Abstract:
:A single base change in 16S rRNA (C726 to G) has previously been shown to have a dramatic effect on protein synthesis in E. coli (1). This paper more specifically details the effects of the mutation on mRNA binding and translation-termination. The in vitro technique of toeprinting (2) was used to demonstrate that 30S subunits containing the mutation 726G had an altered binding affinity for mRNA by comparison to the wild type. In addition, expression of the mutant ribosomes in vivo resulted in exclusive suppression of the UGA nonsense codon. This effect was supported by in vitro studies that showed the mutant ribosomes to have an altered binding affinity for Release Factor-2.
journal_name
Nucleic Acids Resjournal_title
Nucleic acids researchauthors
Prescott CD,Göringer HUdoi
10.1093/nar/18.18.5381subject
Has Abstractpub_date
1990-09-25 00:00:00pages
5381-6issue
18eissn
0305-1048issn
1362-4962journal_volume
18pub_type
杂志文章abstract::The PathoSystems Resource Integration Center (PATRIC) is the bacterial Bioinformatics Resource Center funded by the National Institute of Allergy and Infectious Diseases (https://www.patricbrc.org). PATRIC supports bioinformatic analyses of all bacteria with a special emphasis on pathogens, offering a rich comparative...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkz943
更新日期:2020-01-08 00:00:00
abstract::MicroArray Gene expression and Network Evaluation Toolkit (MAGNET) is a web-based application that provides tools to generate and score both protein-protein interaction networks and coexpression networks. MAGNET integrates user-provided experimental measurements with high-throughput proteomic datasets, generating weig...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gks526
更新日期:2012-07-01 00:00:00
abstract::Synchronous plasmodia of cycloheximide-sensitive and cycloheximide-resistant strains of Physarum polycephalum were labelled with 3[H]-deoxyadenosine in pulse and pulse-chase experiments in presence and absence of cycloheximide. The replication products were studied with alkaline sucrose gradient sedimentation analysis...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/4.2.405
更新日期:1977-02-01 00:00:00
abstract::A reporter assay was developed to detect and quantify nonsense codon suppression by chemically aminoacylated tRNAs in mammalian cells. It is based on the cellular expression of the enhanced green fluorescent protein (EGFP) as a reporter for the site-specific amino acid incorporation in its sequence using an orthogonal...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gnf128
更新日期:2002-12-01 00:00:00
abstract::Automated fluorescence-based DNA sequence analysis offers the possibility to undertake very large scale sequencing projects. Directed strategies, such as the specific-primer-directed sequencing approach ('gene walking'), should prove useful in such projects. Described herein is a study involving the use of this approa...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/17.15.6087
更新日期:1989-08-11 00:00:00
abstract::A new method is reported for the synthesis of oligodeoxyribonucleotides containing 2-aminopurine residues at selected sites. This method involves protection of the 2-aminopurine ribonucleoside, reduction to the deoxyribonucleoside and standard preparation of the 5'-0- (4,4'-dimethoxytrityl)-3'-O-(2-cyanoethyl)-N,N- di...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/24.4.754
更新日期:1996-02-15 00:00:00
abstract::In this report, we provide an update on the services and content which are available on the web server of IBM's Bioinformatics and Pattern Discovery group. The server, which is operational around the clock, provides access to a large number of methods that have been developed and published by the group's members. Ther...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkh367
更新日期:2004-07-01 00:00:00
abstract::In order to examine the nature of the complex formation between the ribosomal protein S1 and nucleic acids three methods were used: Inhibition of the reaction of n-ethyl[2.3 14C]-maleimide with S1 by the addition of oligonucleotides; adsorption of the complexes to nitrocellulose filters; and equilibrium dialysis. The ...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/4.10.3627
更新日期:1977-10-01 00:00:00
abstract::With read lengths of currently up to 2 × 300 bp, high throughput and low sequencing costs Illumina's MiSeq is becoming one of the most utilized sequencing platforms worldwide. The platform is manageable and affordable even for smaller labs. This enables quick turnaround on a broad range of applications such as targete...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gku1341
更新日期:2015-03-31 00:00:00
abstract::Use of antisense oligonucleotides is a versatile strategy for achieving control of gene expression. Unfortunately, the interpretation of antisense-induced phenotypes is sometimes difficult, and chemical modifications that improve the potency and specificity of antisense action would be useful. The introduction of lock...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkf651
更新日期:2002-12-01 00:00:00
abstract::A comparison of gene structure, sequence, and transcription pattern of heat shock loci 93D of Drosophila melanogaster and 48B of Drosophila hydei has been performed. Both heat shock loci consist of an unique region that is flanked by an internally repetitive element. Different members of these elements are highly cons...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/15.8.3317
更新日期:1987-04-24 00:00:00
abstract::To enhance our knowledge regarding biological pathway regulation, we took an integrated approach, using the biomedical literature, ontologies, network analyses and experimental investigation to infer novel genes that could modulate biological pathways. We first constructed a novel gene network via a pairwise compariso...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gku678
更新日期:2014-10-01 00:00:00
abstract::The advances of next-generation sequencing technology have facilitated metagenomics research that attempts to determine directly the whole collection of genetic material within an environmental sample (i.e. the metagenome). Identification of genes directly from short reads has become an important yet challenging probl...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkq747
更新日期:2010-11-01 00:00:00
abstract::The gene for human apolipoprotein (apo) A-II has been isolated from a human genomic DNA library. The cloned fragment was approximately 14 kilobase-pair (kb) long, and extended about 9.0 kb upstream as well as 3.5 kb downstream from the apoA-II gene, which was contained within a 3.1 kb HindIII fragment of human DNA. Th...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/13.12.4597
更新日期:1985-06-25 00:00:00
abstract::Proper cytokine gene expression is essential in development, homeostasis and immune responses. Studies on the transcriptional control of cytokine genes have mostly focused on highly researched transcription factors (TFs) and cytokines, resulting in an incomplete portrait of cytokine gene regulation. Here, we used enha...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkaa1055
更新日期:2020-12-02 00:00:00
abstract::Ribosome assembly is a process fundamental for all cellular activities. The efficiency and accuracy of the subunit assembly are tightly regulated and closely monitored. In the present work, we characterized, both compositionally and structurally, a set of in vivo 50S subunit precursors (45S), isolated from a mutant ba...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkt423
更新日期:2013-08-01 00:00:00
abstract::Core members of the MBD protein family (MeCP2, MBD1, MBD2 and MBD4) share a methyl-CpG-binding domain that has a specific affinity for methylated CpG sites in double-stranded DNA. By multimerizing the MDB domain of Mbd1, we engineered a poly-MBD protein that displays methyl-CpG-specific binding in vitro with a dissoci...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkl527
更新日期:2006-08-07 00:00:00
abstract::We previously proposed that the first enzyme for histidine biosynthesis in Salmonellatyphimurium plays a role in regulating expression of the histidine operon and that in order to play this role the enzyme must form a complex with histidyl-tRNA. Among the many observations that led to these conclusions were 1) that re...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/1.7.881
更新日期:1974-07-01 00:00:00
abstract::One-Block CYRCA is an automated procedure for identifying multiple-block alignments from single block queries (http://bioinfo.weizmann.ac.il/blocks/OneCYRCA). It is based on the LAMA and CYRCA block-to-block alignment methods. The procedure identifies whether the query blocks can form new multiple-block alignments (bl...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gki488
更新日期:2005-07-01 00:00:00
abstract::Investigation of biological processes using selective chemical interventions is generally applied in biomedical research and drug discovery. Many studies of this kind make use of gene expression experiments to explore cellular responses to chemical interventions. Recently, some research groups constructed libraries of...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkn610
更新日期:2008-11-01 00:00:00
abstract::Decay of (125)I produces a shower of low energy electrons (Auger electrons) that cause strand breaks in DNA in a distance-dependent manner with 90% of the breaks located within 10 bp from the decay site. We studied strand breaks in RNA molecules produced by decay of (125)I incorporated into complementary DNA oligonucl...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkf622
更新日期:2002-11-15 00:00:00
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journal_title:Nucleic acids research
pub_type: 杂志文章
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更新日期:2018-04-06 00:00:00
abstract::HBV genotypes differ in pathogenicity. In addition, genotype-specific differences in the regulation of transcription and virus replication exist in HBV, but the underlying mechanisms are unknown. Here, we show the presence of a G-quadruplex motif in the promoter of the preS2/S gene; this G-quadruplex is highly conserv...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkx823
更新日期:2017-11-02 00:00:00
abstract::Increasing evidence indicates that active DNA demethylation is involved in several processes in mammals, resulting in developmental stage-specificity and cell lineage-specificity. The recently discovered Ten-Eleven Translocation (TET) dioxygenases are accepted to be involved in DNA demethylation by initiating 5-mC oxi...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkt1019
更新日期:2014-02-01 00:00:00
abstract::A restriction endonuclease, ApaI, has been partially purified from Acetobacter pasteurianus. This enzyme cleaves bacteriophage lambda DNA and Simian virus 40 DNA at one site, adenovirus-2 DNA at more than nine sites, but it does not cleave phi X174 DNA nor plasmid pBR322 DNA. This enzyme recognizes the sequence (formu...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/11.13.4409
更新日期:1983-07-11 00:00:00
abstract::A lac promotor mutant was constructed by filling in the protruding ends of the HpaII site located within the lac promotor. The mutation, named M42, is a two base pair insertion that changes the distance between the -10 and -35 regions from 18 to 20 residues. The activity of the mutant promotor measured in vivo is 15% ...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/10.3.903
更新日期:1982-02-11 00:00:00
abstract::It has been shown that the monomethylated cap structure plays important roles in pre-mRNA splicing and nuclear export of RNA. As a candidate for the factor involved in these nuclear events we have previously purified an 80 kDa nuclear cap binding protein (NCBP) from a HeLa cell nuclear extract and isolated its full-le...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/23.18.3638
更新日期:1995-09-25 00:00:00
abstract::To explain the activation of transcription by a remote enhancer, two models are most often considered, namely looping and scanning. A scanning model, also referred to as 'polymerase entry site' model predicts that for two adjacent promoters the one proximal to an enhancer would be preferentially activated. Preferentia...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/17.22.8931
更新日期:1989-11-25 00:00:00
abstract::A challenge for large-scale siRNA loss-of-function studies is the biological pleiotropy resulting from multiple modes of action of siRNA reagents. A major confounding feature of these reagents is the microRNA-like translational quelling resulting from short regions of oligonucleotide complementarity to many different ...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gku306
更新日期:2014-07-01 00:00:00
abstract::MicroRNAs (miRNAs) are small noncoding RNAs that act as master regulators in many biological processes. miRNAs function mainly by downregulating the expression of their gene targets. Thus, accurate prediction of miRNA targets is critical for characterization of miRNA functions. To this end, we have developed an online...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkz757
更新日期:2020-01-08 00:00:00