Methylation of DNA in mouse early embryos, teratocarcinoma cells and adult tissues of mouse and rabbit.

abstract：:A method for quantifying the proportion of supercoiled circular (SC) forms in DNA solutions is described. The method (SCFluo) takes advantage of the reversible denaturation property of SC forms and the high specificity of the PicoGreen fluorochrome for double-stranded (ds)DNA. Fluorescence values of forms capable of r...

journal_title：Nucleic acids research

authors： Levy MS,Lotfian P,O'Kennedy R,Lo-Yim MY,Shamlou PA

更新日期：2000-06-15 00:00:00

abstract：:Cortical development is controlled by transcriptional programs, which are orchestrated by transcription factors. Yet, stable inheritance of spatio-temporal activity of factors influencing cell fate and localization in different layers is only partly understood. Here we find that deletion of Dot1l in the murine telence...

journal_title：Nucleic acids research

authors： Franz H,Villarreal A,Heidrich S,Videm P,Kilpert F,Mestres I,Calegari F,Backofen R,Manke T,Vogel T

更新日期：2019-01-10 00:00:00

abstract：:The discovery of hydroxymethyl-, formyl- and carboxylcytosine, generated through oxidation of methylcytosine by TET dioxygenases, raised the question how these modifications contribute to epigenetic regulation. As they are subjected to complex regulation in vivo, we dissected links to gene expression with in vitro mod...

journal_title：Nucleic acids research

authors： Müller U,Bauer C,Siegl M,Rottach A,Leonhardt H

更新日期：2014-07-01 00:00:00

abstract：:Transcription of transfer RNA genes by RNA polymerase III (Pol III) is controlled by general factors, TFIIIB and TFIIIC, and a negative regulator, Maf1. Here we report the interplay between TFIIIC and Maf1 in controlling Pol III activity upon the physiological switch of yeast from fermentation to respiration. TFIIIC d...

journal_title：Nucleic acids research

authors： Ciesla M,Skowronek E,Boguta M

更新日期：2018-10-12 00:00:00

abstract：:Natural transformation is a major mechanism of horizontal gene transfer in bacteria that depends on DNA recombination. RecA is central to the homologous recombination pathway, catalyzing DNA strand invasion and homology search. DprA was shown to be a key binding partner of RecA acting as a specific mediator for its lo...

journal_title：Nucleic acids research

authors： Lisboa J,Andreani J,Sanchez D,Boudes M,Collinet B,Liger D,van Tilbeurgh H,Guérois R,Quevillon-Cheruel S

更新日期：2014-06-01 00:00:00

abstract：:The covalent attachment of thiol-modified DNA oligomers; to self-assembled monolayer silane films on fused silica and oxidized silicon substrates is described. A heterobifunctional crosslinking molecule bearing both thiol- and amino-reactive moieties was used to tether a DNA oligomer (modified at its terminus with a t...

journal_title：Nucleic acids research

authors： Chrisey LA,Lee GU,O'Ferrall CE

更新日期：1996-08-01 00:00:00

abstract：:RegulonDB, first published 20 years ago, is a comprehensive electronic resource about regulation of transcription initiation of Escherichia coli K-12 with decades of knowledge from classic molecular biology experiments, and recently also from high-throughput genomic methodologies. We curated the literature to keep Reg...

journal_title：Nucleic acids research

authors： Santos-Zavaleta A,Salgado H,Gama-Castro S,Sánchez-Pérez M,Gómez-Romero L,Ledezma-Tejeida D,García-Sotelo JS,Alquicira-Hernández K,Muñiz-Rascado LJ,Peña-Loredo P,Ishida-Gutiérrez C,Velázquez-Ramírez DA,Del Moral-Chávez V,Bonavid

更新日期：2019-01-08 00:00:00

abstract：:POGO-DB (http://pogo.ece.drexel.edu/) provides an easy platform for comparative microbial genomics. POGO-DB allows users to compare genomes using pre-computed metrics that were derived from extensive computationally intensive BLAST comparisons of >2000 microbes. These metrics include (i) average protein sequence ident...

journal_title：Nucleic acids research

authors： Lan Y,Morrison JC,Hershberg R,Rosen GL

更新日期：2014-01-01 00:00:00

abstract：:Nucleic acid triplexes may regulate many important biological processes. Persistent accumulation of the oncogenic 7-kb long noncoding RNA MALAT1 is dependent on an unusually long intramolecular triple helix. This triplex structure is positioned within a conserved ENE (element for nuclear expression) motif at the lncRN...

journal_title：Nucleic acids research

authors： Ageeli AA,McGovern-Gooch KR,Kaminska MM,Baird NJ

更新日期：2019-02-20 00:00:00

abstract：:In the battle against viruses, antiviral peptides (AVPs) had demonstrated the immense potential. Presently, more than 15 peptide-based drugs are in various stages of clinical trials. Emerging and re-emerging viruses further emphasize the efforts to accelerate antiviral drug discovery efforts. Despite, huge importance ...

journal_title：Nucleic acids research

authors： Thakur N,Qureshi A,Kumar M

更新日期：2012-07-01 00:00:00

abstract：:Uracil may occur in DNA due to either cytosine deamination or thymine replacing incorporation. Its quantitative characterization is important in assessing DNA damages in cells with perturbed thymidylate metabolism or within different DNA segments involved in immunoglobulin gene diversification. The archaeal DNA polyme...

journal_title：Nucleic acids research

authors： Horváth A,Vértessy BG

更新日期：2010-11-01 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：:Available evidence suggests that Mg2+ ions are involved in reactions catalyzed by hammerhead ribozymes. However, the activity in the presence of exclusively monovalent ions led us to question whether divalent metal ions really function as catalysts when they are present. We investigated ribozyme activity in the presen...

journal_title：Nucleic acids research

authors： Inoue A,Takagi Y,Taira K

更新日期：2004-08-09 00:00:00

abstract：:The principal early promoter of human papillomaviruses (HPVs), designated P97 in the case of HPV-16, contains four characteristically aligned cis-responsive elements, namely one binding site for Sp1, two for the viral E2 proteins, and the TATA box. The Sp1 binding site is needed to mediate activation of P97 by the rem...

journal_title：Nucleic acids research

authors： Tan SH,Gloss B,Bernard HU

更新日期：1992-01-25 00:00:00

abstract：:Synthetic genetic sensors and circuits enable programmable control over timing and conditions of gene expression and, as a result, are increasingly incorporated into the control of complex and multi-gene pathways. Size and complexity of genetic circuits are growing, but stay limited by a shortage of regulatory parts t...

journal_title：Nucleic acids research

authors： Bervoets I,Van Brempt M,Van Nerom K,Van Hove B,Maertens J,De Mey M,Charlier D

更新日期：2018-02-28 00:00:00

abstract：:We have constructed and tested several new vectors for P element-mediated gene transfer. These vectors contain restriction sites for cloning a wide variety of DNA fragments within a small, non-autonomous P element and can be used to efficiently transduce microinjected DNA sequences into the germ line chromosomes of D....

journal_title：Nucleic acids research

authors： Rubin GM,Spradling AC

更新日期：1983-09-24 00:00:00

abstract：:The goal of the present study is to identify genes that respond to iron availability. Suppression subtraction hybridization (SSH) was used to generate cDNA libraries from iron loaded and control human astrocytoma cells (SW1088). The cDNA libraries were screened with antisense cDNA probes obtained from mRNA isolated fr...

journal_title：Nucleic acids research

authors： Ye Z,Connor JR

更新日期：2000-04-15 00:00:00

abstract：:The GeneNet system is designed for collection and analysis of the data on gene and metabolic networks, signal transduction pathways and kinetic characteristics of elementary processes. In the past 2 years, the GeneNet structure was considerably improved: (i) the current version of the database is now implemented using...

journal_title：Nucleic acids research

authors： Ananko EA,Podkolodny NL,Stepanenko IL,Podkolodnaya OA,Rasskazov DA,Miginsky DS,Likhoshvai VA,Ratushny AV,Podkolodnaya NN,Kolchanov NA

更新日期：2005-01-01 00:00:00

abstract：:The cytosine base in DNA undergoes hydrolytic deamination at a considerable rate when UV radiation induces formation of a cyclobutane pyrimidine dimer (CPD) with an adjacent pyrimidine base. We have synthesized a phosphoramidite building block of a cis-syn cyclobutane thymine-uracil dimer (T[]U), which is the deaminat...

journal_title：Nucleic acids research

authors： Takasawa K,Masutani C,Hanaoka F,Iwai S

更新日期：2004-03-12 00:00:00

abstract：:Base excision repair (BER), which is initiated by DNA N-glycosylase proteins, is the frontline for repairing potentially mutagenic DNA base damage. The NTHL1 glycosylase, which excises DNA base damage caused by reactive oxygen species, is thought to be a tumor suppressor. However, in addition to NTHL1 loss-of-function...

journal_title：Nucleic acids research

authors： Limpose KL,Trego KS,Li Z,Leung SW,Sarker AH,Shah JA,Ramalingam SS,Werner EM,Dynan WS,Cooper PK,Corbett AH,Doetsch PW

更新日期：2018-05-18 00:00:00

abstract：:Starting from a crude E. coli extract, two activities which specifically protect highly repetitive bacterial DNA sequences (called PU for Palindromic Unit or REP for Repetitive Extragenic Palindromic sequence) against a digestion with Exonuclease III have been purified. We show that one of these activities is due to t...

journal_title：Nucleic acids research

authors： Gilson E,Perrin D,Hofnung M

更新日期：1990-07-11 00:00:00

abstract：:The current methods for quantifying genome-wide 5-methylcytosine (5mC) oxides are still scarce, mostly restricted with two limitations: assay sensitivity is seriously compromised with cost, assay time and sample input; epigenetic information is irreproducible during polymerase chain reaction (PCR) amplification withou...

journal_title：Nucleic acids research

authors： Chen D,Wang Y,Mo M,Zhang J,Zhang Y,Xu Y,Liu SY,Chen J,Ma Y,Zhang L,Dai Z,Cai C,Zou X

更新日期：2019-11-04 00:00:00

abstract：:A coiled-coil microtubule-bundling protein, p180, was originally identified as one of the ribosome receptor candidates on the rough endoplasmic reticulum (ER) and is highly expressed in secretory tissues. Recently, we reported that p180 plays crucial roles in upregulating collagen biosynthesis, mainly by facilitating ...

journal_title：Nucleic acids research

authors： Ueno T,Kaneko K,Sata T,Hattori S,Ogawa-Goto K

更新日期：2012-04-01 00:00:00

abstract：:Single nucleotide polymorphisms (SNPs) are, together with copy number variation, the primary source of variation in the human genome. SNPs are associated with altered response to drug treatment, susceptibility to disease and other phenotypic variation. Furthermore, during genetic screens for disease-associated mutatio...

journal_title：Nucleic acids research

authors： Reumers J,Conde L,Medina I,Maurer-Stroh S,Van Durme J,Dopazo J,Rousseau F,Schymkowitz J

更新日期：2008-01-01 00:00:00

abstract：:Prior work has indicated that an octanucleotide [5'TATAAGTA(+1)3'] sequence is used as a promoter in yeast mitochondria. Two such sequences (FP1 and FP2) are present upstream of the tRNA(fMet)-RNAse P RNA -tRNA(Pro) gene cluster but only the FP1 promoter but not the FP2 appears to be active in vivo and in vitro. The r...

journal_title：Nucleic acids research

authors： Biswas TK

更新日期：1991-11-11 00:00:00

abstract：:Telomere G-quadruplex is emerging as a promising anti-cancer target due to its inhibition to telomerase, an enzyme expressed in more than 85% tumors. Telomerase-mediated telomere extension and some other reactions require a free 3' telomere end in single-stranded form. G-quadruplex formation near the 3' end of telomer...

journal_title：Nucleic acids research

authors： Wang Q,Liu JQ,Chen Z,Zheng KW,Chen CY,Hao YH,Tan Z

更新日期：2011-08-01 00:00:00

abstract：:The chemical reactivity of matched T and C bases to osmium tetroxide and hydroxylamine near mismatched and unmatched bases in a heteroduplex between two strands of DNA with multiple differences was examined. Data was available for matched bases one or two positions away from 24 mismatches. Reactive bases were found ne...

journal_title：Nucleic acids research

authors： Cotton RG,Campbell RD

更新日期：1989-06-12 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：:Efficient transcription from the human immunodeficiency virus (HIV) promoter depends on binding of the viral regulatory protein Tat to a cis-acting RNA regulatory element, TAR. Tat binds at a trinucleotide bulge located near the apex of the TAR stem-loop structure. An essential feature of Tat-TAR interaction is that t...

journal_title：Nucleic acids research

authors： Aboul-ela F,Karn J,Varani G

更新日期：1996-10-15 00:00:00

abstract：:Linked-atom molecular modelling was employed to determine the steric and torsional requirements for intercalation of proflavine into a double-stranded region of DNA compatible with adjacent regions of cohelical A-DNA. The optimum intercalation conformation is characterized by the dihedral angles xi and psi becoming tr...

journal_title：Nucleic acids research

authors： Alden CJ,Arnott S

更新日期：1977-11-01 00:00:00