Complementation of areA- regulatory gene mutations of Aspergillus nidulans by the heterologous regulatory gene nit-2 of Neurospora crassa.

abstract：:Oligothiophenes incorporating MM quadruple bonds have been prepared from the reactions between Mo(2)(TiPB)(4) (TiPB = 2,4,6-triisopropyl benzoate) and 3',4'-dihexyl-2,2'-:5',2''-terthiophene-5,5''-dicarboxylic acid. The oligomers of empirical formula Mo(2)(TiPB)(2)(O(2)C(Th)-C(4)(n-hexyl)(2)S-(Th)CO(2)) are soluble in...

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

authors： Burdzinski GT,Chisholm MH,Chou PT,Chou YH,Feil F,Gallucci JC,Ghosh Y,Gustafson TL,Ho ML,Liu Y,Ramnauth R,Turro C

更新日期：2008-10-07 00:00:00

abstract：:Recent data indicate that sustained elevations in plasma insulin suppress the mRNA for IRS-2, a component of the insulin signaling pathway in liver, and that this deficiency contributes to hepatic insulin resistance and inappropriate gluconeogenesis. Here, we use nuclear run-on assays to show that insulin inhibits tra...

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

authors： Zhang J,Ou J,Bashmakov Y,Horton JD,Brown MS,Goldstein JL

更新日期：2001-03-27 00:00:00

abstract：:Type I Interferons (IFNs) are requisite components in antiviral innate immunity. Classically, a Toll-like receptor-dependent pathway induces type I interferons. However, recent recognition of melanoma differentiation associated gene-5 (MDA-5) and retinoic acid inducible gene-I (RIG-I) as primary sensors of RNA viruses...

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

authors： Sarkar D,Desalle R,Fisher PB

更新日期：2008-11-04 00:00:00

abstract：:Sensory receptor neurons match their dynamic range to ecologically relevant stimulus intensities. How this tuning is achieved is poorly understood in most receptors. The roundworm Caenorhabditis elegans avoids 21% O2 and hypoxia and prefers intermediate O2 concentrations. We show how this O2 preference is sculpted by ...

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

authors： Oda S,Toyoshima Y,de Bono M

更新日期：2017-06-06 00:00:00

abstract：:Different experimental structures of the same protein or of proteins with high sequence similarity contain many small variations. Here we construct ensembles of "high-sequence similarity Protein Data Bank" (HSP) structures and consider the extent to which such ensembles represent the structural heterogeneity of the na...

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

authors： Best RB,Lindorff-Larsen K,DePristo MA,Vendruscolo M

更新日期：2006-07-18 00:00:00

abstract：:The present work shows that arachidonic acid and some other long chain polyunsaturated fatty acids such as docosahexaenoic acid, which is abundant in fish oil, produce a direct open channel block of the major voltage-dependent K+ channel (Kv1.5) cloned in cardiac cells. The inhibitory action of these selected fatty ac...

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

authors： Honoré E,Barhanin J,Attali B,Lesage F,Lazdunski M

更新日期：1994-03-01 00:00:00

abstract：:The activity of a number of proteins is regulated by self-processing reactions. Elegant examples are the cleavage of the prokaryotic LexA and lambdaCI transcriptional repressors and the UmuD-like mutagenesis proteins. Various studies support the hypothesis that LexA and lambdaCI cleavage reactions are predominantly in...

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

authors： McDonald JP,Frank EG,Levine AS,Woodgate R

更新日期：1998-02-17 00:00:00

abstract：:Endothelin, originally purified from porcine aortic endothelial cells, is widely distributed in tissues and is recognized as a product of epithelial cells, glial cells, and neurons in addition to endothelial cells. We found evidence by mRNA content and immunoreactivity that this peptide is synthesized in rat parathyro...

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

authors： Fujii Y,Moreira JE,Orlando C,Maggi M,Aurbach GD,Brandi ML,Sakaguchi K

更新日期：1991-05-15 00:00:00

abstract：:Cellular wound healing or the repair of plasma membrane/cell wall damage (plasma membrane damage) occurs frequently in nature. Although various cellular perturbations, such as DNA damage, spindle misalignment, and impaired daughter cell formation, are monitored by cell cycle checkpoint mechanisms in budding yeast, whe...

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

authors： Kono K,Al-Zain A,Schroeder L,Nakanishi M,Ikui AE

更新日期：2016-06-21 00:00:00

abstract：:Helicobacter pylori is a Gram-negative bacterial pathogen with a small genome of 1.64-1.67 Mb. More than 20 putative DNA restriction-modification (R-M) systems, comprising more than 4% of the total genome, have been identified in the two completely sequenced H. pylori strains, 26695 and J99, based on sequence similari...

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

authors： Lin LF,Posfai J,Roberts RJ,Kong H

更新日期：2001-02-27 00:00:00

abstract：:Converging TGF-beta and insulin-like neuroendocrine signaling pathways regulate whether Caenorhabditis elegans develops reproductively or arrests at the dauer larval stage. We examined whether neurotransmitters act in the dauer entry or recovery pathways. Muscarinic agonists promote recovery from dauer arrest induced ...

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

authors： Tissenbaum HA,Hawdon J,Perregaux M,Hotez P,Guarente L,Ruvkun G

更新日期：2000-01-04 00:00:00

abstract：:Partial amino acid sequence of the Ia molecule encoded by the I-E or I-C (I-EC) subregion of the major histocompatibility complex of the mouse are presented. The Ia molecule appears to be comprised of two noncovalently associated polypeptides. The larger subunit, alpha, has an approximate molecular weight of 35,000 an...

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

authors： McMillan M,Cecka JM,Murphy DB,McDevitt HO,Hood L

更新日期：1977-11-01 00:00:00

abstract：:In previous studies from this laboratory, the binding regions of alpha-neurotoxins on human and Torpedo acetylcholine (AcCho) receptors (AcChoRs) and the binding regions for the receptor on the toxin were characterized with synthetic peptides of the respective molecules. In the present work, peptides representing the ...

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

authors： Ruan KH,Spurlino J,Quiocho FA,Atassi MZ

更新日期：1990-08-01 00:00:00

abstract：:Suppressor of variegation 3-9 homolog 1 (SUV39H1), a histone methyltransferase, catalyzes histone 3 lysine 9 trimethylation and is involved in heterochromatin organization and genome stability. However, the mechanism for regulation of the enzymatic activity of SUV39H1 in cancer cells is not yet well known. In this stu...

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

authors： Wang D,Zhou J,Liu X,Lu D,Shen C,Du Y,Wei FZ,Song B,Lu X,Yu Y,Wang L,Zhao Y,Wang H,Yang Y,Akiyama Y,Zhang H,Zhu WG

更新日期：2013-04-02 00:00:00

abstract：:Cytoplasmic RNA extracted from human tissue culture cells infected with adenovirus type 2 was used to program protein synthesis in a cell-free system derived from mammalian cells. Analysis of the protein product by polyacrylamide gel electrophoresis revealed ten adenovirus-specific polypeptides. Five of these were fur...

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

authors： Anderson CW,Lewis JB,Atkins JF,Gesteland RF

更新日期：1974-07-01 00:00:00

abstract：:Myelin basic proteins (MBP) are major constituents of the myelin sheath of oligodendrocytes and Schwann cells in the central nervous system and the peripheral nervous system, respectively. We previously showed that MBP-related transcripts are present in the bone marrow and the immune system. These mRNAs are transcribe...

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

authors： Marty MC,Alliot F,Rutin J,Fritz R,Trisler D,Pessac B

更新日期：2002-06-25 00:00:00

abstract：:Ultraviolet irradiation of the [3H]colchicine-tubulin complex leads to direct photolabeling of tubulin with low but practicable efficiency. The bulk (70% to greater than 90%) of the labeling occurs on beta-tubulin and appears early after irradiation, whereas alpha-tubulin is labeled later. The labeling ratio of beta-t...

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

authors： Wolff J,Knipling L,Cahnmann HJ,Palumbo G

更新日期：1991-04-01 00:00:00

abstract：:Fibrodysplasia ossificans progressiva (FOP) patients carry a missense mutation in ACVR1 [617G > A (R206H)] that leads to hyperactivation of BMP-SMAD signaling. Contrary to a previous study, here we show that FOP fibroblasts showed an increased efficiency of induced pluripotent stem cell (iPSC) generation. This positiv...

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

authors： Hayashi Y,Hsiao EC,Sami S,Lancero M,Schlieve CR,Nguyen T,Yano K,Nagahashi A,Ikeya M,Matsumoto Y,Nishimura K,Fukuda A,Hisatake K,Tomoda K,Asaka I,Toguchida J,Conklin BR,Yamanaka S

更新日期：2016-11-15 00:00:00

abstract：:Ferric uptake regulation protein (Fur) is a bacterial global regulator that uses iron as a cofactor to bind to specific DNA sequences. The function of Fur is not limited to iron homeostasis. A wide variety of genes involved in various mechanisms such as oxidative and acid stresses are under Fur control. Flavohemoglobi...

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

authors： D'Autreaux B,Touati D,Bersch B,Latour JM,Michaud-Soret I

更新日期：2002-12-24 00:00:00

abstract：:In Gram-negative bacteria, the outer membrane contains primarily β-barrel transmembrane proteins and lipoproteins. The insertion and assembly of β-barrel outer-membrane proteins (OMPs) is mediated by the β-barrel assembly machinery (BAM) complex, the core component of which is the 16-stranded transmembrane β-barrel Ba...

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

authors： Lundquist K,Bakelar J,Noinaj N,Gumbart JC

更新日期：2018-08-21 00:00:00

abstract：:Despite sharing a common architecture with archetypal voltage-gated ion channels (VGICs), hyperpolarization- and cAMP-activated ion (HCN) channels open upon hyperpolarization rather than depolarization. The basic motions of the voltage sensor and pore gates are conserved, implying that these domains are inversely coup...

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

authors： Cowgill J,Klenchin VA,Alvarez-Baron C,Tewari D,Blair A,Chanda B

更新日期：2019-01-08 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：:Chemomechanical coupling in muscle contraction may be due to "swinging crossbridges," such that a change in the angle at which the myosin head binds to the actin filament is tightly coupled to release of products of ATP hydrolysis. This model would limit the step size, the unit displacement of actin produced by a sing...

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

authors： Toyoshima YY,Kron SJ,Spudich JA

更新日期：1990-09-01 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：:The multisubunit enzyme aspartate transcarbamylase consists of six copies of two types of polypeptide chains, catalytic (C) and regulatory (R). A complex formed by the partial dissociation of this enzyme has been isolated. This species, which has the structure C(6)R(4), is a likely intermediate in the stepwise dissoci...

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

authors： Evans DR,Pastra-Landis SC,Lipscomb WN

更新日期：1974-04-01 00:00:00

abstract：:In a recent article, Hunter uses the late George Varley and George Gradwell's long-term data on the winter moth (Operophtera brumata) and green tortrix (Tortrix viridana) populations to propose a method of quantifying the relative importance of top-down effects (because of natural enemies) and bottom-up effects (becau...

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

authors： Hassell MP,Crawley MJ,Godfray HC,Lawton JH

更新日期：1998-09-01 00:00:00

abstract：:Glucagon-like peptide 1 (GLP-1) is a hormone derived from the preproglucagon molecule and is secreted by intestinal L cells. It is the most potent stimulator of glucose-induced insulin secretion and also suppresses in vivo acid secretion by gastric glands. A cDNA for the GLP-1 receptor was isolated by transient expres...

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

authors： Thorens B

更新日期：1992-09-15 00:00:00

abstract：:Herpes simplex virus type 2 (HSV-2) DNA was treated with four restriction endonucleases (EcoRI, HincIII, Bgl II, and Xba I) and eight fragments were purified and labeled with 32P in vitro. The kinetics of renaturation of each of the fragments was measured in the presence of DNA extracted from 333-8-9, a hamster cell l...

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

authors： Galloway DA,Copple CD,McDougall JK

更新日期：1980-02-01 00:00:00

abstract：:One of the most long-lived models in plant science is the belief that the long-distance transport and ratio of two plant hormones, auxin and cytokinin, at the site of action control major developmental events such as apical dominance. We have used in vivo deuterium labeling and mass spectrometry to investigate the dyn...

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

authors： Nordström A,Tarkowski P,Tarkowska D,Norbaek R,Astot C,Dolezal K,Sandberg G

更新日期：2004-05-25 00:00:00

abstract：:In 1000 primary gastric carcinomas, 70 (7.0%) contained Epstein-Barr virus (EBV) genomic sequences detected by PCR and Southern blots. The positive tumors comprised 8 of 9 (89%) undifferentiated lymphoepithelioma-like carcinomas, 27 of 476 (5.7%) poorly differentiated adenocarcinomas, and 35 of 515 (6.8%) moderately t...

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

authors： Imai S,Koizumi S,Sugiura M,Tokunaga M,Uemura Y,Yamamoto N,Tanaka S,Sato E,Osato T

更新日期：1994-09-13 00:00:00