Poly(dA).poly(dT) is a B-type double helix with a distinctively narrow minor groove.

abstract：:Touch and mechanical pain are first detected at our largest sensory surface, the skin. The cell bodies of sensory neurons that detect such stimuli are located in the dorsal root ganglia, and subtypes of these neurons are specialized to detect specific modalities of mechanical stimuli. Molecules have been identified th...

journal_title：Nature

authors： Wetzel C,Hu J,Riethmacher D,Benckendorff A,Harder L,Eilers A,Moshourab R,Kozlenkov A,Labuz D,Caspani O,Erdmann B,Machelska H,Heppenstall PA,Lewin GR

更新日期：2007-01-11 00:00:00

abstract：:In 1975-79, joint expeditions from Yale University and the Geological Survey of Pakistan (YGSP) recovered fossil lorisids in the Siwalik Group of Pakistan from four localities, spanning a period before 10 Myr ago to about 7 Myr ago. In three of the localities, only isolated teeth or fragments were found, whereas the f...

journal_title：Nature

authors： Jacobs LL

更新日期：1981-02-12 00:00:00

abstract：:Abyssal-hill-bounding faults that pervade the oceanic crust are the most common tectonic feature on the surface of the Earth. The recognition that these faults form at plate spreading centres came with the plate tectonic revolution. Recent observations reveal a large range of fault sizes and orientations; numerical mo...

journal_title：Nature

authors： Buck WR,Lavier LL,Poliakov AN

更新日期：2005-04-07 00:00:00

abstract：:Framework cavities are the largest but least explored coral reef habitat. Previous dive studies of caverns, spaces below plate corals, rubble and artificial cavities suggest that cavity-dwelling (coelobite) filter-feeders are important in the trophodynamics of reefs. Quantitative community data are lacking, however, a...

journal_title：Nature

authors： Richter C,Wunsch M,Rasheed M,Kötter I,Badran MI

更新日期：2001-10-18 00:00:00

abstract：:Greek speakers say "omicronupsilonrho", Germans "schwanz" and the French "queue" to describe what English speakers call a 'tail', but all of these languages use a related form of 'two' to describe the number after one. Among more than 100 Indo-European languages and dialects, the words for some meanings (such as 'tail...

journal_title：Nature

authors： Pagel M,Atkinson QD,Meade A

更新日期：2007-10-11 00:00:00

abstract：:The study of planarian regeneration may help us to understand how we can rebuild organs and tissues after injury, disease or ageing. The robust regenerative abilities of planarians are based upon a population of totipotent stem cells (neoblasts), and among the organs regenerated by these animals is a well-organized ce...

journal_title：Nature

authors： Cebrià F,Kobayashi C,Umesono Y,Nakazawa M,Mineta K,Ikeo K,Gojobori T,Itoh M,Taira M,Sánchez Alvarado A,Agata K

更新日期：2002-10-10 00:00:00

abstract：:One reason for the failure of chemotherapy in the treatment of advanced cancers may be the outgrowth of multidrug-resistant tumour cells. Multidrug resistance has been modelled in numerous mammalian cell lines in which the phenotype is characterized by a pleiotropic cross-resistance to unrelated drugs. In the study re...

journal_title：Nature

authors： Kartner N,Evernden-Porelle D,Bradley G,Ling V

更新日期：1985-08-29 00:00:00

abstract：:Among the ten subtypes of mammalian voltage-gated calcium (Cav) channels, Cav3.1-Cav3.3 constitute the T-type, or the low-voltage-activated, subfamily, the abnormal activities of which are associated with epilepsy, psychiatric disorders and pain1-5. Here we report the cryo-electron microscopy structures of human Cav3....

journal_title：Nature

authors： Zhao Y,Huang G,Wu Q,Wu K,Li R,Lei J,Pan X,Yan N

更新日期：2019-12-01 00:00:00

abstract：:Self-reproduction is central to biological life for long-term sustainability and evolutionary adaptation. Although these traits would also be desirable in many engineered systems, the principles of self-reproduction have not been exploited in machine design. Here we create simple machines that act as autonomous modula...

journal_title：Nature

authors： Zykov V,Mytilinaios E,Adams B,Lipson H

更新日期：2005-05-12 00:00:00

abstract：:Since Bridgman's discovery of five solid water (H2O) ice phases1 in 1912, studies on the extraordinary polymorphism of H2O have documented more than seventeen crystalline and several amorphous ice structures2,3, as well as rich metastability and kinetic effects4,5. This unique behaviour is due in part to the geometric...

journal_title：Nature

authors： Millot M,Coppari F,Rygg JR,Correa Barrios A,Hamel S,Swift DC,Eggert JH

更新日期：2019-05-01 00:00:00

abstract：:How environmental cues regulate adult stem cell and cancer cell activity through surface receptors is poorly understood. Angiopoietin-like proteins (ANGPTLs), a family of seven secreted glycoproteins, are known to support the activity of haematopoietic stem cells (HSCs) in vitro and in vivo. ANGPTLs also have importan...

journal_title：Nature

authors： Zheng J,Umikawa M,Cui C,Li J,Chen X,Zhang C,Huynh H,Kang X,Silvany R,Wan X,Ye J,Cantó AP,Chen SH,Wang HY,Ward ES,Zhang CC

更新日期：2012-05-30 00:00:00

abstract：:Distinctive acute brain damage involving limbic and related brain regions develops in adult rats following sustained limbic seizures induced by systemic administration of kainic acid or dipiperidinoethane (DPE) or by intra-amygdaloid injection of kainic acid or folic acid. This seizure-brain damage (S-BD) syndrome is ...

journal_title：Nature

authors： Olney JW,de Gubareff T,Labruyere J

更新日期：1983-02-10 00:00:00

abstract：:The evolution of the middle ear is central to the discussion of how the first tetrapods adapted to life on land as well as their phylogeny. Here I report the discovery of the stapes of Acanthostega gunnari, from the Upper Devonian of east Greenland. This is the earliest tetrapod stapes so far described, and it throws ...

journal_title：Nature

authors： Clack JA

更新日期：1989-11-23 00:00:00

abstract：:Formation of catalytically active RNA structures within the spliceosome requires the assistance of proteins. However, little is known about the number and nature of proteins needed to establish and maintain the spliceosome's active site. Here we affinity-purified human spliceosomal C complexes and show that they catal...

journal_title：Nature

authors： Bessonov S,Anokhina M,Will CL,Urlaub H,Lührmann R

更新日期：2008-04-17 00:00:00

abstract：:A putative growth hormone receptor from rabbit liver and the growth hormone binding protein from rabbit serum have the same amino-terminal amino-acid sequence, indicating that the binding protein corresponds to the extracellular hormone-binding domain of the liver receptor. The complete amino-acid sequences derived fr...

journal_title：Nature

authors： Leung DW,Spencer SA,Cachianes G,Hammonds RG,Collins C,Henzel WJ,Barnard R,Waters MJ,Wood WI

更新日期：1987-12-10 00:00:00

abstract：:The origin and growth of magnetic fields in galaxies is still something of an enigma. It is generally assumed that seed fields are amplified over time through the dynamo effect, but there are few constraints on the timescale. It was recently demonstrated that field strengths as traced by rotation measures of distant (...

journal_title：Nature

authors： Bernet ML,Miniati F,Lilly SJ,Kronberg PP,Dessauges-Zavadsky M

更新日期：2008-07-17 00:00:00

abstract：:The cartilage and skin of animals, which are made up of more than fifty per cent water, are rather stiff (having elastic moduli of up to 100 megapascals) as well as tough and hard to break (with fracture energies of up to 9,000 joules per square metre). Such features make these biological materials mechanically superi...

journal_title：Nature

authors： Rauner N,Meuris M,Zoric M,Tiller JC

更新日期：2017-03-16 00:00:00

abstract：:Since the origins of agriculture, the scale of human cooperation and societal complexity has dramatically expanded. This fact challenges standard evolutionary explanations of prosociality because well-studied mechanisms of cooperation based on genetic relatedness, reciprocity and partner choice falter as people increa...

journal_title：Nature

authors： Purzycki BG,Apicella C,Atkinson QD,Cohen E,McNamara RA,Willard AK,Xygalatas D,Norenzayan A,Henrich J

更新日期：2016-02-18 00:00:00

abstract：:NMDA (N-methyl-d-aspartate) receptors (NMDARs) are a principal subtype of excitatory ligand-gated ion channel with prominent roles in physiological and disease processes in the central nervous system. Recognition that glycine potentiates NMDAR-mediated currents as well as being a requisite co-agonist of the NMDAR subt...

journal_title：Nature

authors： Nong Y,Huang YQ,Ju W,Kalia LV,Ahmadian G,Wang YT,Salter MW

更新日期：2003-03-20 00:00:00

abstract：:Interleukin (IL)-2 is a pleiotropic cytokine that is necessary to prevent chronic inflammation in the gastrointestinal tract1-4. The protective effects of IL-2 involve the generation, maintenance and function of regulatory T (Treg) cells4-8, and the use of low doses of IL-2 has emerged as a potential therapeutic strat...

journal_title：Nature

authors： Zhou L,Chu C,Teng F,Bessman NJ,Goc J,Santosa EK,Putzel GG,Kabata H,Kelsen JR,Baldassano RN,Shah MA,Sockolow RE,Vivier E,Eberl G,Smith KA,Sonnenberg GF

更新日期：2019-04-01 00:00:00

abstract：:Nuclear import of the NF-AT transcription factors during T-cell activation requires the calcium-activated phosphatase calcineurin, which unmasks nuclear-location signals on NF-AT. We show here that the nuclear import of NF-ATs is not sufficient to activate NF-AT target genes, as NF-ATs are subject to a futile cycling ...

journal_title：Nature

authors： Zhu J,McKeon F

更新日期：1999-03-18 00:00:00

abstract：:At one time the synthetic chemist's last resort, reactions catalysed by transition metals are now the preferred method for synthesizing many types of organic molecule. A recent success in this type of catalysis is the discovery of reactions that form bonds between carbon and heteroatoms (such as nitrogen, oxygen, sulp...

journal_title：Nature

authors： Hartwig JF

更新日期：2008-09-18 00:00:00

abstract：:Interleukin-5 (IL-5) specifically induces the differentiation of eosinophils, which are important in host defence and the pathogenesis of allergies and asthma. Structurally, IL-5 is a unique member of the short-chain helical-bundle subfamily of cytokines whose canonical motif contains four helices (A-D) arranged in an...

journal_title：Nature

authors： Dickason RR,Huston DP

更新日期：1996-02-15 00:00:00

abstract：:It is thought that in skeletal muscle excitation-contraction (EC) coupling, the release of Ca2+ from the sarcoplasmic reticulum is controlled by the dihydropyridine (DHP) receptor in the transverse tubular membrane, where it serves as the voltage sensor. We have shown previously that injection of an expression plasmid...

journal_title：Nature

authors： Tanabe T,Beam KG,Adams BA,Niidome T,Numa S

更新日期：1990-08-09 00:00:00

abstract：:Time-of-flight mass spectrometry-most notably matrix-assisted laser-desorption-ionization time-of-flight (MALDI-TOF) spectrometry-is an important class of techniques for the study of proteins and other biomolecules. Although these techniques provide excellent performance for masses up to about 20,000 daltons, there ha...

journal_title：Nature

authors： Hilton GC,Martinis JM,Wollman DA,Irwin KD,Dulcie LL,Gerber D,Gillevet PM,Twerenbold D

更新日期：1998-02-12 00:00:00

abstract：:The skin of mice contains dendritic epidermal cells carrying the Thy-1 antigen (Thy-1+ dEC) which express antigen receptors composed of the T-cell antigen receptor (TCR) gamma- and delta-chains. Although the role of the thymus in the generation of most T cells is well established, the involvement of the thymus in the ...

journal_title：Nature

authors： Havran WL,Allison JP

更新日期：1990-03-01 00:00:00

abstract：:Recent studies have suggested a critical role of specific gene loss in several embryonic tumours and certain adult cancers. In retinoblastoma, hemizygosity or homozygosity of a recessive mutant allele results in the loss of normal gene product, and this seems to cause the manifestation of the disorder. Familial polypo...

journal_title：Nature

authors： Okamoto M,Sasaki M,Sugio K,Sato C,Iwama T,Ikeuchi T,Tonomura A,Sasazuki T,Miyaki M

更新日期：1988-01-21 00:00:00

abstract：:CD4 and CD8 antigens are simultaneously expressed on most of the cortical thymocytes, that weakly express the T-cell antigen receptor(TCR)/CD3 complex. Mature peripheral T cells, however, strongly express the TCR complex and are positive for either CD4 or CD8. Nevertheless, a small percentage of peripheral CD3+ T cell...

journal_title：Nature

authors： Paliard X,Malefijt RW,de Vries JE,Spits H

更新日期：1988-10-13 00:00:00

abstract：:Epstein-Barr virus (EBV), a member of the herpes group of viruses and the aetiological agent of infectious mononucleosis, is usually thought of as a lymphotrophic virus with the ability to transform B lymphocytes. So the association of EBV with nasopharyngeal carcinoma is puzzling, especially given the lack of success...

journal_title：Nature

authors： Sixbey JW,Vesterinen EH,Nedrud JG,Raab-Traub N,Walton LA,Pagano JS

更新日期：1983-12-01 00:00:00

abstract：:RNase P is the only endonuclease responsible for processing the 5' end of transfer RNA by cleaving a precursor and leading to tRNA maturation. It contains an RNA component and a protein component and has been identified in all organisms. It was one of the first catalytic RNAs identified and the first that acts as a mu...

journal_title：Nature

authors： Krasilnikov AS,Yang X,Pan T,Mondragón A

更新日期：2003-02-13 00:00:00