Spontaneous epigenetic variation in the Arabidopsis thaliana methylome.

abstract：:The Gakkel ridge, which extends under the Arctic ice cap for approximately 1,800 km, is the slowest spreading ocean ridge on Earth. Its spreading created the Eurasian basin, which is isolated from the rest of the oceanic mantle by North America, Eurasia and the Lomonosov ridge. The Gakkel ridge thus provides unique op...

journal_title：Nature

authors： Goldstein SL,Soffer G,Langmuir CH,Lehnert KA,Graham DW,Michael PJ

更新日期：2008-05-01 00:00:00

abstract：:Cooperative binding, whereby an initial binding event facilitates the uptake of additional substrate molecules, is common in biological systems such as haemoglobin. It was recently shown that porous solids that exhibit cooperative binding have substantial energetic benefits over traditional adsorbents, but few guideli...

journal_title：Nature

authors： Reed DA,Keitz BK,Oktawiec J,Mason JA,Runčevski T,Xiao DJ,Darago LE,Crocellà V,Bordiga S,Long JR

更新日期：2017-10-05 00:00:00

abstract：:Spin dynamics in antiferromagnets has much shorter timescales than in ferromagnets, offering attractive properties for potential applications in ultrafast devices1-3. However, spin-current generation via antiferromagnetic resonance and simultaneous electrical detection by the inverse spin Hall effect in heavy metals h...

journal_title：Nature

authors： Li J,Wilson CB,Cheng R,Lohmann M,Kavand M,Yuan W,Aldosary M,Agladze N,Wei P,Sherwin MS,Shi J

更新日期：2020-02-01 00:00:00

abstract：:Knowledge of the three-dimensional structures of proteins and other biological macromolecules often aids understanding of how they perform complicated tasks in the cell. Because many such tasks involve the cleavage or formation of chemical bonds, structural characterization at the atomic level is most useful. Developm...

journal_title：Nature

authors： Fernandez-Leiro R,Scheres SH

更新日期：2016-09-15 00:00:00

abstract：:Ground- and aircraft-based measurements show that the seasonal amplitude of Northern Hemisphere atmospheric carbon dioxide (CO2) concentrations has increased by as much as 50 per cent over the past 50 years. This increase has been linked to changes in temperate, boreal and arctic ecosystem properties and processes suc...

journal_title：Nature

authors： Gray JM,Frolking S,Kort EA,Ray DK,Kucharik CJ,Ramankutty N,Friedl MA

更新日期：2014-11-20 00:00:00

abstract：:Mitochondria take up and extrude various inorganic and organic ions, as well as larger substances such as proteins. The technique of patch clamping should provide real-time information on such transport and on energy transduction in oxidative phosphorylation. It has been applied to detect microscopic currents from mit...

journal_title：Nature

authors： Inoue I,Nagase H,Kishi K,Higuti T

更新日期：1991-07-18 00:00:00

abstract：:The requirement of metabolic energy for the interaction of polyene macrolide antibiotics with eukaryotic organisms remains a controversial subject (for review see ref. 1) It has been claimed that the lethal binding of these antibiotics to the sterol target component of the hydrophobic core of the membrane, in accordan...

journal_title：Nature

authors： Malewicz B,Borowski E

更新日期：1979-09-06 00:00:00

abstract：:The discovery of a plume of water vapour and ice particles emerging from warm fractures ('tiger stripes') in Saturn's small, icy moon Enceladus raised the question of whether the plume emerges from a subsurface liquid source or from the decomposition of ice. Previous compositional analyses of particles injected by the...

journal_title：Nature

authors： Postberg F,Schmidt J,Hillier J,Kempf S,Srama R

更新日期：2011-06-22 00:00:00

abstract：:For life to be sustained, mistakes in DNA repair must be tolerated when damage obscures the genetic information. In bacteria such as Escherichia coli, DNA damage elicits the well regulated 'SOS response'. For the extreme case of damage that cannot be repaired by conventional enzymes, there are proteins that allow the ...

journal_title：Nature

authors： Peat TS,Frank EG,McDonald JP,Levine AS,Woodgate R,Hendrickson WA

更新日期：1996-04-25 00:00:00

abstract：:The structure of an N-terminal fragment of CD4 has been determined to 2.4 A resolution. It has two tightly abutting domains connected by a continuous beta strand. Both have the immunoglobulin fold, but domain 2 has a truncated beta barrel and a non-standard disulphide bond. The binding sites for monoclonal antibodies,...

journal_title：Nature

authors： Wang JH,Yan YW,Garrett TP,Liu JH,Rodgers DW,Garlick RL,Tarr GE,Husain Y,Reinherz EL,Harrison SC

更新日期：1990-11-29 00:00:00

abstract：:The gut of healthy human neonates is usually devoid of viruses at birth, but quickly becomes colonized, which-in some cases-leads to gastrointestinal disorders1-4. Here we show that the assembly of the viral community in neonates takes place in distinct steps. Fluorescent staining of virus-like particles purified from...

journal_title：Nature

authors： Liang G,Zhao C,Zhang H,Mattei L,Sherrill-Mix S,Bittinger K,Kessler LR,Wu GD,Baldassano RN,DeRusso P,Ford E,Elovitz MA,Kelly MS,Patel MZ,Mazhani T,Gerber JS,Kelly A,Zemel BS,Bushman FD

更新日期：2020-05-01 00:00:00

abstract：:Understanding the nature and origin of the asteroid population in Earth's vicinity (near-Earth asteroids, and its subset of potentially hazardous asteroids) is a matter of both scientific interest and practical importance. It is generally expected that the compositions of the asteroids that are most likely to hit Eart...

journal_title：Nature

authors： Vernazza P,Binzel RP,Thomas CA,DeMeo FE,Bus SJ,Rivkin AS,Tokunaga AT

更新日期：2008-08-14 00:00:00

abstract：:Close inbreeding is known for a variety of small mammal species for which a high probability of mortality during dispersal makes helping and delayed maturation a relatively secure fitness option. Prolonged inbreeding, however, is usually associated with lowered fitness, and it has been shown that most highly inbred sm...

journal_title：Nature

authors： O'Riain MJ,Jarvis JU,Faulkes CG

更新日期：1996-04-18 00:00:00

abstract：:Guard cells are located in the epidermis of plant leaves, and in pairs surround stomatal pores. These control both the influx of CO2 as a raw material for photosynthesis and water loss from plants through transpiration to the atmosphere. Guard cells have become a highly developed system for dissecting early signal tra...

journal_title：Nature

authors： Schroeder JI,Kwak JM,Allen GJ

更新日期：2001-03-15 00:00:00

abstract：:Two approaches to the antibody-directed targeting of toxic or cytolytic activity and augmentation of cellular immune responses have been explored for tumour immunotherapy, but so far success has been limited. Obstacles facing immunotherapy are the limited accessibility of antibodies or antibody conjugates to solid tum...

journal_title：Nature

authors： Chen SY,Yang AG,Chen JD,Kute T,King CR,Collier J,Cong Y,Yao C,Huang XF

更新日期：1997-01-02 00:00:00

abstract：:Ever since Stephen Paget's 1889 hypothesis, metastatic organotropism has remained one of cancer's greatest mysteries. Here we demonstrate that exosomes from mouse and human lung-, liver- and brain-tropic tumour cells fuse preferentially with resident cells at their predicted destination, namely lung fibroblasts and ep...

journal_title：Nature

authors： Hoshino A,Costa-Silva B,Shen TL,Rodrigues G,Hashimoto A,Tesic Mark M,Molina H,Kohsaka S,Di Giannatale A,Ceder S,Singh S,Williams C,Soplop N,Uryu K,Pharmer L,King T,Bojmar L,Davies AE,Ararso Y,Zhang T,Zhang H,Her

更新日期：2015-11-19 00:00:00

abstract：:Multistranded DNA structures based upon guanine association have been proposed to be important in the structure of chromosome telomeres and in immunoglobulin class switching. Nucleic acids containing runs of guanine bases form a number of structures in vitro, including fold-back structures (Fig. 1a) and parallel-stran...

journal_title：Nature

authors： Aboul-ela F,Murchie AI,Lilley DM

更新日期：1992-11-19 00:00:00

abstract：:An optimal search theory, the so-called Lévy-flight foraging hypothesis, predicts that predators should adopt search strategies known as Lévy flights where prey is sparse and distributed unpredictably, but that Brownian movement is sufficiently efficient for locating abundant prey. Empirical studies have generated con...

journal_title：Nature

authors： Humphries NE,Queiroz N,Dyer JR,Pade NG,Musyl MK,Schaefer KM,Fuller DW,Brunnschweiler JM,Doyle TK,Houghton JD,Hays GC,Jones CS,Noble LR,Wearmouth VJ,Southall EJ,Sims DW

更新日期：2010-06-24 00:00:00

abstract：:Bottom trawling is a non-selective commercial fishing technique whereby heavy nets and gear are pulled along the sea floor. The direct impact of this technique on fish populations and benthic communities has received much attention, but trawling can also modify the physical properties of seafloor sediments, water–sedi...

journal_title：Nature

authors： Puig P,Canals M,Company JB,Martín J,Amblas D,Lastras G,Palanques A

更新日期：2012-09-13 00:00:00

abstract：:During the evolution of the beta-globin family gene in vertebrates, different globin genes acquired different developmental patterns of expression. In mammals, specific 'embryonic' beta-like globins are synthesized in the earliest erythroid cells, which differentiate in the yolk sac of the embryo. In most mammals the ...

journal_title：Nature

authors： Chada K,Magram J,Costantini F

更新日期：1986-02-20 00:00:00

abstract：:Protein structures are stabilized by hydrophobic and van der Waals forces, and by hydrogen bonds. The relation between these thermodynamic quantities and the actual three-dimensional structure of proteins can not be calculated precisely. However, certain empirical relations have been discovered. Hydrophobic energy is ...

journal_title：Nature

authors： Miller S,Lesk AM,Janin J,Chothia C

更新日期：1987-08-27 00:00:00

abstract：:Regulatory T (T(reg)) cells are a critical sub-population of CD4+ T cells that are essential for maintaining self tolerance and preventing autoimmunity, for limiting chronic inflammatory diseases, such as asthma and inflammatory bowel disease, and for regulating homeostatic lymphocyte expansion. However, they also sup...

journal_title：Nature

authors： Collison LW,Workman CJ,Kuo TT,Boyd K,Wang Y,Vignali KM,Cross R,Sehy D,Blumberg RS,Vignali DA

更新日期：2007-11-22 00:00:00

abstract：:Neurons in the visual cortex respond preferentially to edge-like stimuli of a particular orientation. It is a long-standing hypothesis that orientation selectivity arises during development through the activity-dependent refinement of cortical circuitry. Unambiguous evidence for such a process has, however, remained e...

journal_title：Nature

authors： Wolf F,Geisel T

更新日期：1998-09-03 00:00:00

abstract：:Constructing agents with planning capabilities has long been one of the main challenges in the pursuit of artificial intelligence. Tree-based planning methods have enjoyed huge success in challenging domains, such as chess1 and Go2, where a perfect simulator is available. However, in real-world problems, the dynamics ...

journal_title：Nature

authors： Schrittwieser J,Antonoglou I,Hubert T,Simonyan K,Sifre L,Schmitt S,Guez A,Lockhart E,Hassabis D,Graepel T,Lillicrap T,Silver D

更新日期：2020-12-01 00:00:00

abstract：:Several systems, including contractile tail bacteriophages, the type VI secretion system and R-type pyocins, use a multiprotein tubular apparatus to attach to and penetrate host cell membranes. This macromolecular machine resembles a stretched, coiled spring (or sheath) wound around a rigid tube with a spike-shaped pr...

journal_title：Nature

authors： Taylor NM,Prokhorov NS,Guerrero-Ferreira RC,Shneider MM,Browning C,Goldie KN,Stahlberg H,Leiman PG

更新日期：2016-05-19 00:00:00

abstract：:Establishment and maintenance of proper architecture is essential for endoplasmic reticulum (ER) function. Homotypic membrane fusion is required for ER biogenesis and maintenance, and has been shown to depend on GTP hydrolysis. Here we demonstrate that Drosophila Atlastin--the fly homologue of the mammalian GTPase atl...

journal_title：Nature

authors： Orso G,Pendin D,Liu S,Tosetto J,Moss TJ,Faust JE,Micaroni M,Egorova A,Martinuzzi A,McNew JA,Daga A

更新日期：2009-08-20 00:00:00

abstract：:Nuclear pore complexes reside in the nuclear envelope of eukaryotic cells and mediate the nucleocytoplasmic exchange of macromolecules. Traffic is regulated by mobile transport receptors that target their cargo to the central translocation channel, where phenylalanine-glycine-rich repeats serve as binding sites. The s...

journal_title：Nature

authors： Beck M,Lucić V,Förster F,Baumeister W,Medalia O

更新日期：2007-10-04 00:00:00

abstract：:PIWI-interacting RNAs (piRNAs) silence transposons to maintain genome integrity in animal germ lines. piRNAs are classified as primary and secondary piRNAs, depending on their biogenesis machinery. Primary piRNAs are processed from long non-coding RNA precursors transcribed from piRNA clusters in the genome through th...

journal_title：Nature

authors： Nishimasu H,Ishizu H,Saito K,Fukuhara S,Kamatani MK,Bonnefond L,Matsumoto N,Nishizawa T,Nakanaga K,Aoki J,Ishitani R,Siomi H,Siomi MC,Nureki O

更新日期：2012-11-08 00:00:00

abstract：:We have postulated that an excitatory postsynaptic potential (e.p.s.p.) may open voltage-sensitive K+ ('M') channels, in an appropriate depolarizing range, and that this could alter the e.p.s.p. waveform. Consequently, the fast e.p.s.p. in neurones of sympathetic ganglia, elicited by a nicotinic action of acetylcholin...

journal_title：Nature

authors： Tosaka T,Tasaka J,Miyazaki T,Libet B

更新日期：1983-09-08 00:00:00

abstract：:The importance of the dopaminergic system in brain function has been emphasized by its association with neurological and psychiatric disorders such as Parkinson's disease and schizophrenia. On the basis of their biochemical and pharmacological characteristics, dopamine receptors are classified into D1 and D2 subtypes....

journal_title：Nature

authors： Zhou QY,Grandy DK,Thambi L,Kushner JA,Van Tol HH,Cone R,Pribnow D,Salon J,Bunzow JR,Civelli O

更新日期：1990-09-06 00:00:00