Computational detection and suppression of sequence-specific off-target phenotypes from whole genome RNAi screens.

abstract：:Topoisomerases are ubiquitous proteins found in all three domains of life. They change the topology of DNA via transient breaks on either one or two of the DNA strands to allow passage of another single or double DNA strand through the break. Topoisomerases are classified into two types: type I enzymes cleave one DNA ...

journal_title：Nucleic acids research

authors： Baker NM,Rajan R,Mondragón A

更新日期：2009-02-01 00:00:00

abstract：:MetaNetX is a repository of genome-scale metabolic networks (GSMNs) and biochemical pathways from a number of major resources imported into a common namespace of chemical compounds, reactions, cellular compartments--namely MNXref--and proteins. The MetaNetX.org website (http://www.metanetx.org/) provides access to the...

journal_title：Nucleic acids research

authors： Moretti S,Martin O,Van Du Tran T,Bridge A,Morgat A,Pagni M

更新日期：2016-01-04 00:00:00

abstract：:Rotaviruses are a major cause of acute, often fatal, gastroenteritis in infants and young children world-wide. Virions contain an 11 segment double-stranded RNA genome. Little is known about the cis-acting sequences and structural elements of the viral RNAs. Using a database of 1621 full-length sequences of mammalian ...

journal_title：Nucleic acids research

authors： Li W,Manktelow E,von Kirchbach JC,Gog JR,Desselberger U,Lever AM

更新日期：2010-11-01 00:00:00

abstract：:It has been proposed that phage lambda site-specific recombination proceeds via two independent strand exchanges: the first exchange forming a Holliday-structure which is then converted into complete recombinant products by the second strand exchange. If this hypothesis is correct, one should be able to trap the putat...

journal_title：Nucleic acids research

authors： Kitts PA,Nash HA

更新日期：1988-07-25 00:00:00

abstract：:In most eukaryotes, genetic exchange between paired homologs occurs in the context of a tripartite proteinaceous structure called the synaptonemal complex (SC). Genetic analyses have revealed that the genes encoding SC proteins are vital for meiotic chromosome pairing and recombination. However, the number, nature and...

journal_title：Nucleic acids research

authors： Anuradha S,Muniyappa K

更新日期：2004-04-28 00:00:00

abstract：:A gene bank of Staphylococcus aureus strain Cowan I was established using an E. coli HB101/pBR327 host-vector system. Recombinants expressing staphylococcal protein A (SPA) were detected using an IgG-binding assay. A 3.2 Kb DNA fragment directing the synthesis of SPA in E. coli was identified. SPA produced by E. coli ...

journal_title：Nucleic acids research

authors： Duggleby CJ,Jones SA

更新日期：1983-05-25 00:00:00

abstract：:The plastid psbA promoter of tobacco was used with the aim to construct plastid specific marker genes. Upon transfer to the tobacco nuclear genome the plastid promoter fragment appeared to specify a messenger RNA. Placed 5' to the bar or nptII coding sequences the level of expression is sufficient to obtain a selectab...

journal_title：Nucleic acids research

authors： Cornelissen M,Vandewiele M

更新日期：1989-01-11 00:00:00

abstract：:Chromatin assembly factor 1 (CAF-1) is a histone H3-H4 chaperone that deposits newly synthesized histone (H3-H4)2 tetramers during replication-coupled nucleosome assembly. However, how CAF-1 functions in this process is not yet well understood. Here, we report the crystal structure of C terminus of Cac1 (Cac1C), a sub...

journal_title：Nucleic acids research

authors： Zhang K,Gao Y,Li J,Burgess R,Han J,Liang H,Zhang Z,Liu Y

更新日期：2016-06-20 00:00:00

abstract：:Here we examined the role of cellular vitamin C in genotoxicity of carcinogenic chromium(VI) that requires reduction to induce DNA damage. In the presence of ascorbate (Asc), low 0.2-2 microM doses of Cr(VI) caused 10-15 times more chromosomal breakage in primary human bronchial epithelial cells or lung fibroblasts. D...

journal_title：Nucleic acids research

authors： Reynolds M,Stoddard L,Bespalov I,Zhitkovich A

更新日期：2007-01-01 00:00:00

abstract：:Quantitative real-time PCR (qPCR) is the method of choice for specific and sensitive quantification of nucleic acids. However, data validation is still a major issue, partially due to the complex effect of PCR inhibition on the results. If undetected PCR inhibition may severely impair the accuracy and sensitivity of r...

journal_title：Nucleic acids research

authors： Bar T,Kubista M,Tichopad A

更新日期：2012-02-01 00:00:00

abstract：:Given that greater than 90% of the human genome is expressed, it is logical to assume that post-transcriptional regulatory mechanisms must be the primary means of controlling the flow of information from mRNA to protein. This report describes a robust approach that includes in silico, in vitro and in cellulo experimen...

journal_title：Nucleic acids research

authors： Beaudoin JD,Perreault JP

更新日期：2010-11-01 00:00:00

abstract：:We previously constructed a multiribozyme expression vector by combining cis- and trans-acting ribozymes and we showed that several ribozymes, each directed against a different target in the HIV genome and acting independently in a 'shotgun' manner, markedly increased the efficiency of cleavage of HIV RNA in vitro [Oh...

journal_title：Nucleic acids research

authors： Yuyama N,Ohkawa J,Koguma T,Shirai M,Taira K

更新日期：1994-11-25 00:00:00

abstract：:Adaptive Laboratory Evolution (ALE) has emerged as an experimental approach to discover causal mutations that confer desired phenotypic functions. ALE not only represents a controllable experimental approach to systematically discover genotype-phenotype relationships, but also allows for the revelation of the series o...

journal_title：Nucleic acids research

authors： Phaneuf PV,Gosting D,Palsson BO,Feist AM

更新日期：2019-01-08 00:00:00

abstract：:Chloroplast DNA, isolated from a synchronized culture of Chlamydomonas reinhardii, was digested with restriction endonucleases and examined in the electron microscope. Restriction fragments containing displacement loops (D-loop) were photographed and measured to determine the position of replicated sequences in relati...

journal_title：Nucleic acids research

authors： Waddell J,Wang XM,Wu M

更新日期：1984-05-11 00:00:00

abstract：:The abundance and cell cycle dependent expression of the mRNA for human nonhistone protein HMG-17 were studied in synchronized HeLa cells. Slot blot analysis indicates that the HMG-17 mRNA is a very abundant message, significantly more so than histone or actin mRNA. RNA prepared from tissue culture cells contains high...

journal_title：Nucleic acids research

authors： Bustin M,Soares N,Landsman D,Srikantha T,Collins JM

更新日期：1987-04-24 00:00:00

abstract：:We have created a database of comparatively derived group I intron secondary structure diagrams. This collection currently contains a broad sampling of phylogenetically and structurally similar and diverse structures from over 200 publicly available intron sequences. As more group I introns are sequenced and added to ...

journal_title：Nucleic acids research

authors： Damberger SH,Gutell RR

更新日期：1994-09-01 00:00:00

abstract：:The base pairing properties of oligonucleotide duplexes containing 8-aza-7-deaza-2'-deoxyisoguanosine, its 7-bromo or its 7-iodo derivative are described. The nucleosides were synthesized on a convergent route, protected and converted into phosphoramidites. Oligonucleotides were prepared on a solid-phase and were hybr...

journal_title：Nucleic acids research

authors： Seela F,Kröschel R

更新日期：2003-12-15 00:00:00

abstract：:The Restriction-modification system AhdI contains two convergent transcription units, one with genes encoding methyltransferase subunits M and S and another with genes encoding the controller (C) protein and the restriction endonuclease (R). We show that AhdI transcription is controlled by two independent regulatory l...

journal_title：Nucleic acids research

authors： Bogdanova E,Djordjevic M,Papapanagiotou I,Heyduk T,Kneale G,Severinov K

更新日期：2008-03-01 00:00:00

abstract：:The channel proteins belonging to the major intrinsic proteins (MIP) superfamily are diverse and are found in all forms of life. Water-transporting aquaporin and glycerol-specific aquaglyceroporin are the prototype members of the MIP superfamily. MIPs have also been shown to transport other neutral molecules and gases...

journal_title：Nucleic acids research

authors： Gupta AB,Verma RK,Agarwal V,Vajpai M,Bansal V,Sankararamakrishnan R

更新日期：2012-01-01 00:00:00

abstract：:The crystal structure of the RNA/DNA hybrid r(GAAGAGAAGC). d(GCTTCTCTTC) has been solved and refined at 2.5 A resolution. The refinement procedure converged at R = 0.181 for all reflections in the range 20.0-2.5 A. In the crystal, the RNA/DNA hybrid duplex has an A' conformation with all but one of the nucleotide suga...

journal_title：Nucleic acids research

authors： Conn GL,Brown T,Leonard GA

更新日期：1999-01-15 00:00:00

abstract：:Algae are a diverse, polyphyletic group of photosynthetic eukaryotes spanning nearly all eukaryotic lineages of life and collectively responsible for ∼50% of photosynthesis on Earth. Sequenced algal genomes, critical to understanding their complex biology, are growing in number and require efficient tools for analysis...

journal_title：Nucleic acids research

authors： Grigoriev IV,Hayes RD,Calhoun S,Kamel B,Wang A,Ahrendt S,Dusheyko S,Nikitin R,Mondo SJ,Salamov A,Shabalov I,Kuo A

更新日期：2021-01-08 00:00:00

abstract：:By transporting one DNA double helix (T-segment) through a double-strand break in another (G-segment), topoisomerase II reduces fractions of DNA catenanes, knots and supercoils to below equilibrium values. How DNA segments are selected to simplify the equilibrium DNA topology is enigmatic, and the biological relevance...

journal_title：Nucleic acids research

authors： Martínez-García B,Fernández X,Díaz-Ingelmo O,Rodríguez-Campos A,Manichanh C,Roca J

更新日期：2014-02-01 00:00:00

abstract：:Rfam is a comprehensive collection of non-coding RNA (ncRNA) families, represented by multiple sequence alignments and profile stochastic context-free grammars. Rfam aims to facilitate the identification and classification of new members of known sequence families, and distributes annotation of ncRNAs in over 200 comp...

journal_title：Nucleic acids research

authors： Griffiths-Jones S,Moxon S,Marshall M,Khanna A,Eddy SR,Bateman A

更新日期：2005-01-01 00:00:00

abstract：:The far upstream region of herpes simplex virus (HSV) immediate early (IE) gene 3 has previously been shown to increase gene expression in an enhancer-like manner, and to contain sequences which respond to stimulation of transcription by a virion polypeptide, Vmw65. To analyse the specific DNA sequences which mediate ...

journal_title：Nucleic acids research

authors： Bzik DJ,Preston CM

更新日期：1986-01-24 00:00:00

abstract：:The advent of jellyfish green fluorescent protein and its spectral variants, together with promising new fluorescent proteins from other classes of the Cnidarian phylum (coral and anemones), has greatly enhanced and promises to further boost the detection and localization of proteins in cell biology. It has been less ...

journal_title：Nucleic acids research

authors： Pederson T

更新日期：2001-03-01 00:00:00

abstract：:Extreme overloading of HPLC columns with sample can create a condition of binding site saturation causing competition and displacement among solutes during column elution. This has been termed solute-displacement chromatography (SD-HPLC). We present an example of this phenomenon for the preparative fractionation and p...

journal_title：Nucleic acids research

authors： Waterborg JH,Robertson AJ

更新日期：1993-06-25 00:00:00

abstract：:Despite the large number of noncoding RNAs in human genome and their roles in many diseases include cancer, we know very little about them due to lack of structural clues. The centerpiece of the structural clues is the full RNA base-pairing structure of secondary and tertiary contacts that can be precisely obtained on...

journal_title：Nucleic acids research

authors： Zhang Z,Xiong P,Zhang T,Wang J,Zhan J,Zhou Y

更新日期：2020-02-20 00:00:00

abstract：:Recently, a family of transcription factors structurally related to Sp1 has been described; thus, more than one activator may bind to the GC boxes present in a number of viral and cellular promoters. We have compared the transactivation potentials of Sp1, Sp3 and Sp4 proteins on the human immunodeficiency virus type 1...

journal_title：Nucleic acids research

authors： Majello B,De Luca P,Hagen G,Suske G,Lania L

更新日期：1994-11-25 00:00:00

abstract：:Loop length and its composition are important for the structural and functional versatility of quadruplexes. To date studies on the loops have mainly concerned model sequences compared with naturally occurring quadruplex sequences which have diverse loop lengths and compositions. Herein, we have characterized 36 quadr...

journal_title：Nucleic acids research

authors： Kumar N,Maiti S

更新日期：2008-10-01 00:00:00

abstract：:A sequence of 89 nucleotides from rabbit beta-globin mRNA has been determined and is shown to code for residues 107 to 137 of the beta-globin protein. In addition, a sequence heterogeneity has been identified within this 89 nucleotide long sequence which corresponds to a known polymorphic variant of rabbit beta-globin...

journal_title：Nucleic acids research

authors： Proudfoot NJ

更新日期：1976-07-01 00:00:00