Cleft palate in mice with a targeted mutation in the gamma-aminobutyric acid-producing enzyme glutamic acid decarboxylase 67.

abstract：:A central paradox in type 2 diabetes is the apparent selective nature of hepatic insulin resistance--wherein insulin fails to suppress hepatic glucose production yet continues to stimulate lipogenesis, resulting in hyperglycemia, hyperlipidemia, and hepatic steatosis. Although efforts to explain this have focused on f...

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

authors： Vatner DF,Majumdar SK,Kumashiro N,Petersen MC,Rahimi Y,Gattu AK,Bears M,Camporez JP,Cline GW,Jurczak MJ,Samuel VT,Shulman GI

更新日期：2015-01-27 00:00:00

abstract：:The posteromedial barrel subfield of the somatosensory cortex of mice was examined histochemically for cytochrome oxidase activity (cytochrome c oxidase; ferrocytochrome c:oxygen oxidoreductase, EC 1.9.3.1). In normal mice a high enzymatic activity was found within the barrel hollows, rather than in the sides and sept...

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

authors： Wong-Riley MT,Welt C

更新日期：1980-04-01 00:00:00

abstract：:A critical step in the induction of apoptosis is the activation of the apoptotic initiator caspase 9. We show that at its normal physiological concentration, caspase 9 is primarily an inactive monomer (zymogen), and that activity is associated with a dimeric species. At the high concentrations used for crystal formati...

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

authors： Renatus M,Stennicke HR,Scott FL,Liddington RC,Salvesen GS

更新日期：2001-12-04 00:00:00

abstract：:Dietary diversity often varies inversely with prey resource abundance. This pattern, although typically measured at the population level, is usually assumed to also characterize the behavior of individual animals within the population. However, the pattern might also be produced by changes in the degree of variation a...

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

authors： Tinker MT,Bentall G,Estes JA

更新日期：2008-01-15 00:00:00

abstract：:The chemokine receptor CCR5 is the major coreceptor for infection by macrophage-tropic R5 HIV-1. A 32-bp deletion in the gene coding for CCR5 (CCR5Delta32) occurs with a frequency of 10% in the Caucasian population and results in a receptor protein that is truncated and not expressed at the cell surface. CCR5Delta32 h...

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

authors： Ditzel HJ,Rosenkilde MM,Garred P,Wang M,Koefoed K,Pedersen C,Burton DR,Schwartz TW

更新日期：1998-04-28 00:00:00

abstract：:Myocytes in the atria contain a prohormone that gives rise to atrial natriuretic peptides (ANP), which have intrinsic hemodynamic regulatory activity. Little is known about mechanisms regulating ANP release. In rats with indwelling catheters, acute blood volume expansion with 5% (wt/vol) dextrose increases the amount ...

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

authors： Zamir N,Haass M,Dave JR,Zukowska-Grojec Z

更新日期：1987-01-01 00:00:00

abstract：:Minimally invasive detection of cell death could prove an invaluable resource in many physiologic and pathologic situations. Cell-free circulating DNA (cfDNA) released from dying cells is emerging as a diagnostic tool for monitoring cancer dynamics and graft failure. However, existing methods rely on differences in DN...

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

authors： Lehmann-Werman R,Neiman D,Zemmour H,Moss J,Magenheim J,Vaknin-Dembinsky A,Rubertsson S,Nellgård B,Blennow K,Zetterberg H,Spalding K,Haller MJ,Wasserfall CH,Schatz DA,Greenbaum CJ,Dorrell C,Grompe M,Zick A,Hubert A,M

更新日期：2016-03-29 00:00:00

abstract：:We have developed a homologous in vitro transcription system that requires (i) 2,3,7,8-tetrachlorodibenzo-p-dioxin (called TCDD or dioxin), (ii) the Ah receptor, and (iii) a dioxin-responsive enhancer for activity. Unfractionated nuclear extracts from mouse hepatoma cells contain an inhibitor and fail to direct transc...

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

authors： Wen LP,Koeiman N,Whitlock JP Jr

更新日期：1990-11-01 00:00:00

abstract：:Predicting whether and how populations will adapt to rapid climate change is a critical goal for evolutionary biology. To examine the genetic basis of fitness and predict adaptive evolution in novel climates with seasonal variation, we grew a diverse panel of the annual plant Arabidopsis thaliana (multiparent advanced...

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

authors： Fournier-Level A,Perry EO,Wang JA,Braun PT,Migneault A,Cooper MD,Metcalf CJ,Schmitt J

更新日期：2016-05-17 00:00:00

abstract：:A number of studies have noted that nucleotide substitution rates at the chloroplast-encoded rbcL locus violate the molecular clock principle. Substitution rate variation at this plastid gene is particularly pronounced between palms and grasses; for example, a previous study estimated that substitution rates in rbcL s...

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

authors： Gaut BS,Morton BR,McCaig BC,Clegg MT

更新日期：1996-09-17 00:00:00

abstract：:Inhibitory interneurons regulate the responses of cortical circuits. In auditory cortical areas, inhibition from these neurons narrows spectral tuning and shapes response dynamics. Acute disruptions of inhibition expand spectral receptive fields. However, the effects of long-term perturbations of inhibitory circuitry ...

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

authors： Seybold BA,Stanco A,Cho KK,Potter GB,Kim C,Sohal VS,Rubenstein JL,Schreiner CE

更新日期：2012-08-21 00:00:00

abstract：:The biosynthesis of rebeccamycin, an antitumor compound, involves the remarkable eight-electron oxidation of chlorinated chromopyrrolic acid. Although one rebeccamycin biosynthetic enzyme is capable of generating low levels of the eight-electron oxidation product on its own, a second protein, RebC, is required to acce...

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

authors： Ryan KS,Howard-Jones AR,Hamill MJ,Elliott SJ,Walsh CT,Drennan CL

更新日期：2007-09-25 00:00:00

abstract：:Improving global yields of important agricultural crops is a complex challenge. Enhancing yield and resource use by engineering improvements to photosynthetic carbon assimilation is one potential solution. During the last 40 million years C(4) photosynthesis has evolved multiple times, enabling plants to evade the cat...

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

authors： Whitney SM,Sharwood RE,Orr D,White SJ,Alonso H,Galmés J

更新日期：2011-08-30 00:00:00

abstract：:Cells are wrapped in inelastic membranes, yet they can sustain large mechanical strains by regulating their area. The area regulation in cells is achieved either by membrane folding or by membrane exo- and endocytosis. These processes involve complex morphological transformations of the cell membrane, i.e., invaginati...

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

authors： Staykova M,Holmes DP,Read C,Stone HA

更新日期：2011-05-31 00:00:00

abstract：:The sea anemone, Nematostella vectensis, has become an attractive new model organism for comparative genomics and evolutionary developmental biology. Over the last few years, many genes have been isolated and their expression patterns studied to gain insight into their function. More recently, functional tools have be...

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

authors： Renfer E,Amon-Hassenzahl A,Steinmetz PR,Technau U

更新日期：2010-01-05 00:00:00

abstract：:Osteoclasts, bone-resorptive multinucleated cells derived from hematopoietic stem cells, are associated with many bone-related diseases, such as osteoporosis. Osteoclast-targeting small-molecule inhibitors are valuable tools for studying osteoclast biology and for developing antiresorptive agents. Here, we have discov...

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

authors： Kawatani M,Okumura H,Honda K,Kanoh N,Muroi M,Dohmae N,Takami M,Kitagawa M,Futamura Y,Imoto M,Osada H

更新日期：2008-08-19 00:00:00

abstract：:Since the development of infectious cDNA clones of viral RNA genomes and the means of delivery of the in vitro-synthesized RNA into cells, alphaviruses have become an attractive system for expression of heterologous genetic information. Alphaviruses replicate exclusively in the cytoplasm, and their genetic material ca...

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

authors： Kim DY,Atasheva S,McAuley AJ,Plante JA,Frolova EI,Beasley DW,Frolov I

更新日期：2014-07-22 00:00:00

abstract：:Do negative feelings in general trigger addictive behavior, or do specific emotions play a stronger role? Testing these alternative accounts of emotion and decision making, we drew on the Appraisal Tendency Framework to predict that sadness, specifically, rather than negative mood, generally, would 1) increase craving...

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

authors： Dorison CA,Wang K,Rees VW,Kawachi I,Ericson KMM,Lerner JS

更新日期：2020-01-14 00:00:00

abstract：:An in vitro system for replication of lambda dv plasmid DNA has been constructed. This system consists of an ammonium sulfate fraction from Escherichia coli extract, exogenously added purified lambda O and P proteins, and lambda dv DNA in closed circular form. More than 85% of the added template DNA replicated semicon...

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

authors： Tsurimoto T,Matsubara K

更新日期：1982-12-01 00:00:00

abstract：:Norepinephrine, epinephrine, and histamine cause a rapid increase in the concentration of adenosine 3':5'-cyclic monophosphate (cAMP) in a tumor astrocyte cell line derived from a primary culture of a human glioblastoma multiforme. The catecholamine-induced increase in cAMP is dependent on the cell density, being far ...

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

authors： Clark RB,Perkins JP

更新日期：1971-11-01 00:00:00

abstract：:We introduce a coarse-grained model for atomic glass formers. Its elements are physically motivated local microscopic dynamical rules parameterized by observables. Results of the model are established and used to interpret the measured behaviors of supercooled fluids approaching glass transitions. The model predicts t...

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

authors： Garrahan JP,Chandler D

更新日期：2003-08-19 00:00:00

abstract：:The tumor promoter phorbol 12-myristate 13-acetate (PMA) induces characteristic reversible changes of cell shape in certain fibroblastic lines: motile lamellas are transformed into noncontractile narrow processes; simultaneously, the actin microfilament network of lamellas is locally disorganized. This reaction to PMA...

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

authors： Bershadsky AD,Ivanova OY,Lyass LA,Pletyushkina OY,Vasiliev JM,Gelfand IM

更新日期：1990-03-01 00:00:00

abstract：:The effects of predator intimidation on habitat use and behavior of prey species are rarely quantified for large marine vertebrates over ecologically relevant scales. Using state space movement models followed by a series of step selection functions, we analyzed movement data of concurrently tracked prey, bowhead whal...

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

authors： Matthews CJD,Breed GA,LeBlanc B,Ferguson SH

更新日期：2020-03-24 00:00:00

abstract：:The autophagic ubiquitin-like protein (ublp) autophagy-related (ATG)12 is a component of the ATG12∼ATG5-ATG16L1 E3 complex that promotes lipid conjugation of members of the LC3 ublp family. A role of ATG12 in the E3 complex is to recruit the E2 enzyme ATG3. Here we report the identification of the ATG12 binding sequen...

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

authors： Metlagel Z,Otomo C,Takaesu G,Otomo T

更新日期：2013-11-19 00:00:00

abstract：:DNA "breathing" is a thermally driven process in which base-paired DNA sequences transiently adopt local conformations that depart from their most stable structures. Polymerases and other proteins of genome expression require access to single-stranded DNA coding templates located in the double-stranded DNA "interior,"...

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

authors： Phelps C,Lee W,Jose D,von Hippel PH,Marcus AH

更新日期：2013-10-22 00:00:00

abstract：:Women outnumber men in undergraduate enrollments, but they are much less likely than men to major in mathematics or science or to choose a profession in these fields. This outcome often is attributed to the effects of negative sex-based stereotypes. We studied the effect of such stereotypes in an experimental market, ...

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

authors： Reuben E,Sapienza P,Zingales L

更新日期：2014-03-25 00:00:00

abstract：:Ectopic expression of transcription factors can reprogram somatic cells to a pluripotent state. However, most of the studies used skin fibroblasts as the starting population for reprogramming, which usually take weeks for expansion from a single biopsy. We show here that induced pluripotent stem (iPS) cells can be gen...

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

authors： Sun N,Panetta NJ,Gupta DM,Wilson KD,Lee A,Jia F,Hu S,Cherry AM,Robbins RC,Longaker MT,Wu JC

更新日期：2009-09-15 00:00:00

abstract：:A system for studying Z-DNA formation in the Escherichia coli chromosome was developed. Prior investigations in recombinant plasmids showed that alternating (Pur-Pyr) sequences can adopt a left-handed Z-DNA conformation both in vitro and in vivo. We constructed mobile, transposon-based cassettes carrying cloned (Pur-P...

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

authors： Lukomski S,Wells RD

更新日期：1994-10-11 00:00:00

abstract：:Many current treatments for the reclamation of contaminated water sources are chemical-intensive, energy-intensive, and/or require posttreatment due to unwanted by-product formation. We demonstrate that through the integration of nanostructured materials, enzymatic catalysis, and iron-catalyzed free radical reactions ...

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

authors： Lewis SR,Datta S,Gui M,Coker EL,Huggins FE,Daunert S,Bachas L,Bhattacharyya D

更新日期：2011-05-24 00:00:00

abstract：:When the visual (striate) cortex (V1) is damaged in human subjects, cortical blindness results in the contralateral visual half field. Nevertheless, under some experimental conditions, subjects demonstrate a capacity to make visual discriminations in the blind hemifield (blindsight), even though they have no phenomena...

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

authors： Weiskrantz L,Barbur JL,Sahraie A

更新日期：1995-06-20 00:00:00