Nitric oxide mediates glutamate neurotoxicity in primary cortical cultures.

abstract：:Atmospheric models generally assume that aerosol particles are in equilibrium with the surrounding gas phase. However, recent observations that secondary organic aerosols can exist in a glassy state have highlighted the need to more fully understand the kinetic limitations that may control water partitioning in ambien...

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

authors： Bones DL,Reid JP,Lienhard DM,Krieger UK

更新日期：2012-07-17 00:00:00

abstract：:We analyze the effects of an externally applied electric field on thermal fluctuations for a binary electrolyte fluid. We show that the fluctuating Poisson-Nernst-Planck (PNP) equations for charged multispecies diffusion coupled with the fluctuating fluid momentum equation result in enhanced charge transport via a mec...

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

authors： Péraud JP,Nonaka AJ,Bell JB,Donev A,Garcia AL

更新日期：2017-10-10 00:00:00

abstract：:Arguably the most foundational principle in perception research is that our experience of the world goes beyond the retinal image; we perceive the distal environment itself, not the proximal stimulation it causes. Shape may be the paradigm case of such "unconscious inference": When a coin is rotated in depth, we infer...

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

authors： Morales J,Bax A,Firestone C

更新日期：2020-06-30 00:00:00

abstract：:We have expressed a male-specific, pheromone-sensitive odorant receptor (OR), BmorOR1, from the silkworm moth Bombyx mori in an "empty neuron" housed in the ab3 sensilla of a Drosophila Deltahalo mutant. Single-sensillum recordings showed that the BmorOR1-expressing neurons in the transgenic flies responded to the B. ...

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

authors： Syed Z,Ishida Y,Taylor K,Kimbrell DA,Leal WS

更新日期：2006-10-31 00:00:00

abstract：:A major part of the present understanding of the molecular basis of signal transduction has been gained from in vitro studies using classical biochemical methods. In this study, we used 31P NMR spectroscopy to investigate the response of live M2R mouse melanoma cells to stimulation by melanocyte-stimulating hormone (M...

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

authors： Degani H,DeJordy JO,Salomon Y

更新日期：1991-02-15 00:00:00

abstract：:The F-box represents a protein motif originally identified as a conserved amino-terminal domain within the Neurospora crassa negative regulator sulfur controller-2. Recently, F-boxes have been found within a number of cell cycle regulatory proteins, where they mediate ubiquitin-driven proteolytic events required for m...

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

authors： Kumar A,Paietta JV

更新日期：1998-03-03 00:00:00

abstract：:We have identified a major T-cell epitope, amino acids 48-54 (DRAHYNI, in one-letter code) in the E7 open reading frame protein of human papillomavirus (HPV) type 16. Lymph node cells from mice immunized with synthetic peptides containing DRAHYNI proliferated and produced interleukin when challenged in vitro with pept...

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

authors： Tindle RW,Fernando GJ,Sterling JC,Frazer IH

更新日期：1991-07-01 00:00:00

abstract：:Intracellular recordings were obtained from vagal neurons and their response to oxytocin was investigated in slices from the rat and the guinea pig brainstem. After recording, Lucifer yellow was injected into the cells to verify their localization within the dorsal motor nucleus of the vagus nerve (dmnX). In the rat, ...

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

authors： Raggenbass M,Dubois-Dauphin M,Charpak S,Dreifuss JJ

更新日期：1987-06-01 00:00:00

abstract：:Transcriptional interference between genes and the regulatory elements of simple eukaryotes such as Saccharomyces cerevisiae is an unavoidable consequence of their compressed genetic arrangement. We have shown previously that with the tandem arranged genes GAL10 and GAL7, inefficient transcriptional termination of the...

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

authors： Prescott EM,Proudfoot NJ

更新日期：2002-06-25 00:00:00

abstract：:Most paleo-episodes of ocean acidification (OA) were either too slow or too small to be instructive in predicting near-future impacts. The end-Cretaceous event (66 Mya) is intriguing in this regard, both because of its rapid onset and also because many pelagic calcifying species (including 100% of ammonites and more t...

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

authors： Tyrrell T,Merico A,Armstrong McKay DI

更新日期：2015-05-26 00:00:00

abstract：:Dopaminergic and glutamatergic neurotransmissions in the striatum play an essential role in motor- and reward-related behaviors. Dysfunction of these neurotransmitter systems has been found in Parkinson's disease, schizophrenia, and drug addiction. Cyclin-dependent kinase 5 (CDK5) negatively regulates postsynaptic sig...

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

authors： Chergui K,Svenningsson P,Greengard P

更新日期：2004-02-17 00:00:00

abstract：:In the present work, we investigated the role of natural killer (NK) cells in combination therapy with oncolytic virus (OV) and bortezomib, a proteasome inhibitor. NK cells display rapid and potent immunity to metastatic and hematological cancers, and they overcome immunosuppressive effects of tumor microenvironment. ...

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

authors： Kim Y,Yoo JY,Lee TJ,Liu J,Yu J,Caligiuri MA,Kaur B,Friedman A

更新日期：2018-05-08 00:00:00

abstract：:Establishment, specification, and validation of synaptic connections are thought to be mediated by interactions between pre- and postsynaptic cell-adhesion molecules. Arguably, the best-characterized transsynaptic interactions are formed by presynaptic neurexins, which bind to diverse postsynaptic ligands. In a proteo...

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

authors： Sterky FH,Trotter JH,Lee SJ,Recktenwald CV,Du X,Zhou B,Zhou P,Schwenk J,Fakler B,Südhof TC

更新日期：2017-02-14 00:00:00

abstract：:Radiation dose rates were evaluated in three areas neighboring a restricted area within a 20- to 50-km radius of the Fukushima Daiichi Nuclear Power Plant in August-September 2012 and projected to 2022 and 2062. Study participants wore personal dosimeters measuring external dose equivalents, almost entirely from depos...

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

authors： Harada KH,Niisoe T,Imanaka M,Takahashi T,Amako K,Fujii Y,Kanameishi M,Ohse K,Nakai Y,Nishikawa T,Saito Y,Sakamoto H,Ueyama K,Hisaki K,Ohara E,Inoue T,Yamamoto K,Matsuoka Y,Ohata H,Toshima K,Okada A,Sato H,Kuwa

更新日期：2014-03-11 00:00:00

abstract：:Physical biochemical techniques are used to establish the structure, subunit stoichiometry, and assembly pathway of the primosome complex of the bacteriophage T4 DNA replication system. Analytical ultracentrifugation and fluorescence anisotropy methods show that the functional T4 primosome consists of six gp41 helicas...

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

authors： Jose D,Weitzel SE,Jing D,von Hippel PH

更新日期：2012-08-21 00:00:00

abstract：:In the normal development of retinotectal connections, the site in the tectum at which an optic fiber synapses is related to the position of its ganglion-cell body in the retina. How and when the ganglion cells acquire information about their positions is unknown, but the positional information that each ganglion cell...

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

authors： Hunt RK,Jacobson M

更新日期：1972-10-01 00:00:00

abstract：:Visual information is conveyed from the eye to the brain by distinct types of retinal ganglion cells (RGCs). It is largely unknown how RGCs acquire their defining morphological and physiological features and connect to upstream and downstream synaptic partners. The three Brn3/Pou4f transcription factors (TFs) particip...

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

authors： Sajgo S,Ghinia MG,Brooks M,Kretschmer F,Chuang K,Hiriyanna S,Wu Z,Popescu O,Badea TC

更新日期：2017-05-16 00:00:00

abstract：:Interleukin 16 (IL-16) is a chemotactic cytokine that binds to the CD4 receptor and affects the activation of T cells and replication of HIV. It is expressed as a large 67-kDa precursor protein (pro-IL-16) in lymphocytes, macrophages, and mast cells, as well as in airway epithelial cells from asthmatics after challeng...

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

authors： Bannert N,Avots A,Baier M,Serfling E,Kurth R

更新日期：1999-02-16 00:00:00

abstract：:Increases in cytoplasmic free calcium ([Ca2+]i) can be induced in resting B cells either by a low molecular weight (12-kDa) B-cell growth factor (LMW-BCGF) or by crosslinking the B-cell antigen CD19 with monoclonal antibody (mAb). LMW-BCGF causes a slow [Ca2+]i increase in peripheral blood and tonsillar B cells but ha...

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

authors： Ledbetter JA,Rabinovitch PS,June CH,Song CW,Clark EA,Uckun FM

更新日期：1988-03-01 00:00:00

abstract：:The exceptional sensitivity of Mycobacterium tuberculosis to isonicotinic acid hydrazide (INH) lacks satisfactory definition. M. tuberculosis is a natural mutant in oxyR, a central regulator of peroxide stress response. The ahpC gene, which encodes a critical subunit of alkyl hydroperoxide reductase, is one of the tar...

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

authors： Zhang Y,Dhandayuthapani S,Deretic V

更新日期：1996-11-12 00:00:00

abstract：:Elucidation of the genetic control of rice architecture is crucial due to the global demand for high crop yields. Rice architecture is a complex trait affected by plant height, tillering, and panicle morphology. In this study, principal component analysis (PCA) on 8 typical traits related to plant architecture reveale...

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

authors： Yano K,Morinaka Y,Wang F,Huang P,Takehara S,Hirai T,Ito A,Koketsu E,Kawamura M,Kotake K,Yoshida S,Endo M,Tamiya G,Kitano H,Ueguchi-Tanaka M,Hirano K,Matsuoka M

更新日期：2019-10-15 00:00:00

abstract：:The NIFA protein of Klebsiella pneumoniae is required for transcription of all nif (nitrogen fixation) operons except the regulatory nifLA operon itself. NIFA activates transcription of nif operons by the alternative holoenzyme form of RNA polymerase, sigma 54-holoenzyme, in a nucleoside triphosphate (NTP)-dependent m...

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

authors： Berger DK,Narberhaus F,Kustu S

更新日期：1994-01-04 00:00:00

abstract：:A human craniofacial cDNA library was screened with a degenerate oligonucleotide probe based on the conserved third helix of homeobox genes. From this screening, we identified a homeobox gene, H6, which shared only 57-65% amino acid identity to previously reported homeodomains. H6 was physically mapped to the 4p16.1 r...

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

authors： Stadler HS,Padanilam BJ,Buetow K,Murray JC,Solursh M

更新日期：1992-12-01 00:00:00

abstract：:Murine erythroleukemia cells (MELC) are transformed cells that can be induced to differentiate by a variety of agents, such as hexamethylenebisacetamide (HMBA) and dimethyl sulfoxide. Dexamethasone suppresses HMBA-mediated MELC differentiation, but MELC retain a memory for their exposure to HMBA since, on transfer fro...

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

authors： Murate T,Kaneda T,Rifkind RA,Marks PA

更新日期：1984-06-01 00:00:00

abstract：:Fanconi anemia (FA) is caused by defects in cellular responses to DNA crosslinking damage and replication stress. Given the constant occurrence of endogenous DNA damage and replication fork stress, it is unclear why complete deletion of FA genes does not have a major impact on cell proliferation and germ-line FA patie...

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

authors： Wang R,Lenoir WF,Wang C,Su D,McLaughlin M,Hu Q,Shen X,Tian Y,Klages-Mundt N,Lynn E,Wood RD,Chen J,Hart T,Li L

更新日期：2020-12-29 00:00:00

abstract：:A great deal is known about the export of spliced mRNAs, but little is known about the export of mRNAs encoded by human cellular genes that naturally lack introns. Here, we investigated the requirements for export of three naturally intronless mRNAs (HSPB3, IFN-α1, and IFN-β1). Significantly, we found that all three m...

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

authors： Lei H,Dias AP,Reed R

更新日期：2011-11-01 00:00:00

abstract：:The binding of interferons to distinct cell surface receptors leads to the induction of synthesis of several unique polypeptides and their corresponding mRNAs (1-6). We have isolated two cDNAs that are complementary to nuclear RNA whose synthesis is induced from undetectable levels to maximal rates of transcription wi...

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

authors： Larner AC,Jonak G,Cheng YS,Korant B,Knight E,Darnell JE Jr

更新日期：1984-11-01 00:00:00

abstract：:In this study we report the X-ray crystal structure of the extracellular domain (ECD) of the human neuronal α2 nicotinic acetylcholine receptor (nAChR) subunit in complex with the agonist epibatidine at 3.2 Å. Interestingly, α2 was crystallized as a pentamer, revealing the intersubunit interactions in a wild type neur...

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

authors： Kouvatsos N,Giastas P,Chroni-Tzartou D,Poulopoulou C,Tzartos SJ

更新日期：2016-08-23 00:00:00

abstract：:We have previously observed the spontaneous, pH-dependent insertion of a water-soluble peptide to form a helix across lipid bilayers [Hunt, J. F., Rath, P., Rothschild, K. J. & Engelman, D. M. (1997) Biochemistry 36, 15177-15192]. We now use a related peptide, pH (low) insertion peptide, to translocate cargo molecules...

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

authors： Reshetnyak YK,Andreev OA,Lehnert U,Engelman DM

更新日期：2006-04-25 00:00:00

abstract：:Decision-makers increasingly seek scientific guidance on investing in nature, but biodiversity remains difficult to estimate across diverse landscapes. Here, we develop empirically based models for quantifying biodiversity across space. We focus on agricultural lands in the tropical forest biome, wherein lies the grea...

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

authors： Mendenhall CD,Shields-Estrada A,Krishnaswami AJ,Daily GC

更新日期：2016-12-20 00:00:00