The Epstein-Barr virus oncogene product, latent membrane protein 1, induces the downregulation of E-cadherin gene expression via activation of DNA methyltransferases.

abstract：:Long-term, localized delivery of small molecules from a biodegradable thin film is challenging owing to their low molecular weight and poor charge density. Accomplishing highly extended controlled release can facilitate high therapeutic levels in specific regions of the body while significantly reducing the toxicity t...

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

authors： Hsu BB,Park MH,Hagerman SR,Hammond PT

更新日期：2014-08-19 00:00:00

abstract：:A major goal for developmental biologists is to define the behaviors and molecular contents of differentiating cells. We have devised a strategy for isolating cells from diverse embryonic regions and stages in the zebrafish, using computer-guided laser photoconversion of injected Kaede protein and flow cytometry. This...

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

authors： Brown JL,Snir M,Noushmehr H,Kirby M,Hong SK,Elkahloun AG,Feldman B

更新日期：2008-08-26 00:00:00

abstract：:Despite extensive studies, the structural basis for the mechanochemical coupling in the rotary molecular motor F1-ATPase (F1) is still incomplete. We performed single-molecule FRET measurements to monitor conformational changes in the stator ring-α3β3, while simultaneously monitoring rotations of the central shaft-γ. ...

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

authors： Sugawa M,Okazaki K,Kobayashi M,Matsui T,Hummer G,Masaike T,Nishizaka T

更新日期：2016-05-24 00:00:00

abstract：:Antibodies prepared against peptides CP2, CP4, and CP5, which occur within the first 1522 amino acid residues of the alpha 1 subunit of dihydropyridine-sensitive skeletal muscle calcium channels, specifically recognized a 175-kDa form of the alpha 1 subunit in immunoblots and immunoprecipitation experiments. In contra...

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

authors： De Jongh KS,Merrick DK,Catterall WA

更新日期：1989-11-01 00:00:00

abstract：:Infection of BALB/3T3 cells by polyoma virus causes an alteration in the cell surface, characterized by enhanced agglutination of the cells by wheat germ agglutinin or concanavalin A. Infection by the thermosensitive mutant of polyoma, ts-3, causes the cell surface alteration at the permissive temperature, but not at ...

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

authors： Eckhart W,Dulbecco R,Burger MM

更新日期：1971-02-01 00:00:00

abstract：:Our long-term goal is the in vivo expression of intrinsically colored proteins without the need for further posttranslational modification or chemical functionalization by externally added reagents. Biocompatible (Aza)Indoles (Inds)/(Aza)Tryptophans (Trp) as optical probes represent almost ideal isosteric substitutes ...

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

authors： Lepthien S,Hoesl MG,Merkel L,Budisa N

更新日期：2008-10-21 00:00:00

abstract：:We have previously identified two species of the low-affinity human Fc receptor for IgE, Fc epsilon RIIa and Fc epsilon RIIb, which differ only in a short stretch of amino acids at the N-terminal cytoplasmic end. Their differential expressions on B cells and monocytes suggest that Fc epsilon RIIa and Fc epsilon RIIb a...

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

authors： Yokota A,Yukawa K,Yamamoto A,Sugiyama K,Suemura M,Tashiro Y,Kishimoto T,Kikutani H

更新日期：1992-06-01 00:00:00

abstract：:To elucidate the means by which metabolic inhibition depolarizes cardiac cells, spontaneously beating chicken embryonic myocardial cell aggregates were voltage clamped during superfusion with 2,4-dinitrophenol and iodoacetic acid. In aggregates continuously clamped in the pacemaker potential range, abrupt exposure to ...

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

authors： Clusin WT

更新日期：1983-06-01 00:00:00

abstract：:Hepatitis A virus (HAV) infects ∼1.4 million people annually and, although there is a vaccine, there are no licensed therapeutic drugs. HAV is unusually stable (making disinfection problematic) and little is known of how it enters cells and releases its RNA. Here we report a potent HAV-specific monoclonal antibody, R1...

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

authors： Wang X,Zhu L,Dang M,Hu Z,Gao Q,Yuan S,Sun Y,Zhang B,Ren J,Kotecha A,Walter TS,Wang J,Fry EE,Stuart DI,Rao Z

更新日期：2017-01-24 00:00:00

abstract：:Epithelia are planar tissues that undergo major morphogenetic movements during development. These movements must work in the context of the mechanical properties of epithelia. Surprisingly little is known about these mechanical properties at the time and length scales of morphogenetic processes. We show that at a time...

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

authors： Luu O,David R,Ninomiya H,Winklbauer R

更新日期：2011-03-08 00:00:00

abstract：:The infectious reovirus RNA system was used to construct a mutant with two temperature-sensitive (ts) lesions in genome segments M2 and S2, respectively. The double mutant is about 300 times more ts than either of its parents, which are about 1,500 and 170 times more ts than their wild-type parent reovirus ST3 strain ...

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

authors： Roner MR,Nepliouev I,Sherry B,Joklik WK

更新日期：1997-06-24 00:00:00

abstract：:We introduce a family of fast ordered upwind methods for approximating solutions to a wide class of static Hamilton-Jacobi equations with Dirichlet boundary conditions. Standard techniques often rely on iteration to converge to the solution of a discretized version of the partial differential equation. Our fast method...

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

authors： Sethian JA,Vladimirsky A

更新日期：2001-09-25 00:00:00

abstract：:A 165-kilodalton (kDal) surface glycoprotein encoded by human chromosome 7 (SA-7) had been characterized by using antisera raised against human chromosome 7-containing somatic cell hybrids. We now present evidence that SA-7 is the human receptor for epidermal growth factor (EGF) and that these antisera recognize human...

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

authors： Carlin CR,Knowles BB

更新日期：1982-08-01 00:00:00

abstract：:A 24-amino acid residue peptide has been isolated from the Fc region of a human IgG1 myeloma protein. The peptide has associated with it the same ability to induce murine B cells to polyclonally secrete antibody as does the intact Fc fragment. Amino acid composition of the peptide indicates that on a mole/mole basis t...

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

authors： Morgan EL,Hugli TE,Weigle WO

更新日期：1982-09-01 00:00:00

abstract：:Intramembrane proteolysis is a new paradigm in biology that controls signaling events throughout evolution. Hydrolysis of peptide bonds is thought to occur within the normally hydrophobic membrane environment, but insights into this unusual activity have been lacking because of difficulty in recapitulating activity in...

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

authors： Urban S,Wolfe MS

更新日期：2005-02-08 00:00:00

abstract：:The alternative splicing of mRNA is a critical process in higher eukaryotes that generates substantial proteomic diversity. Many of the proteins that are essential to this process contain arginine/serine-rich (RS) domains. ZRANB2 is a widely-expressed and highly-conserved RS-domain protein that can regulate alternativ...

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

authors： Loughlin FE,Mansfield RE,Vaz PM,McGrath AP,Setiyaputra S,Gamsjaeger R,Chen ES,Morris BJ,Guss JM,Mackay JP

更新日期：2009-04-07 00:00:00

abstract：:The Wnts are a family of glycoproteins that regulate cell proliferation, fate decisions, and differentiation. In our study, we examined the contribution of Wnts to the development of ventral midbrain (VM) dopaminergic (DA) neurons. Our results show that beta-catenin is expressed in DA precursor cells and that beta-cat...

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

authors： Castelo-Branco G,Wagner J,Rodriguez FJ,Kele J,Sousa K,Rawal N,Pasolli HA,Fuchs E,Kitajewski J,Arenas E

更新日期：2003-10-28 00:00:00

abstract：:To enable discovery of serum antibodies indicative of disease and simultaneously develop reagents suitable for diagnosis, in vitro directed evolution was applied to identify consensus peptides recognized by patients' serum antibodies. Bacterial cell-displayed peptide libraries were quantitatively screened for binders ...

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

authors： Ballew JT,Murray JA,Collin P,Mäki M,Kagnoff MF,Kaukinen K,Daugherty PS

更新日期：2013-11-26 00:00:00

abstract：:The switch from fetal to adult hemoglobin expression is regulated in many mammalian species by a developmental clock-like mechanism and determined by the gestational age of the fetus. Prolonging fetal globin gene expression is of considerable interest for therapeutic potential in diseases caused by abnormal beta-globi...

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

authors： Perrine SP,Rudolph A,Faller DV,Roman C,Cohen RA,Chen SJ,Kan YW

更新日期：1988-11-01 00:00:00

abstract：:Synaptojanin 1 is a polyphosphoinositide phosphatase concentrated in presynaptic nerve terminals, where it dephosphorylates a pool of phosphatidylinositol 4,5-bisphosphate implicated in synaptic vesicle recycling. Like other proteins with a role in endocytosis, synaptojanin 1 undergoes constitutive phosphorylation in ...

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

authors： Lee SY,Wenk MR,Kim Y,Nairn AC,De Camilli P

更新日期：2004-01-13 00:00:00

abstract：:We have used a semiselective Hahn spin-echo sequence of the form (1331)-tau-(2662)-tau-AQ, delivered by a surface coil to obtain high-resolution 1H NMR spectra from the brains of intact dead rats. This sequence gave suppression of the tissue water resonance by a factor of 80,000 when tau = 68 ms. Delivery of a frequen...

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

authors： Hetherington HP,Avison MJ,Shulman RG

更新日期：1985-05-01 00:00:00

abstract：:MicroRNAs (miRNAs) are a class of small noncoding RNAs that have important regulatory roles in multicellular organisms. The public miRNA database contains 321 human miRNA sequences, 234 of which have been experimentally verified. To explore the possibility that additional miRNAs are present in the human genome, we hav...

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

authors： Cummins JM,He Y,Leary RJ,Pagliarini R,Diaz LA Jr,Sjoblom T,Barad O,Bentwich Z,Szafranska AE,Labourier E,Raymond CK,Roberts BS,Juhl H,Kinzler KW,Vogelstein B,Velculescu VE

更新日期：2006-03-07 00:00:00

abstract：:Vertebrate embryogenesis and organogenesis are driven by cell biological processes, ranging from mitosis and migration to changes in cell size and polarity, but their control and causal relationships are not fully defined. Here, we use the developing limb skeleton to better define the relationships between mitosis and...

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

authors： Li Y,Junge JA,Arnesano C,Gross GG,Miner JH,Moats R,Roberts RW,Arnold DB,Fraser SE

更新日期：2018-11-13 00:00:00

abstract：:A central question in developmental biology has been the initiation of cell-specific gene expression and its temporal relationship to morphogenesis. We have coupled embryo microdissection with the exquisite sensitivity of the polymerase chain reaction to define the onset of cell-specific gene expression during pancrea...

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

authors： Gittes GK,Rutter WJ

更新日期：1992-02-01 00:00:00

abstract：:Introduction and expression of multiple transgenes is frequently required for basic and applied studies. However, at present, multigene transformation is very difficult due to technical limitations of existing methods. Here, we describe a vector system for efficient multigene assembly and transformation. The system co...

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

authors： Lin L,Liu YG,Xu X,Li B

更新日期：2003-05-13 00:00:00

abstract：:The tau and gamma subunits of DNA polymerase III holoenzyme are both products of the dnaX gene. Since tau and gamma are required as stoichiometric components of the replicative complex, a mechanism must exist for the cell to coordinate their synthesis and ensure that both subunits are present in an adequate quantity a...

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

authors： Flower AM,McHenry CS

更新日期：1990-05-01 00:00:00

abstract：:Humans shift their gaze to a new location several times per second. It is still unclear what determines where they look next. Fixation behavior is influenced by the low-level salience of the visual stimulus, such as luminance, contrast, and color, but also by high-level task demands and prior knowledge. Under natural ...

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

authors： Schütz AC,Trommershäuser J,Gegenfurtner KR

更新日期：2012-05-08 00:00:00

abstract：:Agrobacterium tumefaciens can transfer part of its Ti plasmid, the T-DNA, to plant cells where it integrates into the nuclear genome via illegitimate recombination. Integration of the T-DNA results in small deletions of the plant target DNA, and may lead to truncation of the T-DNA borders and the production of filler ...

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

authors： Bundock P,Hooykaas PJ

更新日期：1996-12-24 00:00:00

abstract：:When histones in chromatin core particles were crosslinked with dimethylsuberimidate, the resulting particles had properties closely similar to those of native core particles. A crosslinked octameric histone complex was isolated from these particles under nondenaturing conditions. Upon reaction with DNA, this octameri...

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

authors： Stein A,Bina-Stein M,Simpson RT

更新日期：1977-07-01 00:00:00

abstract：:Chemokines play a key role in inflammation. They are expressed not only in neuroinflammatory conditions, but also constitutively by different cell types, including neurons in the normal brain, suggesting that they may act as modulators of neuronal functions. Here, we investigated a possible neuroendocrine role of the ...

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

authors： Callewaere C,Banisadr G,Desarménien MG,Mechighel P,Kitabgi P,Rostène WH,Mélik Parsadaniantz S

更新日期：2006-05-23 00:00:00