Two distinct overstretched DNA states.

abstract：:DNA helicases are motor proteins that catalyze the unwinding of double-stranded DNA into single-stranded DNA using the free energy from ATP hydrolysis. Single molecule approaches enable us to address detailed mechanistic questions about how such enzymes move processively along DNA. Here, an optical method has been dev...

journal_title：Nucleic acids research

authors： Fili N,Mashanov GI,Toseland CP,Batters C,Wallace MI,Yeeles JT,Dillingham MS,Webb MR,Molloy JE

更新日期：2010-07-01 00:00:00

abstract：:Chicken globin double-stranded cDNA was synthesised from anaemic adult reticulocyte alpha- and beta-globin mRNA and ligated into the Hind III site of pBR322 using synthetic Hind III decamers. Transformation of E. coli x1776 resulted in the production of a number of alpha- and beta-cDNA clones. One of the alpha-type cl...

journal_title：Nucleic acids research

authors： Deacon NJ,Shine J,Naora H

更新日期：1980-03-25 00:00:00

abstract：:Bacterial small RNAs (sRNAs) are a heterogeneous group of post-transcriptional regulators that often act at the heart of large networks. Hundreds of sRNAs have been discovered by genome-wide screens and most of these sRNAs exert their functions by base-pairing with target mRNAs. However, studies addressing the molecul...

journal_title：Nucleic acids research

authors： Fröhlich KS,Förstner KU,Gitai Z

更新日期：2018-11-16 00:00:00

abstract：:We describe a novel 3'-OH unblocked reversible terminator with the potential to improve accuracy and read-lengths in next-generation sequencing (NGS) technologies. This terminator is based on 5-hydroxymethyl-2'-deoxyuridine triphosphate (HOMedUTP), a hypermodified nucleotide found naturally in the genomes of numerous ...

journal_title：Nucleic acids research

authors： Litosh VA,Wu W,Stupi BP,Wang J,Morris SE,Hersh MN,Metzker ML

更新日期：2011-03-01 00:00:00

abstract：:We have previously described programs for a variety of types of sequence analysis (1-4). These programs have now been integrated into a single package. They are written in the standard C programming language and run on virtually any computer system with a C compiler, such as the IBM/PC and other computers running unde...

journal_title：Nucleic acids research

authors： Mount DW,Conrad B

更新日期：1986-01-10 00:00:00

abstract：:The essential elements of the sea urchin L. variegatus U1 snRNA promoter were mapped by microinjection of a U1 maxigene into sea urchin zygotes. Two elements are required for expression: a distal sequence element (DSE) located between -318 and -300 and a proximal sequence element (PSE) centered at -55. Removal or alte...

journal_title：Nucleic acids research

authors： Wendelburg BJ,Marzluff WF

更新日期：1992-07-25 00:00:00

abstract：:AvrBs3, the founding member of the Xanthomonas transcription-activator-like effectors (TALEs), is translocated into the plant cell where it localizes to the nucleus and acts as transcription factor. The DNA-binding domain of AvrBs3 consists of 17.5 nearly-identical 34 amino acid-repeats. Each repeat specifies binding ...

journal_title：Nucleic acids research

authors： Schreiber T,Bonas U

更新日期：2014-06-01 00:00:00

abstract：:PASMet (Prediction, Analysis and Simulation of Metabolic networks) is a web-based platform for proposing and verifying mathematical models to understand the dynamics of metabolism. The advantages of PASMet include user-friendliness and accessibility, which enable biologists and biochemists to easily perform mathematic...

journal_title：Nucleic acids research

authors： Sriyudthsak K,Mejia RF,Arita M,Hirai MY

更新日期：2016-07-08 00:00:00

abstract：:In plants, small interfering RNAs (siRNAs) can trigger a silencing signal that may spread within a tissue to adjacent cells or even systemically to other organs. Movement of the signal is initially limited to a few cells, but in some cases the signal can be amplified and travel over larger distances. How far silencing...

journal_title：Nucleic acids research

authors： de Felippes FF,Ott F,Weigel D

更新日期：2011-04-01 00:00:00

abstract：:Mixed-lineage leukemia (MLL) maintains the expression of cellular memory genes during development, while leukemic MLL fusion proteins aberrantly maintain expression of hematopoietic stem cell program genes such as HOXA9 to cause leukemia. However, the molecular mechanism of gene activation is unclear. Here we show tha...

journal_title：Nucleic acids research

authors： Okuda H,Kawaguchi M,Kanai A,Matsui H,Kawamura T,Inaba T,Kitabayashi I,Yokoyama A

更新日期：2014-04-01 00:00:00

abstract：:Infection of Escherichia coli by a bacteriophage T4 regA, gene 44 double mutant leads to about a 7-fold increase in the amount of RNA ligase obtained after infection by wild-type phage. Using cells infected by the double mutant, RNA ligase was purified to homogeneity with a 20% yield. Unlike previous preparations of t...

journal_title：Nucleic acids research

authors： Higgins NP,Geballe AP,Snopek TJ,Sugino A,Cozzarelli NR

更新日期：1977-09-01 00:00:00

abstract：:A fiber optic biosensor was used for the fluorimetric detection of T/AT triple-helical DNA formation. The surfaces of two sets of fused silica optical fibers were functionalized with hexaethylene oxide linkers from which decaadenylic acid oligonucleotides were grown in the 3'to 5'and 5'to 3'direction, respectively, us...

journal_title：Nucleic acids research

authors： Uddin AH,Piunno PA,Hudson RH,Damha MJ,Krull UJ

更新日期：1997-10-15 00:00:00

abstract：:A number of novel phosphate triester derivatives of the anti-cancer nucleoside analogue araC have been prepared by a rapid 2-step procedure, not necessitating prior sugar protection. Spectroscopic and lipophilicity data have been collected on these compounds. An in vitro assay indicated inhibition of thymidine incorpo...

journal_title：Nucleic acids research

authors： Jones BC,McGuigan C,Riley PA

更新日期：1989-09-25 00:00:00

abstract：:The PD-(D/E)XK type II restriction endonuclease ThaI cuts the target sequence CG/CG with blunt ends. Here, we report the 1.3 Å resolution structure of the enzyme in complex with substrate DNA and a sodium or calcium ion taking the place of a catalytic magnesium ion. The structure identifies Glu54, Asp82 and Lys93 as t...

journal_title：Nucleic acids research

authors： Firczuk M,Wojciechowski M,Czapinska H,Bochtler M

更新日期：2011-01-01 00:00:00

abstract：:Lambda-red system-based recombinogenic engineering is a powerful new method to engineer DNA without the need for restriction enzymes or ligases. Here, we report the use of a single selectable marker to enhance the usefulness of this approach. The strategy is to utilize the thymidylate synthase A (thyA) gene, which enc...

journal_title：Nucleic acids research

authors： Wong QN,Ng VC,Lin MC,Kung HF,Chan D,Huang JD

更新日期：2005-03-30 00:00:00

abstract：:Synthesis and antisense activity of oligonucleotides modified with 2'-O-[2-[(N,N-dimethylamino)oxy] ethyl] (2'-O-DMAOE) are described. The 2'-O-DMAOE-modified oligonucleotides showed superior metabolic stability in mice. The phosphorothioate oligonucleotide 'gapmers', with 2'-O-DMAOE- modified nucleoside residues at t...

journal_title：Nucleic acids research

authors： Prakash TP,Johnston JF,Graham MJ,Condon TP,Manoharan M

更新日期：2004-02-03 00:00:00

abstract：:The non-essential MGS1 gene of Saccharomyces cerevisiae is highly conserved in eukaryotes and encodes an enzyme containing both DNA-dependent ATPase and DNA annealing activities. MGS1 appears to function in post-replicational repair processes that contribute to genome stability. In this study, we identified MGS1 as a ...

journal_title：Nucleic acids research

authors： Kim JH,Kang YH,Kang HJ,Kim DH,Ryu GH,Kang MJ,Seo YS

更新日期：2005-10-26 00:00:00

abstract：:ADAR enzymes, adenosine deaminases that act on RNA, form a family of RNA editing enzymes that convert adenosine to inosine within RNA that is completely or largely double-stranded. Site-selective A-->I editing has been detected at specific sites within a few structured pre-mRNAs of metazoans. We have analyzed the edit...

journal_title：Nucleic acids research

authors： Källman AM,Sahlin M,Ohman M

更新日期：2003-08-15 00:00:00

abstract：:A comprehensive listing is made of posttranscriptionally modified nucleosides from RNA reported in the literature through mid-1994. Included are chemical structures, common names, symbols, Chemical Abstracts registry numbers (for ribonucleoside and corresponding base), Chemical Abstracts Index Name, phylogenetic sourc...

journal_title：Nucleic acids research

authors： Limbach PA,Crain PF,McCloskey JA

更新日期：1994-06-25 00:00:00

abstract：:RNA-Seq is gradually becoming the standard tool for transcriptomic expression studies in biological research. Although considerable progress has been recorded in the development of statistical algorithms for the detection of differentially expressed genes using RNA-Seq data, the list of detected genes can differ signi...

journal_title：Nucleic acids research

authors： Moulos P,Hatzis P

更新日期：2015-02-27 00:00:00

abstract：:The Intronerator (http://www.cse.ucsc.edu/ approximately kent/intronerator/ ) is a set of web-based tools for exploring RNA splicing and gene structure in Caenorhabditis elegans. It includes a display of cDNA alignments with the genomic sequence, a catalog of alternatively spliced genes and a database of introns. The ...

journal_title：Nucleic acids research

authors： Kent WJ,Zahler AM

更新日期：2000-01-01 00:00:00

abstract：:The reaction of the tetranucleotide, pA-A(2)-A, with 2'(3')-0-(alpha-methoxyethyl)uridine 5'-diphosphate, Mg(2+) ions, and M. luteus polynucleotide phosphorylase followed by mild acid treatment to remove the blocking groups results in a 49% yield of the desired single addition product, pA-A(3)-U, together with smaller...

journal_title：Nucleic acids research

authors： Sninsky JJ,Bennett GN,Gilham PT

更新日期：1974-12-01 00:00:00

abstract：:We report the use of MonoQ FPLC (Fast Protein Liquid Chromatography) for the rapid purification of a novel Type II restriction endonuclease PmaCI, from Pseudomonas maltophila, which recognises the sequence 5'-CAC decreases GTG-3'. The resulting enzyme is free of other nucleases to a level suitable for its characterisa...

journal_title：Nucleic acids research

authors： Walker JN,Dean PD,Saunders JR

更新日期：1986-02-11 00:00:00

abstract：:A cDNA clone which expresses a protein that cross-reacts immunologically with the human C1 and C2 hnRNP core proteins has been isolated. The clone was selected by a sensitive immunochemical assay employing an avidin-biotin complex for detection, and identified as a clone for the hnRNP C proteins by a highly sensitive ...

journal_title：Nucleic acids research

authors： Lahiri DK,Thomas JO

更新日期：1986-05-27 00:00:00

abstract：:A somatic cell hybrid line containing only human chromosome 21 on a mouse background has been used as the source of DNA for construction of a recombinant phage library. Individual phages containing human inserts have been identified. Repeat-free human DNA subclones have been prepared and used to screen for restriction...

journal_title：Nucleic acids research

authors： Watkins PC,Tanzi RE,Gibbons KT,Tricoli JV,Landes G,Eddy R,Shows TB,Gusella JF

更新日期：1985-09-11 00:00:00

abstract：:Here, we describe the development of WikiPathways (http://www.wikipathways.org), a public wiki for pathway curation, since it was first published in 2008. New features are discussed, as well as developments in the community of contributors. New features include a zoomable pathway viewer, support for pathway ontology a...

journal_title：Nucleic acids research

authors： Kelder T,van Iersel MP,Hanspers K,Kutmon M,Conklin BR,Evelo CT,Pico AR

更新日期：2012-01-01 00:00:00

abstract：:Nucleosomes, a basic structural unit of eukaryotic chromatin, play a significant role in regulating gene expression. We have developed a web tool based on DNA sequences known from empirical and theoretical studies to influence DNA bending and flexibility, and to exclude nucleosomes. NXSensor (available at http://www.s...

journal_title：Nucleic acids research

authors： Luykx P,Bajić IV,Khuri S

更新日期：2006-07-01 00:00:00

abstract：:To achieve drug resistance Leishmania parasite alters gene copy number by using its repeated sequences widely distributed through the genome. Even though homologous recombination (HR) is ascribed to maintain genome stability, this eukaryote exploits this potent mechanism driven by the Rad51 recombinase to form benefic...

journal_title：Nucleic acids research

authors： Genois MM,Plourde M,Éthier C,Roy G,Poirier GG,Ouellette M,Masson JY

更新日期：2015-03-11 00:00:00

abstract：:The solubility of adult beta-globin chromatin (beta A chromatin) from immature chicken red blood cells can be controlled by the presence or absence of n-butyrate in a cell incubation medium. In the absence of n-butyrate, only a small percentage (approximately 4%) of the total beta A chromatin is in a soluble chromatin...

journal_title：Nucleic acids research

authors： Ferenz CR,Nelson DA

更新日期：1985-03-25 00:00:00

abstract：:We have determined the nucleotide sequence at the 3' end of the vesicular stomatitis virus (VSV) polymerase or L gene and compared it to that obtained from a defective interfering particle (DI) RNA generated by this virus. The latter (DI 0.50) contains a large internal deletion within this gene. The deletion begins ex...

journal_title：Nucleic acids research

authors： De BK,Perrault J

更新日期：1982-11-11 00:00:00