Functional RNA polymerase II promoters in solitary retroviral long terminal repeats (LTR-IS elements).

abstract：:The human Werner syndrome protein, WRN, is a member of the RecQ helicase family and contains 3'-->5' helicase and 3'-->5' exonuclease activities. Recently, we showed that the exonuclease activity of WRN is greatly stimulated by the human Ku heterodimer protein. We have now mapped this interaction physically and functi...

journal_title：Nucleic acids research

authors： Karmakar P,Snowden CM,Ramsden DA,Bohr VA

更新日期：2002-08-15 00:00:00

abstract：:We have investigated the response of the filamentous fungus Aspergillus nidulans to low, non-killing, doses of the alkylating agent MNNG (N-methyl-N'-nitro-N-nitrosoguanidine). Such treatment causes a substantial induction of DNA alkyltransferase activity, with the specific activity in treated cells increasing up to o...

journal_title：Nucleic acids research

authors： Baker SM,Margison GP,Strike P

更新日期：1992-02-25 00:00:00

abstract：:Ten transgenic mouse lines harboring the -346/-103 fragment of the rat insulin I enhancer linked to a heterologous promoter and a reporter gene (Eins-Ptk-CAT construct) were produced. Expression of the hybrid transgene was essentially observed in pancreas and to a lesser extent in brain. These results indicate that th...

journal_title：Nucleic acids research

authors： Dandoy-Dron F,Monthioux E,Jami J,Bucchini D

更新日期：1991-09-25 00:00:00

abstract：:Generally, the presence of a consensus sequence in the promoter of a gene is taken as indication for regulation by the transcription factor that binds to this sequence. In light of the recent developments in genome research, we were interested to what extent this supposition is valid. We examined the relationship betw...

journal_title：Nucleic acids research

authors： Hamoen LW,Smits WK,de Jong A,Holsappel S,Kuipers OP

更新日期：2002-12-15 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：:Regulation of gene transcription in both prokaryotes and eukaryotes involves formation of various DNA-multiprotein complexes of higher order structure through communication between distant regions of DNA. The communication between distant DNA sites occurs by interaction between proteins bound to the sites by looping o...

journal_title：Nucleic acids research

authors： Lyubchenko YL,Shlyakhtenko LS,Aki T,Adhya S

更新日期：1997-02-15 00:00:00

abstract：:Two hexamer DNA fragments containing a carcinogenic modified base, O6-methyl guanine, have been synthesized by a solid-phase phosphotriester method, in which the unmodified guanine residues present were O6 protected with the 4-nitrophenylethyl group. These two alkylated oligonucleotides were found to have similar Tm's...

journal_title：Nucleic acids research

authors： Kuzmich S,Marky LA,Jones RA

更新日期：1983-05-25 00:00:00

abstract：:Synchronized cells of a normal human lymphocytic cell line contain little swiven enzyme activity in G0 and G1 and high activity in Sphase. The level of activity in different growth phase appears to be related to the fraction of the population engaged in DNA replication. No endogenous inhibitor or activator of swiven a...

journal_title：Nucleic acids research

authors： Rosenberg BH,Ungers G,Deutsch JF

更新日期：1976-12-01 00:00:00

abstract：:To examine the influence of thyrotropin (TSH) on the thyroglobulin (Tgb) mRNA content, the latter was evaluated in the cytoplasm of hog thyroid cells cultured in the absence (control cells) or presence of TSH. The Tgb mRNA levels were determined by, (i) kinetics of hybridization to sheep Tgb cDNA, (ii) capacity of cod...

journal_title：Nucleic acids research

authors： Chebath J,Chabaud O,Mauchamp J

更新日期：1979-07-25 00:00:00

abstract：:We have previously characterized an extracellular nuclease from Pseudomonas BAL 31 which, in addition to other activities, displays a double-strand exonuclease activity which progressively shortens both strands of linear duplex DNA molecules from both termini. This degradation is accomplished without the introduction ...

journal_title：Nucleic acids research

authors： Legerski RJ,Hodnett JL,Gray HB Jr

更新日期：1978-05-01 00:00:00

abstract：:The heterogeneous nuclear ribonucleoprotein (hnRNP) A2 is a multi-tasking protein that acts in the cytoplasm and nucleus. We have explored the possibility that this protein is associated with telomeres and participates in their maintenance. Rat brain hnRNP A2 was shown to have two nucleic acid binding sites. In the pr...

journal_title：Nucleic acids research

authors： Moran-Jones K,Wayman L,Kennedy DD,Reddel RR,Sara S,Snee MJ,Smith R

更新日期：2005-01-19 00:00:00

abstract：:Cells continuously monitor protein synthesis to prevent accumulation of aberrant polypeptides. Insufficient capacity of cellular degradative systems, chaperone shortage or high levels of mistranslation by ribosomes can result in proteotoxic stress and endanger proteostasis. One of the least explored reasons for mistra...

journal_title：Nucleic acids research

authors： Ghosh A,Williams LD,Pestov DG,Shcherbik N

更新日期：2020-04-17 00:00:00

abstract：:In this paper, we report investigations, based on circular dichroism, nuclear magnetic resonance spectroscopy and electrophoresis methods, on three oligonucleotide sequences, each containing one 3'-3' and two 5'-5' inversion of polarity sites, and four G-runs with a variable number of residues, namely two, three and f...

journal_title：Nucleic acids research

authors： Virgilio A,Russo A,Amato T,Russo G,Mayol L,Esposito V,Galeone A

更新日期：2017-08-21 00:00:00

abstract：:A new method is described for the direct construction of randomly mutagenized genes by applying the polymerase chain reaction (PCR) to an oligonucleotide synthesized using doped nucleotide reservoirs. We have demonstrated the utility of this method by generating a library of mutant HIV-1 tat genes. Several arbitrarily...

journal_title：Nucleic acids research

authors： Siderovski DP,Matsuyama T,Frigerio E,Chui S,Min X,Erfle H,Sumner-Smith M,Barnett RW,Mak TW

更新日期：1992-10-25 00:00:00

abstract：:Upon infection of Escherichia coli by bacteriophage Qβ, the virus-encoded β-subunit recruits host translation elongation factors EF-Tu and EF-Ts and ribosomal protein S1 to form the Qβ replicase holoenzyme complex, which is responsible for amplifying the Qβ (+)-RNA genome. Here, we use X-ray crystallography, NMR spect...

journal_title：Nucleic acids research

authors： Gytz H,Mohr D,Seweryn P,Yoshimura Y,Kutlubaeva Z,Dolman F,Chelchessa B,Chetverin AB,Mulder FA,Brodersen DE,Knudsen CR

更新日期：2015-12-15 00:00:00

abstract：:A system for the tetracycline-inducible regulation of gene expression in mycobacteria has been developed. We have sub-cloned the tetRO region from the Corynebacterium glutamicum TetZ locus into a mycobacterial shuttle plasmid, making expression of genes cloned downstream of tetRO responsive to tetracycline. Using the ...

journal_title：Nucleic acids research

authors： Blokpoel MC,Murphy HN,O'Toole R,Wiles S,Runn ES,Stewart GR,Young DB,Robertson BD

更新日期：2005-02-01 00:00:00

abstract：:Dlx homeobox genes are first expressed in embryonic retina at E11.5. The Dlx1/Dlx2 null retina has a reduced ganglion cell layer (GCL), with loss of late-born differentiated retinal ganglion cells (RGCs) due to increased apoptosis. TrkB signaling is proposed to regulate the dynamics of RGC apoptosis throughout develop...

journal_title：Nucleic acids research

authors： de Melo J,Zhou QP,Zhang Q,Zhang S,Fonseca M,Wigle JT,Eisenstat DD

更新日期：2008-02-01 00:00:00

abstract：:RNA silencing is an evolutionarily conserved mechanism triggered by double-stranded RNA that is processed into 21- to 24-nt small interfering (si)RNA or micro (mi)RNA by RNaseIII-like enzymes called Dicers. Gene regulations by RNA silencing have fundamental implications in a large number of biological processes that i...

journal_title：Nucleic acids research

authors： Uddin MN,Dunoyer P,Schott G,Akhter S,Shi C,Lucas WJ,Voinnet O,Kim JY

更新日期：2014-07-01 00:00:00

abstract：:The sequences coding for DNA[cytosine-N4]methyltransferases MvaI (from Micrococcus varians RFL19) and Cfr9I (from Citrobacter freundii RFL9) have been determined. The predicted methylases are proteins of 454 and 300 amino acids, respectively. Primary structure comparison of M.Cfr9I and another m4C-forming methylase, M...

journal_title：Nucleic acids research

authors： Klimasauskas S,Timinskas A,Menkevicius S,Butkienè D,Butkus V,Janulaitis A

更新日期：1989-12-11 00:00:00

abstract：:The complete nucleotide sequences of the various precursor 5S RNA species occurring in Bacillus licheniformis have been elucidated. The B. licheniformis precursors contain a 5'-precursor-specific segment of 95 nucleotides which is four times as long as the corresponding segment of the p5S RNAs from the closely related...

journal_title：Nucleic acids research

authors： Stiekema WJ,de Leede-Twente R,Raué HA,Planta RJ

更新日期：1980-10-10 00:00:00

abstract：:We have isolated and characterized a S. pombe promoter using a functional heterologous gene product assay. Random S. pombe genomic fragments were cloned upstream from the promoterless 'lacZ gene and tested in vivo for their efficiency to promote expression of the beta-galactosidase protein in the fission yeast. An eff...

journal_title：Nucleic acids research

authors： Kudla B,Persuy MA,Gaillardin C,Heslot H

更新日期：1988-09-12 00:00:00

abstract：:The use of the DNA duplex as a supramolecular scaffold is an established approach for the assembly of chromophore aggregates. In the absence of detailed structural insight, the characterization of thus assembled oligochromophores is, today, largely based on solution-phase spectroscopy. Here, we describe the crystal st...

journal_title：Nucleic acids research

authors： Probst M,Aeschimann W,Chau TT,Langenegger SM,Stocker A,Häner R

更新日期：2016-09-06 00:00:00

abstract：:We have isolated a pigment cell-specific cDNA clone from a B16 mouse melanoma cDNA library by differential hybridization. The mRNA of isolated cDNA is highly expressed in B16 melanoma cells and in black mouse (C57BL/6) skin, but is not detectable in mouse neuroblastoma cells nor in K1735 mouse amelanotic melanoma cell...

journal_title：Nucleic acids research

authors： Shibahara S,Tomita Y,Sakakura T,Nager C,Chaudhuri B,Müller R

更新日期：1986-03-25 00:00:00

abstract：:RaftProt (http://lipid-raft-database.di.uq.edu.au/) is a database of mammalian lipid raft-associated proteins as reported in high-throughput mass spectrometry studies. Lipid rafts are specialized membrane microdomains enriched in cholesterol and sphingolipids thought to act as dynamic signalling and sorting platforms....

journal_title：Nucleic acids research

authors： Shah A,Chen D,Boda AR,Foster LJ,Davis MJ,Hill MM

更新日期：2015-01-01 00:00:00

abstract：:The majority of genome-wide association study (GWAS) risk variants reside in non-coding DNA sequences. Understanding how these sequence modifications lead to transcriptional alterations and cell-to-cell variability can help unraveling genotype-phenotype relationships. Here, we describe a computational method, dubbed C...

journal_title：Nucleic acids research

authors： Li S,Alvarez RV,Sharan R,Landsman D,Ovcharenko I

更新日期：2017-03-17 00:00:00

abstract：:Protein classification by machine learning algorithms is now widely used in structural and functional annotation of proteins. The Protein Classification Benchmark collection (http://hydra.icgeb.trieste.it/benchmark) was created in order to provide standard datasets on which the performance of machine learning methods ...

journal_title：Nucleic acids research

authors： Sonego P,Pacurar M,Dhir S,Kertész-Farkas A,Kocsor A,Gáspári Z,Leunissen JA,Pongor S

更新日期：2007-01-01 00:00:00

abstract：:Targeted differentiation of human induced pluripotent stem cells (hiPSCs) using only chemicals would have value-added clinical potential in the regeneration of complex cell types including cardiomyocytes. Despite the availability of several chemical inhibitors targeting proteins involved in signaling pathways, no bioa...

journal_title：Nucleic acids research

authors： Taniguchi J,Pandian GN,Hidaka T,Hashiya K,Bando T,Kim KK,Sugiyama H

更新日期：2017-09-19 00:00:00

abstract：:The isolation of sequences flanking integrated transposable elements is an important step in gene tagging strategies. We have demonstrated that sequences flanking transposons integrated into complex genomes can be simply and rapidly obtained using the polymerase chain reaction. Amplification of such sequences was esta...

journal_title：Nucleic acids research

authors： Earp DJ,Lowe B,Baker B

更新日期：1990-06-11 00:00:00

abstract：:The expression pattern and regulatory functions of microRNAs (miRNAs) are intensively investigated in various tissues, cell types and disorders. Differential miRNA expression signatures have been revealed in healthy and unhealthy tissues using high-throughput profiling methods. For further analyses of miRNA signatures...

journal_title：Nucleic acids research

authors： Arefian E,Kiani J,Soleimani M,Shariati SA,Aghaee-Bakhtiari SH,Atashi A,Gheisari Y,Ahmadbeigi N,Banaei-Moghaddam AM,Naderi M,Namvarasl N,Good L,Faridani OR

更新日期：2011-07-01 00:00:00

abstract：:The σ subunit of bacterial RNA polymerase (RNAP) has been implicated in all steps of transcription initiation, including promoter recognition and opening, priming of RNA synthesis, abortive initiation and promoter escape. The post-promoter-recognition σ functions were proposed to depend on its conserved region σ3.2 th...

journal_title：Nucleic acids research

authors： Pupov D,Kuzin I,Bass I,Kulbachinskiy A

更新日期：2014-04-01 00:00:00