Mutational analysis of protein phosphatase 2C involved in abscisic acid signal transduction in higher plants.

abstract：:Cyanobacterial clock proteins KaiA and KaiC are proposed as positive and negative regulators in the autoregulatory circadian kaiBC expression, respectively. Here, we show that activation of kaiBC expression by kaiA requires KaiC, suggesting a positive feedback control in the cyanobacterial clockwork. We found that rob...

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

authors： Iwasaki H,Nishiwaki T,Kitayama Y,Nakajima M,Kondo T

更新日期：2002-11-26 00:00:00

abstract：:Identification of the underlying molecular mechanisms for a derived phenotype by adaptive evolution is difficult. Here, we performed a systems-level inquiry into the metabolic changes occurring in the yeast Saccharomyces cerevisiae as a result of its adaptive evolution to increase its specific growth rate on galactose...

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

authors： Hong KK,Vongsangnak W,Vemuri GN,Nielsen J

更新日期：2011-07-19 00:00:00

abstract：:Endosomal cargo travels through a dynamic vesicle network en route to degradation by lysosomes or recycling through the Golgi apparatus back to the cell surface. Rab5 is a key determinant of the early endosomes by organizing effector proteins in specific subdomains and mediating early endosome fusion. We find that ear...

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

authors： Antignani A,Youle RJ

更新日期：2008-06-10 00:00:00

abstract：:Male relationships in most species of mammals generally are characterized by intense intrasexual competition, with little bonding among unrelated individuals. In contrast, human societies are characterized by high levels of cooperation and strong bonds among both related and unrelated males. The emergence of cooperati...

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

authors： Patzelt A,Kopp GH,Ndao I,Kalbitzer U,Zinner D,Fischer J

更新日期：2014-10-14 00:00:00

abstract：:Porcine and bovine GH receptor (GHR) cDNAs were stably expressed in mouse L cells, which normally do not possess detectable levels of mouse GHR. Expression of the GHR cDNAs resulted in specific binding of 125I-labeled GH by these cell lines. To study GHR-related signaling events in these cells, protein tyrosine phosph...

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

authors： Wang X,Xu B,Souza SC,Kopchick JJ

更新日期：1994-02-15 00:00:00

abstract：:Although in decline after successful anti-HIV therapy, B-cell lymphomas are still elevated in HIV-1-seropositive (HIV+) persons, and the mechanisms are obscure. The HIV-1 matrix protein p17 persists in germinal centers long after HIV-1 drug suppression, and some p17 variants (vp17s) activate Akt signaling and promote ...

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

authors： Dolcetti R,Giagulli C,He W,Selleri M,Caccuri F,Eyzaguirre LM,Mazzuca P,Corbellini S,Campilongo F,Marsico S,Giombini E,Muraro E,Rozera G,De Paoli P,Carbone A,Capobianchi MR,Ippolito G,Fiorentini S,Blattner WA,Lu W,

更新日期：2015-11-17 00:00:00

abstract：:The dynamics of Helicobacter pylori colonization from its acquisition through the development of steady-state are examined through a mathematical model that includes the host response. The model encompasses both host and microbiological variation. The individual capacity of the host response is shown to be a key model...

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

authors： Blaser MJ,Kirschner D

更新日期：1999-07-20 00:00:00

abstract：:Photoactivation of the retinal photoreceptor rhodopsin proceeds through a cascade of intermediates, resulting in protein-protein interactions catalyzing the activation of the G-protein transducin (Gt). Using stabilization and photoregeneration of the receptor's signaling state and Gt activation assays, we provide evid...

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

authors： Kisselev OG,Meyer CK,Heck M,Ernst OP,Hofmann KP

更新日期：1999-04-27 00:00:00

abstract：:Inbred Lewis (LEW/N) female rats develop an arthritis in response to group A streptococcal cell wall peptidoglycan polysaccharide (SCW), which mimics human rheumatoid arthritis. Histocompatible Fischer (F344/N) rats do not develop arthritis in response to the same SCW stimulus. To evaluate this difference in inflammat...

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

authors： Sternberg EM,Hill JM,Chrousos GP,Kamilaris T,Listwak SJ,Gold PW,Wilder RL

更新日期：1989-04-01 00:00:00

abstract：:We have devised a class of isothermal reactions for amplifying DNA. These homogeneous reactions rapidly synthesize short oligonucleotides (8-16 bases) specified by the sequence of an amplification template. Versions of the reactions can proceed in either a linear or an exponential amplification mode. Both of these rea...

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

authors： Van Ness J,Van Ness LK,Galas DJ

更新日期：2003-04-15 00:00:00

abstract：:Protein phosphorylation is a ubiquitous and one of the most effective means of regulating protein activity. Receptor phosphorylation is a key event in signal transduction. The question, therefore, that arises is whether this modulatory mechanism might produce functional changes in a membrane receptor in the absence of...

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

authors： Ferrer-Montiel AV,Montal MS,Díaz-Muñoz M,Montal M

更新日期：1991-11-15 00:00:00

abstract：:Exposure of cholera toxin to membrane particles prepared from sarcoma 180 cells gives rise to a variety of fragments which are capable of activating adenylate cyclase [ATP:pyrophosphate-lyase (cyclizing), EC 4.6.1.1]. A major component of these fragments has an apparent molecular weight in the 8,000-10,000 range. The ...

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

authors： Matuo Y,Wheeler MA,Bitensky MW

更新日期：1976-08-01 00:00:00

abstract：:The spectra of the alpha, beta, and gamma forms of zinc monoarsanilazotyrosine-248 carboxypeptidase A are indistinguishable. At pH 8.2 their crystals are yellow, while their solutions are red, lambda(max) 510 nm. Absorption and circular dichroism-pH titrations of the modified zinc and apoenzymes demonstrate that the a...

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

authors： Johansen JT,Vallee BL

更新日期：1973-07-01 00:00:00

abstract：:We have recently shown that p-terphenyl-3,5,3',5'-tetracarboxylic acid adsorbed on graphite self-assembles into a two-dimensional rhombus random tiling. This tiling is close to ideal, displaying long-range correlations punctuated by sparse localized tiling defects. In this article we explore the analogy between dynami...

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

authors： Garrahan JP,Stannard A,Blunt MO,Beton PH

更新日期：2009-09-08 00:00:00

abstract：:Urate oxidase (UOxase; urate:oxygen oxidoreductase, EC 1.7.3.3), which catalyzes the oxidation of uric acid to allantoin, is present in most mammals but is absent in humans and certain primates. A cDNA clone for UOxase containing an insert of 1.3 kilobases (kb) was isolated from a lambda gt11 cDNA library prepared fro...

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

authors： Reddy PG,Nemali MR,Reddy MK,Reddy MN,Yuan PM,Yuen S,Laffler TG,Shiroza T,Kuramitsu HK,Usuda N

更新日期：1988-12-01 00:00:00

abstract：:In Epstein-Barr virus (EBV)-positive Burkitt lymphoma (BL) the role of EBV in the translocation and deregulation of the MYC oncogene remains unknown. By utilizing an EBV-negative BL (BJAB) and several EBV-positive sublines derived from it by in vitro infection, it was possible to show that the presence of the virus wa...

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

authors： Lacy J,Summers WP,Watson M,Glazer PM,Summers WC

更新日期：1987-08-01 00:00:00

abstract：:Fisheries-induced evolution and its impact on the productivity of exploited fish stocks remains a highly contested research topic in applied fish evolution and fisheries science. Although many quantitative models assume that larger, more fecund fish are preferentially removed by fishing, there is no empirical evidence...

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

authors： Sutter DA,Suski CD,Philipp DP,Klefoth T,Wahl DH,Kersten P,Cooke SJ,Arlinghaus R

更新日期：2012-12-18 00:00:00

abstract：:The neotropical Heliconius butterflies are famous examples of Müllerian mimicry, due to the diverse array of shared, brightly colored wing patterns that advertise the butterflies' unpalatability. The parallel geographical variation in these patterns within several widespread species has been invoked to support the con...

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

authors： Brower AV

更新日期：1994-07-05 00:00:00

abstract：:The dominant insulin-stimulated ribosomal protein S6 kinase activity was purified to near homogeneity from insulin-treated 32P-labeled rat H4 hepatoma cells and found to copurify with a 70-kDa 32P-labeled polypeptide. The dominant S6 kinase purified from livers of cycloheximide-treated rats is also a 70-kDa polypeptid...

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

authors： Price DJ,Gunsalus JR,Avruch J

更新日期：1990-10-01 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 introduce a quantitative framework for assessing the generation of crossovers in DNA shuffling experiments. The approach uses free energy calculations and complete sequence information to model the annealing process. Statistics obtained for the annealing events then are combined with a reassembly algorithm to infer...

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

authors： Moore GL,Maranas CD,Lutz S,Benkovic SJ

更新日期：2001-03-13 00:00:00

abstract：:Replication-competent viruses, such as Vaccinia virus (VACV), are powerful tools for the development of oncolytic viral therapies and elicit superior immune responses when used as vaccine and immunotherapeutic vectors. However, severe complications from uncontrolled viral replication can occur, particularly in immunoc...

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

authors： Grigg P,Titong A,Jones LA,Yilma TD,Verardi PH

更新日期：2013-09-17 00:00:00

abstract：:In the last few years, data from experiments employing transgenic models of autoimmune disease have strengthened a particular concept of autoimmunity: disease results not so much from cracks in tolerance induction systems, leading to the generation of anti-self repertoire, as from the breakdown of secondary systems th...

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

authors： André I,Gonzalez A,Wang B,Katz J,Benoist C,Mathis D

更新日期：1996-03-19 00:00:00

abstract：:HLA-DO (DO) is a nonclassic class II heterodimer that inhibits the action of the class II peptide exchange catalyst, HLA-DM (DM), and influences DM localization within late endosomes and exosomes. In addition, DM acts as a chaperone for DO and is required for its egress from the endoplasmic reticulum (ER). These recip...

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

authors： Yoon T,Macmillan H,Mortimer SE,Jiang W,Rinderknecht CH,Stern LJ,Mellins ED

更新日期：2012-07-10 00:00:00

abstract：:The recent discovery of small molecules targeting the cytochrome bc 1 :aa 3 in Mycobacterium tuberculosis triggered interest in the terminal respiratory oxidases for antituberculosis drug development. The mycobacterial cytochrome...

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

authors： Kalia NP,Hasenoehrl EJ,Ab Rahman NB,Koh VH,Ang MLT,Sajorda DR,Hards K,Grüber G,Alonso S,Cook GM,Berney M,Pethe K

更新日期：2017-07-11 00:00:00

abstract：:The microsomal triglyceride (TG) transfer protein (MTP) is a heterodimeric lipid transfer protein that catalyzes the transport of triglyceride, cholesteryl ester, and phosphatidylcholine between membranes. Previous studies showing that the proximal cause of abetalipoproteinemia is an absence of MTP indicate that MTP f...

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

authors： Jamil H,Gordon DA,Eustice DC,Brooks CM,Dickson JK Jr,Chen Y,Ricci B,Chu CH,Harrity TW,Ciosek CP Jr,Biller SA,Gregg RE,Wetterau JR

更新日期：1996-10-15 00:00:00

abstract：:Relaxin is a member of the insulin family of polypeptides that is best known as a reproductive hormone. In an effort to elucidate the mechanism of action of relaxin we previously localized the specific binding sites of a 32P-labeled relaxin in the rat uterus and brain. These studies suggested that, in addition to its ...

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

authors： Osheroff PL,Cronin MJ,Lofgren JA

更新日期：1992-03-15 00:00:00

abstract：:For reasons that are unclear the production of embryonic stem cells from ungulates has proved elusive. Here, we describe induced pluripotent stem cells (iPSC) derived from porcine fetal fibroblasts by lentiviral transduction of 4 human (h) genes, hOCT4, hSOX2, hKLF4, and hc-MYC, the combination commonly used to create...

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

authors： Ezashi T,Telugu BP,Alexenko AP,Sachdev S,Sinha S,Roberts RM

更新日期：2009-07-07 00:00:00

abstract：:Stimulation of the region antero-ventral to the third cerebral ventricle (AV3V) by a cholinergic drug, carbachol, and lesions of the AV3V have been demonstrated in previous studies to either augment or decrease sodium excretion, respectively. Atrial natriuretic peptide (ANP) dramatically increases renal sodium excreti...

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

authors： Baldissera S,Menani JW,dos Santos LF,Favaretto AL,Gutkowska J,Turrin MQ,McCann SM,Antunes-Rodrigues J

更新日期：1989-12-01 00:00:00

abstract：:We describe the mechanical separation of the two complementary strands of a single molecule of bacteriophage lambda DNA. The 3' and 5' extremities on one end of the molecule are pulled progressively apart, and this leads to the opening of the double helix. The typical forces along the opening are in the range of 10-15...

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

authors： Essevaz-Roulet B,Bockelmann U,Heslot F

更新日期：1997-10-28 00:00:00