On the cooperative and noncooperative binding of ethidium to DNA.

abstract：:During the formation of a transcriptionally active macronucleus, ciliated protozoa excise large numbers of interstitial segments of DNA (internal eliminated sequences; IESs) from their chromosomes. In this study we analyze the published sequences of 20 IESs that interrupt surface protein genes of Paramecium and identi...

journal_title：Nucleic acids research

authors： Klobutcher LA,Herrick G

更新日期：1995-06-11 00:00:00

abstract：:Proper expression of the genes of the human beta-globin gene locus requires the associated locus control region (LCR). Structurally, the LCR is defined by the presence of four domains of erythroid-specific chromatin structure. These domains, which have been characterized as DNase I hypersensitive sites (HSs), comprise...

journal_title：Nucleic acids research

authors： Pomerantz O,Goodwin AJ,Joyce T,Lowrey CH

更新日期：1998-12-15 00:00:00

abstract：:We have examined the interactions of UvrABC endonuclease with DNA containing the monoadducts of 8-methoxypsoralen (8-MOP) and 4,5',8-trimethylpsoralen (TMP). The UvrA and UvrB proteins were found to form a stable complex on DNA that contains the psoralen monoadducts. Subsequent binding of UvrC protein to this complex ...

journal_title：Nucleic acids research

authors： Yeung AT,Jones BK,Capraro M,Chu T

更新日期：1987-06-25 00:00:00

abstract：:DNA methylation plays an important role in many biological processes. Existing epigenome-wide association studies (EWAS) have successfully identified aberrantly methylated genes in many diseases and disorders with most studies focusing on analysing methylation sites one at a time. Incorporating prior biological inform...

journal_title：Nucleic acids research

authors： Ruan P,Shen J,Santella RM,Zhou S,Wang S

更新日期：2016-09-19 00:00:00

abstract：:Metal ions are essential for the folding of RNA into stable tertiary structures and for the catalytic activity of some RNA enzymes. To aid in the study of the roles of metal ions in RNA structural biology, we have created MeRNA (Metals in RNA), a comprehensive compilation of all metal binding sites identified in RNA 3...

journal_title：Nucleic acids research

authors： Stefan LR,Zhang R,Levitan AG,Hendrix DK,Brenner SE,Holbrook SR

更新日期：2006-01-01 00:00:00

abstract：:Double-stranded soybean leghemoglobin DNA was synthesized from leghemoglobin mRNA isolated from soybean nodules. The dsDNA was inserted into the Bam H1 site of plasmid pBR322 using the poly-dAT-joiner method. A cloned DNA fragment of one recombinant plasmid was isolated and characterized by restriction endonuclease di...

journal_title：Nucleic acids research

authors： Truelsen E,Gausing K,Jochimsen B,Jørgensen P,Marcker KA

更新日期：1979-07-11 00:00:00

abstract：:DNA polymerase III (DNA pol III) efficiently replicates the Escherichia coli genome, but it cannot bypass DNA damage. Instead, translesion synthesis (TLS) DNA polymerases are employed to replicate past damaged DNA; however, the exchange of replicative for TLS polymerases is not understood. The umuD gene products, whic...

journal_title：Nucleic acids research

authors： Silva MC,Nevin P,Ronayne EA,Beuning PJ

更新日期：2012-07-01 00:00:00

abstract：:Bacterial Hfq is a protein that plays an important role in the regulation of genes in cooperation with sRNAs. Escherichia coli Hfq (EcHfq) has two or more sites that bind RNA(s) including U-rich and/or the poly(A) tail of mRNA. However, functional and structural information about Bacillus subtilis Hfq (BsHfq) includin...

journal_title：Nucleic acids research

authors： Someya T,Baba S,Fujimoto M,Kawai G,Kumasaka T,Nakamura K

更新日期：2012-02-01 00:00:00

abstract：:Many genetic manipulations are limited by difficulty in obtaining adequate levels of protein expression. Bioinformatic and experimental studies have identified nucleotide sequence features that may increase expression, however it is difficult to assess the relative influence of these features. Zebrafish embryos are ra...

journal_title：Nucleic acids research

authors： Horstick EJ,Jordan DC,Bergeron SA,Tabor KM,Serpe M,Feldman B,Burgess HA

更新日期：2015-04-20 00:00:00

abstract：:LINKER was developed as an online server to assist biomedical researchers to design linker sequences for constructing functional fusion proteins. The program automatically generates a set of peptide sequences that are known to adopt extended conformations as determined by X-ray crystallography and NMR. In addition to ...

journal_title：Nucleic acids research

authors： Xue F,Gu Z,Feng JA

更新日期：2004-07-01 00:00:00

abstract：:In order to study the intragenic profiles of active transcription, we determined the relative levels of active RNA polymerase II present at the 3'- and 5'-ends of 261 yeast genes by run-on. The results obtained indicate that the 3'/5' run-on ratio varies among the genes studied by over 12 log(2) units. This ratio seem...

journal_title：Nucleic acids research

authors： Rodríguez-Gil A,García-Martínez J,Pelechano V,Muñoz-Centeno Mde L,Geli V,Pérez-Ortín JE,Chávez S

更新日期：2010-08-01 00:00:00

abstract：:Double-stranded oligonucleotides (ODNs) containing the consensus binding sequence of a transcription factor provide a rationally designed tool to manipulate gene expression at the transcriptional level by the decoy approach. However, modifications introduced into oligonucleotides to increase stability quite often do n...

journal_title：Nucleic acids research

authors： Crinelli R,Bianchi M,Gentilini L,Palma L,Sørensen MD,Bryld T,Babu RB,Arar K,Wengel J,Magnani M

更新日期：2004-03-29 00:00:00

abstract：:A flow-injection (FI) device is combined, through the use of a low-volume (4 microl) flow cell, with an ultrasensitive surface plasmon resonance (SPR) spectrometer equipped with a bi-cell photodiode detector. The application of this novel FI-SPR device for sequence-specific ultratrace analysis of oligodeoxynucleotides...

journal_title：Nucleic acids research

authors： Song F,Zhou F,Wang J,Tao N,Lin J,Vellanoweth RL,Morquecho Y,Wheeler-Laidman J

更新日期：2002-07-15 00:00:00

abstract：:The NONCODE database is an integrated knowledge database designed for the analysis of non-coding RNAs (ncRNAs). Since NONCODE was first released 3 years ago, the number of known ncRNAs has grown rapidly, and there is growing recognition that ncRNAs play important regulatory roles in most organisms. In the updated vers...

journal_title：Nucleic acids research

authors： He S,Liu C,Skogerbø G,Zhao H,Wang J,Liu T,Bai B,Zhao Y,Chen R

更新日期：2008-01-01 00:00:00

abstract：:The Bacillus cereus genome possesses three type IA topoisomerase genes. These genes, encoding DNA topoisomerase I and IIIalpha (bcTopo I, bcTopo IIIalpha), have been cloned into T7 RNA polymerase-regulated plasmid expression vectors and the enzymes have been overexpressed, purified and characterized. The proteins exhi...

journal_title：Nucleic acids research

authors： Li Z,Hiasa H,DiGate R

更新日期：2005-09-28 00:00:00

abstract：:Mammalian DNA (cytosine-5) methyltransferase 1 (DNMT1) is essential for maintenance methylation. Phosphorylation of Ser143 (pSer143) stabilizes DNMT1 during DNA replication. Here, we show 14-3-3 is a reader protein of DNMT1pSer143. In mammalian cells 14-3-3 colocalizes and binds DNMT1pSer143 post-DNA replication. The ...

journal_title：Nucleic acids research

authors： Estève PO,Zhang G,Ponnaluri VK,Deepti K,Chin HG,Dai N,Sagum C,Black K,Corrêa IR Jr,Bedford MT,Cheng X,Pradhan S

更新日期：2016-02-29 00:00:00

abstract：:Release of RNA polymerase II (Pol II) from promoter-proximal pausing has emerged as a critical step regulating gene expression in multicellular organisms. The transition of Pol II into productive elongation requires the kinase activity of positive transcription elongation factor b (P-TEFb), which is itself under a str...

journal_title：Nucleic acids research

authors： C Quaresma AJ,Bugai A,Barboric M

更新日期：2016-09-19 00:00:00

abstract：:The B-subunits associated with the replicative DNA polymerases are conserved from Archaea to humans, whereas the corresponding catalytic subunits are not related. The latter belong to the B and D DNA polymerase families in eukaryotes and archaea, respectively. Sequence analysis places the B-subunits within the calcine...

journal_title：Nucleic acids research

authors： Jokela M,Eskelinen A,Pospiech H,Rouvinen J,Syväoja JE

更新日期：2004-04-30 00:00:00

abstract：:Identification of common sub-sequences for a group of functionally related DNA sequences can shed light on the role of such elements in cell-specific gene expression. In the megakaryocytic lineage, no one single unique transcription factor was described as linage specific, raising the possibility that a cluster of gen...

journal_title：Nucleic acids research

authors： Hazony Y,Lu J,St Hilaire C,Ravid K

更新日期：2006-01-01 00:00:00

abstract：:The International Committee on Taxonomy of Viruses (ICTV) is charged with the task of developing, refining, and maintaining a universal virus taxonomy. This task encompasses the classification of virus species and higher-level taxa according to the genetic and biological properties of their members; naming virus taxa;...

journal_title：Nucleic acids research

authors： Lefkowitz EJ,Dempsey DM,Hendrickson RC,Orton RJ,Siddell SG,Smith DB

更新日期：2018-01-04 00:00:00

abstract：:Transcription and translation are coupled in bacteria, meaning that translation takes place co-transcriptionally. During transcription-translation, both machineries mutually affect each others' functions, which is important for regulation of gene expression. Analysis of interactions between RNA polymerase (RNAP) and t...

journal_title：Nucleic acids research

authors： Castro-Roa D,Zenkin N

更新日期：2012-03-01 00:00:00

abstract：:The leaf senescence database (LSD) is a comprehensive resource of senescence-associated genes (SAGs) and their corresponding mutants. Through manual curation and extensive annotation, we updated the LSD to a new version LSD 3.0, which contains 5853 genes and 617 mutants from 68 species. To provide sustainable and reli...

journal_title：Nucleic acids research

authors： Li Z,Zhang Y,Zou D,Zhao Y,Wang HL,Zhang Y,Xia X,Luo J,Guo H,Zhang Z

更新日期：2020-01-08 00:00:00

abstract：:The three CD3 genes on human chromosome 11q23 encode proteins (gamma, delta and epsilon) which form part of the antigen receptor on T lymphocytes. All three genes are clustered within 50 kb and are activated approximately contemporaneously during the early stages of T cell ontogeny. In order to pinpoint potential regu...

journal_title：Nucleic acids research

authors： Tunnacliffe A

更新日期：1990-02-11 00:00:00

abstract：:Specific guanine-rich regions in human genome can form higher-order DNA structures called G-quadruplexes, which regulate many relevant biological processes. For instance, the formation of G-quadruplex at telomeres can alter cellular functions, inducing apoptosis. Thus, developing small molecules that are able to bind ...

journal_title：Nucleic acids research

authors： Di Leva FS,Novellino E,Cavalli A,Parrinello M,Limongelli V

更新日期：2014-05-01 00:00:00

abstract：:An adequate supply of nucleotides is essential for DNA replication and DNA repair. Moreover, inhibition of TTP synthesis can cause cell death by a poorly characterized mechanism called thymine-less death. In the yeast Saccharomyces cerevisiae, the genes encoding thymidylate synthetase (CDC21) and thymidylate kinase (C...

journal_title：Nucleic acids research

authors： Toussaint M,Dionne I,Wellinger RJ

更新日期：2005-01-28 00:00:00

abstract：:Recent rapid advances in next generation RNA sequencing (RNA-Seq)-based provide researchers with unprecedentedly large data sets and open new perspectives in transcriptomics. Furthermore, RNA-Seq-based transcript profiling can be applied to non-model and newly discovered organisms because it does not require a predefi...

journal_title：Nucleic acids research

authors： Lohse M,Bolger AM,Nagel A,Fernie AR,Lunn JE,Stitt M,Usadel B

更新日期：2012-07-01 00:00:00

abstract：:Herein, we describe a case study into the population dynamics of in vitro selection, using RNA-cleaving DNAzymes as a model system. We sought to understand how the composition of the population can change over time in response to different levels of selection pressure, and how well these changes are correlated with se...

journal_title：Nucleic acids research

authors： Schlosser K,Lam JC,Li Y

更新日期：2009-06-01 00:00:00

abstract：:The Mouse Genome Database (MGD; http://www.informatics.jax.org) is the primary community model organism database for the laboratory mouse and serves as the source for key biological reference data related to mouse genes, gene functions, phenotypes and disease models with a strong emphasis on the relationship of these ...

journal_title：Nucleic acids research

authors： Bult CJ,Eppig JT,Blake JA,Kadin JA,Richardson JE,Mouse Genome Database Group.

更新日期：2016-01-04 00:00:00

abstract：:Cloned ribosomal DNA (rDNA) of Locusta migratoria was analyzed by restriction site mapping and SI nuclease experiments. The repeat unit is 18 kb long. The nontranscribed spacer region (NTS) is very large (11 kb) and homogeneous in length, but many of the restriction sites are heterogeneous among the repeat units. Two ...

journal_title：Nucleic acids research

authors： Schäfer M,Kunz W

更新日期：1985-02-25 00:00:00

abstract：:RegulonDB is a DataBase that integrates biological knowledge of the mechanisms that regulate the transcription initiation in Escherichia coli , as well as knowledge on the organization of the genes and regulatory signals into operons in the chromosome. The operon is the basic structure used in RegulonDB to describe th...

journal_title：Nucleic acids research

authors： Huerta AM,Salgado H,Thieffry D,Collado-Vides J

更新日期：1998-01-01 00:00:00