Determination of the number of superhelical turns by the hyperchromicity of partially denatured covalently-closed DNA molecules.

abstract：:The Moloney murine leukemia virus (MLV) is a prototype gammaretrovirus requiring nuclear disassembly before DNA integration. In the nucleus, integration site selection towards promoter/enhancer elements is mediated by the host factor bromo- and extraterminal domain (BET) proteins (bromodomain (Brd) proteins 2, 3 and 4...

journal_title：Nucleic acids research

authors： Borrenberghs D,Zurnic I,De Wit F,Acke A,Dirix L,Cereseto A,Debyser Z,Hendrix J

更新日期：2019-02-20 00:00:00

abstract：:With the development of High-Throughput Sequencing (HTS) thousands of human genomes have now been sequenced. Whenever different studies analyze the same genome they usually agree on the amount of single-nucleotide polymorphisms, but differ dramatically on the number of insertion and deletion variants (indels). Further...

journal_title：Nucleic acids research

authors： Jiang Y,Turinsky AL,Brudno M

更新日期：2015-09-03 00:00:00

abstract：:Xenopus laevis 5S rRNA isolated from 7S particles or transcribed in vitro is found to adopt two alternative conformations. These two conformers contain different structural elements within the major TF III A binding domain, which, when isolated as RNA fragments, still interact with the transcription factor. Chemical m...

journal_title：Nucleic acids research

authors： Pieler T,Guddat U,Oei SL,Erdmann VA

更新日期：1986-08-11 00:00:00

abstract：:Primase synthesizes decaribonucleotides for priming of lagging and possibly leading strand synthesis at a replication fork. The sites of initiation by purified mouse primase were shown to be highly specific within the SV40 origin of replication. This study further examines the role of the 27-bp inverted repeat in the ...

journal_title：Nucleic acids research

authors： Tseng BY,Prussak CE

更新日期：1989-03-11 00:00:00

abstract：:In this study we describe a novel method to investigate the RNA-RNA interactions between a small RNA and its target that we termed 'RNA walk'. The method is based on UV-induced AMT cross-linking in vivo followed by affinity selection of the hybrid molecules and mapping the intermolecular adducts by RT-PCR or real-time...

journal_title：Nucleic acids research

authors： Lustig Y,Wachtel C,Safro M,Liu L,Michaeli S

更新日期：2010-01-01 00:00:00

abstract：:Peroxisomes are essential organelles of eukaryotic origin, ubiquitously distributed in cells and organisms, playing key roles in lipid and antioxidant metabolism. Loss or malfunction of peroxisomes causes more than 20 fatal inherited conditions. We have created a peroxisomal database (http://www.peroxisomeDB.org) that...

journal_title：Nucleic acids research

authors： Schlüter A,Fourcade S,Domènech-Estévez E,Gabaldón T,Huerta-Cepas J,Berthommier G,Ripp R,Wanders RJ,Poch O,Pujol A

更新日期：2007-01-01 00:00:00

abstract：:Aberrant Notch signaling plays a pivotal role in T-cell acute lymphoblastic leukemia (T-ALL) and chronic lymphocytic leukemia (CLL). Amplitude and duration of the Notch response is controlled by ubiquitin-dependent proteasomal degradation of the Notch1 intracellular domain (NICD1), a hallmark of the leukemogenic proce...

journal_title：Nucleic acids research

authors： Ferrante F,Giaimo BD,Bartkuhn M,Zimmermann T,Close V,Mertens D,Nist A,Stiewe T,Meier-Soelch J,Kracht M,Just S,Klöble P,Oswald F,Borggrefe T

更新日期：2020-04-17 00:00:00

abstract：:Although secondary structure predictions of an individual RNA sequence have been widely used in a number of sequence analyses of RNAs, accuracy is still limited. Recently, we proposed a method (called 'CentroidHomfold'), which includes information about homologous sequences into the prediction of the secondary structu...

journal_title：Nucleic acids research

authors： Hamada M,Yamada K,Sato K,Frith MC,Asai K

更新日期：2011-07-01 00:00:00

abstract：:Metagenomics has been employed to systematically sequence, classify, analyze and manipulate the entire genetic material isolated from environmental samples. Finding genes within metagenomic sequences remains a formidable challenge, and noncoding RNA genes other than those encoding rRNA and tRNA are not well annotated ...

journal_title：Nucleic acids research

authors： Zhu Y,Pulukkunat DK,Li Y

更新日期：2007-01-01 00:00:00

abstract：:Conformations of 8-bromo-2'-[unk]-triisopropylbenzenesulfonyladenosine ([unk]) and its 3'-[unk]-isomer ([unk]) in solution have been determined by the use of intramolecular nuclear Overhauser effects in (1)H NMR spectroscopy. Compound [unk] has been proved to have a conformation in which the adenosine and benzene ring...

journal_title：Nucleic acids research

authors： Ueyama M,Tori K,Ikehara M,Kaneko M

更新日期：1974-06-01 00:00:00

abstract：:We have isolated and characterized DNA probes that detect homologies between the X and Y chromosomes. Clone St25 is derived from the q13-q22 region of the X chromosome and recognizes a 98% homologous sequence on the Y chromosome. Y specific fragments were present in DNAs from 5 Yq-individuals and from 4 out of 7 XX ma...

journal_title：Nucleic acids research

authors： Koenig M,Moisan JP,Heilig R,Mandel JL

更新日期：1985-08-12 00:00:00

abstract：:The TcSNP database (http://snps.tcruzi.org) integrates information on genetic variation (polymorphisms and mutations) for different stocks, strains and isolates of Trypanosoma cruzi, the causative agent of Chagas disease. The database incorporates sequences (genes from the T. cruzi reference genome, mRNAs, ESTs and ge...

journal_title：Nucleic acids research

authors： Ackermann AA,Carmona SJ,Agüero F

更新日期：2009-01-01 00:00:00

abstract：:Alternative splicing of a single pre-mRNA transcript can produce protein isoforms that promote either cell growth or death. Here we show that Ro-31-8220 (Ro), an apoptotic agent that inhibits protein kinase C and activates the c-Jun N terminal kinase, decreased the proportion of the cell growth-promoting Bcl-xL splice...

journal_title：Nucleic acids research

authors： Hai Y,Cao W,Liu G,Hong SP,Elela SA,Klinck R,Chu J,Xie J

更新日期：2008-06-01 00:00:00

abstract：:The effect of amino groups attached at positions 2 and 8 of the hypoxanthine moiety in the structure, reactivity and stability of DNA duplexes and triplexes is studied by means of quantum mechanical calculations, as well as extended molecular dynamics (MD) and thermodynamic integration (MD/TI) simulations. Theoretical...

journal_title：Nucleic acids research

authors： Cubero E,Güimil-García R,Luque FJ,Eritja R,Orozco M

更新日期：2001-06-15 00:00:00

abstract：:Mitochondrial DNA is a sensitive target of chemical carcinogens (Backer and Weinstein (1980) Science 209, 297-299), suggesting that mutations of the mitochondrial genome occur in tumor cells. We examined this point by comparing mitochondrial DNA sequences in four rat tumors with those of normal rat liver. Some novel m...

journal_title：Nucleic acids research

authors： Taira M,Yoshida E,Kobayashi M,Yaginuma K,Koike K

更新日期：1983-03-25 00:00:00

abstract：:DNA repair is required to maintain genome stability in stem cells and early embryos. At critical junctures, oxidative damage to DNA requires the base excision repair (BER) pathway. Since early zebrafish embryos lack the major polymerase in BER, DNA polymerase ß, repair proceeds via replicative polymerases, even though...

journal_title：Nucleic acids research

authors： Pei DS,Yang XJ,Liu W,Guikema JE,Schrader CE,Strauss PR

更新日期：2011-04-01 00:00:00

abstract：:DNA and RNA guanine-quadruplexes (G4s) are stabilized by several cations, in particular by potassium and sodium ions. Generally, potassium stabilizes guanine-quartet assemblies to a larger extent than sodium; in this article we report about a higher-order G4 structure more stable in sodium than in potassium. Repeats o...

journal_title：Nucleic acids research

authors： Saintomé C,Amrane S,Mergny JL,Alberti P

更新日期：2016-04-07 00:00:00

abstract：:Interferon regulatory factors IRF-3 and IRF-7 are transcription factors essential in the activation of interferon-β (IFN-β) gene in response to viral infections. Although, both proteins recognize the same consensus IRF binding site AANNGAAA, they have distinct DNA binding preferences for sites in vivo. The X-ray struc...

journal_title：Nucleic acids research

authors： De Ioannes P,Escalante CR,Aggarwal AK

更新日期：2011-09-01 00:00:00

abstract：:The unwinding of supercoiled phi X174 RFI DNA induced by the tumorigenic (+) and non-tumorigenic (-) enantiomers of trans-7,8-dihydroxy-anti-9,10-epoxy-7,8,9,10-tetrahydrobenzo[a]pyrene (BPDE) has been investigated by agarose slab-gel and ethidium titration tube gel electrophoresis. The differences in adduct conformat...

journal_title：Nucleic acids research

authors： Xu R,Birke S,Carberry SE,Geacintov NE,Swenberg CE,Harvey RG

更新日期：1992-12-11 00:00:00

abstract：:Diethyl pyrocarbonate reacts with the single-stranded loops of cruciform structures with great selectivity. Adenine bases are carbethoxylated, as a result of which the backbone may be cleaved with piperidine, and the level of chemical modification at each base may be determined. We have studied the ColE1 and (A-T)34 c...

journal_title：Nucleic acids research

authors： Furlong JC,Lilley DM

更新日期：1986-05-27 00:00:00

abstract：:DNA3'pp5'G caps synthesized by the 3'-PO4/5'-OH ligase RtcB have a strong impact on enzymatic reactions at DNA 3'-OH ends. Aprataxin, an enzyme that repairs A5'pp5'DNA ends formed during abortive ligation by classic 3'-OH/5'-PO4 ligases, is also a DNA 3' de-capping enzyme, converting DNAppG to DNA3'p and GMP. By takin...

journal_title：Nucleic acids research

authors： Chauleau M,Jacewicz A,Shuman S

更新日期：2015-07-13 00:00:00

abstract：:We investigate the mechanistic nature of the Snf2 family protein HARP, mutations of which are responsible for Schimke immuno-osseous dysplasia. Using a single-molecule magnetic tweezers assay, we construct RPA-stabilized DNA bubbles within torsionally constrained DNA to investigate the annealing action of HARP on a ph...

journal_title：Nucleic acids research

authors： Burnham DR,Nijholt B,De Vlaminck I,Quan J,Yusufzai T,Dekker C

更新日期：2017-05-05 00:00:00

abstract：:Comparative genome hybridization (CGH) to DNA microarrays (array CGH) is a technique capable of detecting deletions and duplications in genomes at high resolution. However, array CGH studies of the human genome noting false negative and false positive results using large insert clones as probes have raised important c...

journal_title：Nucleic acids research

authors： Price TS,Regan R,Mott R,Hedman A,Honey B,Daniels RJ,Smith L,Greenfield A,Tiganescu A,Buckle V,Ventress N,Ayyub H,Salhan A,Pedraza-Diaz S,Broxholme J,Ragoussis J,Higgs DR,Flint J,Knight SJ

更新日期：2005-06-16 00:00:00

abstract：:ATF4 is a pro-oncogenic transcription factor whose translation is activated by eIF2 phosphorylation through delayed re-initiation involving two uORFs in the mRNA leader. However, in yeast, the effect of eIF2 phosphorylation can be mimicked by eIF5 overexpression, which turns eIF5 into translational inhibitor, thereby ...

journal_title：Nucleic acids research

authors： Kozel C,Thompson B,Hustak S,Moore C,Nakashima A,Singh CR,Reid M,Cox C,Papadopoulos E,Luna RE,Anderson A,Tagami H,Hiraishi H,Slone EA,Yoshino KI,Asano M,Gillaspie S,Nietfeld J,Perchellet JP,Rothenburg S,Masai H,W

更新日期：2016-10-14 00:00:00

abstract：:Escherichia coli has long been regarded as a model organism in the study of codon usage bias (CUB). However, most studies in this organism regarding this topic have been computational or, when experimental, restricted to small datasets; particularly poor attention has been given to genes with low CUB. In this work, co...

journal_title：Nucleic acids research

authors： dos Reis M,Wernisch L,Savva R

更新日期：2003-12-01 00:00:00

abstract：:The use of the ammonia deprotection step to introduce (15)N labels at specific exocyclic amino positions of adenine, cytosine, guanine or 2-aminopurine of oligodeoxynucleotides is described. ...

journal_title：Nucleic acids research

authors： Acedo M,Fàbrega C,Aviño A,Goodman M,Fagan P,Wemmer D,Eritja R

更新日期：1994-08-11 00:00:00

abstract：:Immunotoxoin-mediated cell targeting (IMCT) is a technique for conditionally ablating specific cell types based on the cytotoxic activity of a recombinant immunotoxin anti-Tac (Fv)-PE40. To examine the feasibility of this technique for the negative selection in mouse embryonic stem (ES) cells, we investigated the resp...

journal_title：Nucleic acids research

authors： Kobayashi K,Ohye T,Pastan I,Nagatsu T

更新日期：1996-09-15 00:00:00

abstract：:Many enzymes acting on DNA require Mg(2+) ions not only for catalysis but also to bind DNA. Binding studies often employ Ca(2+) as a substitute for Mg(2+), to promote DNA binding whilst disallowing catalysis. The SfiI endonuclease requires divalent metal ions to bind DNA but, in contrast to many systems where Ca(2+) m...

journal_title：Nucleic acids research

authors： Bellamy SR,Kovacheva YS,Zulkipli IH,Halford SE

更新日期：2009-09-01 00:00:00

abstract：:The rol-6 gene is trans-spliced to the 22 nt leader, SL1, 173 nt downstream of the transcription start. We have analyzed splicing in transformants carrying extrachromosomal arrays of rol-6 with mutations in the trans-splice acceptor site. This site is a close match to the consensus, UUUCAG, that is highly conserved in...

journal_title：Nucleic acids research

authors： Conrad R,Liou RF,Blumenthal T

更新日期：1993-02-25 00:00:00

abstract：:Electron microscopic technique was used to examine the structures of SV40 DNA recombination intermediates induced by ultraviolet irradiation as an approach for understanding recombination mechanisms in animal cells. Putative recombination intermediate with the characteristic Holliday junction was observed in both SV40...

journal_title：Nucleic acids research

authors： Hsu MT

更新日期：1991-12-01 00:00:00