Bioactive cell-like hybrids coassembled from (glyco)dendrimersomes with bacterial membranes.

abstract：:How useful can machine learning be in a quantum laboratory? Here we raise the question of the potential of intelligent machines in the context of scientific research. A major motivation for the present work is the unknown reachability of various entanglement classes in quantum experiments. We investigate this question...

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

authors： Melnikov AA,Poulsen Nautrup H,Krenn M,Dunjko V,Tiersch M,Zeilinger A,Briegel HJ

更新日期：2018-02-06 00:00:00

abstract：:Inactivation of the p53 pathway represents the most common molecular defect of human cancer. But in the setting of melanoma, a highly aggressive and invariably fatal malignancy in its advanced disseminated form, mutation/deletion of p53 is relatively rare, whereas its positive regulator ARF is often lost. Here, we sho...

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

authors： Ha L,Ichikawa T,Anver M,Dickins R,Lowe S,Sharpless NE,Krimpenfort P,Depinho RA,Bennett DC,Sviderskaya EV,Merlino G

更新日期：2007-06-26 00:00:00

abstract：:Chromosome region 11p15.5 harbors unidentified genes involved in neoplasms and in the genetic disease Beckwith-Wiedemann syndrome. The genetic analysis of a 170-kb region at 11p15.5 between loci D11S601 and D11S679 resulted in the identification of six transcriptional units. Three genes, hNAP2, CDKN1C, and KVLQT1, are...

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

authors： Schwienbacher C,Sabbioni S,Campi M,Veronese A,Bernardi G,Menegatti A,Hatada I,Mukai T,Ohashi H,Barbanti-Brodano G,Croce CM,Negrini M

更新日期：1998-03-31 00:00:00

abstract：:The GroE chaperonins assist substrate protein (SP) folding by cycling through several conformational states. With each cycle the SP is, in turn, captured, unfolded, briefly encapsulated (t1/2 ∼ 1 s), and released by the chaperonin complex. The protein-folding functional form is the US-football-shaped GroEL:GroES2 comp...

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

authors： Fei X,Ye X,LaRonde NA,Lorimer GH

更新日期：2014-09-02 00:00:00

abstract：:The formation of viable genetic chimeras in mammals through the transfer of cells between siblings in utero is rare. Using microsatellite DNA markers, we show here that chimerism in marmoset (Callithrix kuhlii) twins is not limited to blood-derived hematopoietic tissues as was previously described. All somatic tissue ...

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

authors： Ross CN,French JA,Ortí G

更新日期：2007-04-10 00:00:00

abstract：:Protein misfolding is the molecular basis for several human diseases. How the primary amino acid sequence triggers misfolding and determines the benign or toxic character of the misfolded protein remains largely obscure. Among proteins that misfold, polyglutamine (polyQ) expansion proteins provide an interesting case:...

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

authors： Duennwald ML,Jagadish S,Muchowski PJ,Lindquist S

更新日期：2006-07-18 00:00:00

abstract：:In many plant species only a small proportion of buds yield branches. Both the timing and extent of bud activation are tightly regulated to produce specific branching architectures. For example, the primary shoot apex can inhibit the activation of lateral buds. This process is termed apical dominance and is dependent ...

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

authors： Prusinkiewicz P,Crawford S,Smith RS,Ljung K,Bennett T,Ongaro V,Leyser O

更新日期：2009-10-13 00:00:00

abstract：:Human cytomegalovirus (HCMV) resides latently in hematopoietic cells of the bone marrow. Although viral genomes can be found in CD14+ monocytes and CD34+ progenitor cells, the primary reservoir for latent cytomegalovirus is unknown. We analyzed human hematopoietic subpopulations infected in vitro with a recombinant vi...

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

authors： Goodrum FD,Jordan CT,High K,Shenk T

更新日期：2002-12-10 00:00:00

abstract：:We recently have shown that mice deficient for the 86-kDa component (Ku80) of the DNA-dependent protein kinase exhibit growth retardation and a profound deficiency in V(D)J (variable, diversity, and joining) recombination. These defects may be related to abnormalities in DNA metabolism that arise from the inability of...

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

authors： Nussenzweig A,Sokol K,Burgman P,Li L,Li GC

更新日期：1997-12-09 00:00:00

abstract：:We previously developed a biological containment system using recombinant Salmonella Typhimurium strains that are attenuated yet capable of synthesizing protective antigens. The regulated delayed attenuation and programmed self-destructing features designed into these S. Typhimurium strains enable them to efficiently ...

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

authors： Kong W,Brovold M,Koeneman BA,Clark-Curtiss J,Curtiss R 3rd

更新日期：2012-11-20 00:00:00

abstract：:Aminoglycoside ototoxicity has been related to a surprisingly large number of cellular structures and metabolic pathways. The finding that patients with mutations in mitochondrial rRNA are hypersusceptible to aminoglycoside-induced hearing loss has indicated a possible role for mitochondrial protein synthesis. To stud...

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

authors： Hobbie SN,Akshay S,Kalapala SK,Bruell CM,Shcherbakov D,Böttger EC

更新日期：2008-12-30 00:00:00

abstract：:To facilitate analysis of plant cell wall polysaccharide structure and composition, we cloned 74 genes encoding polysaccharide-degrading enzymes from Aspergillus nidulans, Aspergillus fumigatus, and Neurospora crassa and expressed the genes as secreted proteins with C-terminal Myc and 6x His tags. Most of the recombin...

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

authors： Bauer S,Vasu P,Persson S,Mort AJ,Somerville CR

更新日期：2006-07-25 00:00:00

abstract：:Diarthrodial joints are essential for load bearing and locomotion. Physiologically, articular cartilage sustains millions of cycles of mechanical loading. Chondrocytes, the cells in cartilage, regulate their metabolic activities in response to mechanical loading. Pathological mechanical stress can lead to maladaptive ...

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

authors： Lee W,Leddy HA,Chen Y,Lee SH,Zelenski NA,McNulty AL,Wu J,Beicker KN,Coles J,Zauscher S,Grandl J,Sachs F,Guilak F,Liedtke WB

更新日期：2014-11-25 00:00:00

abstract：:There are approximately 350 non-odorant G protein-coupled receptors (GPCRs) encoded by the human genome, many of which are predicted to be potential therapeutic targets, but there are only two structures available to represent the whole of the family. We hypothesized that improving the detergent stability of these rec...

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

authors： Serrano-Vega MJ,Magnani F,Shibata Y,Tate CG

更新日期：2008-01-22 00:00:00

abstract：:Cell cultures of Catharanthus roseus were supplied with [2-13C, 3-2H]-deoxyxylulose or [2-13C,4-2H]1-deoxyxylulose. Lutein and chlorophylls were isolated from the cell mass, and hydrolysis of the chlorophyll mixtures afforded phytol. Isotope labeling patterns of phytol and lutein were determined by 2H NMR and 1H,2H-de...

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

authors： Arigoni D,Eisenreich W,Latzel C,Sagner S,Radykewicz T,Zenk MH,Bacher A

更新日期：1999-02-16 00:00:00

abstract：:Cadherin/catenin-based adhesions coordinate cellular growth, survival, migration, and differentiation within a tissue by mechanically anchoring cells to their neighbors. They also intersect with diverse signaling pathways in development and cancer. Although the adhesive functions of adherens junction proteins are well...

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

authors： Livshits G,Kobielak A,Fuchs E

更新日期：2012-03-27 00:00:00

abstract：:Increased cardiovascular mortality occurs in diabetic patients with or without coronary artery disease and is attributed to the presence of diabetic cardiomyopathy. One potential mechanism is hyperglycemia that has been reported to activate protein kinase C (PKC), preferentially the beta isoform, which has been associ...

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

authors： Wakasaki H,Koya D,Schoen FJ,Jirousek MR,Ways DK,Hoit BD,Walsh RA,King GL

更新日期：1997-08-19 00:00:00

abstract：:The intestinal lamina propria (LP) is a major effector site of the mucosal immune system where antigen-specific and antigen-nonspecific factors shape the functional responses of CD4+ T helper cells. To study the functional differentiation of LP T helper cells we utilized DO11.10 T cell receptor (TCR) transgenic (Tg) m...

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

authors： Hurst SD,Sitterding SM,Ji S,Barrett TA

更新日期：1997-04-15 00:00:00

abstract：:Synaptically released glutamate has been identified as a signal coupling excitatory neuronal activity to increased glucose utilization. The proposed mechanism of this coupling involves glutamate uptake into astrocytes resulting in increased intracellular Na+ (Nai+) and activation of the Na+/K+-ATPase. Increased metabo...

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

authors： Chatton JY,Pellerin L,Magistretti PJ

更新日期：2003-10-14 00:00:00

abstract：:We describe two Drosophila melanogaster transcription units that are highly homologous to a rat Na+-channel cDNA. They appear to encode the major subunits of two distinct Na+-channel proteins. One of these maps to the second chromosome and is identical to a Na+-channel gene whose partial sequence has been previously r...

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

authors： Ramaswami M,Tanouye MA

更新日期：1989-03-01 00:00:00

abstract：:A genomic region on distal mouse chromosome 1 and its syntenic human counterpart 1q23-42 show strong evidence of harboring lupus susceptibility genes. We found evidence of linkage at 1q32.2 in a targeted genome scan of 1q21-43 in 126 lupus multiplex families containing 151 affected sibpairs (nonparametric linkage scor...

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

authors： Wu H,Boackle SA,Hanvivadhanakul P,Ulgiati D,Grossman JM,Lee Y,Shen N,Abraham LJ,Mercer TR,Park E,Hebert LA,Rovin BH,Birmingham DJ,Chang DM,Chen CJ,McCurdy D,Badsha HM,Thong BY,Chng HH,Arnett FC,Wallace DJ,Yu CY

更新日期：2007-03-06 00:00:00

abstract：:Toxoplasma gondii is a highly successful protozoan parasite that infects all warm-blooded animals and causes severe disease in immunocompromised and immune-naïve humans. It has an unusual global population structure: In North America and Europe, isolated strains fall predominantly into four largely clonal lineages, bu...

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

authors： Minot S,Melo MB,Li F,Lu D,Niedelman W,Levine SS,Saeij JP

更新日期：2012-08-14 00:00:00

abstract：:Understanding Hadean (>4 Ga) Earth requires knowledge of its crust. The composition of the crust and volatiles migrating through it directly influence the makeup of the atmosphere, the composition of seawater, and nutrient availability. Despite its importance, there is little known and less agreed upon regarding the n...

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

authors： Boehnke P,Bell EA,Stephan T,Trappitsch R,Keller CB,Pardo OS,Davis AM,Harrison TM,Pellin MJ

更新日期：2018-06-19 00:00:00

abstract：:As the rate and magnitude of climate change accelerate, understanding the consequences becomes increasingly important. Species distribution models (SDMs) based on current ecological niche constraints are used to project future species distributions. These models contain assumptions that add to the uncertainty in model...

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

authors： Wiens JA,Stralberg D,Jongsomjit D,Howell CA,Snyder MA

更新日期：2009-11-17 00:00:00

abstract：:The sporulation of Saccharomyces cerevisiae in the presence of [2-13C]acetate was studied by 13C NMR spectroscopy. The fate of 13C label was analyzed in vivo and in cell extracts. During the first 4 hr of sporulation the major metabolite produced from [2-13C]acetate utilization was glutamate. From the labeling pattern...

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

authors： Dickinson JR,Dawes IW,Boyd AS,Baxter RL

更新日期：1983-10-01 00:00:00

abstract：:Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is the causative agent of the ongoing coronavirus disease 2019 (COVID-19) pandemic that is a serious global health problem. Evasion of IFN-mediated antiviral signaling is a common defense strategy that pathogenic viruses use to replicate and propagate in the...

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

authors： Miorin L,Kehrer T,Sanchez-Aparicio MT,Zhang K,Cohen P,Patel RS,Cupic A,Makio T,Mei M,Moreno E,Danziger O,White KM,Rathnasinghe R,Uccellini M,Gao S,Aydillo T,Mena I,Yin X,Martin-Sancho L,Krogan NJ,Chanda SK,Schot

更新日期：2020-11-10 00:00:00

abstract：:One of the ultimate objectives of de novo protein design is to realize systems capable of catalyzing redox reactions on substrates. This goal is challenging as redox-active proteins require design considerations for both the reduced and oxidized states of the protein. In this paper, we describe the spectroscopic chara...

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

authors： Tegoni M,Yu F,Bersellini M,Penner-Hahn JE,Pecoraro VL

更新日期：2012-12-26 00:00:00

abstract：:Small noncoding microRNAs (miRNAs) can contribute to cancer development and progression and are differentially expressed in normal tissues and cancers. From a large-scale miRnome analysis on 540 samples including lung, breast, stomach, prostate, colon, and pancreatic tumors, we identified a solid cancer miRNA signatur...

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

authors： Volinia S,Calin GA,Liu CG,Ambs S,Cimmino A,Petrocca F,Visone R,Iorio M,Roldo C,Ferracin M,Prueitt RL,Yanaihara N,Lanza G,Scarpa A,Vecchione A,Negrini M,Harris CC,Croce CM

更新日期：2006-02-14 00:00:00

abstract：:NAD(P)H:quinone oxidoreductase (NQOR; EC 1.6.99.2) is a homodimeric enzyme which catalyzes the reduction of quinones, azo dyes, and other electron acceptors by NADPH or NADH. To pursue subunit functional studies, we expressed a wild-type/mutant heterodimer of NQOR in Escherichia coli. The wild-type subunit of the hete...

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

authors： Cui K,Lu AY,Yang CS

更新日期：1995-02-14 00:00:00

abstract：:Cell couples have been formed by mixing an antigen- and Ia-specific cloned helper T-cell line with a B-cell hybridoma presenting the antigen. By immunofluorescence observations, we have shown that the microtubule-organizing center (MTOC) inside the helper T cell, but not in the bound antigen-presenting cell, becomes o...

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

authors： Kupfer A,Swain SL,Janeway CA Jr,Singer SJ

更新日期：1986-08-01 00:00:00