Translatome analyses capture of opposing tissue-specific brassinosteroid signals orchestrating root meristem differentiation.

abstract：:Mechanical failure of soft tissues is characteristic of life-threatening diseases, including capillary stress failure, pulmonary emphysema, and vessel wall aneurysms. Failure occurs when mechanical forces are sufficiently high to rupture the enzymatically weakened extracellular matrix (ECM). Elastin, an important stru...

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

authors： Ritter MC,Jesudason R,Majumdar A,Stamenovic D,Buczek-Thomas JA,Stone PJ,Nugent MA,Suki B

更新日期：2009-01-27 00:00:00

abstract：:Previous research and theory suggest that two stable personality dimensions, extroversion and neuroticism, differentially influence emotional reactivity to a variety of pleasurable phenomena. Here, we use event-related functional MRI to address the putative neural and behavioral associations between humor appreciation...

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

authors： Mobbs D,Hagan CC,Azim E,Menon V,Reiss AL

更新日期：2005-11-08 00:00:00

abstract：:Many processes in nature are modeled using compartmental systems (reservoir/pool/box systems). Usually, they are expressed as a set of first-order differential equations describing the transfer of matter across a network of compartments. The concepts of age of matter in compartments and the time required for particles...

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

authors： Metzler H,Müller M,Sierra CA

更新日期：2018-02-06 00:00:00

abstract：:Tropical forest degradation emits carbon at a rate of approximately 0.5 Pgxy(-1), reduces biodiversity, and facilitates forest clearance. Understanding degradation drivers and patterns is therefore crucial to managing forests to mitigate climate change and reduce biodiversity loss. Putative patterns of degradation aff...

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

authors： Ahrends A,Burgess ND,Milledge SA,Bulling MT,Fisher B,Smart JC,Clarke GP,Mhoro BE,Lewis SL

更新日期：2010-08-17 00:00:00

abstract：:Model compositions of Earth, Venus, and Mercury are calculated from the premise that planets and chondrites underwent four identical fractionation processes in the solar nebula. Because elements of similar properties stay together in these processes, five constraints suffice to define the composition of a planet: mass...

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

authors： Morgan JW,Anders E

更新日期：1980-12-01 00:00:00

abstract：:Using direct percussion, language-competent bonobo-chimpanzees Kanzi and Pan-Banisha produced a significantly wider variety of flint tool types than hitherto reported, and used them task-specifically to break wooden logs or to dig underground for food retrieval. For log breaking, small flakes were rotated drill-like o...

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

authors： Roffman I,Savage-Rumbaugh S,Rubert-Pugh E,Ronen A,Nevo E

更新日期：2012-09-04 00:00:00

abstract：:Cytochrome c maturation in Escherichia coli requires the ccm operon, which encodes eight membrane proteins (CcmABCDEFGH). CcmE is a periplasmic heme chaperone that binds heme covalently and transfers it onto apocytochrome c in the presence of CcmF, CcmG, and CcmH. In this work we addressed the functions of the ccmABCD...

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

authors： Schulz H,Fabianek RA,Pellicioli EC,Hennecke H,Thöny-Meyer L

更新日期：1999-05-25 00:00:00

abstract：:Integral membrane proteins that form water-filled channels through membranes often exist as aggregates of similar or identical subunits spanning the membrane. It has been suggested that the insertion into the membrane of the channel-forming domains of the subunits may impart unusual structural features to the membrane...

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

authors： Maher PA,Singer SJ

更新日期：1985-02-01 00:00:00

abstract：:Some monoclonal antibodies (mAbs) against interleukin (IL) 1 alpha have been found to activate antigen-presenting cells (APC, human peripheral blood monocytes and B lymphocytes), so that unstimulated T lymphocytes cultured with them are induced to proliferate and secrete IL-2. Control mAbs of the same isotypes and mAb...

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

authors： Eugui EM,Almquist SJ

更新日期：1990-02-01 00:00:00

abstract：:Dyskeratosis congenita is a rare inherited disorder characterized by abnormal skin manifestations. Morbidity and mortality from this disease is usually due to bone marrow failure, but idiopathic pulmonary fibrosis and an increased cancer predisposition also occur. Families with autosomal dominant dyskeratosis congenit...

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

authors： Armanios M,Chen JL,Chang YP,Brodsky RA,Hawkins A,Griffin CA,Eshleman JR,Cohen AR,Chakravarti A,Hamosh A,Greider CW

更新日期：2005-11-01 00:00:00

abstract：:The replacement of dopamine (DA) by DA neuron transplants in the treatment of advanced Parkinson disease (PD) is a rational approach. Because of limitations associated with fetal tissue transplants, a clone (1RB3AN27) of simian virus 40 large tumor antigen (LTa) gene-induced immortalized DA neurons were used in this s...

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

authors： Clarkson ED,Rosa FG,Edwards-Prasad J,Weiland DA,Witta SE,Freed CR,Prasad KN

更新日期：1998-02-03 00:00:00

abstract：:Parasponia, a woody member of the elm family, is the only nonlegume genus whose members are known to form an effective nitrogen-fixing symbiosis with a Rhizobium species. The bacterial strain RP501 is a slow-growing strain of Rhizobium isolated from Parasponia nodules. Strain RP501 also nodulates the legumes siratro (...

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

authors： Marvel DJ,Kuldau G,Hirsch A,Richards E,Torrey JG,Ausubel FM

更新日期：1985-09-01 00:00:00

abstract：:C-tail-anchored (TA) proteins often require a transmembrane domain of moderate hydrophobicity to maintain their endoplasmic reticulum residence, but the suggested role of protein-lipid interactions in this phenomenon has not been established. Here, we studied the interaction of TA proteins with lipids by differential ...

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

authors： Ceppi P,Colombo S,Francolini M,Raimondo F,Borgese N,Masserini M

更新日期：2005-11-08 00:00:00

abstract：:Cell membrane proteins synthesized after infection of Escherichia coli B with wild-type phage T4 and rIIA mutants were analyzed by dodecyl sulfate-polyacrylamide gel electrophoresis. A protein with an approximate molecular weight of 74,000 is present in membranes isolated from T4r(+)-infected cells, but is not found i...

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

authors： Ennis HL,Kievitt KD

更新日期：1973-05-01 00:00:00

abstract：:Nuclear RNA of high molecular weight, approximately 15 to 30 x 10(3) nucleotides long, isolated from rat ascites cells, has been shown previously to contain both middle repetitive and single-copy sequences. However, it was not known whether these sequences were located on separate molecules or whether they were inters...

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

authors： Holmes DS,Bonner J

更新日期：1974-04-01 00:00:00

abstract：:Osedax is a recently discovered group of siboglinid annelids that consume bones on the seafloor and whose evolutionary origins have been linked with Cretaceous marine reptiles or to the post-Cretaceous rise of whales. Here we present whale bones from early Oligocene bathyal sediments exposed in Washington State, which...

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

authors： Kiel S,Goedert JL,Kahl WA,Rouse GW

更新日期：2010-05-11 00:00:00

abstract：:The nusB5 mutant of Escherichia coli was originally selected for reduced ability to support the antitermination of transcription that is mediated by the gene N product of bacteriophage lambda. By analyzing pulse-labeled RNA with an RNA.DNA filter hybridization technique, we have shown that, in the nusB5 mutant, the ra...

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

authors： Sharrock RA,Gourse RL,Nomura M

更新日期：1985-08-01 00:00:00

abstract：:DNA sequences containing short adenine tracts are intrinsically curved and play a role in transcriptional regulation. Despite many high-resolution NMR and x-ray studies, the origins of curvature remain disputed. Long-range restraints provided by 85 residual dipolar couplings were measured for a DNA decamer containing ...

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

authors： Barbic A,Zimmer DP,Crothers DM

更新日期：2003-03-04 00:00:00

abstract：:We studied the effect of N-cadherin, and its free or membrane-anchored cytoplasmic domain, on the level and localization of beta-catenin and on its ability to induce lymphocyte enhancer-binding factor 1 (LEF-1)-responsive transactivation. These cadherin derivatives formed complexes with beta-catenin and protected it f...

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

authors： Sadot E,Simcha I,Shtutman M,Ben-Ze'ev A,Geiger B

更新日期：1998-12-22 00:00:00

abstract：:Decision-making accuracy typically increases through collective integration of people's judgments into group decisions, a phenomenon known as the wisdom of crowds. For simple perceptual laboratory tasks, classic signal detection theory specifies the upper limit for collective integration benefits obtained by weighted ...

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

authors： Juni MZ,Eckstein MP

更新日期：2017-05-23 00:00:00

abstract：:An inwardly rectifying, ATP-regulated K+ channel with a distinctive molecular architecture, ROMK1, was recently cloned from rat kidney. Using patch clamp techniques, we have investigated the regulation of ROMK1 with particular emphasis on phosphorylation/dephosphorylation processes. Spontaneous channel rundown occurre...

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

authors： McNicholas CM,Wang W,Ho K,Hebert SC,Giebisch G

更新日期：1994-08-16 00:00:00

abstract：:X-ray structures of bovine heart cytochrome c oxidase have suggested that the enzyme, which reduces O(2) in a process coupled with a proton pumping process, contains a proton pumping pathway (H-pathway) composed of a hydrogen bond network and a water channel located in tandem across the enzyme. The hydrogen bond netwo...

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

authors： Shimokata K,Katayama Y,Murayama H,Suematsu M,Tsukihara T,Muramoto K,Aoyama H,Yoshikawa S,Shimada H

更新日期：2007-03-06 00:00:00

abstract：:Host factor protein Cyclophilin A (CypA) regulates HIV-1 viral infectivity through direct interactions with the viral capsid, by an unknown mechanism. CypA can either promote or inhibit viral infection, depending on host cell type and HIV-1 capsid (CA) protein sequence. We have examined the role of conformational dyna...

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

authors： Lu M,Hou G,Zhang H,Suiter CL,Ahn J,Byeon IJ,Perilla JR,Langmead CJ,Hung I,Gor'kov PL,Gan Z,Brey W,Aiken C,Zhang P,Schulten K,Gronenborn AM,Polenova T

更新日期：2015-11-24 00:00:00

abstract：:A near-full-length casbene synthase cDNA clone, pCS7, was isolated by using a partial cDNA clone, pCS4, to probe a lambda gt10 library constructed from poly(A)+ RNA from elicited castor bean seedlings. The cDNA insert had a length of 1983 bases with a polyadenylate tail of 19 bases. Translation of the cDNA sequence re...

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

authors： Mau CJ,West CA

更新日期：1994-08-30 00:00:00

abstract：:We noticed that disease-related amyloidogenic proteins and especially cellular prion proteins have the highest proportion of incompletely desolvated backbone H bonds among soluble proteins. Such bonds are vulnerable to water attack and thus represent structural weaknesses. We have measured the adsorption of proteins o...

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

authors： Fernández A,Berry RS

更新日期：2003-03-04 00:00:00

abstract：:Although nanoparticle-protein conjugates have been synthesized for numerous applications, bioconjugation remains a challenge, often resulting in denaturation or loss of protein function. This is partly because the protein-nanoparticle interface is poorly understood, which impedes the use of nanoparticles in nanomedici...

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

authors： Aubin-Tam ME,Hwang W,Hamad-Schifferli K

更新日期：2009-03-17 00:00:00

abstract：:Noncompetitive inhibitors of the nicotinic acetylcholine (ACh) receptors suppress cation flux directly by binding in and blocking the open channel or indirectly by stabilizing closed states of the receptor. The lidocaine derivative QX-314 and the acridine derivative quinacrine act directly as open channel blockers, bu...

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

authors： Yu Y,Shi L,Karlin A

更新日期：2003-04-01 00:00:00

abstract：:In 100 primary colorectal carcinomas, we demonstrate by array comparative genomic hybridization (aCGH) that 33% show DNA copy number (DCN) loss involving PARK2, the gene encoding PARKIN, the E3 ubiquitin ligase whose deficiency is responsible for a form of autosomal recessive juvenile parkinsonism. PARK2 is located on...

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

authors： Poulogiannis G,McIntyre RE,Dimitriadi M,Apps JR,Wilson CH,Ichimura K,Luo F,Cantley LC,Wyllie AH,Adams DJ,Arends MJ

更新日期：2010-08-24 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：:Neuronal dynamics display a complex spatiotemporal structure involving the precise, context-dependent coordination of activation patterns across a large number of spatially distributed regions. Functional magnetic resonance imaging (fMRI) has played a central role in demonstrating the nontrivial spatial and topologica...

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

authors： Zalesky A,Fornito A,Cocchi L,Gollo LL,Breakspear M

更新日期：2014-07-15 00:00:00