A family of human CCAAT-box-binding proteins active in transcription and DNA replication: cloning and expression of multiple cDNAs.

abstract：:The rapid turnover of the mammalian intestinal epithelium is supported by stem cells located around the base of the crypt. In addition to the Lgr5 marker, intestinal stem cells have been associated with other markers that are expressed heterogeneously within the crypt base region. Previous quantitative clonal fate ana...

journal_title：Nature

authors： Ritsma L,Ellenbroek SIJ,Zomer A,Snippert HJ,de Sauvage FJ,Simons BD,Clevers H,van Rheenen J

更新日期：2014-03-20 00:00:00

abstract：:Historical ecologists working in the Neotropics argue that the present natural environment is an historical product of human intentionality and ingenuity, a creation that is imposed, built, managed and maintained by the collective multigenerational knowledge and experience of Native Americans. In the past 12,000 years...

journal_title：Nature

authors： Erickson CL

更新日期：2000-11-09 00:00:00

abstract：:Caste differentiation and division of labour are the hallmarks of insect societies and at the root of their ecological success. Kin selection predicts that caste determination should result from environmentally induced differences in gene expression, a prediction largely supported by empirical data. However, two excep...

journal_title：Nature

authors： Helms Cahan S,Keller L

更新日期：2003-07-17 00:00:00

abstract：:Recent studies have suggested that bone marrow cells possess a broad differentiation potential, being able to form new liver cells, cardiomyocytes and neurons. Several groups have attributed this apparent plasticity to 'transdifferentiation'. Others, however, have suggested that cell fusion could explain these results...

journal_title：Nature

authors： Alvarez-Dolado M,Pardal R,Garcia-Verdugo JM,Fike JR,Lee HO,Pfeffer K,Lois C,Morrison SJ,Alvarez-Buylla A

更新日期：2003-10-30 00:00:00

abstract：:A recombinant adenovirus serotype 5 (rAd5) vector-based vaccine for HIV-1 has recently failed in a phase 2b efficacy study in humans. Consistent with these results, preclinical studies have demonstrated that rAd5 vectors expressing simian immunodeficiency virus (SIV) Gag failed to reduce peak or setpoint viral loads a...

journal_title：Nature

authors： Liu J,O'Brien KL,Lynch DM,Simmons NL,La Porte A,Riggs AM,Abbink P,Coffey RT,Grandpre LE,Seaman MS,Landucci G,Forthal DN,Montefiori DC,Carville A,Mansfield KG,Havenga MJ,Pau MG,Goudsmit J,Barouch DH

更新日期：2009-01-01 00:00:00

abstract：:A short, 14-amino-acid segment called SP1, located in the Gag structural protein1, has a critical role during the formation of the HIV-1 virus particle. During virus assembly, the SP1 peptide and seven preceding residues fold into a six-helix bundle, which holds together the Gag hexamer and facilitates the formation o...

journal_title：Nature

authors： Dick RA,Zadrozny KK,Xu C,Schur FKM,Lyddon TD,Ricana CL,Wagner JM,Perilla JR,Ganser-Pornillos BK,Johnson MC,Pornillos O,Vogt VM

更新日期：2018-08-01 00:00:00

abstract：:The four-chambered mammalian heart develops from two fields of cardiac progenitor cells distinguished by their spatiotemporal patterns of differentiation and contributions to the definitive heart. The first heart field differentiates earlier in lateral plate mesoderm, generates the linear heart tube and ultimately giv...

journal_title：Nature

authors： Zhou Y,Cashman TJ,Nevis KR,Obregon P,Carney SA,Liu Y,Gu A,Mosimann C,Sondalle S,Peterson RE,Heideman W,Burns CE,Burns CG

更新日期：2011-05-29 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：:Sex is expensive. A population of females that reproduce asexually should prima facie have twice the growth rate of an otherwise equivalent anisogamous sexual population lacking paternal care, or a population with modes of paternal care that can be co-opted by parthenogenetic females. The two leading theories for the ...

journal_title：Nature

authors： Siller S,Department of Zoology, University of Oxford, UK. steven.siller@zoo.ox.ac.uk.

更新日期：2001-06-07 00:00:00

abstract：:DNA lesions interfere with DNA and RNA polymerase activity. Cyclobutane pyrimidine dimers and photoproducts generated by ultraviolet irradiation cause stalling of RNA polymerase II, activation of transcription-coupled repair enzymes, and inhibition of RNA synthesis. During the S phase of the cell cycle, collision of r...

journal_title：Nature

authors： Kruhlak M,Crouch EE,Orlov M,Montaño C,Gorski SA,Nussenzweig A,Misteli T,Phair RD,Casellas R

更新日期：2007-06-07 00:00:00

abstract：:T cells bearing the alpha beta receptor can specifically react with target cells coated with staphylococcal enterotoxin and expressing major histocompatibility complex class II molecules; these responses depend on which variable region (V) of the receptor's beta-subunit is used. We have now examined whether a similar ...

journal_title：Nature

authors： Rust CJ,Verreck F,Vietor H,Koning F

更新日期：1990-08-09 00:00:00

abstract：:Geochemical and sedimentological evidence suggest that the rapid climate warming oscillations of the last ice age, the Dansgaard-Oeschger cycles, were coupled to fluctuations in North Atlantic meridional overturning circulation through its regulation of poleward heat flux. The balance between cold meltwater from the n...

journal_title：Nature

authors： Schmidt MW,Vautravers MJ,Spero HJ

更新日期：2006-10-05 00:00:00

abstract：:Quasicrystals are unique structures with long-range order but no periodicity. Their properties have intrigued scientists ever since their discovery and initial theoretical analysis. The lack of periodicity excludes the possibility of describing quasicrystal structures with well-established analytical tools, including ...

journal_title：Nature

authors： Freedman B,Bartal G,Segev M,Lifshitz R,Christodoulides DN,Fleischer JW

更新日期：2006-04-27 00:00:00

abstract：:Analogous to the progression of events in the opiate receptor-enkaphalin area, the first reports that benzodiazepines have selective and specific high-affinity binding sites in brain have stimulated a search for the endogenous 'ligand' or substance that might normally act at these sites. Braestrup and co-workers have ...

journal_title：Nature

authors： Tenen SS,Hirsch JD

更新日期：1980-12-11 00:00:00

abstract：:The search to understand the mechanisms regulating brain wiring has relied on biochemical purification approaches in vertebrates and genetic approaches in invertebrates to identify molecular cues and receptors for axon guidance. Here we describe a phenotype-based gene-trap screen in mice designed for the large-scale i...

journal_title：Nature

authors： Leighton PA,Mitchell KJ,Goodrich LV,Lu X,Pinson K,Scherz P,Skarnes WC,Tessier-Lavigne M

更新日期：2001-03-08 00:00:00

abstract：:The innate immune system is critical for the early detection of invading pathogens and for initiating cellular host defence countermeasures, which include the production of type I interferon (IFN). However, little is known about how the innate immune system is galvanized to respond to DNA-based microbes. Here we show ...

journal_title：Nature

authors： Ishikawa H,Ma Z,Barber GN

更新日期：2009-10-08 00:00:00

abstract：:Appropriate repair of DNA lesions and the inhibition of DNA repair activities at telomeres are crucial to prevent genomic instability. By fuelling the generation of genetic alterations and by compromising cell viability, genomic instability is a driving force in cancer and ageing. Here we identify MAD2L2 (also known a...

journal_title：Nature

authors： Boersma V,Moatti N,Segura-Bayona S,Peuscher MH,van der Torre J,Wevers BA,Orthwein A,Durocher D,Jacobs JJL

更新日期：2015-05-28 00:00:00

abstract：:The normal cellular form of prion protein (PrPC) is a precursor to the pathogenic protease-resistant forms (PrPSc) believed to cause scrapie, bovine spongiform encephalopathy (BSE) and Creutzfeldt-Jakob disease. Its amino terminus contains the octapeptide PHGGGWGQ, which is repeated four times and is among the best-pr...

journal_title：Nature

authors： Brown DR,Qin K,Herms JW,Madlung A,Manson J,Strome R,Fraser PE,Kruck T,von Bohlen A,Schulz-Schaeffer W,Giese A,Westaway D,Kretzschmar H

更新日期：1997-12-18 00:00:00

abstract：:SEVERAL dioecious marine brown algae have been valuable in studying chemical communication during sexual reproduction. For example, female gametes of Ectocarpus siliculosus, Cutleria multifida and Fucus serratus secrete olefinic hydrocarbons into the seawater to attract male gametes(1-3). A more complex system is foun...

journal_title：Nature

authors： Müller DG,Gassmann G,Lüning K

更新日期：1979-05-31 00:00:00

abstract：:The widely occurring tetradecapeptide somatostatin (SRIF-14) has been variously implicated as a neurotransmitter, a neurohormone, a cybernin (local regulatory factor) and a hormone. In the first isolation of SRIF-14 from hypothalamic extracts and subsequent extracts of other tissues, peptides of higher molecular weigh...

journal_title：Nature

authors： Mandarino L,Stenner D,Blanchard W,Nissen S,Gerich J,Ling N,Brazeau P,Bohlen P,Esch F,Guillemin R

更新日期：1981-05-07 00:00:00

abstract：:The majority of human emerging infectious diseases are zoonotic, with viruses that originate in wild mammals of particular concern (for example, HIV, Ebola and SARS). Understanding patterns of viral diversity in wildlife and determinants of successful cross-species transmission, or spillover, are therefore key goals f...

journal_title：Nature

authors： Olival KJ,Hosseini PR,Zambrana-Torrelio C,Ross N,Bogich TL,Daszak P

更新日期：2017-06-29 00:00:00

abstract：:The current outbreak of coronavirus disease-2019 (COVID-19) poses unprecedented challenges to global health1. The new coronavirus responsible for this outbreak-severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)-shares high sequence identity to SARS-CoV and a bat coronavirus, RaTG132. Although bats may be the...

journal_title：Nature

authors： Xiao K,Zhai J,Feng Y,Zhou N,Zhang X,Zou JJ,Li N,Guo Y,Li X,Shen X,Zhang Z,Shu F,Huang W,Li Y,Zhang Z,Chen RA,Wu YJ,Peng SM,Huang M,Xie WJ,Cai QH,Hou FH,Chen W,Xiao L,Shen Y

更新日期：2020-07-01 00:00:00

abstract：:The ability to pattern surfaces on a microscopic length scale is of importance for technological applications such as the fabrication of microelectronic circuits and digital storage media. Devices fabricated entirely from polymers are now available, opening up the possibility of adapting polymer processing technologie...

journal_title：Nature

authors： Higgins AM,Jones RA

更新日期：2000-03-30 00:00:00

abstract：:During the past ten years, coupled quantum wells have emerged as a promising system for experiments on Bose condensation of excitons, with numerous theoretical and experimental studies aimed at the demonstration of this effect. One of the issues driving these studies is the possibility of long-range coherent transport...

journal_title：Nature

authors： Snoke D,Denev S,Liu Y,Pfeiffer L,West K

更新日期：2002-08-15 00:00:00

abstract：:Sex chromosomes in males of most eutherian mammals share only a small homologous segment, the pseudoautosomal region (PAR), in which the formation of double-strand breaks (DSBs), pairing and crossing over must occur for correct meiotic segregation1,2. How cells ensure that recombination occurs in the PAR is unknown. H...

journal_title：Nature

authors： Acquaviva L,Boekhout M,Karasu ME,Brick K,Pratto F,Li T,van Overbeek M,Kauppi L,Camerini-Otero RD,Jasin M,Keeney S

更新日期：2020-06-01 00:00:00

abstract：:Four-residue beta-turns and larger loop structures represent a significant fraction of globular protein surfaces and play an important role in determining the conformation and specificity of enzyme active sites and antibody-combining sites. Turns are an attractive starting point to develop protein design methods, as t...

journal_title：Nature

authors： Hynes TR,Kautz RA,Goodman MA,Gill JF,Fox RO

更新日期：1989-05-04 00:00:00

abstract：:Planetary aurorae are formed by energetic charged particles streaming along the planet's magnetic field lines into the upper atmosphere from the surrounding space environment. Earth's main auroral oval is formed through interactions with the solar wind, whereas that at Jupiter is formed through interactions with plasm...

journal_title：Nature

authors： Stallard T,Miller S,Melin H,Lystrup M,Cowley SW,Bunce EJ,Achilleos N,Dougherty M

更新日期：2008-06-19 00:00:00

abstract：:In metazoans, the Ras-Raf-MEK (mitogen-activated protein-kinase kinase)-ERK (extracellular signal-regulated kinase) signalling pathway relays extracellular stimuli to elicit changes in cellular function and gene expression. Aberrant activation of this pathway through oncogenic mutations is responsible for a large prop...

journal_title：Nature

authors： Brennan DF,Dar AC,Hertz NT,Chao WC,Burlingame AL,Shokat KM,Barford D

更新日期：2011-04-21 00:00:00

abstract：:Many galaxies are thought to have supermassive black holes at their centres-more than a million times the mass of the Sun. Measurements of stellar velocities and the discovery of variable X-ray emission have provided strong evidence in favour of such a black hole at the centre of the Milky Way, but have hitherto been ...

journal_title：Nature

authors： Schödel R,Ott T,Genzel R,Hofmann R,Lehnert M,Eckart A,Mouawad N,Alexander T,Reid MJ,Lenzen R,Hartung M,Lacombe F,Rouan D,Gendron E,Rousset G,Lagrange AM,Brandner W,Ageorges N,Lidman C,Moorwood AF,Spyromilio J,Hu

更新日期：2002-10-17 00:00:00

abstract：:Efforts to ablate soft tissue with conventional lasers have been limited by collateral damage and by concern over potential photochemical effects. Motivated by the thermal-confinement model, past infrared investigations targeted the OH-stretch mode of water with fast pulses from lasers emitting near 3,000 nm (refs 1, ...

journal_title：Nature

authors： Edwards G,Logan R,Copeland M,Reinisch L,Davidson J,Johnson B,Maciunas R,Mendenhall M,Ossoff R,Tribble J

更新日期：1994-09-29 00:00:00