Control of excision frequency of maize transposable element Ds in Petunia protoplasts.

abstract：:We report a measurement of the transverse momentum correlation between two photons by detecting only one of them. Our method uses two identical sources in an arrangement in which the phenomenon of induced coherence without induced emission is observed. In this way, we produce an interference pattern in the superpositi...

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

authors： Hochrainer A,Lahiri M,Lapkiewicz R,Lemos GB,Zeilinger A

更新日期：2017-02-14 00:00:00

abstract：:A key challenge in ecology is to define species' niches on the basis of functional traits. Size and shape are important determinants of a species' niche but their causal role is often difficult to interpret. For endotherms, size and shape define the thermal niche through their interaction with core temperature, insula...

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

authors： Porter WP,Kearney M

更新日期：2009-11-17 00:00:00

abstract：:Although in decline after successful anti-HIV therapy, B-cell lymphomas are still elevated in HIV-1-seropositive (HIV+) persons, and the mechanisms are obscure. The HIV-1 matrix protein p17 persists in germinal centers long after HIV-1 drug suppression, and some p17 variants (vp17s) activate Akt signaling and promote ...

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

authors： Dolcetti R,Giagulli C,He W,Selleri M,Caccuri F,Eyzaguirre LM,Mazzuca P,Corbellini S,Campilongo F,Marsico S,Giombini E,Muraro E,Rozera G,De Paoli P,Carbone A,Capobianchi MR,Ippolito G,Fiorentini S,Blattner WA,Lu W,

更新日期：2015-11-17 00:00:00

abstract：:The paradigmatic example of a continuous quantum phase transition is the transverse field Ising ferromagnet. In contrast to classical critical systems, whose properties depend only on symmetry and the dimension of space, the nature of a quantum phase transition also depends on the dynamics. In the transverse field Isi...

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

authors： Maharaj AV,Rosenberg EW,Hristov AT,Berg E,Fernandes RM,Fisher IR,Kivelson SA

更新日期：2017-12-19 00:00:00

abstract：:A cDNA clone corresponding to a portion of the catalytic subunit of calmodulin (CaM)-dependent phosphoprotein phosphatase (calcineurin) was isolated from a murine brain library by expression vector immunoscreening. A beta-galactosidase fusion protein that reacted on Western blots with anti-calcineurin antibodies and b...

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

authors： Kincaid RL,Nightingale MS,Martin BM

更新日期：1988-12-01 00:00:00

abstract：:Circulating exosomal microRNA (miR) represents a new class of blood-based biomarkers for cancer liquid biopsy. The detection of miR at a very low concentration and with single-base discrimination without the need for sophisticated equipment, large volumes, or elaborate sample processing is a challenge. To address this...

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

authors： Canady TD,Li N,Smith LD,Lu Y,Kohli M,Smith AM,Cunningham BT

更新日期：2019-09-24 00:00:00

abstract：:The importance of carbon in Earth's mantle greatly exceeds its modest abundance of approximately 1,000-4,000 ppm. Carbon is a constituent of key terrestrial volatiles (CO, CO(2), CH(4)), it forms diamonds, and it may also contribute to the bulk electrical properties of the silicate Earth. In contrast to that of the ma...

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

authors： Hayden LA,Watson EB

更新日期：2008-06-24 00:00:00

abstract：:Experimental allergic encephalomyelitis (EAE), an autoimmune model of multiple sclerosis, is a complex disease influenced by genetic, intrinsic, and environmental factors. In this study, we questioned whether parent-of-origin effects influence EAE, using reciprocal F2 intercross progeny generated between EAE-susceptib...

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

authors： Teuscher C,Noubade R,Spach K,McElvany B,Bunn JY,Fillmore PD,Zachary JF,Blankenhorn EP

更新日期：2006-05-23 00:00:00

abstract：:We have used a microfluidic mass sensor to measure the density of single living cells. By weighing each cell in two fluids of different densities, our technique measures the single-cell mass, volume, and density of approximately 500 cells per hour with a density precision of 0.001 g mL(-1). We observe that the intrins...

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

authors： Grover WH,Bryan AK,Diez-Silva M,Suresh S,Higgins JM,Manalis SR

更新日期：2011-07-05 00:00:00

abstract：:MAP kinase-interacting kinase 1 and 2 (Mnk1 and Mnk2) are protein-serine/threonine kinases that are activated by ERK or p38 and phosphorylate eIF4E, which is involved in cap-dependent translation initiation. However, Mnk1/2 double knockout (Mnk-DKO) mice show normal cell growth and development despite an absence of eI...

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

authors： Ueda T,Sasaki M,Elia AJ,Chio II,Hamada K,Fukunaga R,Mak TW

更新日期：2010-08-10 00:00:00

abstract：:Docosahexaenoic acid (DCHA), a major polyunsaturated acid component of fish lipid, is not a substrate for prostaglandin synthetase from ram seminal vesicles but is a strong competitive inhibitor (Ki, 0.36 microM) of the conversion by this enzyme of arachidonate (Km, 5.9 microM) to prostaglandins. In contrast, DCHA exh...

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

authors： Corey EJ,Shih C,Cashman JR

更新日期：1983-06-01 00:00:00

abstract：:The earliest measurable parameter that shows density-dependent inhibition is the uptake of [(3)H]deoxyglucose by Balb 3T3 cells. The rate decreases even during the exponential phase of growth and reaches a minimum, about 8- to 10-times lower than maximum, as the culture approaches the saturation density. Cells transfo...

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

authors： Bose SK,Zlotnick BJ

更新日期：1973-08-01 00:00:00

abstract：:The kinetics of hepatic uptake and degradation of sphingomyelin/cholesterol (2:1, M/M) small unilamellar liposomes were investigated in a BALB/c mouse. The tissue distribution of liposomes was determined by scintillation spectrometry. The percentage of intact liposomes in tissues was estimated by the technique of gamm...

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

authors： Hwang KJ,Luk KF,Beaumier PL

更新日期：1980-07-01 00:00:00

abstract：:Unlike other cation channels, each subunit of most transient receptor potential (TRP) channels has an additional TRP-domain helix with an invariant tryptophan immediately trailing the gate-bearing S6. Recent cryo-electron microscopy of TRP vanilloid subfamily, member 1 structures revealed that this domain is a five-tu...

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

authors： Teng J,Loukin SH,Anishkin A,Kung C

更新日期：2015-03-17 00:00:00

abstract：:Transmissible spongiform encephalopathies (TSEs), or prion diseases, are mammalian neurodegenerative disorders characterized by a posttranslational conversion and brain accumulation of an insoluble, protease-resistant isoform (PrP(Sc)) of the host-encoded cellular prion protein (PrP(C)). Human and animal TSE agents ex...

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

authors： Casalone C,Zanusso G,Acutis P,Ferrari S,Capucci L,Tagliavini F,Monaco S,Caramelli M

更新日期：2004-03-02 00:00:00

abstract：:Synergism between transcriptional activators is a powerful way of potentiating their function. Here we show that the glial POU domain protein Tst-1 (also known as Oct-6 and SCIP) and large tumor antigen (T antigen) synergistically increased transcription from both the early and the late promoters of papovavirus JC in ...

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

authors： Renner K,Leger H,Wegner M

更新日期：1994-07-05 00:00:00

abstract：:Alcohol exposure during development can cause brain malformations and neurobehavioral abnormalities. In view of the teratogenicity of ethanol, identification of molecules that could counteract the neurotoxic effects of alcohol deserves high priority. Here, we report that pituitary adenylate cyclase-activating polypept...

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

authors： Vaudry D,Rousselle C,Basille M,Falluel-Morel A,Pamantung TF,Fontaine M,Fournier A,Vaudry H,Gonzalez BJ

更新日期：2002-04-30 00:00:00

abstract：:When encountering unexpected event changes, memories of relevant past experiences must be updated to form new representations. Current models of memory updating propose that people must first generate memory-based predictions to detect and register that features of the environment have changed, then encode the new eve...

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

authors： Stawarczyk D,Wahlheim CN,Etzel JA,Snyder AZ,Zacks JM

更新日期：2020-11-24 00:00:00

abstract：:In all organisms, mild heat pretreatments induce tolerance to high temperatures. In the yeast Saccharomyces cerevisiae, such pretreatments strongly induce heat-shock protein (Hsp) 104, and hsp104 mutations greatly reduce high-temperature survival, indicating Hsp1O4 plays a critical role in induced thermotolerance. Sur...

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

authors： Lindquist S,Kim G

更新日期：1996-05-28 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：:If H denotes the classical Hilbert transform and Hu(x) = v(x), then the functions u(x) and v(x) are the values on the real axis of a pair of conjugate functions, harmonic in the upper half-plane. This note gives a generalization of the above concepts in which the Laplace equation Deltau = 0 is replaced by the Yukawa e...

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

authors： Duffin RJ

更新日期：1972-12-01 00:00:00

abstract：:Tissue kallikrein (TK) is a serine protease synthetized in renal tubular cells located upstream from the collecting duct where renal potassium balance is regulated. Because secretion of TK is promoted by K+ intake, we hypothesized that this enzyme might regulate plasma K+ concentration ([K+]). We showed in wild-type m...

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

authors： El Moghrabi S,Houillier P,Picard N,Sohet F,Wootla B,Bloch-Faure M,Leviel F,Cheval L,Frische S,Meneton P,Eladari D,Chambrey R

更新日期：2010-07-27 00:00:00

abstract：:Scientific cinematography using ultrafast optical imaging is a common tool to study motion. In opaque organisms or structures, X-ray radiography captures sequences of 2D projections to visualize morphological dynamics, but for many applications full four-dimensional (4D) spatiotemporal information is highly desirable....

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

authors： dos Santos Rolo T,Ershov A,van de Kamp T,Baumbach T

更新日期：2014-03-18 00:00:00

abstract：:The herpes simplex virus DNA polymerase consists of two subunits--a catalytic subunit and an accessory subunit, UL42, that increases processivity. Mutations affecting the extreme C terminus of the catalytic subunit specifically disrupt subunit interactions and ablate virus replication, suggesting that new antiviral dr...

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

authors： Digard P,Williams KP,Hensley P,Brooks IS,Dahl CE,Coen DM

更新日期：1995-02-28 00:00:00

abstract：:Hydrocarbon films confined between smooth mica surfaces have long provided an experimental playground for model studies of structure and dynamics of confined liquids. However, fundamental questions regarding the phase behavior and shear properties in this simple system remain unsolved. With ultrasensitive resolution i...

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

authors： Smith AM,Hallett JE,Perkin S

更新日期：2019-12-17 00:00:00

abstract：:Protein kinases play key roles in the induction by human interferon alpha (IFN-alpha) of specific gene expression and biological activity in various human cell lines. We now report that IFN-alpha increased the 7-kb transcript for the epsilon isotype of protein kinase C (PKC-epsilon) and the cellular content of PKC-eps...

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

authors： Wang C,Constantinescu SN,MacEwan DJ,Strulovici B,Dekker LV,Parker PJ,Pfeffer LM

更新日期：1993-08-01 00:00:00

abstract：:Tyrosine kinases of the Janus kinase family initiate cellular responses through their association with receptors for alpha-helical cytokines. In addition to a tyrosine kinase domain, these enzymes possess a kinase-like (KL) domain, whose function remains elusive. To investigate the role of the KL domain of Tyk2 in int...

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

authors： Yeh TC,Dondi E,Uze G,Pellegrini S

更新日期：2000-08-01 00:00:00

abstract：:Host-encoded factors play an important role in virus multiplication, acting in concert with virus-encoded factors. However, information regarding the host factors involved in this process is limited. Here we report the map-based cloning of an Arabidopsis thaliana gene, TOM1, which is necessary for the efficient multip...

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

authors： Yamanaka T,Ohta T,Takahashi M,Meshi T,Schmidt R,Dean C,Naito S,Ishikawa M

更新日期：2000-08-29 00:00:00

abstract：:Male (NZW x BXSB)F1 (W/BF1) mice develop systemic autoimmunity involving autoantibodies, thrombocytopenia, lupus nephritis, and coronary vascular disease (CVD) with myocardial infarction. To determine whether this murine lupus-associated CVD can be prevented by the reduction of dietary calories, male W/BF1 mice were s...

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

authors： Mizutani H,Engelman RW,Kinjoh K,Kurata Y,Ikehara S,Matsuzawa Y,Good RA

更新日期：1994-05-10 00:00:00

abstract：:A 1H NMR study of the 79-residue globular domain of chicken erythrocyte histone H5 (GH5) is presented. Using a combination of two-dimensional NMR techniques to demonstrate through-bond and through-space (less than 5 A) connectivities, the resonances of GH5 are assigned in a sequential manner. From a qualitative interp...

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

authors： Zarbock J,Clore GM,Gronenborn AM

更新日期：1986-10-01 00:00:00