The aphid transmission factor of cauliflower mosaic virus forms a stable complex with microtubules in both insect and plant cells.

abstract：:The basal ganglia are critical for selecting actions and evaluating their outcome. Although the circuitry for selection is well understood, how these nuclei evaluate the outcome of actions is unknown. Here, we show in lamprey that a separate evaluation circuit, which regulates the habenula-projecting globus pallidus (...

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

authors： Stephenson-Jones M,Kardamakis AA,Robertson B,Grillner S

更新日期：2013-09-17 00:00:00

abstract：:By combining the pairwise interactions between proteins, as predicted by the conserved co-occurrence of their genes in operons, we obtain protein interaction networks. Here we study the properties of such networks to identify functional modules: sets of proteins that together are involved in a biological process. The ...

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

authors： Snel B,Bork P,Huynen MA

更新日期：2002-04-30 00:00:00

abstract：:The heat shock protein (Hsp)70 family of molecular chaperones interacts with unfolded proteins through a C-terminal substrate-binding domain (SBD) that is controlled by nucleotide binding to the N-terminal domain. The ATPase cycle is regulated by cochaperones, including DnaJ proteins that accelerate ATP hydrolysis to ...

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

authors： Awad W,Estrada I,Shen Y,Hendershot LM

更新日期：2008-01-29 00:00:00

abstract：:Noncompliance with social distancing during the early stage of the coronavirus disease 2019 (COVID-19) pandemic poses a great challenge to the public health system. These noncompliance behaviors partly reflect people's concerns for the inherent costs of social distancing while discounting its public health benefits. W...

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

authors： Xie W,Campbell S,Zhang W

更新日期：2020-07-28 00:00:00

abstract：:Metallo-β-lactamases (MBLs) hydrolyze almost all β-lactam antibiotics and are unaffected by clinically available β-lactamase inhibitors (βLIs). Active-site architecture divides MBLs into three classes (B1, B2, and B3), complicating development of βLIs effective against all enzymes. Bisthiazolidines (BTZs) are carboxyl...

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

authors： Hinchliffe P,González MM,Mojica MF,González JM,Castillo V,Saiz C,Kosmopoulou M,Tooke CL,Llarrull LI,Mahler G,Bonomo RA,Vila AJ,Spencer J

更新日期：2016-06-28 00:00:00

abstract：:Peroxisomes play an essential role in a number of different metabolic pathways, including the beta-oxidation of a distinct set of fatty acids and fatty acid derivatives. The importance of the peroxisomal beta-oxidation system in humans is made apparent by the existence of a group of inherited diseases in which peroxis...

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

authors： van Grunsven EG,van Berkel E,Ijlst L,Vreken P,de Klerk JB,Adamski J,Lemonde H,Clayton PT,Cuebas DA,Wanders RJ

更新日期：1998-03-03 00:00:00

abstract：:We have selected from a mixture of random polynucleotides an RNA that is able to replicate in the presence of the DNA-dependent RNA polymerase of Escherichia coli, provided the medium contains Mn(2+) and ITP, in addition to ATP, CTP, and UTP. The RNA consists of a chain of about 125 (+/-25) nucleotides and appears to ...

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

authors： Biebricher CK,Orgel LE

更新日期：1973-03-01 00:00:00

abstract：:X-ray absorption spectra near the Kalpha edge have been measured in various iron group compounds using the intense synchrotron radiation at the Stanford Synchrotron Research Project. In the cubic compounds KMF3 where M = Mn+2, Fe+2, Co+2, Ni+2, and Zn+2, well resolved lines were observed and assigned to the 1s leads t...

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

authors： Shulman GR,Yafet Y,Eisenberger P,Blumberg WE

更新日期：1976-05-01 00:00:00

abstract：:Photonic materials with positionally ordered structure can interact strongly with light to produce brilliant structural colors. Here, we found that the nonperiodic nematic liquid crystals of nanoplates can also display structural color with only significant orientational order. Owing to the loose stacking of the nemat...

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

authors： Zeng M,King D,Huang D,Do C,Wang L,Chen M,Lei S,Lin P,Chen Y,Cheng Z

更新日期：2019-09-10 00:00:00

abstract：:Our main goal is to analyze the geometric and spectral properties of the Picard modular group with Gaussian integer entries acting on the two-dimensional complex hyperbolic space. ...

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

authors： Francsics G,Lax PD

更新日期：2006-07-25 00:00:00

abstract：:The discrepancy between the structural longitudinal organization of the parallel-fiber system in the cerebellar cortex and the functional mosaic-like organization of the cortex has provoked controversial theories about the flow of information in the cerebellum. We address this issue by characterizing the spatiotempora...

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

authors： Cohen D,Yarom Y

更新日期：1998-12-08 00:00:00

abstract：:Despite the recognized role of tumor necrosis factor (TNF) in inflammation and neuronal degeneration, anti-TNF therapeutics failed to treat neurodegenerative diseases. Animal disease models had revealed the antithetic effects of the two TNF receptors (TNFR) in the central nervous system, whereby TNFR1 has been associa...

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

authors： Dong Y,Fischer R,Naudé PJ,Maier O,Nyakas C,Duffey M,Van der Zee EA,Dekens D,Douwenga W,Herrmann A,Guenzi E,Kontermann RE,Pfizenmaier K,Eisel UL

更新日期：2016-10-25 00:00:00

abstract：:The opportunistic pathogen Candida albicans can undergo phenotypic switching between a benign, unicellular phenotype and an invasive, multicellular form that causes candidiasis. Increasingly, strains of Candida are becoming resistant to antifungal drugs, making the treatment of candidiasis difficult, especially in imm...

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

authors： Uchida M,McDermott G,Wetzler M,Le Gros MA,Myllys M,Knoechel C,Barron AE,Larabell CA

更新日期：2009-11-17 00:00:00

abstract：:Scleroderma is a chronic systemic disease that leads to fibrosis of affected organs. Transforming growth factor (TGF) beta has been implicated in the pathogenesis of scleroderma. Smad proteins are signaling transducers downstream from TGF-beta receptors. Three families of Smads have been identified: (i) receptor-regul...

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

authors： Dong C,Zhu S,Wang T,Yoon W,Li Z,Alvarez RJ,ten Dijke P,White B,Wigley FM,Goldschmidt-Clermont PJ

更新日期：2002-03-19 00:00:00

abstract：:Network theory provides a powerful tool for the representation and analysis of complex systems of interacting agents. Here, we investigate the U.S. House of Representatives network of committees and subcommittees, with committees connected according to "interlocks," or common membership. Analysis of this network revea...

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

authors： Porter MA,Mucha PJ,Newman ME,Warmbrand CM

更新日期：2005-05-17 00:00:00

abstract：:We previously isolated from mouse spleen an octapeptide (LSPFPFDL) that in association with the class I major histocompatibility complex protein Ld is recognized by the antigen-specific receptor of an alloreactive CD8+ T-cell clone (2C). Guided by an assay dependent upon the same 2C T-cell receptor, we have now isolat...

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

authors： Udaka K,Tsomides TJ,Walden P,Fukusen N,Eisen HN

更新日期：1993-12-01 00:00:00

abstract：:mRNA-dependent cell-free protein synthesis systems were prepared from a heme-deficient ole3 mutant of the yeast Saccharomyces cerevisiae grown either in the absence or in the presence of the heme precursor delta-aminolevulinate. When supplemented with total yeast mRNA, the two systems-from heme-deficient and from heme...

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

authors： Hamilton B,Hofbauer R,Ruis H

更新日期：1982-12-01 00:00:00

abstract：:Generation of nanomechanical cantilever motion from biomolecular interactions can have wide applications, ranging from high-throughput biomolecular detection to bioactuation. Although it has been suggested that such motion is caused by changes in surface stress of a cantilever beam, the origin of the surface-stress ch...

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

authors： Wu G,Ji H,Hansen K,Thundat T,Datar R,Cote R,Hagan MF,Chakraborty AK,Majumdar A

更新日期：2001-02-13 00:00:00

abstract：:Our understanding of the mechanisms of neural circuit assembly is far from complete. Identification of wiring molecules with novel mechanisms of action will provide insights into how complex and heterogeneous neural circuits assemble during development. In the Drosophila olfactory system, 50 classes of olfactory recep...

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

authors： Xie Q,Wu B,Li J,Xu C,Li H,Luginbuhl DJ,Wang X,Ward A,Luo L

更新日期：2019-08-06 00:00:00

abstract：:Four mouse POU domain genomic DNA clones--Brain-1, Brain-2, Brain-4, and Scip--and Brain-2 cDNA, which are expressed in adult brain, were cloned and the coding and noncoding regions of the genes were sequenced. The amino acid sequences of the four POU domains are highly conserved; sequences in other regions of the pro...

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

authors： Hara Y,Rovescalli AC,Kim Y,Nirenberg M

更新日期：1992-04-15 00:00:00

abstract：:The necroptosis cell death pathway has been implicated in host defense and in the pathology of inflammatory diseases. While phosphorylation of the necroptotic effector pseudokinase Mixed Lineage Kinase Domain-Like (MLKL) by the upstream protein kinase RIPK3 is a hallmark of pathway activation, the precise checkpoints ...

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

authors： Petrie EJ,Birkinshaw RW,Koide A,Denbaum E,Hildebrand JM,Garnish SE,Davies KA,Sandow JJ,Samson AL,Gavin X,Fitzgibbon C,Young SN,Hennessy PJ,Smith PPC,Webb AI,Czabotar PE,Koide S,Murphy JM

更新日期：2020-04-14 00:00:00

abstract：:Human diploid fibroblasts (HDFs) possess Ca(2+)-dependent membrane currents. These currents were suppressed in late-passage normal (senescent) HDFs and prematurely senescent HDFs derived from a subject with Werner syndrome (WS), compared with early-passage normal (young) HDFs. When young HDFs were microinjected with m...

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

authors： Liu S,Thweatt R,Lumpkin CK Jr,Goldstein S

更新日期：1994-03-15 00:00:00

abstract：:Brain function depends on adaptive self-organization of large-scale neural assemblies, but little is known about quantitative network parameters governing these processes in humans. Here, we describe the topology and synchronizability of frequency-specific brain functional networks using wavelet decomposition of magne...

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

authors： Bassett DS,Meyer-Lindenberg A,Achard S,Duke T,Bullmore E

更新日期：2006-12-19 00:00:00

abstract：:Originally recognized for their role in lipoprotein metabolism and cardiovascular disease, apolipoprotein (apo) E isoforms (apoE2, apoE3, and apoE4) have also been implicated to play a key role in several biological processes not directly related to their lipid transport function. For example, apoE4 contributes signif...

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

authors： Burt TD,Agan BK,Marconi VC,He W,Kulkarni H,Mold JE,Cavrois M,Huang Y,Mahley RW,Dolan MJ,McCune JM,Ahuja SK

更新日期：2008-06-24 00:00:00

abstract：:Fibrosis is caused by scar tissue formation in internal organs and is associated with 45% of deaths in the United States. Two closely related human serum proteins, serum amyloid P (SAP) and C-reactive protein (CRP), strongly affect fibrosis. In multiple animal models, and in Phase 1 and Phase 2 clinical trials, SAP af...

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

authors： Cox N,Pilling D,Gomer RH

更新日期：2015-07-07 00:00:00

abstract：:The configuration of the heme-carbonyl group upon binding of carbon monoxide to sperm whale myoglobin (Mb) in crystals is evaluated on the basis of infrared spectroscopic methods. Multiplets of the totally symmetric C-O stretching mode are observed for the heme-bound ligand near 1933, 1944, and 1967 cm-1, correspondin...

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

authors： Makinen MW,Houtchens RA,Caughey WS

更新日期：1979-12-01 00:00:00

abstract：:CCAAT/enhancer-binding protein δ (C/EBPδ) recently emerged as an essential player in the inflammatory response to bacterial infections. C/EBPδ levels increase rapidly after a proinflammatory stimulus, and increasing C/EBPδ levels seem to be indispensable for amplification of the inflammatory response. Here we aimed to...

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

authors： Duitman J,Schouten M,Groot AP,Borensztajn KS,Daalhuisen JB,Florquin S,van der Poll T,Spek CA

更新日期：2012-06-05 00:00:00

abstract：:Embryos carrying null mutations of both retinoid X receptors alpha and beta (RXRalpha-/-/RXRbeta-/- mutants) were generated. These mutant embryos die between 9.5 and 10.5 days of gestation and display a wide range of abnormalities. The cause of the lethality appears to be the lack of formation of the labyrinthine zone...

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

authors： Wendling O,Chambon P,Mark M

更新日期：1999-01-19 00:00:00

abstract：:Protein-protein interactions are essential for life. Yet, our understanding of the general principles governing binding is not complete. In the present study, we show that the interface between proteins is built in a modular fashion; each module is comprised of a number of closely interacting residues, with few intera...

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

authors： Reichmann D,Rahat O,Albeck S,Meged R,Dym O,Schreiber G

更新日期：2005-01-04 00:00:00

abstract：:The hippocampus has a well-documented role for spatial navigation across species, but its role for spatial memory in nonnavigational tasks is uncertain. In particular, when monkeys are tested in tasks that do not require navigation, spatial memory seems unaffected by lesions of the hippocampus. However, the interpreta...

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

authors： Forcelli PA,Palchik G,Leath T,DesJardin JT,Gale K,Malkova L

更新日期：2014-03-18 00:00:00