Abstract:
:Using a genetic selection for suppressors of a UGA nonsense mutation in trpA, we have isolated a G to A transition mutation at position 1491 in the decoding region of 16S rRNA. This suppressor displayed no codon specificity, suppressing UGA, UAG and UAA nonsense mutations and +1 and -1 frameshift mutations in lacZ. Subsequent examination of a series of mutations at G1491 and its base-pairing partner C1409 revealed various effects on nonsense suppression and frameshifting. Mutations that prevented Watson-Crick base pairing between these residues were observed to increase misreading and frameshifting. However, double mutations that retained pairing potential produced an antisuppressor or hyperaccurate phenotype. Previous studies of antibiotic resistance mutations and antibiotic and tRNA footprints have placed G1491 and C1409 near the site of codon-anticodon pairing. The results of this study demonstrate that the nature of the interaction of these two residues influences the fidelity of tRNA selection.
journal_name
Nucleic Acids Resjournal_title
Nucleic acids researchauthors
Gregory ST,Dahlberg AEdoi
10.1093/nar/23.21.4234subject
Has Abstractpub_date
1995-11-11 00:00:00pages
4234-8issue
21eissn
0305-1048issn
1362-4962pii
5a0552journal_volume
23pub_type
杂志文章abstract::RNA-Seq is gradually becoming the standard tool for transcriptomic expression studies in biological research. Although considerable progress has been recorded in the development of statistical algorithms for the detection of differentially expressed genes using RNA-Seq data, the list of detected genes can differ signi...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gku1273
更新日期:2015-02-27 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
abstract::Mitochondrial DNA maintenance and segregation are dependent on the actin cytoskeleton in budding yeast. We found two cytoskeletal proteins among six proteins tightly associated with rat liver mitochondrial DNA: non-muscle myosin heavy chain IIA and β-actin. In human cells, transient gene silencing of MYH9 (encoding no...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkr052
更新日期:2011-07-01 00:00:00
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journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/21.7.1595
更新日期:1993-04-11 00:00:00
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journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/19.19.5143
更新日期:1991-10-11 00:00:00
abstract::We have previously investigated the role of the N-terminal region of ribosomal protein S4 to participate in 30S ribosome assembly and function (1-3). In this report we extend these studies to the two fragments produced by the chemical cleavage of protein S4 at the tryptophan residue 167. We find that the carboxyl term...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/13.17.6343
更新日期:1985-09-11 00:00:00
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journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gks1179
更新日期:2013-02-01 00:00:00
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journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/11.6.1791
更新日期:1983-03-25 00:00:00
abstract::The 5' processing of rat pre-tRNA(Lys) and a series of mutant derivatives by rat cytosolic RNase P was examined. In standard, non-kinetic assays, mutant precursors synthesized in vitro with 5' leader sequences of 10, 17, 24, 25, and 46 nucleotides were processed to approximately equal levels and yielded precisely clea...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/22.16.3347
更新日期:1994-08-25 00:00:00
abstract::Cytosines in genomic DNA are sometimes methylated. This affects many biological processes and diseases. The standard way of measuring methylation is to use bisulfite, which converts unmethylated cytosines to thymines, then sequence the DNA and compare it to a reference genome sequence. We describe a method for the cri...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gks275
更新日期:2012-07-01 00:00:00
abstract::Extrachromosomal circular DNA (eccDNA) is both a driver of eukaryotic genome instability and a product of programmed genome rearrangements, but its extent had not been surveyed in Oxytricha, a ciliate with elaborate DNA elimination and translocation during development. Here, we captured rearrangement-specific circular...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkz725
更新日期:2019-10-10 00:00:00
abstract::Two hexamer DNA fragments containing a carcinogenic modified base, O6-methyl guanine, have been synthesized by a solid-phase phosphotriester method, in which the unmodified guanine residues present were O6 protected with the 4-nitrophenylethyl group. These two alkylated oligonucleotides were found to have similar Tm's...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/11.10.3393
更新日期:1983-05-25 00:00:00
abstract::A comprehensive listing is made of posttranscriptionally modified nucleosides from RNA reported in the literature through mid-1994. Included are chemical structures, common names, symbols, Chemical Abstracts registry numbers (for ribonucleoside and corresponding base), Chemical Abstracts Index Name, phylogenetic sourc...
journal_title:Nucleic acids research
pub_type: 杂志文章,评审
doi:10.1093/nar/22.12.2183
更新日期:1994-06-25 00:00:00
abstract::KpnI restriction of DNAs from all anthropoid primates studied releases a conspicuous series of segments representing families of long, interspersed repetitive DNAs termed here the KpnI 1.2, 1.5, 1.8 and 1.9 kb families. Human KpnI 1.2 to 1.9 kb segments representative of these families were isolated and separately clo...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/10.10.3175
更新日期:1982-05-25 00:00:00
abstract::ETS-domain transcription factors play important roles in controlling gene expression in a variety of different contexts; however, these proteins bind to very similar sites and it is unclear how in vivo specificity is achieved. In silico analysis is unlikely to reveal specific targets for individual family members and ...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkp804
更新日期:2009-12-01 00:00:00
abstract::Recent advances in DNA-sequencing technology have made it possible to obtain large datasets of small RNA sequences. Here we demonstrate that not all non-perfectly matched small RNA sequences are simple technological sequencing errors, but many hold valuable biological information. Analysis of three small RNA datasets ...
journal_title:Nucleic acids research
pub_type: 杂志文章,meta分析
doi:10.1093/nar/gkp093
更新日期:2009-05-01 00:00:00
abstract::We report here on a quantitative technique called COBRA to determine DNA methylation levels at specific gene loci in small amounts of genomic DNA. Restriction enzyme digestion is used to reveal methylation-dependent sequence differences in PCR products of sodium bisulfite-treated DNA as described previously. We show t...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/25.12.2532
更新日期:1997-06-15 00:00:00
abstract::Upon infection of Escherichia coli by bacteriophage Qβ, the virus-encoded β-subunit recruits host translation elongation factors EF-Tu and EF-Ts and ribosomal protein S1 to form the Qβ replicase holoenzyme complex, which is responsible for amplifying the Qβ (+)-RNA genome. Here, we use X-ray crystallography, NMR spect...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkv1212
更新日期:2015-12-15 00:00:00
abstract::Unlike short interfering RNAs (siRNAs), which are commonly designed to repress a single messenger RNA (mRNA) target through perfect base pairing, microRNAs (miRNAs) are endogenous small RNAs that have evolved to concurrently repress multiple mRNA targets through imperfect complementarity. MicroRNA target recognition i...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gku171
更新日期:2014-05-01 00:00:00
abstract::The laminin (LM)-database, hosted at http://www.lm.lncc.br, was published in the NAR database 2011 edition. It was the first database that provided comprehensive information concerning a non-collagenous family of extracellular matrix proteins, the LMs. In its first version, this database contained a large amount of in...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkt901
更新日期:2014-01-01 00:00:00
abstract::PROtein Domain Organization and Comparison (PRODOC) comprises several programs that enable convenient comparison of proteins as a sequence of domains. The in-built dataset currently consists of approximately 698 000 proteins from 192 organisms with complete genomic data, and all the SWISSPROT proteins obtained from th...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gki474
更新日期:2005-07-01 00:00:00
abstract::Most proteins from higher organisms are known to be multi-domain proteins and contain substantial numbers of intrinsically disordered (ID) regions. To analyse such protein sequences, those from human for instance, we developed a special protein-structure-prediction pipeline and accumulated the products in the Structur...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkq1057
更新日期:2011-01-01 00:00:00
abstract::To organize data resulting from the phenotypic characterization of a library of 30,000 T-DNA enhancer trap (ET) insertion lines of rice (Oryza sativa L cv. Nipponbare), we developed the Oryza Tag Line (OTL) database (http://urgi.versailles.inra.fr/OryzaTagLine/). OTL structure facilitates forward genetic search for sp...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkm762
更新日期:2008-01-01 00:00:00
abstract::Lens epithelium-derived growth factor/p75 (LEDGF/p75) is a transcriptional coactivator involved in stress response, autoimmune disease, cancer and HIV replication. A fusion between the nuclear pore protein NUP98 and LEDGF/p75 has been found in human acute and chronic myeloid leukemia and association of LEDGF/p75 with ...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkq410
更新日期:2010-10-01 00:00:00
abstract::The Saccharomyces cerevisiae viruses are non-infectious double-stranded (ds) RNA viruses present in most laboratory strains of yeast. Their genome consists of one or more dsRNAs separately encapsidated in particles composed mainly of one polypeptide, which has a Mr of 88 kdaltons in the best-studied viral subtype. A l...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/13.5.1575
更新日期:1985-03-11 00:00:00
abstract::Structural information on interacting proteins is important for understanding life processes at the molecular level. Genome-wide docking database is an integrated resource for structural studies of protein-protein interactions on the genome scale, which combines the available experimental data with models obtained by ...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/gkp944
更新日期:2010-01-01 00:00:00
abstract::The three-dimensional Poisson-Boltzmann equation for the distribution of counterion charge density around double helical DNA has been solved by an iterative procedure. These computations have been performed for 0.01M monovalent salt solutions. A systematic study of the ten possible sequences found among adjacent nucle...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/14.3.1479
更新日期:1986-02-11 00:00:00
abstract::Poly 2'0-ethylcytidylic acid (poly (Ce)) was prepared by polymerization of 2'-0-ethylcytidine-5'-pyrophosphate with Escherichia coli polynucleotide phosphorylase in the presence of Mn++, and its properties compared with those of poly (rC), poly (Cm) and poly (dC). The neutral form of pOLY (Ce) exhibits properties simi...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/3.3.817
更新日期:1976-03-01 00:00:00
abstract::The sequence of the 1173 nt 12S kinetoplast ribosomal RNA from Leishmania tarentolae was determined from the maxicircle DNA sequence, and the 5' and 3' ends localized by primer runoff and S1 nuclease protection experiments. The gene was shown to be free of introns by S1 nuclease analysis. A partial secondary structure...
journal_title:Nucleic acids research
pub_type: 杂志文章
doi:10.1093/nar/13.7.2337
更新日期:1985-04-11 00:00:00
abstract::X-linked agammaglobulinemia (XLA) is an immunodeficiency caused by mutations in the gene coding for Bruton's agammaglobulinemia tyrosine kinase (BTK). A database (BTKbase) of BTK mutations has been compiled and the recent update lists 368 entries from 318 unrelated families showing 228 unique molecular events. In addi...
journal_title:Nucleic acids research
pub_type: 杂志文章,多中心研究
doi:10.1093/nar/25.1.166
更新日期:1997-01-01 00:00:00