Tyrosine kinase inhibitors reverse type 1 diabetes in nonobese diabetic mice.

abstract：:Supported metal catalysts are extensively used in industrial and environmental applications. To improve their performance, it is crucial to identify the most active sites. This identification is, however, made challenging by the presence of a large number of potential surface structures that complicate such an assignm...

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

authors： Yang AC,Choksi T,Streibel V,Aljama H,Wrasman CJ,Roling LT,Goodman ED,Thomas D,Bare SR,Sánchez-Carrera RS,Schäfer A,Li Y,Abild-Pedersen F,Cargnello M

更新日期：2020-06-30 00:00:00

abstract：:Recoverin, a recently discovered member of the EF-hand superfamily of Ca(2+)-binding proteins, serves as a Ca2+ sensor in vision. The amino terminus of the protein from retinal rod cells contains a covalently attached myristoyl or related N-acyl group. We report here studies of unmyristoylated and myristoylated recomb...

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

authors： Zozulya S,Stryer L

更新日期：1992-12-01 00:00:00

abstract：:Mutations in the DAX-1 [dosage-sensitive sex reversal-adrenal hypoplasia congenita (AHC) critical region on the X chromosome; NR0B1] gene cause X-linked AHC associated with hypogonadotropic hypogonadism. DAX-1 encodes an unusual orphan member of the nuclear hormone receptor superfamily, acting as a transcriptional rep...

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

authors： Lehmann SG,Lalli E,Sassone-Corsi P

更新日期：2002-06-11 00:00:00

abstract：:Immediately after focal retinal lesions, receptive fields (RFs) in primary visual cortex expand considerably, even when the retinal damage is limited to the photoreceptor layer. The time course of these changes suggests that mere lack of stimulation in the vicinity of the RF accompanied by stimulation in the surroundi...

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

authors： Pettet MW,Gilbert CD

更新日期：1992-09-01 00:00:00

abstract：:Treatment of Madin-Darby bovine kidney (MDBK) cells with human interferon (IFN)-alpha 2 at 37 degrees C results in a dose-dependent inhibition of cell growth and a reduction of the subsequent binding of 125I-labeled epidermal growth factor (EGF) at 4 degrees C. Human IFN-beta and -gamma, which exhibit little antiviral...

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

authors： Zoon KC,Karasaki Y,zur Nedden DL,Hu RQ,Arnheiter H

更新日期：1986-11-01 00:00:00

abstract：:Colonization of land by plants was a major transition on Earth, but the developmental and genetic innovations required for this transition remain unknown. Physiological studies and the fossil record strongly suggest that the ability of the first land plants to form symbiotic associations with beneficial fungi was one ...

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

authors： Delaux PM,Radhakrishnan GV,Jayaraman D,Cheema J,Malbreil M,Volkening JD,Sekimoto H,Nishiyama T,Melkonian M,Pokorny L,Rothfels CJ,Sederoff HW,Stevenson DW,Surek B,Zhang Y,Sussman MR,Dunand C,Morris RJ,Roux C,Wong GK

更新日期：2015-10-27 00:00:00

abstract：:The BCL2 protooncogene encodes an inner mitochondrial membrane protein that blocks programmed cell death. BCL2 was isolated from the chromosomal breakpoint of follicular B-cell lymphoma. Transgenic mice that overexpress BCL2 display extended survival of resting B cells. In this study we use a monospecific anti-human B...

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

authors： Hockenbery DM,Zutter M,Hickey W,Nahm M,Korsmeyer SJ

更新日期：1991-08-15 00:00:00

abstract：:Hepatitis C virus (HCV) NS3-4A is a membrane-associated multifunctional protein harboring serine protease and RNA helicase activities. It is an essential component of the HCV replication complex and a prime target for antiviral intervention. Here, we show that membrane association and structural organization of HCV NS...

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

authors： Brass V,Berke JM,Montserret R,Blum HE,Penin F,Moradpour D

更新日期：2008-09-23 00:00:00

abstract：:Stability of the long noncoding-polyadenylated nuclear (PAN) RNA from Kaposi's sarcoma-associated herpesvirus is conferred by an expression and nuclear retention element (ENE). The ENE protects PAN RNA from a rapid deadenylation-dependent decay pathway via formation of a triple helix between the U-rich internal loop o...

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

authors： Brown JA,Valenstein ML,Yario TA,Tycowski KT,Steitz JA

更新日期：2012-11-20 00:00:00

abstract：:Using an antibody highly specific for D-serine conjugated to glutaraldehyde, we have localized endogenous D-serine in rat brain. Highest levels of D-serine immunoreactivity occur in the gray matter of the cerebral cortex, hippocampus, anterior olfactory nucleus, olfactory tubercle, and amygdala. Localizations of D-ser...

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

authors： Schell MJ,Molliver ME,Snyder SH

更新日期：1995-04-25 00:00:00

abstract：:Cumulative distributions of the number of doublings undergone by mixed megakaryocytic/erythroblastic colonies and by pure megakaryocytic colonies were determined from plasma clot cultures of bone marrow (from C57BL/6 mice) supplemented with erythropoietin. Analysis of these distributions suggests that these colonies a...

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

authors： Paulus JM,Prenant M,Deschamps JF,Henry-Amar M

更新日期：1982-07-01 00:00:00

abstract：:Markov chain Monte Carlo (MCMC) or the Metropolis-Hastings algorithm is a simulation algorithm that has made modern Bayesian statistical inference possible. Nevertheless, the efficiency of different Metropolis-Hastings proposal kernels has rarely been studied except for the Gaussian proposal. Here we propose a unique ...

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

authors： Yang Z,Rodríguez CE

更新日期：2013-11-26 00:00:00

abstract：:Infection of mice with sporozoites of Plasmodium berghei or Plasmodium yoelii has been used extensively to evaluate liver-stage protection by candidate preerythrocytic malaria vaccines. Unfortunately, repeated success of such vaccines in mice has not translated readily to effective malaria vaccines in humans. Thus, mi...

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

authors： Schmidt NW,Podyminogin RL,Butler NS,Badovinac VP,Tucker BJ,Bahjat KS,Lauer P,Reyes-Sandoval A,Hutchings CL,Moore AC,Gilbert SC,Hill AV,Bartholomay LC,Harty JT

更新日期：2008-09-16 00:00:00

abstract：:Legionella pneumophila, the causal agent of Legionnaires' disease, is an intracellular parasite and invades and proliferates within different eukaryotic cells, including human alveolar macrophages. After several 100-fold multiplication within host cells, the pathogens are released for new invasion by induction of apop...

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

authors： Belyi Y,Niggeweg R,Opitz B,Vogelsgesang M,Hippenstiel S,Wilm M,Aktories K

更新日期：2006-11-07 00:00:00

abstract：:We construct a C*-algebra that has only one irreducible representation up to unitary equivalence but is not isomorphic to the algebra of compact operators on any Hilbert space. This answers an old question of Naimark. Our construction uses a combinatorial statement called the diamond principle, which is known to be co...

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

authors： Akemann C,Weaver N

更新日期：2004-05-18 00:00:00

abstract：:Hematopoietic stem/progenitor cells (HSPCs) possess the potentials of self-renewal, proliferation, and differentiation toward different lineages of blood cells. These cells not only play a primordial role in hematopoietic development but also have important clinical application. Characterization of the gene expression...

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

authors： Mao M,Fu G,Wu JS,Zhang QH,Zhou J,Kan LX,Huang QH,He KL,Gu BW,Han ZG,Shen Y,Gu J,Yu YP,Xu SH,Wang YX,Chen SJ,Chen Z

更新日期：1998-07-07 00:00:00

abstract：:The reversible binding of the haptens 2,4-dinitrophenyllysine (DNP-lysine) and 2,4,6-trinitrophenyllysine (TNP-lysine) to either the nitrophenyl-binding myeloma protein MOPC-315 or to pooled mouse anti-DNP or anti-TNP antibodies produces large and characteristic extrinsic Cotton effects (in the circular dichroic spect...

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

authors： Glaser M,Singer SJ

更新日期：1971-10-01 00:00:00

abstract：:When encountering unexpected event changes, memories of relevant past experiences must be updated to form new representations. Current models of memory updating propose that people must first generate memory-based predictions to detect and register that features of the environment have changed, then encode the new eve...

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

authors： Stawarczyk D,Wahlheim CN,Etzel JA,Snyder AZ,Zacks JM

更新日期：2020-11-24 00:00:00

abstract：:Cyclic electron flow (CEF) around photosystem I is thought to balance the ATP/NADPH energy budget of photosynthesis, requiring that its rate be finely regulated. The mechanisms of this regulation are not well understood. We observed that mutants that exhibited constitutively high rates of CEF also showed elevated prod...

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

authors： Strand DD,Livingston AK,Satoh-Cruz M,Froehlich JE,Maurino VG,Kramer DM

更新日期：2015-04-28 00:00:00

abstract：:Gecko and many insects have adopted nanoscale fibrillar structures on their feet as adhesion devices. Here, we consider adhesion between a single fiber and a substrate by van der Waals or electrostatic interactions. For a given contact area A, the theoretical pull-off force of the fiber is sigma(th)A where sigma(th) i...

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

authors： Gao H,Yao H

更新日期：2004-05-25 00:00:00

abstract：:In the Burmese python (Python molurus), the rapid up-regulation of gastrointestinal (GI) function and morphology after feeding, and subsequent down-regulation on completing digestion, are expected to be mediated by GI hormones and neuropeptides. Hence, we examined postfeeding changes in plasma and tissue concentration...

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

authors： Secor SM,Fehsenfeld D,Diamond J,Adrian TE

更新日期：2001-11-20 00:00:00

abstract：:The ribonucleotide reductase system of Escherichia coli B participates in the biosynthesis of DNA by reducing ribonucleoside diphosphates to the corresponding deoxyribonucleotides. The enzyme is regulated in a complicated way by allosteric modifiers. We now find that infection of E. coli with the bacteriophage T4 resu...

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

authors： Berglund O,Karlström O,Reichard P

更新日期：1969-03-01 00:00:00

abstract：:Mitochondrial cytochrome c oxidase plays an essential role in aerobic cellular respiration, reducing dioxygen to water in a process coupled with the pumping of protons across the mitochondrial inner membrane. An aspartate residue, Asp-51, located near the enzyme surface, undergoes a redox-coupled x-ray structural chan...

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

authors： Tsukihara T,Shimokata K,Katayama Y,Shimada H,Muramoto K,Aoyama H,Mochizuki M,Shinzawa-Itoh K,Yamashita E,Yao M,Ishimura Y,Yoshikawa S

更新日期：2003-12-23 00:00:00

abstract：:Visual crowding is a breakdown in object identification that occurs in cluttered scenes, a process that represents the principle restriction on visual performance in the periphery. When crowded objects are presented experimentally, a key finding is that observers frequently report nearby flanking items instead of the ...

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

authors： Greenwood JA,Bex PJ,Dakin SC

更新日期：2009-08-04 00:00:00

abstract：:Canavan's disease (CD) is a fatal, hereditary disorder of CNS development that has been linked to mutations in the gene for the enzyme aspartoacylase (ASPA) (EC 3.5.1.15). ASPA acts to hydrolyze N-acetylaspartate (NAA) into l-aspartate and acetate, but the connection between ASPA deficiency and the failure of proper C...

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

authors： Madhavarao CN,Arun P,Moffett JR,Szucs S,Surendran S,Matalon R,Garbern J,Hristova D,Johnson A,Jiang W,Namboodiri MA

更新日期：2005-04-05 00:00:00

abstract：:Biological membranes are highly dynamic and complex lipid bilayers, responsible for the fate of living cells. To achieve this function, the hydrating environment is crucial. However, membrane imaging typically neglects water, focusing on the insertion of probes, resonant responses of lipids, or the hydrophobic core. O...

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

authors： Tarun OB,Hannesschläger C,Pohl P,Roke S

更新日期：2018-04-17 00:00:00

abstract：:The crystal structure of the decapeptide Boc-Aib-Glu(OBzl)-Leu-Aib-Ala-Leu-Aib-Ala-Lys(Z)-Aib-OMe (where Aib is alpha-aminoisobutyryl, Boc is t-butoxycarbonyl, OBzl is benzyl ester, and Z is benzyloxycarbonyl) illustrates a parallel zipper arrangement of interacting helical peptide columns. Head-to-tail NH...OC hydrog...

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

authors： Karle IL,Flippen-Anderson JL,Uma K,Balaram P

更新日期：1990-10-01 00:00:00

abstract：:Soluble N-ethylmaleimide-sensitive fusion protein attachment protein receptor (SNARE) protein interactions at the synaptic vesicle/plasma membrane interface play an essential role in neurotransmitter release. The membrane-proximal region (amino acids 77-90) of the v-SNARE vesicle-associated membrane protein 2 (VAMP 2,...

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

authors： de Haro L,Ferracci G,Opi S,Iborra C,Quetglas S,Miquelis R,Lévêque C,Seagar M

更新日期：2004-02-10 00:00:00

abstract：:Social interactions are fundamental for human behavior, but the quantification of their neural underpinnings remains challenging. Here, we used hyperscanning functional MRI (fMRI) to study information flow between brains of human dyads during real-time social interaction in a joint attention paradigm. In a hardware se...

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

authors： Bilek E,Ruf M,Schäfer A,Akdeniz C,Calhoun VD,Schmahl C,Demanuele C,Tost H,Kirsch P,Meyer-Lindenberg A

更新日期：2015-04-21 00:00:00

abstract：:For decades, scientists have debated whether supercooled liquids stop flowing below a glass transition temperature [Formula: see text] or whether motion continues to slow gradually down to zero temperature. Answering this question is challenging because human time scales set a limit on the largest measurable viscosity...

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

authors： Jadhao V,Robbins MO

更新日期：2017-07-25 00:00:00