Conformation of the 3'-end of beet necrotic yellow vein benevirus RNA 3 analysed by chemical and enzymatic probing and mutagenesis.

abstract：:Primers4clades is an easy-to-use web server that implements a fully automatic PCR primer design pipeline for cross-species amplification of novel sequences from metagenomic DNA, or from uncharacterized organisms, belonging to user-specified phylogenetic clades or taxa. The server takes a set of non-aligned protein cod...

journal_title：Nucleic acids research

authors： Contreras-Moreira B,Sachman-Ruiz B,Figueroa-Palacios I,Vinuesa P

更新日期：2009-07-01 00:00:00

abstract：:Rad51 protein promotes homologous recombination in eukaryotes. Recombination activities are activated by Rad51 filament assembly on ssDNA. Previous studies of yeast Rad51 showed that His352 occupies an important position at the filament interface, where it could relay signals between subunits and active sites. To inve...

journal_title：Nucleic acids research

authors： Chen J,Villanueva N,Rould MA,Morrical SW

更新日期：2010-08-01 00:00:00

abstract：:SPRING (http://algorithm.cs.nthu.edu.tw/tools/SPRING/) is a tool for the analysis of genome rearrangement between two chromosomal genomes using reversals and/or block-interchanges. SPRING takes two or more chromosomes as its input and then computes a minimum series of reversals and/or block-interchanges between any tw...

journal_title：Nucleic acids research

authors： Lin YC,Lu CL,Liu YC,Tang CY

更新日期：2006-07-01 00:00:00

abstract：:Treatment of the ciliated protozoan Tetrahymena thermophila with 8-methoxypsoralen combined with long wavelength ultraviolet irradiation (UVA, lambda approximately 360 nm) resulted in a dose dependent equal inhibition of the synthesis of rRNA, 5.8S, 5S and tRNA. Similar results were obtained with 3-carbethoxy-8-methox...

journal_title：Nucleic acids research

authors： Nielsen PE

更新日期：1987-02-11 00:00:00

abstract：:Escherichia coli cells lacking the ribosomal RNA processing enzyme RNase III do no excise the normal RNA precursors p16a (17S) and p23a from nascent rRNA transcripts. These cells produce, instead, slightly larger p16b and p23b precursors. Digestion of p16b or p23b rRNA with RNases A plus T1 yields double-stranded frag...

journal_title：Nucleic acids research

authors： Gegenheimer P,Apirion D

更新日期：1980-04-25 00:00:00

abstract：:The Est3 subunit of yeast telomerase, which adopts a predicted OB-fold, is essential for telomere replication. To assess the possible contributions that Est3 might make to enzyme catalysis, we compared telomerase activity from wild type and est3-Delta strains of Saccharomyces castellii, which revealed that loss of the...

journal_title：Nucleic acids research

authors： Lee J,Mandell EK,Rao T,Wuttke DS,Lundblad V

更新日期：2010-04-01 00:00:00

abstract：:The cells of the bronchial epithelium of man are targets for benzo(a)pyrene carcinogenesis. When cultures of these cells, and of non-target fibroblasts, are exposed to [3H]-benzo(a)pyrene, we find that the epithelial cells metabolise and bind to DNA far greater amounts of benzpyrene than do fibroblasts. By analysis of...

journal_title：Nucleic acids research

authors： Arrand JE,Murray AM

更新日期：1982-03-11 00:00:00

abstract：:DNA synthesis of broad host-range plasmid R1162 is initiated from two positions, flanking a large (40 bp stem, 40 bp loop) inverted repeat. Each start-point is located within a highly conserved, but oppositely oriented, 10 base-pair sequence. Synthesis from the two positions converges within the intervening inverted r...

journal_title：Nucleic acids research

authors： Lin LS,Meyer RJ

更新日期：1987-10-26 00:00:00

abstract：:T-region transfer from wild-type Agrobacterium strains is thought to be an orientated process, starting at the right border repeat and terminating at the left border repeat of the T-region. Here we demonstrate that a right border repeat in the inverted orientation relative to the onc-genes can also mediate transfer of...

journal_title：Nucleic acids research

authors： van Haaren MJ,Sedee NJ,de Boer HA,Schilperoort RA,Hooykaas PJ

更新日期：1988-11-11 00:00:00

abstract：:A novel method of determining the number of superhelical turns of a covalently-closed plasmid DNA is described. It relies on the determination of the hyperchromicity, and hence the proportion of unstacked basepairs, of a partially heat-denatured sample which co-migrates during electrophoresis with nicked circular dupl...

journal_title：Nucleic acids research

authors： Dougherty G,Koller T

更新日期：1982-01-22 00:00:00

abstract：:APOBEC3G (A3G), a host protein that inhibits HIV-1 reverse transcription and replication in the absence of Vif, displays cytidine deaminase and single-stranded (ss) nucleic acid binding activities. HIV-1 nucleocapsid protein (NC) also binds nucleic acids and has a unique property, nucleic acid chaperone activity, whic...

journal_title：Nucleic acids research

authors： Iwatani Y,Chan DS,Wang F,Stewart-Maynard K,Sugiura W,Gronenborn AM,Rouzina I,Williams MC,Musier-Forsyth K,Levin JG

更新日期：2007-01-01 00:00:00

abstract：:A new method which predicts internal exon sequences in human DNA has been developed. The method is based on a splice site prediction algorithm that uses the linear discriminant function to combine information about significant triplet frequencies of various functional parts of splice site regions and preferences of ol...

journal_title：Nucleic acids research

authors： Solovyev VV,Salamov AA,Lawrence CB

更新日期：1994-12-11 00:00:00

abstract：:REBASE is a comprehensive database of information about restriction enzymes and their associated methylases, including their recognition and cleavage sites and their commercial availability. Also included is a listing of homing endonucleases. Information from REBASE is available via monthly electronic mailings as well...

journal_title：Nucleic acids research

authors： Roberts RJ,Macelis D

更新日期：1998-01-01 00:00:00

abstract：:DNase I and MPE.Fe (II) footprinting both employ partial cleavage of ligand-protected DNA restriction fragments and Maxam-Gilbert sequencing gel methods of analysis. One method utilizes the enzyme, DNase I, as the DNA cleaving agent while the other employs the synthetic molecule, methidium-propyl-EDTA (MPE). For actin...

journal_title：Nucleic acids research

authors： Van Dyke MW,Dervan PB

更新日期：1983-08-25 00:00:00

abstract：:The activation of a telomere maintenance mechanism is required for cancer development in humans. While most tumors achieve this by expressing the enzyme telomerase, a fraction (5-15%) employs a recombination-based mechanism termed alternative lengthening of telomeres (ALT). Here we show that loss of the single-strande...

journal_title：Nucleic acids research

authors： Grudic A,Jul-Larsen A,Haring SJ,Wold MS,Lønning PE,Bjerkvig R,Bøe SO

更新日期：2007-01-01 00:00:00

abstract：:We have analyzed the ATPase activity exhibited by the UvrABC DNA repair complex. The UvrA protein is an ATPase whose lack of DNA dependence may be related to the ATP induced monomer-dimer transitions. ATP induced dimerization may be responsible for the enhanced DNA binding activity observed in the presence of ATP. Alt...

journal_title：Nucleic acids research

authors： Oh EY,Claassen L,Thiagalingam S,Mazur S,Grossman L

更新日期：1989-06-12 00:00:00

abstract：:We have compared the properties of the poly(rA).oligo(dT) complex with those of the poly(rU).oligo(dA)n complex. Three main differences were found. First, poly(rA) and oligo(dT)n do not form a complex in concentrations of CsCl exceeding 2 M because the poly(rA) is insoluble in high salt. If the complex is made in low ...

journal_title：Nucleic acids research

authors： Mol JN,Borst P

更新日期：1976-04-01 00:00:00

abstract：:Mobile introns and inteins self-propagate by 'homing', a gene conversion process initiated by site-specific homing endonucleases. The VMA intein, which encodes the PI-SceI endonuclease in Saccharomyces cerevisiae, is present in several different yeast strains. Surprisingly, a wild wine yeast (DH1-1A) contains not only...

journal_title：Nucleic acids research

authors： Gimble FS

更新日期：2001-10-15 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：:A peculiar phenomenon is observed in several adenovirus type 2 or 5 (Ad2 or Ad5) transformed cell lines: the right hand and left hand terminal regions of the viral genome present in the viral DNA insertions of these cell lines are found to be linked together. A large part of the viral DNA insertion present in the Ad5 ...

journal_title：Nucleic acids research

authors： Visser L,Reemst AC,van Mansfeld AD,Rozijn TH

更新日期：1982-04-10 00:00:00

abstract：:The interaction specificity of salmon sperm DNA with 2-hydroxyethanethionlato(2,2',2''-terpyridine)platinum(II),PtTS has been studied. The results of 1H and 13C nuclear magnetic resonance, flow dichroism and circular dichroism studies are found to be consistent with an intercalation mode of binding as has been propose...

journal_title：Nucleic acids research

authors： Gabbay EJ,Adkins MA,Yen S

更新日期：1979-10-25 00:00:00

abstract：:We report here spectroscopic and biochemical data of a novel series of sugar-modified oligodeoxy-nucleotides, the carbocyclic oligothymidylates, c(dT)3-20. In c(dT)n a methylene group has been substituted for the oxygen atom of the deoxyribose ring of the natural thymidylate unit. c(dT)10-20 form helical structures, i...

journal_title：Nucleic acids research

authors： Sági J,Szemzõ A,Szécsi J,Otvös L

更新日期：1990-04-25 00:00:00

abstract：:Synthesis of a small amount of 42S RNA in addition to the VSV specific mRNA species was observed in a coupled transcription-translation system containing ribonucleoprotein particles from L cell infected with vesicular stomatitis virus and nuclease-treated ribosomal extract obtained from uninfected HeLa cells. Analysis...

journal_title：Nucleic acids research

authors： Ghosh K,Ghosh HP

更新日期：1982-10-25 00:00:00

abstract：:It is known that DNA curvature plays a certain role in gene regulation. The distribution of curved DNA in promoter regions is evolutionarily preserved, and it is mainly determined by temperature of habitat. However, very little is known on the distribution of DNA curvature in termination sites. Our main objective was ...

journal_title：Nucleic acids research

authors： Kozobay-Avraham L,Hosid S,Bolshoy A

更新日期：2006-05-05 00:00:00

abstract：:The mammalian target of rapamycin (mTOR) is a critical regulator of cell growth, integrating multiple signalling cues and pathways. Key among the downstream activities of mTOR is the control of the protein synthesis machinery. This is achieved, in part, via the co-ordinated regulation of mRNAs that contain a terminal ...

journal_title：Nucleic acids research

authors： Smith EM,Benbahouche NEH,Morris K,Wilczynska A,Gillen S,Schmidt T,Meijer HA,Jukes-Jones R,Cain K,Jones C,Stoneley M,Waldron JA,Bell C,Fonseca BD,Blagden S,Willis AE,Bushell M

更新日期：2021-01-11 00:00:00

abstract：:In order to direct antisense oligonucleotides to specific tissues or cell types in vivo, we are exploring the possibility to utilize lipoproteins as transport vehicles. A 16-mer oligonucleotide (ODN) was derivatized at the 5' prime through a 32P phosphate spacer with cholesterol, yielding a 32P-labeled amphiphatic cho...

journal_title：Nucleic acids research

authors： de Smidt PC,Le Doan T,de Falco S,van Berkel TJ

更新日期：1991-09-11 00:00:00

abstract：:Mutational analysis of the 5'-untranslated leader sequence (omega) of tobacco mosaic virus (TMV) was carried out to determine those sequences necessary for the translational enhancement associated with omega. Five deletion mutants, a single base substitution, and a 25 base replacement mutant were tested for alteration...

journal_title：Nucleic acids research

authors： Gallie DR,Sleat DE,Watts JW,Turner PC,Wilson TM

更新日期：1988-02-11 00:00:00

abstract：:DIAL (dihedral alignment) is a web server that provides public access to a new dynamic programming algorithm for pairwise 3D structural alignment of RNA. DIAL achieves quadratic time by performing an alignment that accounts for (i) pseudo-dihedral and/or dihedral angle similarity, (ii) nucleotide sequence similarity a...

journal_title：Nucleic acids research

authors： Ferrè F,Ponty Y,Lorenz WA,Clote P

更新日期：2007-07-01 00:00:00

abstract：:UNITE (https://unite.ut.ee/) is a web-based database and sequence management environment for the molecular identification of fungi. It targets the formal fungal barcode-the nuclear ribosomal internal transcribed spacer (ITS) region-and offers all ∼1 000 000 public fungal ITS sequences for reference. These are clustere...

journal_title：Nucleic acids research

authors： Nilsson RH,Larsson KH,Taylor AFS,Bengtsson-Palme J,Jeppesen TS,Schigel D,Kennedy P,Picard K,Glöckner FO,Tedersoo L,Saar I,Kõljalg U,Abarenkov K

更新日期：2019-01-08 00:00:00

abstract：:In 2.5 x 10(-4)M EDTA buffer, the derivative melting curve of calf thymus DNA shows a major band at 47 degrees with a shoulder at about 54 degrees . The fraction of melting area of this shoulder is about 13%. For reconstituted polylysine-calf thymus DNA complexes, in addition to the melting of free DNA regions at abou...

journal_title：Nucleic acids research

authors： Li HJ,Brand B,Rotter A

更新日期：1974-02-01 00:00:00