State changes of the HORMA protein ASY1 are mediated by an interplay between its closure motif and PCH2.

abstract：:Transcription factors are important gene regulators with distinctive roles in development, cell signaling and cell cycling, and they have been associated with many diseases. The ConTra v3 web server allows easy visualization and exploration of predicted transcription factor binding sites (TFBSs) in any genomic region ...

journal_title：Nucleic acids research

authors： Kreft L,Soete A,Hulpiau P,Botzki A,Saeys Y,De Bleser P

更新日期：2017-07-03 00:00:00

abstract：:Pseudomonas aeruginosa is an opportunistic pathogen with a relatively large genome, and has been shown to routinely lose genomic fragments during environmental selection. However, the underlying molecular mechanisms that promote chromosomal deletion are still poorly understood. In a recent study, we showed that by del...

journal_title：Nucleic acids research

authors： Shen M,Zhang H,Shen W,Zou Z,Lu S,Li G,He X,Agnello M,Shi W,Hu F,Le S

更新日期：2018-05-18 00:00:00

abstract：:Analyses of secondary structures proposed for ribosomal RNA's show that, of the different kinds of base pairs directly adjoining the ends of postulated double-helical regions, only A-G with A at the 5' end significantly exceeds the number expected for a random base distribution. An A(syn)-G(trans) hydrogen-bonded base...

journal_title：Nucleic acids research

authors： Traub W,Sussman JL

更新日期：1982-04-24 00:00:00

abstract：:The gene encoding the DNA methyltransferase M.CviRI from Chlorella virus XZ-6E was cloned and expressed in Escherichia coli. M.CviRI methylates adenine in TGCA sequences. DNA containing the M.CviRI gene was sequenced and a single open reading frame of 1137 bp was identified which could code for a polypeptide of 379 am...

journal_title：Nucleic acids research

authors： Stefan C,Xia YN,Van Etten JL

更新日期：1991-01-25 00:00:00

abstract：:Within a single infected individual, a virus population can have a high genomic variability. In the case of HIV, several mutations can be present even in a small genomic window of 20-30 nucleotides. For diagnostics purposes, it is often needed to resequence genomic subsets where crucial mutations are known to occur. I...

journal_title：Nucleic acids research

authors： Hadiwikarta WW,Van Dorst B,Hollanders K,Stuyver L,Carlon E,Hooyberghs J

更新日期：2013-10-01 00:00:00

abstract：:Mouse embryo fibroblasts (MEFs) are convenient sources for biochemical studies when cell number in mouse embryos is limiting. To derive the imprinting signature of MEFs and potentially detect novel imprinted genes we performed strand- and allele-specific RNA deep sequencing. We used sequenom allelotyping in embryo and...

journal_title：Nucleic acids research

authors： Tran DA,Bai AY,Singh P,Wu X,Szabó PE

更新日期：2014-02-01 00:00:00

abstract：:Resonances of the water exchangeable iminoprotons of the acceptor and D stem of yeast tRNAPhe have been assigned by means of Nuclear Overhauser Effects (NOE's). Assignments were made for spectra recorded from tRNA dialysed against a buffer with 110 mM sodium and 5 mM magnesium ions and against a buffer with 430 mM sod...

journal_title：Nucleic acids research

authors： Heerschap A,Haasnoot CA,Hilbers CW

更新日期：1982-11-11 00:00:00

abstract：:Endonucleases that generate double-strand breaks in DNA often possess two identical subunits related by rotational symmetry, arranged so that the active sites from each subunit act on opposite DNA strands. In contrast to many endonucleases, Type IIP restriction enzyme BcnI, which recognizes the pseudopalindromic seque...

journal_title：Nucleic acids research

authors： Sasnauskas G,Kostiuk G,Tamulaitis G,Siksnys V

更新日期：2011-11-01 00:00:00

abstract：:The integrases are a diverse family of tyrosine recombinases which rearrange DNA duplexes by means of conservative site-specific recombination reactions. Members of this family, of which the well-studied lambda Int protein is the prototype, were previously found to share four strongly conserved residues, including an ...

journal_title：Nucleic acids research

authors： Esposito D,Scocca JJ

更新日期：1997-09-15 00:00:00

abstract：:Chromatin distribution is not uniform along the human genome. In most genes there is a promoter-associated nucleosome free region (NFR) followed by an array of nucleosomes towards the gene body in which the first (+1) nucleosome is strongly positioned. The function of this characteristic chromatin distribution in tran...

journal_title：Nucleic acids research

authors： Jimeno-González S,Ceballos-Chávez M,Reyes JC

更新日期：2015-03-31 00:00:00

abstract：:We have developed an effective, easy-to-use two-step system for the site-directed insertion of large genetic constructs into arbitrary positions in the Escherichia coli chromosome. The system uses lambda-Red mediated recombineering accompanied by the introduction of double-strand DNA breaks in the chromosome and a don...

journal_title：Nucleic acids research

authors： Kuhlman TE,Cox EC

更新日期：2010-04-01 00:00:00

abstract：:The RNA 3D Structure-to-Multiple Sequence Alignment Server (R3D-2-MSA) is a new web service that seamlessly links RNA three-dimensional (3D) structures to high-quality RNA multiple sequence alignments (MSAs) from diverse biological sources. In this first release, R3D-2-MSA provides manual and programmatic access to cu...

journal_title：Nucleic acids research

authors： Cannone JJ,Sweeney BA,Petrov AI,Gutell RR,Zirbel CL,Leontis N

更新日期：2015-07-01 00:00:00

abstract：:The thermal stabilities of RNA:DNA hybrids are substantially greater than those of DNA:DNA duplexes in aqueous electrolyte solutions containing high concentrations of formamide. Association rates to form DNA:DNA duplexes and DNA:RNA hybrids have been measured in these solvents. There is a temperature range in which DN...

journal_title：Nucleic acids research

authors： Casey J,Davidson N

更新日期：1977-01-01 00:00:00

abstract：:The development of biosensors based on DNA hybridization requires a more precise knowledge of the thermodynamics of the hybridization at a solid interface. In particular, the selectivity of hybridization can be affected by a lot of parameters such as the single-strand (ss)DNA density, the pH, the ionic strength or the...

journal_title：Nucleic acids research

authors： Meunier-Prest R,Raveau S,Finot E,Legay G,Cherkaoui-Malki M,Latruffe N

更新日期：2003-12-01 00:00:00

abstract：:Oligoribonucleotides containing a 5'-phosphorothiolate linkage have provided effective tools to study the mechanisms of RNA catalysis, allowing resolution of kinetic ambiguity associated with mechanistic dissection and providing a strategy to establish linkage between catalysis and specific functional groups. However,...

journal_title：Nucleic acids research

authors： Li NS,Frederiksen JK,Koo SC,Lu J,Wilson TJ,Lilley DM,Piccirilli JA

更新日期：2011-03-01 00:00:00

abstract：:The hexamer (m5 dC-dG)3 has been synthesized and its three-dimensional structure determined by a single crystal X-ray diffraction analysis. The structure has been refined to a final R value of 15.6% at 1.3 A resolution. The molecule forms a left-handed Z-DNA helix which is similar to the unmethylated Z-DNA structure. ...

journal_title：Nucleic acids research

authors： Fujii S,Wang AH,van der Marel G,van Boom JH,Rich A

更新日期：1982-12-11 00:00:00

abstract：:The equilibrium binding of ethidium bromide to native DNAs and to poly(dG-dC) X poly(dG-dC) has been studied by both phase partition and direct spectrophotometric techniques. The binding isotherms obtained from both experimental techniques show that ethidium binds in a cooperative manner to E. coli DNA. On the other h...

journal_title：Nucleic acids research

authors： Winkle SA,Rosenberg LS,Krugh TR

更新日期：1982-12-20 00:00:00

abstract：:A specific segment of mitochondrial DNA from 18 people was examined by two methods of direct DNA sequencing. This segment includes a small noncoding region (V) shown before by restriction analysis to exhibit length polymorphism. All 11 of the human mtDNAs previously reported to have a deletion in this region proved to...

journal_title：Nucleic acids research

authors： Wrischnik LA,Higuchi RG,Stoneking M,Erlich HA,Arnheim N,Wilson AC

更新日期：1987-01-26 00:00:00

abstract：:As an increasing number of reliable protein-protein interactions (PPIs) become available and high-throughput experimental methods provide systematic identification of PPIs, there is a growing need for fast and accurate methods for discovering homologous PPIs of a newly determined PPI. PPISearch is a web server that ra...

journal_title：Nucleic acids research

authors： Chen CC,Lin CY,Lo YS,Yang JM

更新日期：2009-07-01 00:00:00

abstract：:Primer Design Assistant (PDA) is a web interface primer design service combined with thermodynamic theory to evaluate the fitness of primers. It runs in a Linux-Apache-MySQL-PHP structure on a PC equipped with dual CPU (Intel Pentium III 1.4 GHz) and 512 Mb of RAM. A succinct user interface of PDA is accomplished by b...

journal_title：Nucleic acids research

authors： Chen SH,Lin CY,Cho CS,Lo CZ,Hsiung CA

更新日期：2003-07-01 00:00:00

abstract：:To explain the activation of transcription by a remote enhancer, two models are most often considered, namely looping and scanning. A scanning model, also referred to as 'polymerase entry site' model predicts that for two adjacent promoters the one proximal to an enhancer would be preferentially activated. Preferentia...

journal_title：Nucleic acids research

authors： Heuchel R,Matthias P,Schaffner W

更新日期：1989-11-25 00:00:00

abstract：:7SK snRNA, an abundant RNA discovered in human nucleus, regulates transcription by RNA polymerase II (RNAPII). It sequesters and inhibits the transcription elongation factor P-TEFb which, by phosphorylation of RNAPII, switches transcription from initiation to processive elongation and relieves pauses of transcription....

journal_title：Nucleic acids research

authors： Lebars I,Martinez-Zapien D,Durand A,Coutant J,Kieffer B,Dock-Bregeon AC

更新日期：2010-11-01 00:00:00

abstract：:A solution of benzenesulphonic acid (3%, w/v) in a dimethylformamide and dichloromethane mixture (9:1, v/v) is shown to be a very effective reagent for the detritylation of deoxyoligonucleotides attached to a solid support. The levels of depurination with this reagent were lower than those observed with other reagents...

journal_title：Nucleic acids research

authors： Patel TP,Millican TA,Bose CC,Titmas RC,Mock GA,Eaton MA

更新日期：1982-09-25 00:00:00

abstract：:The GenBank(R) sequence database (http://www.ncbi.nlm.nih.gov/) incorporates DNA sequences from all available public sources, primarily through the direct submission of sequence data from individual laboratories and from large-scale sequencing projects. Most submitters use the BankIt (WWW) or Sequin programs to send t...

journal_title：Nucleic acids research

authors： Benson DA,Boguski MS,Lipman DJ,Ostell J,Ouellette BF

更新日期：1998-01-01 00:00:00

abstract：:Rapidly evolving pathogens cause a diverse array of diseases and epidemics that threaten crop yield, food security as well as human, animal and ecosystem health. To combat infection greater comparative knowledge is required on the pathogenic process in multiple species. The Pathogen-Host Interactions database (PHI-bas...

journal_title：Nucleic acids research

authors： Urban M,Pant R,Raghunath A,Irvine AG,Pedro H,Hammond-Kosack KE

更新日期：2015-01-01 00:00:00

abstract：:Base specificity in the interaction of ethidium with double stranded synthetic RNA homopolymers has been studied by means of spectroscopic (UV-visible absorption and fluorescence), microcalorimetric and dilatometric techniques. The results show a strong base specificity in this interaction, the association constant wi...

journal_title：Nucleic acids research

authors： Babayan Y,Manzini G,Xodo LE,Quadrifoglio F

更新日期：1987-07-24 00:00:00

abstract：:A crucial step in analyzing mRNA-Seq data is to accurately and efficiently map hundreds of millions of reads to the reference genome and exon junctions. Here we present OLego, an algorithm specifically designed for de novo mapping of spliced mRNA-Seq reads. OLego adopts a multiple-seed-and-extend scheme, and does not ...

journal_title：Nucleic acids research

authors： Wu J,Anczuków O,Krainer AR,Zhang MQ,Zhang C

更新日期：2013-05-01 00:00:00

abstract：:The positive role of PARP1 in regulation of various nuclear DNA transactions is well established. Although a mitochondrial localization of PARP1 has been suggested, its role in the maintenance of the mitochondrial DNA is currently unknown. Here we investigated the role of PARP1 in the repair of the mitochondrial DNA i...

journal_title：Nucleic acids research

authors： Szczesny B,Brunyanszki A,Olah G,Mitra S,Szabo C

更新日期：2014-12-01 00:00:00

abstract：:A cell-free extract of yeast nuclei that can specifically transcribe cloned yeast 5S rRNA genes has been developed. Optima for transcription of 5S rDNA were determined and conditions of extract preparation leading to reproducible activities and specificities established. The major in vitro product has the same size an...

journal_title：Nucleic acids research

authors： van Keulen H,Thomas DY

更新日期：1982-09-11 00:00:00

abstract：:The activity of MHC class II promoters depends upon conserved regulatory signals one of which, the extended X-box, contains in its X2 subregion a sequence related to the cAMP response element, CRE and to the TPA response element, TRE. Accordingly, X2 is recognized by the AP-1 factor and by other c-Jun or c-Fos contain...

journal_title：Nucleic acids research

authors： Neve Ombra M,Autiero M,DeLerma Barbaro A,Barretta R,Del Pozzo G,Guardiola J

更新日期：1993-04-25 00:00:00