Abstract:
:Cloned DNA from the EcoRI J fragment of EBV has been used as template for in vitro transcription experiments using cell-free extracts prepared from HeLa or KB cells. Two EBV specific RNAs each about 175 bases in length were synthesised and nuclease 51 mapping experiments determined that these in vitro products corresponded precisely to the in vivo species obtained from Raji cells. These two RNA molecules are transcribed by RNA polymerase III and in common with other pol III-synthesised RNAs the coding sequences contain intragenic control regions. The relative abundance of the two RNAs synthesised in vitro differs from that observed in vivo.
journal_name
Nucleic Acids Resjournal_title
Nucleic acids researchauthors
Jat P,Arrand JRdoi
10.1093/nar/10.11.3407subject
Has Abstractpub_date
1982-06-11 00:00:00pages
3407-25issue
11eissn
0305-1048issn
1362-4962journal_volume
10pub_type
杂志文章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
pub_type: 杂志文章
doi:10.1093/nar/8.21.4969
更新日期:1980-11-11 00:00:00
abstract::Chromosomes in vertebrates are protected at both ends by telomere DNA composed of tandem (TTAGGG)n repeats. DNA replication produces a blunt-ended leading strand telomere and a lagging strand telomere carrying a single-stranded G-rich overhang at its end. The G-rich strand can form G-quadruplex structure in the presen...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkm203
更新日期:2007-01-01 00:00:00
abstract::The sequence requirements for transcriptional stimulation of the adenovirus major late promoter (MLP) by the products of the early transcription unit Ela and by the replication of viral DNA were analyzed by in vitro transcription. Sequences upstream of +33 are involved in the moderate Ela-responsiveness of the MLP, wh...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/16.9.3771
更新日期:1988-05-11 00:00:00
abstract::Loading of the replicative ring helicase onto the origin of replication (oriC) is the final outcome of a well coordinated series of events that collectively constitute a primosomal cascade. Once the ring helicase is loaded, it recruits the primase and signals the switch to the polymerization mode. The transient nature...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkh628
更新日期:2004-06-01 00:00:00
abstract::Budding yeast telomerase is mainly activated by Tel1/Mec1 (yeast ATM/ATR) on Cdc13 from late S to G2 phase of the cell cycle. Here, we demonstrated that the telomerase-recruitment domain of Cdc13 is also phosphorylated by Cdk1 at the same cell cycle stage as the Tel1/Mec1-dependent regulation. Phosphor-specific gel an...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkp235
更新日期:2009-06-01 00:00:00
abstract::In diverse bacterial species, the turnover and processing of many RNAs is mediated by the ribonuclease RNase J, a member of the widely occurring metallo-β-lactamase enzyme family. We present crystal structures of Streptomyces coelicolor RNase J with bound RNA in pre- and post-cleavage states, at 2.27 Å and 2.80 Å reso...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkv732
更新日期:2015-09-18 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
pub_type: 杂志文章
doi:10.1093/nar/6.9.3061
更新日期:1979-07-11 00:00:00
abstract::Alignment-based programs are valuable tools for finding potential homologs in genome sequences. Previously, it has been shown that partition function posterior probabilities attuned to local alignment achieve a high accuracy in identifying distantly similar non-coding RNA sequences that are hidden in a large genome. H...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkq487
更新日期:2010-07-01 00:00:00
abstract::We have used temperature gradient gel electrophoresis (TGGE) to measure the progress of local denaturation in closed circular topoisomer DNA as a function of temperature and superhelicity (sigma). We describe the versatility of this method as a tool for detecting various conformational modifications of plasmid DNAs. T...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/28.11.e51
更新日期:2000-06-01 00:00:00
abstract::Strategies to regulate gene function frequently use small interfering RNAs (siRNAs) that can be made from their shRNA precursors via Dicer. However, when the duplex components of these siRNA effectors are expressed from their respective coding genes, the RNA interference (RNAi) activity is much reduced. Here, we explo...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkr927
更新日期:2012-02-01 00:00:00
abstract::The stability of chromosome ends, the telomeres, is dependent on the ribonucleoprotein telomerase. In vitro, telomerase requires at least one RNA molecule and a reverse transcriptase-like protein. However, for telomere homeostasis in vivo, additional proteins are required. Telomerase RNAs of different species vary in ...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkt514
更新日期:2013-09-01 00:00:00
abstract::The replication control circuit of the FII plasmids R1, R100 and R6-5 involves a small untranslated RNA molecule of about 93 nucleotides. This RNA, designated CopA RNA in plasmid R1, acts in vivo as a post-transcriptional inhibitor of the expression of the RepA protein whose synthesis is required for each round of pla...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/14.6.2523
更新日期:1986-03-25 00:00:00
abstract::Although Dicer is essential for general microRNA (miRNA) biogenesis, vertebrate mir-451 is Dicer independent. Instead, its short pre-miRNA hairpin is 'sliced' by Ago2, then 3'-resected into mature miRNAs. Here, we show that Drosophila cells and animals generate functional small RNAs from mir-451-type precursors. Howev...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkt1038
更新日期:2014-02-01 00:00:00
abstract::Eukaryotic High-Mobility Group B (HMGB) proteins alter DNA elasticity while facilitating transcription, replication and DNA repair. We developed a new single-molecule method to probe non-specific DNA interactions for two HMGB homologs: the human HMGB2 box A domain and yeast Nhp6Ap, along with chimeric mutants replacin...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gks1031
更新日期:2013-01-07 00:00:00
abstract::Allele-specific protospacer adjacent motif (asPAM)-positioning SNPs and CRISPRs are valuable resources for gene therapy of dominant disorders. However, one technical hurdle is to identify the haplotype comprising the disease-causing allele and the distal asPAM SNPs. Here, we describe a novel CRISPR-based method (CRISP...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkz1233
更新日期:2020-03-18 00:00:00
abstract::Clones carrying sequences expressed at altered abundance levels in dunce mutants were isolated by differentially screening a genomic library with cDNA probes representing the RNA population from dunce+ flies and the RNA population from dunce mutant flies. These mutants have an elevated cAMP content, so some isolates p...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/17.20.8313
更新日期:1989-10-25 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
pub_type: 杂志文章
doi:10.1093/nar/gkh422
更新日期:2004-07-01 00:00:00
abstract::T1DBase (http://www.t1dbase.org) is web platform, which supports the type 1 diabetes (T1D) community. It integrates genetic, genomic and expression data relevant to T1D research across mouse, rat and human and presents this to the user as a set of web pages and tools. This update describes the incorporation of new dat...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkq912
更新日期:2011-01-01 00:00:00
abstract::Genome-wide expression profiling is a powerful tool for implicating novel gene ensembles in cellular mechanisms of health and disease. The most popular platform for genome-wide expression profiling is the Affymetrix GeneChip. However, its selection of probes relied on earlier genome and transcriptome annotation which ...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gni179
更新日期:2005-11-10 00:00:00
abstract::The yeast retrotransposon Ty encodes proteins that assemble into virus-like particles (Ty-VLPs) which can be readily purified. We have recently shown that expression of the pl protein encoded by the TYA gene of Ty is sufficient for particle formation. In this paper we show that when a heterologous coding sequence, hum...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/15.18.7571
更新日期:1987-09-25 00:00:00
abstract::Unlike most yeast ribosomal protein genes studied so far the genes coding for S24 and L46 are adjacent on the genome. Sequence analysis showed that the two genes are transcribed divergently, their initiation codons being 630 bp apart. Taking the respective ATG translation start sites as reference points, the 5'- end o...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/13.3.701
更新日期:1985-02-11 00:00:00
abstract::The pattern of sites for cleavage mediated by topoisomerase II was determined in 830 kb of cloned DNA from the Drosophila X chromosome, with the objectives of comparing it with mapped structural and functional landmarks and examining if the correlations with such landmarks reported in individual loci can be generalize...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/25.11.2041
更新日期:1997-06-01 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
pub_type: 杂志文章
doi:10.1093/nar/gkw1263
更新日期:2017-03-17 00:00:00
abstract::Codon usage bias is a universal feature of all genomes. Although codon usage has been shown to regulate mRNA and protein levels by influencing mRNA decay and transcription in eukaryotes, little or no genome-wide correlations between codon usage and mRNA levels are detected in mammalian cells, raising doubt on the sign...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkaa1253
更新日期:2021-01-25 00:00:00
abstract::The integrase (IN) protein of human immunodeficiency virus type 1 (HIV-1) catalyzes site-specific cleavage of 2 bases from the viral long terminal repeat (LTR) sequence yet it binds DNA with little DNA sequence specificity. We have previously demonstrated that the C-terminal half of IN (amino acids 154-288) possesses ...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/21.15.3507
更新日期:1993-07-25 00:00:00
abstract::We have studied the ability of the wt1 tumor suppressor gene product to repress different classes of activation domains previously shown to stimulate the initiation and elongation steps of RNA polymerase II transcription in vivo. Repression assays revealed that WT1 represses all three classes of activation domains: Sp...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/27.14.2889
更新日期:1999-07-15 00:00:00
abstract::A role for BRCA1 in the direct and indirect regulation of transcription is well established. However, a comprehensive view of the degree to which BRCA1 impacts transcriptional regulation on a genome-wide level has not been defined. We performed genome-wide expression profiling and ChIP-chip analysis, comparison of whi...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkr679
更新日期:2011-12-01 00:00:00
abstract::CS23D (chemical shift to 3D structure) is a web server for rapidly generating accurate 3D protein structures using only assigned nuclear magnetic resonance (NMR) chemical shifts and sequence data as input. Unlike conventional NMR methods, CS23D requires no NOE and/or J-coupling data to perform its calculations. CS23D ...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkn305
更新日期:2008-07-01 00:00:00
abstract::Nuclear extracts prepared from growth hormone-secreting (GC) and prolactin-secreting (235-1) rat anterior pituitary cell lines were compared for their ability to bind to the DNA sequences conferring tissue-specificity to the expression of the rat growth hormone (rGH) gene promoter. Cell-specific differences in the int...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/18.17.5235
更新日期:1990-09-11 00:00:00
abstract::The Xist lncRNA requires Repeat A, a conserved RNA element located in its 5' end, to induce gene silencing during X-chromosome inactivation. Intriguingly, Repeat A is also required for production of Xist. While silencing by Repeat A requires the protein SPEN, how Repeat A promotes Xist production remains unclear. We r...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkaa789
更新日期:2020-10-09 00:00:00