bhattacharya T,Byrne R,Böhnel H,Wogau K,Kienel U,Ingram BL,Zimmerman S

更新日期：2015-02-10 00:00:00

abstract：:RNA-dependent RNA polymerases (RdRps) of the Nidovirales (Coronaviridae, Arteriviridae, and 12 other families) are linked to an amino-terminal (N-terminal) domain, called NiRAN, in a nonstructural protein (nsp) that is released from polyprotein 1ab by the viral main protease (Mpro). Previously, self-GMPylation/UMPylat...

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

authors： Slanina H,Madhugiri R,Bylapudi G,Schultheiß K,Karl N,Gulyaeva A,Gorbalenya AE,Linne U,Ziebuhr J

更新日期：2021-02-09 00:00:00

abstract：:The small-component origins of herpes simplex virus 1 DNA synthesis are transcribed late in infection by an RNA with heterogeneous initiation sites approximately 290-360 base pairs from the origins. We report that cellular proteins react with a labeled RNA probe representing the 5' terminus of a subset of this RNA but...

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

authors： Roller RJ,McCormick AL,Roizman B

更新日期：1989-09-01 00:00:00

abstract：:Maintenance of genomic stability is essential for normal organismal development and is vital to prevent diseases such as cancer. As genetic information is packaged into chromatin, it has become increasingly clear that the chromatin environment plays an important role in DNA damage response. However, how DNA repair is ...

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

authors： Li X,Liu L,Yang S,Song N,Zhou X,Gao J,Yu N,Shan L,Wang Q,Liang J,Xuan C,Wang Y,Shang Y,Shi L

更新日期：2014-05-13 00:00:00

abstract：:Photoactivation of the retinal photoreceptor rhodopsin proceeds through a cascade of intermediates, resulting in protein-protein interactions catalyzing the activation of the G-protein transducin (Gt). Using stabilization and photoregeneration of the receptor's signaling state and Gt activation assays, we provide evid...

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

authors： Kisselev OG,Meyer CK,Heck M,Ernst OP,Hofmann KP

更新日期：1999-04-27 00:00:00

abstract：:Therapeutic cancer vaccines can be effective for treating patients, but clinical responses vary considerably from patient to patient. Early indicators of a favorable response are crucial for making individualized treatment decisions and advancing vaccine design, but no validated biomarkers are currently available. In ...

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

authors： Campbell CT,Gulley JL,Oyelaran O,Hodge JW,Schlom J,Gildersleeve JC

更新日期：2014-04-29 00:00:00

abstract：:KRAS mutant tumors are largely recalcitrant to targeted therapies. Genetically engineered mouse models (GEMMs) of Kras mutant cancer recapitulate critical aspects of this disease and are widely used for preclinical validation of targets and therapies. Through comprehensive profiling of exomes and matched transcriptome...

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

authors： Chung WJ,Daemen A,Cheng JH,Long JE,Cooper JE,Wang BE,Tran C,Singh M,Gnad F,Modrusan Z,Foreman O,Junttila MR

更新日期：2017-12-19 00:00:00

abstract：:Antibodies directed against a synthetic peptide (src-c) containing the six carboxyl-terminal amino acids of p60src, the transforming protein of Rous sarcoma virus, recognize p60src. However, when used at sufficiently high concentrations they also react with a number of constituents of untransformed cells. These reacti...

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

authors： Nigg EA,Walter G,Singer SJ

更新日期：1982-10-01 00:00:00

abstract：:Arabidopsis has been popular as a model plant system for decades. Completion of the Arabidopsis genome and the availability of large expressed sequence-tag collections from other dicot species provides an opportunity to assess gene content in Arabidopsis, specifically by identifying genes from dicot test species that ...

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

authors： Allen KD

更新日期：2002-07-09 00:00:00

abstract：:In contrast to the immunosuppressive potential of UVB (280-320 nm) radiation in experimental animals and humans, UVA (320-400 nm) radiation at environmentally relevant doses appears to be immunologically inert. However, such exposure to UVA radiation has been observed unexpectedly to induce resistance to UVB-induced i...

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

authors： Reeve VE,Tyrrell RM

更新日期：1999-08-03 00:00:00

abstract：:Elucidation of the molecular details of the cyclic actomyosin interaction requires the ability to examine structural changes at specific sites in the actin-binding interface of myosin. To study these changes dynamically, we have expressed two mutants of a truncated fragment of chicken gizzard smooth muscle myosin, whi...

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

authors： Yengo CM,Fagnant PM,Chrin L,Rovner AS,Berger CL

更新日期：1998-10-27 00:00:00