Positive and negative selection using the tetA-sacB cassette: recombineering and P1 transduction in Escherichia coli.

abstract：:Two new crescent-shaped unsymmetrical cyanine dyes have been synthesised and their interactions with DNA have been investigated by different spectroscopic methods. These dyes are analogues to a minor groove binding unsymmetrical cyanine dye, BEBO, recently reported by us. In this dye, the structure of the known interc...

journal_title：Nucleic acids research

authors： Karlsson HJ,Eriksson M,Perzon E,Akerman B,Lincoln P,Westman G

更新日期：2003-11-01 00:00:00

abstract：:2'-Deoxyoligonucleotides with 5-fluorocytosine residues incorporated at specific positions of the nucleotide sequence are tools of great potential in the study of the catalytic mechanism by which DNA cytosine methyltransferases methylate the 5-position of DNA cytosine residues in specific sequence contexts. Chemical s...

journal_title：Nucleic acids research

authors： Schmidt S,Pein CD,Fritz HJ,Cech D

更新日期：1992-05-25 00:00:00

abstract：:Furvina®, also denominated G1 (MW 297), is a synthetic nitrovinylfuran [2-bromo-5-(2-bromo-2-nitrovinyl)-furan] antibiotic with a broad antimicrobial spectrum. An ointment (Dermofural®) containing G1 as the only active principle is currently marketed in Cuba and successfully used to treat dermatological infections. He...

journal_title：Nucleic acids research

authors： Fabbretti A,Brandi L,Petrelli D,Pon CL,Castañedo NR,Medina R,Gualerzi CO

更新日期：2012-11-01 00:00:00

abstract：:We have isolated a unique fragment of the HLA-DR alpha gene and probed human genomic DNA at low stringency to search for homologous sequences. A minimum of six non-polymorphic cross-hybridizing high molecular weight fragments were found in all DNAs examined. In order to obtain molecular clones of these cross-hybridizi...

journal_title：Nucleic acids research

authors： Lawrance SK,Das HK,Pan J,Weissman SM

更新日期：1985-10-25 00:00:00

abstract：:Sequence-specific interactions between aminoacyl-tRNA synthetases and their cognate tRNAs ensure both accurate RNA recognition and the efficient catalysis of aminoacylation. The effects of tRNA(Trp)variants on the aminoacylation reaction catalyzed by wild-type Escherichia coli tryptophanyl-tRNA synthe-tase (TrpRS) hav...

journal_title：Nucleic acids research

authors： Ibba M,Sever S,Praetorius-Ibba M,Söll D

更新日期：1999-09-15 00:00:00

abstract：:We present the sequences of five additional human U2 pseudogenes which are very similar to the U2.13 pseudogene reported previously [Van Arsdell et al. (1981) Cell 26, 11-17]. All six U2 pseudogenes preserve the 5' end of the mature U2 snRNA sequence, and all six are flanked by nearly perfect direct repeats that diffe...

journal_title：Nucleic acids research

authors： Van Arsdell SW,Weiner AM

更新日期：1984-02-10 00:00:00

abstract：:The nucleotide sequence of the chick beta-actin gene was determined. The gene contains 5 introns; 4 interrupt the translated region at codons 41/42, 120/122, 267, 327/328 and a large intron occurs in the 5' untranslated region. The gene has a 97 nucleotide 5'-untranslated region and a 594 nucleotide 3'-untranslated re...

journal_title：Nucleic acids research

authors： Kost TA,Theodorakis N,Hughes SH

更新日期：1983-12-10 00:00:00

abstract：:The infection of Pseudomonas aeruginosa by the giant bacteriophage phiKZ is resistant to host RNA polymerase (RNAP) inhibitor rifampicin. phiKZ encodes two sets of polypeptides that are distantly related to fragments of the two largest subunits of cellular multisubunit RNAPs. Polypeptides of one set are encoded by mid...

journal_title：Nucleic acids research

authors： Yakunina M,Artamonova T,Borukhov S,Makarova KS,Severinov K,Minakhin L

更新日期：2015-12-02 00:00:00

abstract：:Enhancers are a class of cis-regulatory elements that can increase gene transcription by forming loops in intergenic regions, introns and exons. Enhancers, as well as their associated target genes, and transcription factors (TFs) that bind to them, are highly associated with human disease and biological processes. Alt...

journal_title：Nucleic acids research

authors： Bai X,Shi S,Ai B,Jiang Y,Liu Y,Han X,Xu M,Pan Q,Wang F,Wang Q,Zhang J,Li X,Feng C,Li Y,Wang Y,Song Y,Feng K,Li C

更新日期：2020-01-08 00:00:00

abstract：:The Bovine Genome Database (BGD; http://BovineGenome.org) strives to improve annotation of the bovine genome and to integrate the genome sequence with other genomics data. BGD includes GBrowse genome browsers, the Apollo Annotation Editor, a quantitative trait loci (QTL) viewer, BLAST databases and gene pages. Genome ...

journal_title：Nucleic acids research

authors： Childers CP,Reese JT,Sundaram JP,Vile DC,Dickens CM,Childs KL,Salih H,Bennett AK,Hagen DE,Adelson DL,Elsik CG

更新日期：2011-01-01 00:00:00

abstract：:Comparison of the nucleotide sequence of mRNAs coding for several vertebrate actins revealed a high degree of sequence homology in the 3' untranslated region (3' UTR) between those mRNAs coding for homologous (isotypic) actins in different organisms but not between mRNAs coding for very similar isoforms differing in t...

journal_title：Nucleic acids research

authors： Yaffe D,Nudel U,Mayer Y,Neuman S

更新日期：1985-05-24 00:00:00

abstract：:According to recent models, as yet poorly studied architectural proteins appear to be required for local regulation of enhancer-promoter interactions, as well as for global chromosome organization. Transcription factors ZIPIC, Pita and Zw5 belong to the class of chromatin insulator proteins and preferentially bind to ...

journal_title：Nucleic acids research

authors： Zolotarev N,Fedotova A,Kyrchanova O,Bonchuk A,Penin AA,Lando AS,Eliseeva IA,Kulakovskiy IV,Maksimenko O,Georgiev P

更新日期：2016-09-06 00:00:00

abstract：:U6 RNA is a member of a class of small abundant stable nuclear RNAs that are essential for splicing. In all species examined so far, the U6 RNA is a RNA polymerase III transcript. The U6 gene of the fission yeast Schizosaccharomyces pombe is unusual in that it is interrupted by an intron whose structure is similar to ...

journal_title：Nucleic acids research

authors： Potashkin J,Frendewey D

更新日期：1989-10-11 00:00:00

abstract：:Sequencing of RNAs (RNA-Seq) has revolutionized the field of transcriptomics, but the reads obtained often contain errors. Read error correction can have a large impact on our ability to accurately assemble transcripts. This is especially true for de novo transcriptome analysis, where a reference genome is not availab...

journal_title：Nucleic acids research

authors： Le HS,Schulz MH,McCauley BM,Hinman VF,Bar-Joseph Z

更新日期：2013-05-01 00:00:00

abstract：:Hidden Markov models (HMMs) and their variants are widely used in Bioinformatics applications that analyze and compare biological sequences. Designing a novel application requires the insight of a human expert to define the model's architecture. The implementation of prediction algorithms and algorithms to train the m...

journal_title：Nucleic acids research

authors： Lam TY,Meyer IM

更新日期：2009-11-01 00:00:00

abstract：:In order to investigate the possible role of RNA secondary structure in determining the efficiency and specificity of mRNA splicing, the structures of sequences at three acceptor splice sites in adenovirus were studied. Transcripts spanning intron-exon junctions were synthesized using SP6 RNA polymerase and analyzed u...

journal_title：Nucleic acids research

authors： Munroe SH

更新日期：1984-11-26 00:00:00

abstract：:ANISEED (www.aniseed.cnrs.fr) is the main model organism database for tunicates, the sister-group of vertebrates. This release gives access to annotated genomes, gene expression patterns, and anatomical descriptions for nine ascidian species. It provides increased integration with external molecular and taxonomy datab...

journal_title：Nucleic acids research

authors： Brozovic M,Dantec C,Dardaillon J,Dauga D,Faure E,Gineste M,Louis A,Naville M,Nitta KR,Piette J,Reeves W,Scornavacca C,Simion P,Vincentelli R,Bellec M,Aicha SB,Fagotto M,Guéroult-Bellone M,Haeussler M,Jacox E,Lowe

更新日期：2018-01-04 00:00:00

abstract：:Hepatitis C virus (HCV) infection is a major cause of human chronic liver disease and hepatocellular carcinoma. G-quadruplex (G4) is an important four-stranded secondary structure of nucleic acids. Recently, we discovered that the core gene of HCV contains a G4 RNA structure; however, the interaction between the HCV c...

journal_title：Nucleic acids research

authors： Bian WX,Xie Y,Wang XN,Xu GH,Fu BS,Li S,Long G,Zhou X,Zhang XL

更新日期：2019-01-10 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：:Nematode.net (http://nematode.net) is a publicly available resource dedicated to the study of parasitic nematodes. In 2000, the Genome Center at Washington University (GC) joined a consortium including the Nematode Genomics group in Edinburgh, and the Pathogen Sequencing Unit of the Sanger Institute to generate expres...

journal_title：Nucleic acids research

authors： Martin J,Abubucker S,Wylie T,Yin Y,Wang Z,Mitreva M

更新日期：2009-01-01 00:00:00

abstract：:The interactions of archetypical nucleic acid ligands with the HIV-1 polypurine tract (PPT) RNA:DNA hybrid, as well as analogous DNA:DNA, RNA:RNA and swapped hybrid substrates, were used to probe structural features of the PPT that contribute to its specific recognition and processing by reverse transcriptase (RT). Re...

journal_title：Nucleic acids research

authors： Turner KB,Brinson RG,Yi-Brunozzi HY,Rausch JW,Miller JT,Le Grice SF,Marino JP,Fabris D

更新日期：2008-05-01 00:00:00

abstract：:The macronuclear genome of Euplotes crassus contains two different genes, EFA1 and EFA2, encoding EF-1alpha proteins. They are derived from micronuclear precursors in the course of a sexual process termed conjugation. We have found that two apparent micronuclear precursors exist for EFA1. They differ in their potentia...

journal_title：Nucleic acids research

authors： Florian V,Klein A

更新日期：1996-08-15 00:00:00

abstract：:To develop structural modifications of dNTPs that are compatible with Taq DNA polymerase activity, we synthesized eight dUTP derivatives conjugated with Cy3 or Cy5 dye analogues that differed in charge and charge distribution throughout the fluorophore. These dUTP derivatives and commercial Cy3- and Cy5-dUTP were stud...

journal_title：Nucleic acids research

authors： Zasedateleva OA,Vasiliskov VA,Surzhikov SA,Kuznetsova VE,Shershov VE,Guseinov TO,Smirnov IP,Yurasov RA,Spitsyn MA,Chudinov AV

更新日期：2018-07-06 00:00:00

abstract：:One surprisingly common element of RNA secondary structure consists of a hairpin capped by a four-base loop (or the tetraloop). Recently the 3-D structures of two RNA-tetraloops have been determined by NMR-studies. Both structures have a similar architecture: the first and the last bases of the loop form a hydrogen bo...

journal_title：Nucleic acids research

authors： Kajava A,Rüterjans H

更新日期：1993-09-25 00:00:00

abstract：:The agents daunomycin, ethidium bromide, distamycin A and cytochrome c inhibit DNA dependent DNA polymerase I (E. coli) reaction competitively to DNA. The influence of these template inactivators on the binding of DNA polymerase to native as well as denatured DNA has been determined by affinity chromatography. Cytochr...

journal_title：Nucleic acids research

authors： Müller WE,Obermeier J,Totsuka A,Zahn RK

更新日期：1974-01-01 00:00:00

abstract：:Magnetic tweezers are a powerful single-molecule technique that allows real-time quantitative investigation of biomolecular processes under applied force. High pulling forces exceeding tens of picoNewtons may be required, e.g. to probe the force range of proteins that actively transcribe or package the genome. Frequen...

journal_title：Nucleic acids research

authors： Janissen R,Berghuis BA,Dulin D,Wink M,van Laar T,Dekker NH

更新日期：2014-10-01 00:00:00

abstract：:Prokaryotic genomic DNA is generally negatively supercoiled in vivo. Many regulatory processes, including the initiation of transcription, are known to depend on the superhelical state of the DNA substrate. The stresses induced within DNA by negative superhelicity can destabilize the DNA duplex at specific sites. Vari...

journal_title：Nucleic acids research

authors： Wang H,Kaloper M,Benham CJ

更新日期：2006-01-01 00:00:00

abstract：:Prior work has indicated that an octanucleotide [5'TATAAGTA(+1)3'] sequence is used as a promoter in yeast mitochondria. Two such sequences (FP1 and FP2) are present upstream of the tRNA(fMet)-RNAse P RNA -tRNA(Pro) gene cluster but only the FP1 promoter but not the FP2 appears to be active in vivo and in vitro. The r...

journal_title：Nucleic acids research

authors： Biswas TK

更新日期：1991-11-11 00:00:00

abstract：:The specific DNA binding ligand netropsin selectively blocks dA-dT base pairs in clusters containing two or more consecutive thymine residues at the dNAase I cleavage sites of DNA. Using CD and UV absorption measurements it is shown, that at various ratios of netropsin to nucleotide concentrations and even at satuatio...

journal_title：Nucleic acids research

authors： Zimmer C,Luck G,Nüske R

更新日期：1980-07-11 00:00:00

abstract：:A requirement for specific RNA folding is that the free-energy landscape discriminate against non-native folds. While tertiary interactions are critical for stabilizing the native fold, they are relatively non-specific, suggesting additional mechanisms contribute to tertiary folding specificity. In this study, we use ...

journal_title：Nucleic acids research

authors： Mustoe AM,Al-Hashimi HM,Brooks CL 3rd

更新日期：2016-01-08 00:00:00