The DNA cleavage reaction of topoisomerase II: wolf in sheep's clothing.

abstract：:The Gene Expression Atlas (http://www.ebi.ac.uk/gxa) is an added-value database providing information about gene expression in different cell types, organism parts, developmental stages, disease states, sample treatments and other biological/experimental conditions. The content of this database derives from curation, ...

journal_title：Nucleic acids research

authors： Kapushesky M,Emam I,Holloway E,Kurnosov P,Zorin A,Malone J,Rustici G,Williams E,Parkinson H,Brazma A

更新日期：2010-01-01 00:00:00

abstract：:Here, with the aim of obtaining insight into the intriguing selectivity of G-quadruplex (G4) ligands toward cancer compared to normal cells, a genetically controlled system of progressive transformation in human BJ fibroblasts was analyzed. Among the different comparative evaluations, we found a progressive increase o...

journal_title：Nucleic acids research

authors： Salvati E,Rizzo A,Iachettini S,Zizza P,Cingolani C,D'Angelo C,Porru M,Mondello C,Aiello A,Farsetti A,Gilson E,Leonetti C,Biroccio A

更新日期：2015-02-18 00:00:00

abstract：:In most bacteria, two tRNAs decode the four arginine CGN codons. One tRNA harboring a wobble inosine (tRNA(Arg)ICG) reads the CGU, CGC and CGA codons, whereas a second tRNA harboring a wobble cytidine (tRNA(Arg)CCG) reads the remaining CGG codon. The reduced genomes of Mycoplasmas and other Mollicutes lack the gene en...

journal_title：Nucleic acids research

authors： Yokobori S,Kitamura A,Grosjean H,Bessho Y

更新日期：2013-07-01 00:00:00

abstract：:An algorithm is presented which compares two restriction maps, yielding a measure of distance between the maps and relating the maps by an alignment. This new algorithm finds the minimum weighted sum of genetic events required to convert one map into the other, where the genetic events are the appearance/disappearance...

journal_title：Nucleic acids research

authors： Waterman MS,Smith TF,Katcher HL

更新日期：1984-01-11 00:00:00

abstract：:The interactions of HIV-1 reverse transcriptase (HIV-1 RT) with a synthetic 53/19-mer DNA substrate was investigated. For this template-primer HIV-1 RT displayed a Km value of 20 nM. The 53/19-mer competitively inhibited DNA synthesis performed on poly (rC).oligo(dG) with Ki value of 260 nM. This corresponded well to ...

journal_title：Nucleic acids research

authors： Kruhøffer M,Urbanke C,Grosse F

更新日期：1993-08-25 00:00:00

abstract：:A physical map is presented for the 1200 kb genome of Mycoplasma mycoides subsp. mycoides Y, locating 32 cleavage sites for 8 restriction endonucleases. The large restriction fragments involved were separated and sized by pulsed-field agarose gel electrophoresis. Their locations on the map were determined by probing S...

journal_title：Nucleic acids research

authors： Pyle LE,Finch LR

更新日期：1988-07-11 00:00:00

abstract：:Achiral pseudonucleosides bearing an anthraquinone moiety have been incorporated into deoxyoligonucleotides in internal, 3' and 5' positions. The ability of these modified deoxyoligonucleotides to hybridize to complementary RNA and DNA was investigated using Tm measurements. The anthraquinone was shown to enhance bind...

journal_title：Nucleic acids research

authors： Lin KY,Matteucci M

更新日期：1991-06-11 00:00:00

abstract：:The complete nucleotide sequence of the Escherichia coli recB gene which encodes a subunit of the ATP-dependent DNase, Exonuclease V, has been determined. The proposed coding region for the RecB protein is 3543 nucleotides long and would encode a polypeptide of 1180 amino acids with a calculated molecular weight of 13...

journal_title：Nucleic acids research

authors： Finch PW,Storey A,Chapman KE,Brown K,Hickson ID,Emmerson PT

更新日期：1986-11-11 00:00:00

abstract：:Helicobacter pylori is a Gram-negative bacterium that colonizes human stomach and causes gastric inflammation. The species is naturally competent and displays remarkable diversity. The presence of a large number of restriction-modification (R-M) systems in this bacterium creates a barrier against natural transformatio...

journal_title：Nucleic acids research

authors： Dwivedi GR,Sharma E,Rao DN

更新日期：2013-03-01 00:00:00

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：:RNA is emerging as a key regulator of a plethora of biological processes. While its study has remained elusive for decades, the recent advent of high-throughput sequencing technologies provided the unique opportunity to develop novel techniques for the study of RNA structure and post-transcriptional modifications. Non...

journal_title：Nucleic acids research

authors： Incarnato D,Morandi E,Simon LM,Oliviero S

更新日期：2018-09-19 00:00:00

abstract：:Enzymes of intermediary metabolism are often reported to have moonlighting functions as RNA-binding proteins and have regulatory roles beyond their primary activities. Human serine hydroxymethyltransferase (SHMT) is essential for the one-carbon metabolism, which sustains growth and proliferation in normal and tumour c...

journal_title：Nucleic acids research

authors： Guiducci G,Paone A,Tramonti A,Giardina G,Rinaldo S,Bouzidi A,Magnifico MC,Marani M,Menendez JA,Fatica A,Macone A,Armaos A,Tartaglia GG,Contestabile R,Paiardini A,Cutruzzolà F

更新日期：2019-05-07 00:00:00

abstract：:MLL, the trithorax ortholog, is a well-characterized histone 3 lysine 4 methyltransferase that is crucial for proper regulation of the Hox genes during embryonic development. Chromosomal translocations, disrupting the Mll gene, lead to aggressive leukemia with poor prognosis. However, the functions of MLL in cellular ...

journal_title：Nucleic acids research

authors： Ali A,Veeranki SN,Tyagi S

更新日期：2014-07-01 00:00:00

abstract：:Hfq, a bacterial RNA-binding protein, was recently shown to contain the Sm1 motif, a characteristic of Sm and LSm proteins that function in RNA processing events in archaea and eukaryotes. In this report, comparative structural modeling was used to predict a three-dimensional structure of the Hfq core sequence. The pr...

journal_title：Nucleic acids research

authors： Sun X,Zhulin I,Wartell RM

更新日期：2002-09-01 00:00:00

abstract：:Proteins are highly dynamic molecules, whose function is intrinsically linked to their molecular motions. Despite the pivotal role of protein dynamics, their computational simulation cost has led to most structure-based approaches for assessing the impact of mutations on protein structure and function relying upon sta...

journal_title：Nucleic acids research

authors： Rodrigues CH,Pires DE,Ascher DB

更新日期：2018-07-02 00:00:00

abstract：:Human transcription factor IIIC contains a 55 kDa polypeptide which specifically interacts with the Adenovirus 2 VAI gene promoter and which mimics most of the DNA binding properties of the entire factor. The specificity and affinity of this protein:DNA interaction was demonstrated by: (i) Separation of purified fract...

journal_title：Nucleic acids research

authors： Schneider HR,Waldschmidt R,Seifart KH

更新日期：1990-08-25 00:00:00

abstract：:Cell differentiation is a central process in development and in cancer growth and dissemination. OCT4 (POU5F1) and NANOG are essential for cell stemness and pluripotency; yet, the mechanisms that regulate their expression remain largely unknown. Repetitive elements account for almost half of the Human Genome; still, t...

journal_title：Nucleic acids research

authors： Morales-Hernández A,González-Rico FJ,Román AC,Rico-Leo E,Alvarez-Barrientos A,Sánchez L,Macia Á,Heras SR,García-Pérez JL,Merino JM,Fernández-Salguero PM

更新日期：2016-06-02 00:00:00

abstract：:A cDNA library was constructed from the mRNA of the ZR-75 oestrogen responsive human breast cancer cell line and screened for oestrogen regulated mRNA sequences. Of the recombinants isolated, 30 contained cDNA that corresponded to a single mRNA species of 2.1 kb that was induced between 10 and 15 fold by oestradiol tr...

journal_title：Nucleic acids research

authors： Westley BR,May FE

更新日期：1987-05-11 00:00:00

abstract：:We recently reported that the antitumor triazoloacridone, compound C-1305, is a topoisomerase II poison with unusual properties. In this study we characterize the DNA interactions of C-1305 in vitro, in comparison with other topoisomerase II inhibitors. Our results show that C-1305 binds to DNA by intercalation and po...

journal_title：Nucleic acids research

authors： Lemke K,Wojciechowski M,Laine W,Bailly C,Colson P,Baginski M,Larsen AK,Skladanowski A

更新日期：2005-10-27 00:00:00

abstract：:Oligonucleotide-directed mutagenesis was used to introduce an A to C transversion at position 523 in the 16S ribosomal RNA gene of Escherichia coli rrnB operon cloned in plasmid pKK3535. E. coli cells transformed with the mutated plasmid were resistant to streptomycin. The mutated ribosomes isolated from these cells w...

journal_title：Nucleic acids research

authors： Melançon P,Lemieux C,Brakier-Gingras L

更新日期：1988-10-25 00:00:00

abstract：:Telomerase activity, not detectable in somatic cells but frequently activated during carcinogenesis, confers immortality to tumors. Mechanisms governing expression of the catalytic subunit hTERT, the limiting factor for telomerase activity, still remain unclear. We previously proposed a model in which the binding of t...

journal_title：Nucleic acids research

authors： Renaud S,Loukinov D,Alberti L,Vostrov A,Kwon YW,Bosman FT,Lobanenkov V,Benhattar J

更新日期：2011-02-01 00:00:00

abstract：:Recent data showed that p53 stimulates the expression of genes encoding not only pro- but also antioxidant enzymes. It was suggested that antioxidant genes could be induced under physiologic levels of stress while the prooxidant ones respond to higher level of stress. Results presented in this article illustrate an ad...

journal_title：Nucleic acids research

authors： Meiller A,Alvarez S,Drané P,Lallemand C,Blanchard B,Tovey M,May E

更新日期：2007-01-01 00:00:00

abstract：:Recognition of DNA by proteins depends on DNA sequence and structure. Often unanswered is whether the structure of naked DNA persists in a protein-DNA complex, or whether protein binding changes DNA shape. While X-ray structures of protein-DNA complexes are numerous, the structure of naked cognate DNA is seldom availa...

journal_title：Nucleic acids research

authors： Azad RN,Zafiropoulos D,Ober D,Jiang Y,Chiu TP,Sagendorf JM,Rohs R,Tullius TD

更新日期：2018-03-16 00:00:00

abstract：:DrugCentral (http://drugcentral.org) is an open-access online drug compendium. DrugCentral integrates structure, bioactivity, regulatory, pharmacologic actions and indications for active pharmaceutical ingredients approved by FDA and other regulatory agencies. Monitoring of regulatory agencies for new drugs approvals ...

journal_title：Nucleic acids research

authors： Ursu O,Holmes J,Knockel J,Bologa CG,Yang JJ,Mathias SL,Nelson SJ,Oprea TI

更新日期：2017-01-04 00:00:00

abstract：:DNA polymerase mu is a member of the mammalian pol X family and reduces deletion during chromosome break repair by nonhomologous end joining (NHEJ). This biological role is linked to pol mu's ability to promote NHEJ of ends with noncomplementary 3' overhangs, but questions remain regarding how it performs this role. W...

journal_title：Nucleic acids research

authors： Davis BJ,Havener JM,Ramsden DA

更新日期：2008-05-01 00:00:00

abstract：:RNA sequencing (RNA-Seq) is a powerful tool for analyzing the identity of cellular RNAs but is often limited by the amount of material available for analysis. In spite of extensive efforts employing existing protocols, we observed that it was not possible to obtain useful sequencing libraries from nuclear RNA derived ...

journal_title：Nucleic acids research

authors： Chu Y,Wang T,Dodd D,Xie Y,Janowski BA,Corey DR

更新日期：2015-06-23 00:00:00

abstract：:Plant mitochondrial genomes show much more evolutionary plasticity than those of animals. We analysed the first mitochondrial DNA (mtDNA) of a lycophyte, the quillwort Isoetes engelmannii, which is separated from seed plants by more than 350 million years of evolution. The Isoetes mtDNA is particularly rich in recombi...

journal_title：Nucleic acids research

authors： Grewe F,Viehoever P,Weisshaar B,Knoop V

更新日期：2009-08-01 00:00:00

abstract：:Smarcal1 is a SWI/SNF-family protein with an ATPase domain involved in DNA-annealing activities and a binding site for the RPA single-strand-DNA-binding protein. Although the role played by Smarcal1 in the maintenance of replication forks has been established, it remains unknown whether Smarcal1 contributes to genomic...

journal_title：Nucleic acids research

authors： Keka IS,Mohiuddin,Maede Y,Rahman MM,Sakuma T,Honma M,Yamamoto T,Takeda S,Sasanuma H

更新日期：2015-07-27 00:00:00

abstract：:Numerous eukaryotic genes are alternatively spliced. Recently, deep transcriptome sequencing has skyrocketed proportion of alternatively spliced genes; over 95% human multi-exon genes are alternatively spliced. One fundamental question is: are all these alternative splicing (AS) events functional? To look into this is...

journal_title：Nucleic acids research

authors： Wang M,Zhang P,Shu Y,Yuan F,Zhang Y,Zhou Y,Jiang M,Zhu Y,Hu L,Kong X,Zhang Z

更新日期：2014-12-16 00:00:00

abstract：:The recognition of human tRNA(Leu) or tRNA(Ser) by cognate aminoacyl- tRNA synthetases has distinct requirements. Only one base change (A73-->G) in tRNA(Leu) is required to generate an efficient serine acceptor in vitro, whereas several changes in three structural domains (the acceptor stem, DHU loop and long extra ar...

journal_title：Nucleic acids research

authors： Breitschopf K,Gross HJ

更新日期：1996-02-01 00:00:00