Enhanced release of dopamine- -hydroxylase from sympathetic nerves by calcium and phenoxybenzamine and its reversal by prostaglandins.

abstract：:Using previously isolated Bacillus brevis strains that secrete large amounts of proteins but little protease into the medium, we have developed a host-vector system for very efficient synthesis and secretion of heterologous proteins. The multiple promoters and the signal-peptide-coding region of the MWP gene, a struct...

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

authors： Yamagata H,Nakahama K,Suzuki Y,Kakinuma A,Tsukagoshi N,Udaka S

更新日期：1989-05-01 00:00:00

abstract：:Confined liquid crystals (LC) provide a unique platform for technological applications and for the study of LC properties, such as bulk elasticity, surface anchoring, and topological defects. In this work, lyotropic chromonic liquid crystals (LCLCs) are confined in spherical droplets, and their director configurations...

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

authors： Jeong J,Davidson ZS,Collings PJ,Lubensky TC,Yodh AG

更新日期：2014-02-04 00:00:00

abstract：:We investigated the binding of 125I-labeled alpha-inhibin-92 (a 92-residue peptide) to human pituitary membrane preparations. Unlabeled alpha-inhibin-92 competed effectively with the labeled peptide for binding to the membranes. Binding was also inhibited by both alpha-inhibin-52 and alpha-inhibin-31, but less effecti...

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

authors： Ramasharma K,Li CH

更新日期：1987-06-01 00:00:00

abstract：:Despite a growing number of ion channel genes implicated in hereditary ataxia, it remains unclear how ion channel mutations lead to loss-of-function or death of cerebellar neurons. Mutations in the gene KCNMA1, encoding the α-subunit of the BK channel have emerged as responsible for a variety of neurological phenotype...

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

authors： Du X,Carvalho-de-Souza JL,Wei C,Carrasquel-Ursulaez W,Lorenzo Y,Gonzalez N,Kubota T,Staisch J,Hain T,Petrossian N,Xu M,Latorre R,Bezanilla F,Gomez CM

更新日期：2020-03-17 00:00:00

abstract：:Recombinant full-length CD4 expressed in Spodoptera frugiperda 9 cells with the baculovirus system was electroinserted in erythrocyte (RBC) membranes. Of the inserted CD4, 70% was "correctly" oriented as shown by fluorescence quenching experiments with fluorescein-labeled CD4. The inserted CD4 displayed the same epito...

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

authors： Zeira M,Tosi PF,Mouneimne Y,Lazarte J,Sneed L,Volsky DJ,Nicolau C

更新日期：1991-05-15 00:00:00

abstract：:Vascular endothelial growth factors (VEGFs) and their receptors (VEGFRs) are key drivers of blood and lymph vessel formation in development, but also in several pathological processes. VEGF-C signaling through VEGFR-3 promotes lymphangiogenesis, which is a clinically relevant target for treating lymphatic insufficienc...

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

authors： Leppänen VM,Tvorogov D,Kisko K,Prota AE,Jeltsch M,Anisimov A,Markovic-Mueller S,Stuttfeld E,Goldie KN,Ballmer-Hofer K,Alitalo K

更新日期：2013-08-06 00:00:00

abstract：:Despite the importance of aggression in the behavioral repertoire of most animals, relatively little is known of its proximate causation and control. To take advantage of modern methods of genetic analysis for studying this complex behavior, we have developed a quantitative framework for studying aggression in common ...

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

authors： Chen S,Lee AY,Bowens NM,Huber R,Kravitz EA

更新日期：2002-04-16 00:00:00

abstract：:The MLL (mixed-lineage leukemia) gene is involved in many chromosomal translocations associated with acute myeloid and lymphoid leukemia. We previously identified a transcriptional repression domain in MLL, which contains a region with homology to DNA methyltransferase. In chromosomal translocations, the MLL repressio...

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

authors： Xia ZB,Anderson M,Diaz MO,Zeleznik-Le NJ

更新日期：2003-07-08 00:00:00

abstract：:To assess the contribution to immunoglobulin heavy chain diversity made by recombination between variable region (VH) genes and joining region (JH) genes, we have determined the sequence of about 2000 nucleotides spanning the rearranged JH gene cluster associated with the VH gene expressed in plasmacytoma HPC76. The a...

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

authors： Gough NM,Bernard O

更新日期：1981-01-01 00:00:00

abstract：:Cytochrome P450IIC5 (rabbit liver 21-hydroxylase) is unusual among hepatic forms of cytochromes P450 because it catalyzes the conversion of one active steroid hormone (progesterone) to another active hormone (deoxycorticosterone). Another interesting aspect of this steroid-hydroxylating enzyme is the ability to conver...

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

authors： Trant JM,Lorence MC,Johnson EF,Shackleton CH,Mason JI,Estabrook RW

更新日期：1990-12-01 00:00:00

abstract：:Members of the transforming growth factor-β superfamily play essential roles in various aspects of embryonic development and physiological organ function. Among them, bone morphogenetic protein (BMP) 9 and BMP10 regulate embryonic vascular development by activating their endothelial receptor ALK1 (activin receptor-lik...

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

authors： Somekawa S,Imagawa K,Hayashi H,Sakabe M,Ioka T,Sato GE,Inada K,Iwamoto T,Mori T,Uemura S,Nakagawa O,Saito Y

更新日期：2012-07-24 00:00:00

abstract：:Tobacco mosaic virus (TMV) RNA was encapsulated in large, unilamellar phospholipid vesicles (liposomes), and the encapsulated TMV RNA was shown to be infectious when incubated with tobacco protoplasts under appropriate conditions. Maximal virus production in protoplasts was observed after their incubation with TMV RNA...

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

authors： Fraley RT,Dellaporta SL,Papahadjopoulos D

更新日期：1982-03-01 00:00:00

abstract：:Deciding whether a set of objects are the same or different is a cornerstone of perception and cognition. Surprisingly, no principled quantitative model of sameness judgment exists. We tested whether human sameness judgment under sensory noise can be modeled as a form of probabilistically optimal inference. An optimal...

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

authors： van den Berg R,Vogel M,Josic K,Ma WJ

更新日期：2012-02-21 00:00:00

abstract：:The sequence of the transforming region of simian sarcoma virus (SSV) has been determined by using molecularly cloned viral DNA. This region encompassed the 1.0-kilobase pair woolly monkey cell-derived insertion sequence, v-sis, and flanking simian sarcoma-associated viral (SSAV) sequences. A 675-nucleotide-long open ...

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

authors： Devare SG,Reddy EP,Robbins KC,Andersen PR,Tronick SR,Aaronson SA

更新日期：1982-05-01 00:00:00

abstract：:Morphine produces analgesia at opiate receptors expressed in nociceptive circuits. mu, delta, and kappa opiate receptor subtypes are expressed in circuits that can modulate nociception and receive inputs from endogenous opioid neuropeptide ligands. The roles played by each receptor subtype in nociceptive processing in...

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

authors： Sora I,Takahashi N,Funada M,Ujike H,Revay RS,Donovan DM,Miner LL,Uhl GR

更新日期：1997-02-18 00:00:00

abstract：:Chromosome 14 allelic loss is common in nasopharyngeal carcinoma (NPC) and may reflect essential tumor suppressor gene loss in tumorigenesis. An intact chromosome 14 was transferred to an NPC cell line using a microcell-mediated chromosome transfer approach. Microcell hybrids (MCHs) containing intact exogenously trans...

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

authors： Cheung AK,Lung HL,Ko JM,Cheng Y,Stanbridge EJ,Zabarovsky ER,Nicholls JM,Chua D,Tsao SW,Guan XY,Lung ML

更新日期：2009-08-25 00:00:00

abstract：:We have produced a soluble form of a mouse alpha beta T-cell antigen receptor (TCR) by shuffling its variable (V) and constant (C) domains to the C region of an immunoglobulin kappa light chain. These chimeric molecules composed of V alpha C alpha C kappa and V beta C beta C kappa chains were efficiently secreted (up ...

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

authors： Grégoire C,Rebaï N,Schweisguth F,Necker A,Mazza G,Auphan N,Millward A,Schmitt-Verhulst AM,Malissen B

更新日期：1991-09-15 00:00:00

abstract：:Escherichia coli glutamine synthetase (GS) was inactivated by a nonenzymic mixed-function oxidation system composed of ascorbate, O2, and Fe(III). Partial inactivation of GS by this system leads to the formation of hybrid GS molecules (dodecamers) composed of both active and inactive subunits. Subunit interactions in ...

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

authors： Nakamura K,Stadtman ER

更新日期：1984-04-01 00:00:00

abstract：:The nuclear LIM domain protein LMO2, a T cell oncoprotein, is essential for embryonic erythropoiesis. LIM-only proteins are presumed to act primarily through protein-protein interactions. We, and others, have identified a widely expressed protein, Ldb1, whose C-terminal 76-residues are sufficient to mediate interactio...

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

authors： Visvader JE,Mao X,Fujiwara Y,Hahm K,Orkin SH

更新日期：1997-12-09 00:00:00

abstract：:The broad negative consequences of habitat degradation on biodiversity have been studied, but the complex effects of natural-agricultural landscape matrices remain poorly understood. Here we used stable carbon and nitrogen isotopes to detect changes in mammal resource and habitat use and trophic structure between pres...

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

authors： Magioli M,Moreira MZ,Fonseca RCB,Ribeiro MC,Rodrigues MG,Ferraz KMPMB

更新日期：2019-09-10 00:00:00

abstract：:Learning to read requires the acquisition of an efficient visual procedure for quickly recognizing fine print. Thus, reading practice could induce a perceptual learning effect in early vision. Using functional magnetic resonance imaging (fMRI) in literate and illiterate adults, we previously demonstrated an impact of ...

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

authors： Pegado F,Comerlato E,Ventura F,Jobert A,Nakamura K,Buiatti M,Ventura P,Dehaene-Lambertz G,Kolinsky R,Morais J,Braga LW,Cohen L,Dehaene S

更新日期：2014-12-09 00:00:00

abstract：:We present a method for studying RNA processing and ribonucleoprotein assembly in vivo, by using RNA synthesized in vitro. SP6-transcribed 32P-labeled U2 small nuclear RNA precursor molecules were introduced into cultured human 293 cells by calcium phosphate-mediated uptake, as in standard DNA transfection experiments...

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

authors： Kleinschmidt AM,Pederson T

更新日期：1990-02-01 00:00:00

abstract：:Tetracycline resistance encoded by four genetically different determinants residing on plasmids in Escherichia coli was shown to be associated in each case with an energy-dependent decrease in accumulation of the antibiotic in whole cells in which resistance had been induced. The different class determinants examined ...

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

authors： McMurry L,Petrucci RE Jr,Levy SB

更新日期：1980-07-01 00:00:00

abstract：:Recent advances in high-field MRI have dramatically improved the visualization of human brain anatomy in vivo. Most notably, in cortical gray matter, strong contrast variations have been observed that appear to reflect the local laminar architecture. This contrast has been attributed to subtle variations in the magnet...

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

authors： Fukunaga M,Li TQ,van Gelderen P,de Zwart JA,Shmueli K,Yao B,Lee J,Maric D,Aronova MA,Zhang G,Leapman RD,Schenck JF,Merkle H,Duyn JH

更新日期：2010-02-23 00:00:00

abstract：:Biological soil crusts (biocrusts)—communities of mosses, lichens, cyanobacteria, and heterotrophs living at the soil surface—are fundamental components of drylands worldwide, and destruction of biocrusts dramatically alters biogeochemical processes, hydrology, surface energy balance, and vegetation cover. Although th...

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

authors： Ferrenberg S,Reed SC,Belnap J

更新日期：2015-09-29 00:00:00

abstract：:Chloroplast DNA (cpDNA) is under great photooxidative stress, yet its evolution is very conservative compared with nuclear or mitochondrial genomes. It can be expected that DNA repair mechanisms play important roles in cpDNA survival and evolution, but they are poorly understood. To gain insight into how the most seve...

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

authors： Kwon T,Huq E,Herrin DL

更新日期：2010-08-03 00:00:00

abstract：:Ecosystem restoration aims to restore biodiversity and valuable functions that have been degraded or lost. The Coral Triangle is a hotspot for marine biodiversity held in its coral reefs, seagrass meadows, and mangrove forests, all of which are in global decline. These coastal ecosystems support valuable fisheries and...

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

authors： Williams SL,Ambo-Rappe R,Sur C,Abbott JM,Limbong SR

更新日期：2017-11-07 00:00:00

abstract：:Yeast RNA polymerase II initiation factor e was purified to homogeneity and identified by biochemical criteria as the counterpart of human transcription factor IIB. Factor e was essential for initiation of transcription from yeast and mammalian promoters in a reconstituted yeast transcription system. Activity resided ...

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

authors： Tschochner H,Sayre MH,Flanagan PM,Feaver WJ,Kornberg RD

更新日期：1992-12-01 00:00:00

abstract：:Among yeasts that underwent whole-genome duplication (WGD), Kluyveromyces polysporus represents the lineage most distant from Saccharomyces cerevisiae. By sequencing the K. polysporus genome and comparing it with the S. cerevisiae genome using a likelihood model of gene loss, we show that these species diverged very s...

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

authors： Scannell DR,Frank AC,Conant GC,Byrne KP,Woolfit M,Wolfe KH

更新日期：2007-05-15 00:00:00

abstract：:The mechanism of preferential transmission (i.e., maternal inheritance) of cytoplasmic genes was investigated with chloroplast DNA of Chlamydomonas as a model system. The behavior of nuclear and chloroplast DNAs were compared in the sexual cycle; DNAs from male and female parents were distinguished by labeling with (1...

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

authors： Sager R,Lane D

更新日期：1972-09-01 00:00:00