Resistance to apoptosis caused by PIG-A gene mutations in paroxysmal nocturnal hemoglobinuria.

abstract：:Walker-256 carcinosarcoma cells grown in tissue culture medium containing inhibitory DNA prepared from the tumor are shown to have an unaltered growth in vitro, but a diminished capacity to produce malignant tumors on injection into the rat. Coincident with this change in virulence is the induction of tRNA methylase i...

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

authors： Halpern BC,Halpern RM,Chaney SQ,Smith RA

更新日期：1970-12-01 00:00:00

abstract：:Lysine to methionine (K-to-M) mutations in genes encoding histone H3 are thought to drive a subset of pediatric brain and bone cancers. These high-frequency K-to-M mutations occur at sites of methylation on histone H3, and tumors containing the mutant histones exhibit a global loss of specific histone methylation mark...

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

authors： Jayaram H,Hoelper D,Jain SU,Cantone N,Lundgren SM,Poy F,Allis CD,Cummings R,Bellon S,Lewis PW

更新日期：2016-05-31 00:00:00

abstract：:Despite the success statistical physics has enjoyed at predicting the properties of materials for given parameters, the inverse problem, identifying which material parameters produce given, desired properties, is only beginning to be addressed. Recently, several methods have emerged across disciplines that draw upon o...

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

authors： Miskin MZ,Khaira G,de Pablo JJ,Jaeger HM

更新日期：2016-01-05 00:00:00

abstract：:The principal sequence feature responsible for intrinsic DNA curvature is generally assumed to be runs of adenines. However, according to the wedge model of DNA curvature, each dinucleotide step is associated with a characteristic deflection of the local helix axis. Thus, an important test of a more general view of se...

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

authors： Bolshoy A,McNamara P,Harrington RE,Trifonov EN

更新日期：1991-03-15 00:00:00

abstract：:Adenylate cyclase [ATP pyrophosphate-lyase (cyclizing), EC 4.6.1.1] activity of purified secretory vesicle membranes from the adrenal medulla is inhibited by I-isoproterenol and I-epinephrine, as well as by nerve growth factor (NGF). The effect of these agents was found to be dose-dependent and, in the case of the cat...

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

authors： Nikodijevic O,Nikodijevic B,Zinder O,Yu MY,Guroff G,Pollard HB

更新日期：1976-03-01 00:00:00

abstract：:Lambdoid phages form clear plaques and show reduced ability to establish immunity in strains of Escherichia coli that lack adenylate cyclase or catabolite activator protein. The absence of the activator protein or cyclic AMP reduces the frequency of lysogenization, but does not prevent steady-state repressor synthesis...

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

authors： Grodzicker T,Arditti RR,Eisen H

更新日期：1972-02-01 00:00:00

abstract：:The gene encoding the glycolytic enzyme triose-phosphate isomerase (TPI; EC 5.3.1.1) has been central to the long-standing controversy on the origin and evolutionary significance of spliceosomal introns by virtue of its pivotal support for the introns-early view, or exon theory of genes. Putative correlations between ...

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

authors： Logsdon JM Jr,Tyshenko MG,Dixon C,D-Jafari J,Walker VK,Palmer JD

更新日期：1995-08-29 00:00:00

abstract：:The effect of fluctuations in rate constants on the kinetic behavior of cyclic reacting systems, caused by a fluctuating external parameter, is studied. It is shown (i) that the stochastic properties of the system can be analyzed analytically by using the usual master equation approach when the external parameter is f...

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

authors： Chen YD

更新日期：1987-02-01 00:00:00

abstract：:One can imagine a variety of mechanisms that should result in self-perpetuating biological states. It is generally assumed that cytosine methylation is propagated in eukaryotes by enzymes that specifically methylate hemimethylated symmetrical sites (e.g., (5')CpGGpC(5') or (5')CpNpGGpNpC(5')). Although there is wide s...

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

authors： Selker EU,Freitag M,Kothe GO,Margolin BS,Rountree MR,Allis CD,Tamaru H

更新日期：2002-12-10 00:00:00

abstract：:Neutrophils are important effector cells in immunity to microorganisms, particularly bacteria. Here, we show that the process of neutrophil apoptosis is delayed in several inflammatory diseases, suggesting that this phenomenon may represent a general feature contributing to the development of neutrophilia, and, theref...

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

authors： Dibbert B,Weber M,Nikolaizik WH,Vogt P,Schöni MH,Blaser K,Simon HU

更新日期：1999-11-09 00:00:00

abstract：:The environmental impact of using recombinant bovine somatotropin (rbST) in dairy production was examined on an individual cow, industry-scale adoption, and overall production system basis. An average 2006 U.S. milk yield of 28.9 kg per day was used, with a daily response to rbST supplementation of 4.5 kg per cow. Rat...

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

authors： Capper JL,Castañeda-Gutiérrez E,Cady RA,Bauman DE

更新日期：2008-07-15 00:00:00

abstract：:Amyotrophic lateral sclerosis (ALS) is a heterogeneous degenerative motor neuron disease linked to numerous genetic mutations in apparently unrelated proteins. These proteins, including SOD1, TDP-43, and FUS, are highly aggregation-prone and form a variety of intracellular inclusion bodies that are characteristic of d...

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

authors： Ciryam P,Lambert-Smith IA,Bean DM,Freer R,Cid F,Tartaglia GG,Saunders DN,Wilson MR,Oliver SG,Morimoto RI,Dobson CM,Vendruscolo M,Favrin G,Yerbury JJ

更新日期：2017-05-16 00:00:00

abstract：:The nicotinic acetylcholine (ACh) receptor (nAChR) plays a crucial role in excitatory neurotransmission and is an important target for drugs and insecticides. Diverse nAChR subtypes with various subunit combinations confer differential selectivity for nicotinic drugs. We investigated the subtype selectivity of nAChR a...

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

authors： Tomizawa M,Maltby D,Talley TT,Durkin KA,Medzihradszky KF,Burlingame AL,Taylor P,Casida JE

更新日期：2008-02-05 00:00:00

abstract：:Ig class-switch recombination (CSR) is a region-specific process that exchanges the constant Ig heavy-chain region and thus modifies an antibody's effector function. DNA lesions in switch (S) regions are induced by activation-induced cytidine deaminase (AID) and uracil-DNA glycosylase 2 (UNG2), subsequently processed ...

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

authors： Kracker S,Imai K,Gardès P,Ochs HD,Fischer A,Durandy AH

更新日期：2010-12-21 00:00:00

abstract：:Underacetylation of histone H4 is thought to be involved in the molecular mechanism of mammalian X chromosome inactivation, which is an important model system for large-scale genetic control in eukaryotes. However, it has not been established whether histone underacetylation plays a critical role in the multistep inac...

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

authors： Wakefield MJ,Keohane AM,Turner BM,Graves JA

更新日期：1997-09-02 00:00:00

abstract：:Production of amyloid-beta protein (Abeta) is initiated by a beta-secretase that cleaves the Abeta precursor protein (APP) at the N terminus of Abeta (the beta site). A recently identified aspartyl protease, BACE, cleaves the beta site and at residue 11 within the Abeta region of APP. Here we show that BACE2, a BACE h...

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

authors： Farzan M,Schnitzler CE,Vasilieva N,Leung D,Choe H

更新日期：2000-08-15 00:00:00

abstract：:We have identified cis-acting regulatory elements in the 5' flanking region of the mouse alpha-fetoprotein (Afp) gene, using the expression of the bacterial gene for chloramphenicol acetyltransferase (CAT) in a transient expression assay. Tissue-specific enhancer activity was determined by transfection of mouse hepato...

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

authors： Widen SG,Papaconstantinou J

更新日期：1986-11-01 00:00:00

abstract：:The spatial coordination of growth is of central importance for the regulation of plant tissue architecture. Individual layers, such as the epidermis, are clonally propagated and structurally maintained by symmetric cell divisions that are oriented along the plane of the layer. The developmental control of this proces...

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

authors： Enugutti B,Kirchhelle C,Oelschner M,Torres Ruiz RA,Schliebner I,Leister D,Schneitz K

更新日期：2012-09-11 00:00:00

abstract：:The Landau spectrum of bismuth is complex and includes many angle-dependent lines in the extreme quantum limit. The adequacy of single-particle theory to describe this spectrum in detail has been an open issue. Here, we present a study of angle-resolved Nernst effect in bismuth, which maps the angle-resolved Landau sp...

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

authors： Zhu Z,Fauqué B,Malone L,Antunes AB,Fuseya Y,Behnia K

更新日期：2012-09-11 00:00:00

abstract：:A promising strategy for DNA sequencing exploits transposons to provide mobile sites for the binding of sequencing primers. For such a strategy to be maximally efficient, the location and orientation of the transposon must be readily determined and the insertion sites should be randomly distributed. We demonstrate an ...

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

authors： Strausbaugh LD,Bourke MT,Sommer MT,Coon ME,Berg CM

更新日期：1990-08-01 00:00:00

abstract：:The saturation values for ribosomal RNA hybridization have been determined for DNA from diploid and polytene tissues of Drosophila melanogaster. These values have been measured in XO and XX larvae which have, respectively, one and two nucleolus organizers in the diploid chromosome set. The results show that (1) in dip...

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

authors： Spear BB,Gall JG

更新日期：1973-05-01 00:00:00

abstract：:Neurogenesis has recently been observed in the adult human brain, suggesting the possibility of endogenous neural repair. However, the augmentation of neurogenesis in the adult human brain in response to neuronal cell loss has not been demonstrated. This study was undertaken to investigate whether neurogenesis occurs ...

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

authors： Curtis MA,Penney EB,Pearson AG,van Roon-Mom WM,Butterworth NJ,Dragunow M,Connor B,Faull RL

更新日期：2003-07-22 00:00:00

abstract：:Suspended aqueous aerosol droplets (<50 µm) are microreactors for many important atmospheric reactions. In droplets and other aquatic environments, pH is arguably the key parameter dictating chemical and biological processes. The nature of the droplet air/water interface has the potential to significantly alter drople...

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

authors： Wei H,Vejerano EP,Leng W,Huang Q,Willner MR,Marr LC,Vikesland PJ

更新日期：2018-07-10 00:00:00

abstract：:The importance of core histones in the regulation of DNA function by chromatin is clear. However, little is known about the role of the linker histone. We investigated the role of H1 in Saccharomyces cerevisiae during extensive transcriptional reprogramming in stationary phase. Although the levels of linker histone Hh...

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

authors： Schäfer G,McEvoy CR,Patterton HG

更新日期：2008-09-30 00:00:00

abstract：:Growing knowledge of the key molecular components involved in biological processes such as endocytosis, exocytosis, and motility has enabled direct testing of proposed mechanistic models by reconstitution. However, current techniques for building increasingly complex cellular structures and functions from purified com...

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

authors： Richmond DL,Schmid EM,Martens S,Stachowiak JC,Liska N,Fletcher DA

更新日期：2011-06-07 00:00:00

abstract：:We resolve the 3D trajectory and the orientation of individual cells for extended times, using a digital tracking technique combined with 3D reconstructions. We have used this technique to study the motility of the uniflagellated bacterium Caulobacter crescentus and have found that each cell displays two distinct mode...

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

authors： Liu B,Gulino M,Morse M,Tang JX,Powers TR,Breuer KS

更新日期：2014-08-05 00:00:00

abstract：:While the general structure of immunoglobulin chains has remained relatively unchanged throughout evolution, the organization of the genes encoding these molecules differs substantially. To understand how the rearranging immunoglobulin system arose, it is necessary to examine living representatives of the most early v...

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

authors： Hohman VS,Schuchman DB,Schluter SF,Marchalonis JJ

更新日期：1993-11-01 00:00:00

abstract：:During transcription, RNA polymerase II (RNAPII) must select the correct nucleotide, catalyze its addition to the growing RNA transcript, and move stepwise along the DNA until a gene is fully transcribed. In all kingdoms of life, transcription must be finely tuned to ensure an appropriate balance between fidelity and ...

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

authors： Larson MH,Zhou J,Kaplan CD,Palangat M,Kornberg RD,Landick R,Block SM

更新日期：2012-04-24 00:00:00

abstract：:Genomic analyses of patients with congenital heart disease (CHD) have identified significant contribution from mutations affecting cilia genes and chromatin remodeling genes; however, the mechanism(s) connecting chromatin remodeling to CHD is unknown. Histone H2B monoubiquitination (H2Bub1) is catalyzed by the RNF20 c...

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

authors： Robson A,Makova SZ,Barish S,Zaidi S,Mehta S,Drozd J,Jin SC,Gelb BD,Seidman CE,Chung WK,Lifton RP,Khokha MK,Brueckner M

更新日期：2019-07-09 00:00:00

abstract：:Acute injury to the intestinal mucosa is a major dose-limiting complication of abdominal radiation therapy. We studied the role of the transcription factor NF-kappaB in protection against radiation-induced apoptosis in the intestinal epithelium in vivo. We use mice in which NF-kappaB signaling through IkappaB-kinase (...

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

authors： Egan LJ,Eckmann L,Greten FR,Chae S,Li ZW,Myhre GM,Robine S,Karin M,Kagnoff MF

更新日期：2004-02-24 00:00:00