Inhibition of tissue damage by the arachidonate lipoxygenase inhibitor BW755C.

abstract：:MuB is an ATP-dependent nonspecific DNA-binding protein that regulates the activity of the MuA transposase and captures target DNA for transposition. Mechanistic understanding of MuB function has previously been hindered by MuB's poor solubility. Here we combine bioinformatic, mutagenic, biochemical, and electron micr...

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

authors： Mizuno N,Dramićanin M,Mizuuchi M,Adam J,Wang Y,Han YW,Yang W,Steven AC,Mizuuchi K,Ramón-Maiques S

更新日期：2013-07-02 00:00:00

abstract：:Memory is stored in neural networks via changes in synaptic strength mediated in part by NMDA receptor (NMDAR)-dependent long-term potentiation (LTP). Here we show that a cholecystokinin (CCK)-B receptor (CCKBR) antagonist blocks high-frequency stimulation-induced neocortical LTP, whereas local infusion of CCK induces...

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

authors： Chen X,Li X,Wong YT,Zheng X,Wang H,Peng Y,Feng H,Feng J,Baibado JT,Jesky R,Wang Z,Xie H,Sun W,Zhang Z,Zhang X,He L,Zhang N,Zhang Z,Tang P,Su J,Hu LL,Liu Q,He X,Tan A,Sun X,Li M,Wong K,Wang X,Cheung

更新日期：2019-03-26 00:00:00

abstract：:African sleeping sickness is a fatal disease that is caused by the protozoan parasite Trypanosoma brucei. Polyamine biosynthesis is an essential pathway in the parasite and is a validated drug target for treatment of the disease. S-adenosylmethionine decarboxylase (AdoMetDC) catalyzes a key step in polyamine biosynthe...

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

authors： Willert EK,Fitzpatrick R,Phillips MA

更新日期：2007-05-15 00:00:00

abstract：:The mammalian form of the protozoan parasite Leishmania mexicana contains high activity of a cysteine proteinase (LmCPb) encoded on a tandem array of 19 genes (lmcpb). Homozygous null mutants for lmcpb have been produced by targeted gene disruption. All life-cycle stages of the mutant can be cultured in vitro, demonst...

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

authors： Mottram JC,Souza AE,Hutchison JE,Carter R,Frame MJ,Coombs GH

更新日期：1996-06-11 00:00:00

abstract：:The mechanisms regulating clonal expansion and contraction of T cells in response to immunization remain to be identified. A recent study established that there was a log-linear relation between CD4 T-cell precursor number (PN) and factor of expansion (FE), with a slope of ∼-0.5 over a range of 3-30,000 precursors per...

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

authors： Bocharov G,Quiel J,Luzyanina T,Alon H,Chiglintsev E,Chereshnev V,Meier-Schellersheim M,Paul WE,Grossman Z

更新日期：2011-02-22 00:00:00

abstract：:Aged rats, displaying impairments in spatial learning and memory associated with marked cellular atrophy of forebrain cholinergic neurons, received intracerebroventricular infusions of one of the four neurotrophins nerve growth factor (NGF), brain-derived neurotrophic factor (BDNF), neurotrophin 3 (NT-3), or neurotrop...

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

authors： Fischer W,Sirevaag A,Wiegand SJ,Lindsay RM,Björklund A

更新日期：1994-08-30 00:00:00

abstract：:Neurons in the cochlear nuclei of duck embryos become responsive to tonal stimuli in an orderly spatial and temporal sequence. Cells responding to lower frequencies are recorded before those responding to higher frequencies. Auditory neurons are spatially arranged according to their characteristic frequencies, indicat...

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

authors： Konishi M

更新日期：1973-06-01 00:00:00

abstract：:Efficient single nucleotide polymorphism (SNP) genotyping methods are necessary to accomplish many current gene discovery goals. A crucial element in large-scale SNP genotyping is the number of individual biochemical reactions that must be performed. An efficient method that can be used to simultaneously amplify a set...

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

authors： Jordan B,Charest A,Dowd JF,Blumenstiel JP,Yeh Rf RF,Osman A,Housman DE,Landers JE

更新日期：2002-03-05 00:00:00

abstract：:The Tap protein mediates the sequence nonspecific nuclear export of cellular mRNAs as well as the sequence-specific export of retroviral mRNAs bearing the constitutive transport element (CTE). Previously, the structures of individual Tap subdomains, including ribonucleoprotein and leucine-rich repeat domains, have bee...

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

authors： Ho DN,Coburn GA,Kang Y,Cullen BR,Georgiadis MM

更新日期：2002-02-19 00:00:00

abstract：:Using [3H]quinuclidinyl benzilate as a specific cholinergic muscarinic ligand, it has been demonstrated that lymphocytes have muscarinic binding sites. There are approximately 200 sites per cell and the dissociation constant for quinuclidinyl benzilate is approximately 1 X 10(-9) M. Quinuclidinyl benzilate receptor bi...

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

authors： Gordon MA,Cohen JJ,Wilson IB

更新日期：1978-06-01 00:00:00

abstract：:Antigenic markers associated with the major internal protein of RNA tumor viruses of the C-type have proven extremely useful in natural history studies of these viruses. This protein possesses species-specific antigenic determinants, and, in the case of mammalian C-type viruses, the protein possesses crossreactive det...

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

authors： Gilden RV,Oroszlan S

更新日期：1972-04-01 00:00:00

abstract：:We have noted consistent structural similarities among unrelated proteases. In comparison with other proteins of similar size, proteases have smaller than average surface areas, smaller radii of gyration, and higher C(alpha) densities. These findings imply that proteases are, as a group, more tightly packed than other...

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

authors： Stawiski EW,Baucom AE,Lohr SC,Gregoret LM

更新日期：2000-04-11 00:00:00

abstract：:Listeria monocytogenes is an intracellular parasite that can readily infect the macrophage-like cell line J774 and the kidney epithelial cell PtK2. After being ingested, the organism escapes from the phagolysosome into the host-cell cytoplasm. N-(7-Nitrobenz-2-oxa-1,3-diazol-4-yl)-phallacidin, a specific stain for act...

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

authors： Dabiri GA,Sanger JM,Portnoy DA,Southwick FS

更新日期：1990-08-01 00:00:00

abstract：:Through rapid genetic adaptation and natural selection, the Plasmodium falciparum parasite--the deadliest of those that cause malaria--is able to develop resistance to antimalarial drugs, thwarting present efforts to control it. Genome-wide association studies (GWAS) provide a critical hypothesis-generating tool for u...

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

authors： Park DJ,Lukens AK,Neafsey DE,Schaffner SF,Chang HH,Valim C,Ribacke U,Van Tyne D,Galinsky K,Galligan M,Becker JS,Ndiaye D,Mboup S,Wiegand RC,Hartl DL,Sabeti PC,Wirth DF,Volkman SK

更新日期：2012-08-07 00:00:00

abstract：:Imaging membranes in live cells with nanometer-scale resolution promises to reveal ultrastructural dynamics of organelles that are essential for cellular functions. In this work, we identified photoswitchable membrane probes and obtained super-resolution fluorescence images of cellular membranes. We demonstrated the p...

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

authors： Shim SH,Xia C,Zhong G,Babcock HP,Vaughan JC,Huang B,Wang X,Xu C,Bi GQ,Zhuang X

更新日期：2012-08-28 00:00:00

abstract：:Two-dimensional gel electrophoresis has allowed the detection of proteins characteristic of inner cell mass and trophectoderm in mouse blastocyst. Certain of the proteins characterizing trophectoderm copurify with intermediate filaments from trophectoderm and a trophoblastoma cell line. A monoclonal antibody prepared ...

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

authors： Brûlet P,Babinet C,Kemler R,Jacob F

更新日期：1980-07-01 00:00:00

abstract：:A method is described in which the interference of radiated second-harmonic electric fields generated by a pair of oriented molecules intercalated into double-stranded DNA is controlled and measured. The results show that the relative molecular orientation of the two molecules significantly changes the magnitude of th...

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

authors： Doughty B,Rao Y,Kazer SW,Kwok SJ,Turro NJ,Eisenthal KB

更新日期：2013-04-09 00:00:00

abstract：:We have used electron microscopy to examine freshly isolated Salmonella typhimurium and Escherichia coli basal flagellar fragments, purified without resort to extremes of pH or ionic strength. Such fragments contain the large bell-like basal structures visualized recently in freeze-substituted or fixed preparations. W...

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

authors： Khan IH,Reese TS,Khan S

更新日期：1992-07-01 00:00:00

abstract：:We find that the transcription of various ribosomal proteins can be differentially affected by polyamines and by changes in growth rates. Using strain MG1655 of Escherichia coli K-12 (F-, lambda-), we have determined the effects of polyamines and changes in growth rate on the transcription of several ribosomal genes a...

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

authors： Huang SC,Panagiotidis CA,Canellakis ES

更新日期：1990-05-01 00:00:00

abstract：:The genomes of hyperthermophilic Archaea encode dozens of methylation guide, C/D box small RNAs that guide 2'-O-methylation of ribose to specific sites in rRNA and various tRNAs. The genes encoding the Sulfolobus homologues of eukaryotic proteins that are known to be present in C/D box small nucleolar ribonucleoprotei...

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

authors： Omer AD,Ziesche S,Ebhardt H,Dennis PP

更新日期：2002-04-16 00:00:00

abstract：:The nucleotide and predicted amino acid sequences of two variant cDNAs [rat brain thyroid hormone receptor (rTR alpha) vI and vII], isolated from a rat brain cDNA library by using the Pst I fragment of v-erbA, showed virtual identity with the rat brain thyroid hormone receptor (rTR alpha) [Thompson, C. C., Weinberger,...

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

authors： Mitsuhashi T,Tennyson GE,Nikodem VM

更新日期：1988-08-01 00:00:00

abstract：:Ho endonuclease of Saccharomyces cerevisiae is a homing endonuclease that makes a site-specific double-strand break in the MAT gene in late G(1). Here we show that Ho is rapidly degraded via the ubiquitin-26S proteasome system through two ubiquitin-conjugating enzymes UBC2(Rad6) and UBC3(Cdc34). UBC2(Rad6) is complexe...

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

authors： Kaplun L,Ivantsiv Y,Kornitzer D,Raveh D

更新日期：2000-08-29 00:00:00

abstract：:We have previously extracted a protein from inflammatory mouse granuloma that fully protects normal mice against lethal Listeria monocytogenes infection. We now report that polyclonal antibodies directed against this protein react with a human urinary fraction that also provides full protection of normal mice against ...

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

authors： Fontan E,Saklani-Jusforgues H,Fauve RM

更新日期：1992-05-15 00:00:00

abstract：:Synaptic loss is the cardinal feature linking neuropathology to cognitive decline in Alzheimer's disease (AD). However, the mechanism of synaptic damage remains incompletely understood. Here, using FRET-based glutamate sensor imaging, we show that amyloid-β peptide (Aβ) engages α7 nicotinic acetylcholine receptors to ...

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

authors： Talantova M,Sanz-Blasco S,Zhang X,Xia P,Akhtar MW,Okamoto S,Dziewczapolski G,Nakamura T,Cao G,Pratt AE,Kang YJ,Tu S,Molokanova E,McKercher SR,Hires SA,Sason H,Stouffer DG,Buczynski MW,Solomon JP,Michael S,Powers E

更新日期：2013-07-02 00:00:00

abstract：:Previous work on perceptual decision making in the sensorimotor system has shown population dynamics in the beta band, corresponding to the encoding of stimulus properties and the final decision outcome. Here, we asked how oscillatory dynamics in the medial premotor cortex (MPC) contribute to supramodal perceptual dec...

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

authors： Haegens S,Vergara J,Rossi-Pool R,Lemus L,Romo R

更新日期：2017-12-26 00:00:00

abstract：:In this report we examine the effects of chronic anaerobic exposure and subsequent reoxygenation on protein synthesis patterns in Chinese hamster ovary cells. It is observed by two-dimensional gel electrophoresis (isoelectric focusing/NaDodSO4/PAGE) that the transition from an atmospheric environment to an anaerobic s...

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

authors： Sciandra JJ,Subjeck JR,Hughes CS

更新日期：1984-08-01 00:00:00

abstract：:Friend murine leukemia virus (F-MuLV) is a replication-competent retrovirus that induces a rapidly fetal leukemia in susceptible mice (stage I disease). Leukemia cells obtained from these animals do not grow in cell culture using standard tissue culture conditions. However, in the presence of WEHI-3 cell-conditioned m...

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

authors： Oliff A,Oliff I,Schmidt B,Famulari N

更新日期：1984-09-01 00:00:00

abstract：:Soluble N-ethylmaleimide-sensitive fusion protein attachment protein receptor (SNARE) protein interactions at the synaptic vesicle/plasma membrane interface play an essential role in neurotransmitter release. The membrane-proximal region (amino acids 77-90) of the v-SNARE vesicle-associated membrane protein 2 (VAMP 2,...

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

authors： de Haro L,Ferracci G,Opi S,Iborra C,Quetglas S,Miquelis R,Lévêque C,Seagar M

更新日期：2004-02-10 00:00:00

abstract：:Polymorphism in materials often leads to significantly different physical properties--the rutile and anatase polymorphs of TiO2 are a prime example. Polytypism is a special type of polymorphism, occurring in layered materials when the geometry of a repeating structural layer is maintained but the layer-stacking sequen...

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

authors： Luo H,Xie W,Tao J,Inoue H,Gyenis A,Krizan JW,Yazdani A,Zhu Y,Cava RJ

更新日期：2015-03-17 00:00:00

abstract：:A remote labeling method has been developed to determine (18)O kinetic isotope effects (KIEs) in Ras-catalyzed GTP hydrolysis. Substrate mixtures consist of (13)C-depleted GTP and [(18)O,(13)C]GTP that contains (18)O at phosphoryl positions of mechanistic interest and (13)C at all carbon positions of the guanosine moi...

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

authors： Du X,Black GE,Lecchi P,Abramson FP,Sprang SR

更新日期：2004-06-15 00:00:00