Monomolecular G-quadruplex structures with inversion of polarity sites: new topologies and potentiality.

abstract：:It is informative to detect highly conserved positions in proteins and nucleic acid sequence/structure since they are often indicative of structural and/or functional importance. ConSurf (http://consurf.tau.ac.il) and ConSeq (http://conseq.tau.ac.il) are two well-established web servers for calculating the evolutionar...

journal_title：Nucleic acids research

authors： Ashkenazy H,Erez E,Martz E,Pupko T,Ben-Tal N

更新日期：2010-07-01 00:00:00

abstract：:REDUCE is a motif-based regression method for microarray analysis. The only required inputs are (i) a single genome-wide set of absolute or relative mRNA abundances and (ii) the DNA sequence of the regulatory region associated with each gene that is probed. Currently supported organisms are yeast, worm and fly; it is ...

journal_title：Nucleic acids research

authors： Roven C,Bussemaker HJ

更新日期：2003-07-01 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 distribution and amount of 5-methylcytosine (5-MeCyt) in DNA was measured for early embryos of mouse strain CF1 (2 to 4 cell stage to blastocyst) and mouse teratocarcinoma cells. In each case, the pattern of methylation was examined by use of the restriction enzymes Hha I and HPA II HPA II, which cut DNA at the si...

journal_title：Nucleic acids research

authors： Singer J,Roberts-Ems J,Luthardt FW,Riggs AD

更新日期：1979-12-20 00:00:00

abstract：:The Mouse Genome Database (MGD) focuses on the integration of mapping, homology, polymorphism and molecular data about the laboratory mouse. Detailed descriptions of genes including their chromosomal location, gene function, disease associations, mutant phenotypes, molecular polymorphisms and links to representative s...

journal_title：Nucleic acids research

authors： Blake JA,Richardson JE,Davisson MT,Eppig JT

更新日期：1999-01-01 00:00:00

abstract：:The genome-wide identification of microRNA transcription start sites (miRNA TSSs) is essential for understanding how miRNAs are regulated in development and disease. In this study, we developed mirSTP (mirna transcription Start sites Tracking Program), a probabilistic model for identifying active miRNA TSSs from nasce...

journal_title：Nucleic acids research

authors： Liu Q,Wang J,Zhao Y,Li CI,Stengel KR,Acharya P,Johnston G,Hiebert SW,Shyr Y

更新日期：2017-07-27 00:00:00

abstract：:MicroRNAs (miRNAs) are small RNA molecules that regulate gene expression. They are characterized by specific maturation processes defined by canonical and non-canonical biogenic pathways. Analysis of ∼0.5 billion sequences from mouse data sets derived from different tissues, developmental stages and cell types, partly...

journal_title：Nucleic acids research

authors： Castellano L,Stebbing J

更新日期：2013-03-01 00:00:00

abstract：:The mode of action of regulated promoters is largely determined by kinetic parameters which govern the interaction between promoters and proteins involved in induction and repression of transcription. To gain insight into the interplay between positively and negatively acting transcriptional regulators, in this case A...

journal_title：Nucleic acids research

authors： Lutz R,Lozinski T,Ellinger T,Bujard H

更新日期：2001-09-15 00:00:00

abstract：:Three novel DNA-binding proteins with apparent molecular masses of 7, 10 and 30 kDa have been isolated from the hyperthermophilic methanogen Methanopyrus kandleri. The proteins were identified using a blot overlay assay that was modified to emulate the high ionic strength intracellular environment of M.kandleri protei...

journal_title：Nucleic acids research

authors： Pavlov NA,Cherny DI,Nazimov IV,Slesarev AI,Subramaniam V

更新日期：2002-02-01 00:00:00

abstract：:A cross index is presented for using the improved selectivity offered by the Hung and Wensink (Nucl. Acids Res. 12, 1863-1874, 1984) method of partially filling in 5'-extensions produced by type II restriction endonucleases. After this treatment, DNA fragments which normally cannot be ligated to one another, can be jo...

journal_title：Nucleic acids research

authors： Korch C

更新日期：1987-04-24 00:00:00

abstract：:The PRISM web server enables fast and accurate prediction of protein-protein interactions (PPIs). The prediction algorithm is knowledge-based. It combines structural similarity and accounts for evolutionary conservation in the template interfaces. The predicted models are stored in its repository. Given two protein st...

journal_title：Nucleic acids research

authors： Baspinar A,Cukuroglu E,Nussinov R,Keskin O,Gursoy A

更新日期：2014-07-01 00:00:00

abstract：:The archaeal exosome is a phosphorolytic 3'-5' exoribonuclease complex. In a reverse reaction it synthesizes A-rich RNA tails. Its RNA-binding cap comprises the eukaryotic orthologs Rrp4 and Csl4, and an archaea-specific subunit annotated as DnaG. In Sulfolobus solfataricus DnaG and Rrp4 but not Csl4 show preference f...

journal_title：Nucleic acids research

authors： Hou L,Klug G,Evguenieva-Hackenberg E

更新日期：2014-11-10 00:00:00

abstract：:The nucleotide sequence of the Klebsiella pneumoniae ntrA gene has been determined. NtrA encodes a 53,926 Dalton acidic polypeptide; a calculated molecular weight which is significantly lower than that determined by SDS polyacrylamide gel analysis. NtrA is followed by another open-reading frame (orf) of at least 75 am...

journal_title：Nucleic acids research

authors： Merrick MJ,Gibbins JR

更新日期：1985-11-11 00:00:00

abstract：:When the function of origins of replication in yeast was compromised by placing ARS sequences downstream of strong promoters, ARS activity might have been affected either by transcription or by an altered chromatin configuration induced by the construct. To distinguish between these possibilities, derivatives of the y...

journal_title：Nucleic acids research

authors： Tanaka S,Halter D,Livingstone-Zatchej M,Reszel B,Thoma F

更新日期：1994-09-25 00:00:00

abstract：:Differential display of mRNA is a simple, sensitive and powerful method to identify differentially expressed gene fragments. The main drawback of differential display is the lack of reproducibility and the inability to read and compare complex gels. This issue results from employing unoptimized primer combinations and...

journal_title：Nucleic acids research

authors： Malhotra K,Foltz L,Mahoney WC,Schueler PA

更新日期：1998-02-01 00:00:00

abstract：:It is a routine task in metabolic engineering to introduce multicomponent pathways into a heterologous host for production of metabolites. However, this process sometimes may take weeks to months due to the lack of standardized genetic tools. Here, we present a method for the design and construction of biological part...

journal_title：Nucleic acids research

authors： Guo Y,Dong J,Zhou T,Auxillos J,Li T,Zhang W,Wang L,Shen Y,Luo Y,Zheng Y,Lin J,Chen GQ,Wu Q,Cai Y,Dai J

更新日期：2015-07-27 00:00:00

abstract：:DNA tandem repeats (TRs) are ubiquitous genomic features which consist of two or more adjacent copies of an underlying pattern sequence. The copies may be identical or approximate. Variable number of tandem repeats or VNTRs are polymorphic TR loci in which the number of pattern copies is variable. In this paper we des...

journal_title：Nucleic acids research

authors： Gelfand Y,Hernandez Y,Loving J,Benson G

更新日期：2014-08-01 00:00:00

abstract：:A growing number of whole genome sequencing projects, in combination with development of phylogenetic methods for reconstructing gene evolution, have provided us with a window into genomes that existed millions, and even billions, of years ago. Ancestral Genomes (http://ancestralgenomes.org) is a resource for comprehe...

journal_title：Nucleic acids research

authors： Huang X,Albou LP,Mushayahama T,Muruganujan A,Tang H,Thomas PD

更新日期：2019-01-08 00:00:00

abstract：:The thermal denaturation spectra of E. coli 50s and 30s ribosomal sub units and of their isolated RNA's were studied over the wavelength range of 2300-3000 Angstrom. It was possible to fit the experimental denaturation spectra with super positions of the reference spectra for denaturation of A - U and G - C base pairs...

journal_title：Nucleic acids research

authors： Araco A,Belli M,Giorgi C,Onori G

更新日期：1975-03-01 00:00:00

abstract：:Replication Factor C (RF-C) of Saccharomyces cerevisiae is a complex that consists of several different polypeptides ranging from 120- to 37 kDa (Yoder and Burgers, 1991; Fien and Stillman, 1992), similar to human RF-C. We have isolated a gene, RFC2, that appears to be a component of the yeast RF-C. The RFC2 gene is l...

journal_title：Nucleic acids research

authors： Noskov V,Maki S,Kawasaki Y,Leem SH,Ono B,Araki H,Pavlov Y,Sugino A

更新日期：1994-05-11 00:00:00

abstract：:The synthesis of cyclic di-, tri-, tetra-, penta- and hexa-thymidylic acids (16; n = 2, 3, 4, 5 and 6) and the cyclic hexadeoxyribonucleotide [d(CpCpTpApGpGp)], via the "filtration" approach, is reported. Some of the physical properties of the cyclic oligonucleotides are discussed, and their susceptibility to digestio...

journal_title：Nucleic acids research

authors： Rao MV,Reese CB

更新日期：1989-10-25 00:00:00

abstract：:Calf thymus nucleosomes exhibit two different and independent hydrodynamic responses to diminishing salt concentration. One change is gradual over the range 40 to 0.2 mM Na+ and is accompanied by decreases in contact-site cross-linking efficiency. The other change is abrupt, being centered between 1 and 2 mM Na+. We f...

journal_title：Nucleic acids research

authors： Burch JB,Martinson HG

更新日期：1980-11-11 00:00:00

abstract：:Several authors have suggested or inferred that modest changes in microRNA expression can potentiate or impinge on their capacity to mediate gene repression, and that doing so could play a significant role in diseases. Such interpretations are based on several assumptions, namely: (i) changes in microRNA expression co...

journal_title：Nucleic acids research

authors： Mayya VK,Duchaine TF

更新日期：2015-09-03 00:00:00

abstract：:The sigma(54) factor associates with core RNA polymerase (RNAP) to form a holoenzyme that is unable to initiate transcription unless acted on by an activator protein. sigma(54) is closely involved in many steps of activator-dependent transcription, such as core RNAP binding, promoter recognition, activator interaction...

journal_title：Nucleic acids research

authors： Xiao Y,Wigneshweraraj SR,Weinzierl R,Wang YP,Buck M

更新日期：2009-07-01 00:00:00

abstract：:In Saccharomyces cerevisiae, the stability of highly repetitive rDNA array is maintained through transcriptional silencing. Recently, a β-1,3-glucanosyltransferase Gas1 has been shown to play a significant role in the regulation of transcriptional silencing in S. cerevisiae. Here, we show that the gas1Δ mutation incre...

journal_title：Nucleic acids research

authors： Ha CW,Kim K,Chang YJ,Kim B,Huh WK

更新日期：2014-07-01 00:00:00

abstract：:The universal L-shaped tertiary structure of tRNAs is maintained with the help of nucleotide modifications within the D- and T-loops, and these modifications are most extensive within hyperthermophilic species. The obligate-commensal Nanoarchaeum equitans and its phylogenetically-distinct host Ignicoccus hospitalis gr...

journal_title：Nucleic acids research

authors： Rose S,Auxilien S,Havelund JF,Kirpekar F,Huber H,Grosjean H,Douthwaite S

更新日期：2020-07-09 00:00:00

abstract：:Alternative splicing expands the coding capacity of metazoan genes, and it was largely genetic studies in the fruit-fly Drosophila melanogaster that established the principle that regulated alternative splicing results in tissue- and stage-specific protein isoforms with different functions in development. Alternative ...

journal_title：Nucleic acids research

authors： Venables JP,Tazi J,Juge F

更新日期：2012-01-01 00:00:00

abstract：:Crotonaldehyde is a representative alpha,beta-unsaturated aldehyde endowed of mutagenic and carcinogenic properties related to its propensity to react with DNA. Cyclic crotonaldehyde-derived deoxyguanosine (CrA-PdG) adducts can undergo ring opening in duplex DNA to yield a highly reactive aldehydic moiety. Here, we de...

journal_title：Nucleic acids research

authors： Dexheimer TS,Kozekova A,Rizzo CJ,Stone MP,Pommier Y

更新日期：2008-07-01 00:00:00

abstract：:Initiation of Adenovirus (Ad) DNA replication occurs by a protein-priming mechanism in which the viral precursor terminal protein (pTP) and DNA polymerase (pol) as well as two nuclear DNA-binding proteins from uninfected HeLa cells are required. Biochemical studies on the pTP and DNA polymerase proteins separately hav...

journal_title：Nucleic acids research

authors： Stunnenberg HG,Lange H,Philipson L,van Miltenburg RT,van der Vliet PC

更新日期：1988-03-25 00:00:00

abstract：:The European Bioinformatics Institute (EMBL-EBI) supports life-science research throughout the world by providing open data, open-source software and analytical tools, and technical infrastructure (https://www.ebi.ac.uk). We accommodate an increasingly diverse range of data types and integrate them, so that biologists...

journal_title：Nucleic acids research

authors： Cook CE,Bergman MT,Cochrane G,Apweiler R,Birney E

更新日期：2018-01-04 00:00:00