Discrete wave mechanics: The hydrogen atom.

abstract：:Novel cellular behaviors and characteristics can be obtained by coupling engineered gene networks to the cell's natural regulatory circuitry through appropriately designed input and output interfaces. Here, we demonstrate how an engineered genetic circuit can be used to construct cells that respond to biological signa...

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

authors： Kobayashi H,Kaern M,Araki M,Chung K,Gardner TS,Cantor CR,Collins JJ

更新日期：2004-06-01 00:00:00

abstract：:During the entry process, the human papillomavirus (HPV) capsid is trafficked to the trans-Golgi network (TGN), whereupon it enters the nucleus during mitosis. We previously demonstrated that the minor capsid protein L2 assumes a transmembranous conformation in the TGN. Here we provide evidence that the incoming viral...

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

authors： DiGiuseppe S,Luszczek W,Keiffer TR,Bienkowska-Haba M,Guion LG,Sapp MJ

更新日期：2016-05-31 00:00:00

abstract：:Evolutionary innovations often arise from complex genetic and ecological interactions, which can make it challenging to understand retrospectively how a novel trait arose. In a long-term experiment, Escherichia coli gained the ability to use abundant citrate (Cit(+)) in the growth medium after ∼31,500 generations of e...

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

authors： Quandt EM,Deatherage DE,Ellington AD,Georgiou G,Barrick JE

更新日期：2014-02-11 00:00:00

abstract：:The single-pass transmembrane domains (TMDs) of the syndecan family of cell surface adhesion molecules have been implicated in functional protein-protein interactions. Although each paralog contains a conserved GxxxG dimerization motif, we show here that the syndecan-1 TMD dimerizes weakly, the syndecan-3 and syndecan...

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

authors： Dews IC,Mackenzie KR

更新日期：2007-12-26 00:00:00

abstract：:The hypernociceptive effects of cytokines [TNF-alpha, keratinocyte-derived chemokine (KC), and IL-1beta] and their participation in carrageenan (Cg)-induced inflammatory hypernociception in mice were investigated. Nociceptor sensitization (hypernociception) was quantified with an electronic version of the von Frey fil...

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

authors： Cunha TM,Verri WA Jr,Silva JS,Poole S,Cunha FQ,Ferreira SH

更新日期：2005-02-01 00:00:00

abstract：:Successful adaptation to changes in an animal's emotional and motivational environment depends on behavioral flexibility accompanied by changes in bodily responses, e.g., autonomic and endocrine, which support the change in behavior. Here, we identify the orbitofrontal cortex (OFC) as pivotal in the flexible regulatio...

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

authors： Reekie YL,Braesicke K,Man MS,Roberts AC

更新日期：2008-07-15 00:00:00

abstract：:Combinatorial transcription codes generate the myriad of cell types during development and thus likely provide crucial insights into directed differentiation of stem cells to a specific cell type. The LIM complex composed of Isl1 and Lhx3 directs the specification of spinal motor neurons (MNs) in embryos. Here, we rep...

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

authors： Lee S,Cuvillier JM,Lee B,Shen R,Lee JW,Lee SK

更新日期：2012-02-28 00:00:00

abstract：:HLA-G is the putative natural killer (NK) cell inhibitory ligand expressed on the extravillous cytotrophoblast of the human placenta. Killing of the class I negative human B cell line 721.221 by NK cells is inhibited by the expression of HLA-G. This inhibition is dependent on a high level of HLA-G expression. In the p...

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

authors： Mandelboim O,Pazmany L,Davis DM,Valés-Gómez M,Reyburn HT,Rybalov B,Strominger JL

更新日期：1997-12-23 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：:A yeast gene has been identified by screening for DNA replication mutants using a permeabilized cell replication assay. The mutant is temperature sensitive for growth and shows a cell cycle phenotype typical of DNA replication mutants. RNA synthesis is normal in the mutant but DNA synthesis ceases upon shift to the no...

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

authors： Budd ME,Campbell JL

更新日期：1995-08-15 00:00:00

abstract：:The mitotic (or spindle assembly) checkpoint system prevents premature separation of sister chromatids in mitosis. When the checkpoint is turned on, the mitotic checkpoint complex (MCC) inhibits the ubiquitin ligase anaphase-promoting complex/cyclosome (APC/C). MCC is composed of the checkpoint proteins BubR1, Bub3, a...

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

authors： Eytan E,Sitry-Shevah D,Teichner A,Hershko A

更新日期：2013-06-25 00:00:00

abstract：:The population genetic consequences of nearest-neighbor pollination in an outcrossing plant species were investigated through computer simulations. The genetic system consisted of two alleles at a single locus in a self-incompatible plant that mates by random pollen transfer from a neighboring individual. Beginning wi...

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

authors： Turner ME,Stephens JC,Anderson WW

更新日期：1982-01-01 00:00:00

abstract：:Summertime Arctic shipboard observations of oxygenated volatile organic compounds (OVOCs) such as organic acids, key precursors of climatically active secondary organic aerosol (SOA), are consistent with a novel source of OVOCs to the marine boundary layer via chemistry at the sea surface microlayer. Although this sou...

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

authors： Mungall EL,Abbatt JPD,Wentzell JJB,Lee AKY,Thomas JL,Blais M,Gosselin M,Miller LA,Papakyriakou T,Willis MD,Liggio J

更新日期：2017-06-13 00:00:00

abstract：:Some taxa in the superfamily Arctoidea, such as the giant panda and the lesser panda, have presented puzzles to taxonomists. In the present study, approximately 397 bases of the cytochrome b gene, 364 bases of the 12S rRNA gene, and 74 bases of the tRNA(Thr) and tRNA(Pro) genes from the giant panda, lesser panda, kink...

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

authors： Zhang YP,Ryder OA

更新日期：1993-10-15 00:00:00

abstract：:Mismatch repair contributes to genetic stability, and inactivation of the mammalian pathway leads to tumor development. Mismatch correction occurs by an excision-repair mechanism and has been shown to depend on the 5' to 3' hydrolytic activity exonuclease 1 (Exo1) in eukaryotic cells. However, genetic and biochemical ...

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

authors： Kadyrov FA,Genschel J,Fang Y,Penland E,Edelmann W,Modrich P

更新日期：2009-05-26 00:00:00

abstract：:Apolipoprotein L-1 (APOL1), the trypanolytic factor of human serum, can lyse several African trypanosome species including Trypanosoma brucei brucei, but not the human-infective pathogens T. brucei rhodesiense and T. brucei gambiense, which are resistant to lysis by human serum. Lysis follows the uptake of APOL1 into ...

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

authors： Thomson R,Finkelstein A

更新日期：2015-03-03 00:00:00

abstract：:Src tyrosine kinase has long been implicated in colon cancer but much remains to be learned about its substrates. The nuclear receptor hepatocyte nuclear factor 4α (HNF4α) has just recently been implicated in colon cancer but its role is poorly defined. Here we show that c-Src phosphorylates human HNF4α on three tyros...

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

authors： Chellappa K,Jankova L,Schnabl JM,Pan S,Brelivet Y,Fung CL,Chan C,Dent OF,Clarke SJ,Robertson GR,Sladek FM

更新日期：2012-02-14 00:00:00

abstract：:Extracellular potassium concentration is actively maintained within narrow limits in all higher organisms. Slight variations in extracellular potassium levels can induce major alterations of essential physiological functions in excitable tissues. Here we describe that superfusion of cultured rat hippocampal neurones w...

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

authors： Pardo LA,Heinemann SH,Terlau H,Ludewig U,Lorra C,Pongs O,Stühmer W

更新日期：1992-03-15 00:00:00

abstract：:Signaling through beta-arrestins is a recently appreciated mechanism used by seven-transmembrane receptors. Because G protein-coupled receptor kinase (GRK) phosphorylation of such receptors is generally a prerequisite for beta-arrestin binding, we studied the roles of different GRKs in promoting beta-arrestin-mediated...

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

authors： Ren XR,Reiter E,Ahn S,Kim J,Chen W,Lefkowitz RJ

更新日期：2005-02-01 00:00:00

abstract：:Addition of Na+ to Na+-depleted Swiss 3T3 cells causes a rapid and dramatic increase in intracellular pH, as monitored by uptake of the weak acid 5,5-dimethyloxazolidine-2,4-dione. The effect of Na+ is concentration dependent (half-maximal effect at 38 mM); this cation can be replaced by Li+ but not by K+ or the choli...

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

authors： Schuldiner S,Rozengurt E

更新日期：1982-12-01 00:00:00

abstract：:We address the stability of multicharged finite systems driven by Coulomb forces beyond the Rayleigh instability limit. Our exploration of the nuclear dynamics of heavily charged Morse clusters enabled us to vary the range of the pair potential and of the fissibility parameter, which results in distinct fragmentation ...

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

authors： Last I,Levy Y,Jortner J

更新日期：2002-07-09 00:00:00

abstract：:Bar-coded multiplexed sequencing approaches based on new-generation sequencing technologies provide capacity to sequence a mapping population in a single sequencing run. However, such approaches usually generate low-coverage and error-prone sequences for each line in a population. Thus, it is a significant challenge t...

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

authors： Xie W,Feng Q,Yu H,Huang X,Zhao Q,Xing Y,Yu S,Han B,Zhang Q

更新日期：2010-06-08 00:00:00

abstract：:The synthetic, biologically active, [Phe4Val6] analog of natural antamanide has been crystallized from a solution containing calcium nitrate, acetone, and acetonitrile. The crystal does not contain any Ca2+ ions but does contain 12 water molecules per peptide molecule. The conformation of this dodecahydrate is identic...

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

authors： Karle IL,Duesler E

更新日期：1977-07-01 00:00:00

abstract：:The numbers and proportion of neurons in areas and regions of cortex were determined for a single cortical hemisphere from two prosimian galagos, one New World owl monkey, one Old World macaque monkey, and one baboon. The results suggest that there is a common plan of cortical organization across the species examined ...

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

authors： Collins CE,Airey DC,Young NA,Leitch DB,Kaas JH

更新日期：2010-09-07 00:00:00

abstract：:Phytochrome A (phyA) is the only plant photoreceptor that perceives far-red light and then mediates various responses to this signal. Phosphorylation and dephosphorylation of oat phyA have been extensively studied, and it was shown that phosphorylation of a serine residue in the hinge region of oat phyA could regulate...

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

authors： Zhou Y,Yang L,Duan J,Cheng J,Shen Y,Wang X,Han R,Li H,Li Z,Wang L,Terzaghi W,Zhu D,Chen H,Deng XW,Li J

更新日期：2018-12-11 00:00:00

abstract：:T-cell anergy is a state of T cells that is hyporesponsive to stimulation via the T-cell receptor and costimulatory molecules and is thought to be important for self-tolerance. How T-cell anergy is regulated is still poorly understood. We report here that tuberous sclerosis (TSC)1 is critical for T-cell anergy. Defici...

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

authors： Xie DL,Wu J,Lou YL,Zhong XP

更新日期：2012-08-28 00:00:00

abstract：:The colligative properties of ATP and catecholamines demonstrated in vitro are thought to be responsible for the extraordinary accumulation of solutes inside chromaffin cell secretory vesicles, although this has yet to be demonstrated in living cells. Because functional cells cannot be deprived of ATP, we have knocked...

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

authors： Estévez-Herrera J,Domínguez N,Pardo MR,González-Santana A,Westhead EW,Borges R,Machado JD

更新日期：2016-07-12 00:00:00

abstract：:Understanding nuclear receptor signaling in vivo would be facilitated by an efficient methodology to determine where a nuclear receptor is active. Herein, we present a feedback-inducible expression system in transgenic mice to detect activated nuclear receptor effector proteins by using an inducible reporter gene. Wit...

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

authors： Mata De Urquiza A,Solomin L,Perlmann T

更新日期：1999-11-09 00:00:00

abstract：:A 32-base-pair (bp) DNA duplex with deletions in one strand, and thus extra bases in the opposing strand, was ligated head-to-tail to produce linear and circular multimers. The electrophoretic mobility of the linear multimers was analyzed in polyacrylamide gels and the size of the circular DNA was determined by electr...

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

authors： Hsieh CH,Griffith JD

更新日期：1989-07-01 00:00:00

abstract：:Type II platelet-activating factor-acetylhydrolase [PAF-AH (II)] is an N-myristoylated enzyme that contains a lipase/esterase catalytic motif and selectively hydrolyzes the sn-2 acetyl ester of PAF and other short-chain acyl groups attached to phosphoglycerides. However, the physiological role of this enzyme remains t...

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

authors： Inoue T,Sugimoto A,Suzuki Y,Yamamoto M,Tsujimoto M,Inoue K,Aoki J,Arai H

更新日期：2004-09-07 00:00:00