Immunolocalization of skeletal matrix proteins in tissue and mineral of the coral Stylophora pistillata.

abstract：:Cognitive studies of memory processes demonstrate that memory for stimuli is a function of how they are encoded; stimuli processed semantically are better remembered than those processed in a perceptual or shallow fashion. This study investigates the neural correlates of this cognitive phenomenon. Twelve subjects perf...

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

authors： Kapur S,Craik FI,Tulving E,Wilson AA,Houle S,Brown GM

更新日期：1994-03-15 00:00:00

abstract：:The rat calbindin D-9k gene is transcriptionally regulated by 1,25-dihydroxyvitamin D3 in the intestine. We have examined the 5'-flanking region of this gene and identified a 1,25-dihydroxyvitamin D3-responsive element (DRE) between nucleotides -489 and -445. This element confers 1,25-dihydroxyvitamin D3 responsivenes...

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

authors： Darwish HM,DeLuca HF

更新日期：1992-01-15 00:00:00

abstract：:There is great interest in understanding the mechanisms of expression underlying long-term potentiation (LTP). They are agreed to involve an increase in synaptic efficacy, which is described by three multiplicative parameters: p, the probability of neurotransmitter release; n, the number of active release sites; and q...

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

authors： Schulz PE

更新日期：1997-05-27 00:00:00

abstract：:The Ig new antigen receptors (IgNARs) are single-domain antibodies found in the serum of sharks. Here, we report 2.2- and 2.8-A structures of the type 2 IgNAR variable domains 12Y-1 and 12Y-2. Structural features include, first, an Ig superfamily topology transitional between cell adhesion molecules, antibodies, and T...

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

authors： Streltsov VA,Varghese JN,Carmichael JA,Irving RA,Hudson PJ,Nuttall SD

更新日期：2004-08-24 00:00:00

abstract：:Muscle wasting is a debilitating consequence of fasting, inactivity, cancer, and other systemic diseases that results primarily from accelerated protein degradation by the ubiquitin-proteasome pathway. To identify key factors in this process, we have used cDNA microarrays to compare normal and atrophying muscles and f...

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

authors： Gomes MD,Lecker SH,Jagoe RT,Navon A,Goldberg AL

更新日期：2001-12-04 00:00:00

abstract：:The effects of phorbol 12-myristate 13-acetate (PMA), a potent activator of protein kinase C, on Na+ influx were investigated in cultured human foreskin fibroblasts (HSWP cells). We report here that in serum-deprived HSWP cells the addition of PMA alone has no significant effect on Na+ influx. However, the addition of...

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

authors： Vicentini LM,Villereal ML

更新日期：1985-12-01 00:00:00

abstract：:Oligodeoxyribonucleotides covalently linked to an intercalating agent via a polymethylene linker were synthesized. Oligothymidylates attached to an acridine dye (Acr) through the 3'-phosphate group [(Tp)n(CH2) mAcr ] specifically interact with the complementary sequence. The interaction is strongly stabilized by the i...

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

authors： Asseline U,Delarue M,Lancelot G,Toulmé F,Thuong NT,Montenay-Garestier T,Hélène C

更新日期：1984-06-01 00:00:00

abstract：:A panel of 20 recombinant Fab fragments reactive with the surface glycoprotein gp120 of human type 1 immunodeficiency virus (HIV-1) were examined for their ability to neutralize MN and IIIB strains of the virus. Neutralization was determined as the ability of the Fab fragments to inhibit infection as measured in both ...

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

authors： Barbas CF 3rd,Björling E,Chiodi F,Dunlop N,Cababa D,Jones TM,Zebedee SL,Persson MA,Nara PL,Norrby E

更新日期：1992-10-01 00:00:00

abstract：:We have previously described a gene delivery system based upon the receptor-mediated endocytosis of DNA complexed with transferrin-polycation conjugates. This delivery system has been found to be very effective for both the internalization and the expression of genetic material in cells that have many transferrin rece...

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

authors： Wagner E,Cotten M,Foisner R,Birnstiel ML

更新日期：1991-05-15 00:00:00

abstract：:In rats fed the liver carcinogen 2-acetylaminofluorene (AAF), the two most abundant types of DNA adduct are N-(deoxyguanosin-8-yl)-2-acetylaminofluorene and its deacetylated derivative. When plasmids carrying AAF adducts replicate in bacteria, the predominant mutations are frameshifts, whereas with deacetylated (AF) a...

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

authors： Mah MC,Boldt J,Culp SJ,Maher VM,McCormick JJ

更新日期：1991-11-15 00:00:00

abstract：:A detailed single-crystal X-ray study of conformationally flexible sulfonimide-based dendritic molecules with systematically varied molecular architectures was undertaken. Thirteen crystal structures reported in this work include 9 structures of the second-generation dendritic sulfonimides decorated with different ary...

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

authors： Lukin O,Schubert D,Müller CM,Schweizer WB,Gramlich V,Schneider J,Dolgonos G,Shivanyuk A

更新日期：2009-07-07 00:00:00

abstract：:We discuss some recent progress on the regularity theory of the elliptic Yang-Mills equation. We start with some basic properties of the elliptic Yang-Mills equation, such as Coulomb gauges, monotonicity, and curvature estimates. Next we discuss singularity of stationary Yang-Mills connections and compactness theorems...

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

authors： Tian G

更新日期：2002-11-26 00:00:00

abstract：:Although potassium channels play a variety of roles in shaping the electrical properties of neurons, little is known about how these channels are constituted in neurons. To examine the assembly and physiological function of A-type K+ channels in mature differentiated neurons, we have developed a highly efficient gene ...

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

authors： Kaang BK,Pfaffinger PJ,Grant SG,Kandel ER,Furukawa Y

更新日期：1992-02-01 00:00:00

abstract：:Complex II inhibitors 3-nitropropionic acid (3NP) and malonate cause striatal damage reminiscent of Huntington's disease and have been shown to involve oxidative stress in their pathogenesis. Because nuclear factor erythroid 2-related factor 2 (Nrf2)-dependent transcriptional activation by means of the antioxidant res...

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

authors： Calkins MJ,Jakel RJ,Johnson DA,Chan K,Kan YW,Johnson JA

更新日期：2005-01-04 00:00:00

abstract：:The environmental topology of complex structures is used by Escherichia coli to create traveling waves of high cell density, a prelude to quorum sensing. When cells are grown to a moderate density within a confining microenvironment, these traveling waves of cell density allow the cells to find and collapse into confi...

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

authors： Park S,Wolanin PM,Yuzbashyan EA,Lin H,Darnton NC,Stock JB,Silberzan P,Austin R

更新日期：2003-11-25 00:00:00

abstract：:The visual system of the macaque monkey has provided a useful model for understanding the neural basis of human vision, yet, there are few detailed comparisons of neural populations other than photoreceptors for the two species. Using intracellular staining in an in vitro preparation of the isolated and intact human r...

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

authors： Dacey DM,Petersen MR

更新日期：1992-10-15 00:00:00

abstract：:Coordinated changes in gene expression underlie the early patterning and cell-type specification of the central nervous system. However, much less is known about how such changes contribute to later stages of circuit assembly and refinement. In this study, we employ single-cell RNA sequencing to develop a detailed, wh...

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

authors： Kalish BT,Cheadle L,Hrvatin S,Nagy MA,Rivera S,Crow M,Gillis J,Kirchner R,Greenberg ME

更新日期：2018-01-30 00:00:00

abstract：:Loss or reduction in function of tumor suppressor genes contributes to tumorigenesis. Here, by allelic DNA copy number analysis using single-nucleotide polymorphism genotyping array and mass spectrometry, we report homozygous deletion in glioblastoma multiformes at chromosome 13q21, where DACH1 gene is located. We fou...

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

authors： Watanabe A,Ogiwara H,Ehata S,Mukasa A,Ishikawa S,Maeda D,Ueki K,Ino Y,Todo T,Yamada Y,Fukayama M,Saito N,Miyazono K,Aburatani H

更新日期：2011-07-26 00:00:00

abstract：:The tissue-specific transcriptional coactivator OCA-B is required for antigen-dependent B cell differentiation events, including germinal center formation. However, the identity of OCA-B target genes involved in this process is unknown. This study has used large-scale cDNA arrays to monitor changes in gene expression ...

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

authors： Kim U,Siegel R,Ren X,Gunther CS,Gaasterland T,Roeder RG

更新日期：2003-07-22 00:00:00

abstract：:The mode of binding of the competitive inhibitor 2-benzyl-3-formylpropanoic acid to the active site of carboxypeptidase A has been studied by x-ray diffraction methods to a resolution of 1.7 A. The actual species bound to the enzyme was determined to be the gem-diol resulting from covalent hydration at the aldehyde ca...

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

authors： Christianson DW,Lipscomb WN

更新日期：1985-10-01 00:00:00

abstract：:It is a well known fact that stirring keeps particles suspended in fluids. This is apparent, for instance, when shaking medicine flasks, when agitating tea deposits in a mug, or when heavy winds fill the air with dust particles. The commonplace nature of such observations makes it easy to accept that this feature will...

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

authors： Ruiz J,Macías D,Peters F

更新日期：2004-12-21 00:00:00

abstract：:Molecules of keystone significance are relatively rare, yet mediate a variety of interactions between organisms. They influence the distribution and abundance of species, the transfer of energy across multiple trophic levels, and thus they play significant roles in structuring ecosystems. Despite their potential impor...

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

authors： Kicklighter CE,Kamio M,Nguyen L,Germann MW,Derby CD

更新日期：2011-07-12 00:00:00

abstract：:Two mutants of Balb/c 3T3 cells defective in adhesiveness to substratum have been isolated. After exposure to a mutagen a cell population was treated with prostaglandin E1 and methylisobutylxanthine to elevate the cells 3':5'-cyclic AMP levels and adhesion to the substratum; then, loosley adherent cells were harvested...

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

authors： Pouysségur JM,Pastan I

更新日期：1976-02-01 00:00:00

abstract：:The transport of moisture in the tropics is a critical process for the global energy budget and on geologic timescales, has markedly influenced continental landscapes, migratory pathways, and biological evolution. Here we present a continuous, first-of-its-kind 1.3-My record of continental hydroclimate and lake-level ...

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

authors： Lyons RP,Scholz CA,Cohen AS,King JW,Brown ET,Ivory SJ,Johnson TC,Deino AL,Reinthal PN,McGlue MM,Blome MW

更新日期：2015-12-22 00:00:00

abstract：:Radiation dose rates were evaluated in three areas neighboring a restricted area within a 20- to 50-km radius of the Fukushima Daiichi Nuclear Power Plant in August-September 2012 and projected to 2022 and 2062. Study participants wore personal dosimeters measuring external dose equivalents, almost entirely from depos...

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

authors： Harada KH,Niisoe T,Imanaka M,Takahashi T,Amako K,Fujii Y,Kanameishi M,Ohse K,Nakai Y,Nishikawa T,Saito Y,Sakamoto H,Ueyama K,Hisaki K,Ohara E,Inoue T,Yamamoto K,Matsuoka Y,Ohata H,Toshima K,Okada A,Sato H,Kuwa

更新日期：2014-03-11 00:00:00

abstract：:The mammalian retina contains an autonomous circadian clock system that controls many physiological functions within this tissue. Previous studies on young mice have reported that removal of the key circadian clock gene Bmal1 from the retina affects the circadian regulation of visual function, but does not affect phot...

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

authors： Baba K,Piano I,Lyuboslavsky P,Chrenek MA,Sellers JT,Zhang S,Gargini C,He L,Tosini G,Iuvone PM

更新日期：2018-12-18 00:00:00

abstract：:Idiopathic pulmonary fibrosis (IPF)/usual interstitial pneumonia is a ravaging condition of progressive lung scarring and destruction. Anti-inflammatory therapies including corticosteroids have limited efficacy in this ultimately fatal disorder. An important unmet need is to identify new agents that interact with key ...

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

authors： Henderson WR Jr,Chi EY,Ye X,Nguyen C,Tien YT,Zhou B,Borok Z,Knight DA,Kahn M

更新日期：2010-08-10 00:00:00

abstract：:We analyzed a very large set of molecular interactions that had been derived automatically from biological texts. We found that published statements, regardless of their verity, tend to interfere with interpretation of the subsequent experiments and, therefore, can act as scientific "microparadigms," similar to domina...

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

authors： Rzhetsky A,Iossifov I,Loh JM,White KP

更新日期：2006-03-28 00:00:00

abstract：:Rapid electrical conduction in the His-Purkinje system tightly controls spatiotemporal activation of the ventricles. Although recent work has shed much light on the regulation of early specification and morphogenesis of the His-Purkinje system, less is known about how transcriptional regulation establishes impulse con...

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

authors： Zhang SS,Kim KH,Rosen A,Smyth JW,Sakuma R,Delgado-Olguín P,Davis M,Chi NC,Puviindran V,Gaborit N,Sukonnik T,Wylie JN,Brand-Arzamendi K,Farman GP,Kim J,Rose RA,Marsden PA,Zhu Y,Zhou YQ,Miquerol L,Henkelman RM,Sta

更新日期：2011-08-16 00:00:00

abstract：:Cytochromes P450 play key roles in drug metabolism and disease by oxidizing a wide variety of natural and xenobiotic compounds. High-resolution crystal structures of P450cam bound to ruthenium sensitizer-linked substrates reveal an open conformation of the enzyme that allows substrates to access the active center via ...

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

authors： Dunn AR,Dmochowski IJ,Bilwes AM,Gray HB,Crane BR

更新日期：2001-10-23 00:00:00