DNA double-strand break repair in cell-free extracts from Ku80-deficient cells: implications for Ku serving as an alignment factor in non-homologous DNA end joining.

abstract：:Preparation of the two nonanucleotides, d(pG-G-A-G-G-A-G-A-A) and d(pT-T-C-T-G-T-T-G-A), and the octanucleotide, d(pT-G-G-C-C-C-A-T) is described by a rapid solid-phase method on a polyamide support. The syntheses were carried out using a modified solid-phase peptide synthesiser and required one day for each nucleotid...

journal_title：Nucleic acids research

authors： Gait MJ,Sheppard RC

更新日期：1977-12-01 00:00:00

abstract：:Transcriptional regulatory networks specify regulatory proteins controlling the context-specific expression levels of genes. Inference of genome-wide regulatory networks is central to understanding gene regulation, but remains an open challenge. Expression-based network inference is among the most popular methods to i...

journal_title：Nucleic acids research

authors： Siahpirani AF,Roy S

更新日期：2017-02-28 00:00:00

abstract：:The R-Coffee web server produces highly accurate multiple alignments of noncoding RNA (ncRNA) sequences, taking into account predicted secondary structures. R-Coffee uses a novel algorithm recently incorporated in the T-Coffee package. R-Coffee works along the same lines as T-Coffee: it uses pairwise or multiple seque...

journal_title：Nucleic acids research

authors： Moretti S,Wilm A,Higgins DG,Xenarios I,Notredame C

更新日期：2008-07-01 00:00:00

abstract：:A vast number of sweet tasting molecules are known, encompassing small compounds, carbohydrates, d-amino acids and large proteins. Carbohydrates play a particularly big role in human diet. The replacement of sugars in food with artificial sweeteners is common and is a general approach to prevent cavities, obesity and ...

journal_title：Nucleic acids research

authors： Ahmed J,Preissner S,Dunkel M,Worth CL,Eckert A,Preissner R

更新日期：2011-01-01 00:00:00

abstract：:The structures of the termini and their flanking regions of two human KpnI family members were investigated. The two differed in length, but the starting sequence at one terminal (defined as the 5' terminal) was found to be common to both members. The Alu family sequence was found in the 5' flanking regions. The KpnI ...

journal_title：Nucleic acids research

authors： Miyake T,Migita K,Sakaki Y

更新日期：1983-10-11 00:00:00

abstract：:The triphosphate of the nucleoside deoxyribosyl dihydropyrimido[4,5-c][1,2]oxazin-7-one (dP) is known to be incorporated into DNA efficiently by Taq polymerase and is a useful tool for polymerase-mediated in vitro mutagenesis. It is shown here that dP is a potent mutagen in Escherichia coli and Salmonella typhimurium ...

journal_title：Nucleic acids research

authors： Negishi K,Williams DM,Inoue Y,Moriyama K,Brown DM,Hayatsu H

更新日期：1997-04-15 00:00:00

abstract：:MicA is a trans-encoded small non-coding RNA, which downregulates porin-expression in stationary-phase. In this work, we focus on the role of endoribonucleases III and E on Salmonella typhimurium sRNA MicA regulation. RNase III is shown to regulate MicA in a target-coupled way, while RNase E is responsible for the con...

journal_title：Nucleic acids research

authors： Viegas SC,Silva IJ,Saramago M,Domingues S,Arraiano CM

更新日期：2011-04-01 00:00:00

abstract：:The precursor to the Euglena light harvesting chlorophyll a/b binding protein of photosystem II (LHCPII) is a polyprotein containing multiple copies of LHCPII covalently joined by a decapeptide linker. cDNA and genomic clones encoding the 5' and 3' end of a 6.6 kb LHCPII mRNA were sequenced. A 3.1 kb genomic region en...

journal_title：Nucleic acids research

authors： Muchhal US,Schwartzbach SD

更新日期：1994-12-25 00:00:00

abstract：:The BRENDA enzyme database (https://www.brenda-enzymes.org), established in 1987, has evolved into the main collection of functional enzyme and metabolism data. In 2018, BRENDA was selected as an ELIXIR Core Data Resource. BRENDA provides reliable data, continuous curation and updates of classified enzymes, and the in...

journal_title：Nucleic acids research

authors： Chang A,Jeske L,Ulbrich S,Hofmann J,Koblitz J,Schomburg I,Neumann-Schaal M,Jahn D,Schomburg D

更新日期：2021-01-08 00:00:00

abstract：:The ribosomal proteins L4 and L22 form part of the peptide exit tunnel in the large ribosomal subunit. In Escherichia coli, alterations in either of these proteins can confer resistance to the macrolide antibiotic, erythromycin. The structures of the 30S as well as the 50S subunits from each antibiotic resistant mutan...

journal_title：Nucleic acids research

authors： O'Connor M,Gregory ST,Dahlberg AE

更新日期：2004-10-27 00:00:00

abstract：:A vexing difficulty of the RNA world hypothesis is how RNA molecules of significant complexity could ever have evolved given their susceptibility to degradation. One way degradation might have been reduced is through low temperature. Here we report that truncated and fragmented derivatives of the hairpin ribozyme can ...

journal_title：Nucleic acids research

authors： Vlassov AV,Johnston BH,Landweber LF,Kazakov SA

更新日期：2004-05-25 00:00:00

abstract：:The mRNA export complex TREX (TREX) is known to contain Aly, UAP56, Tex1 and the THO complex, among which UAP56 is required for TREX assembly. Here, we systematically investigated the role of each human TREX component in TREX assembly and its association with the mRNA. We found that Tex1 is essentially a subunit of th...

journal_title：Nucleic acids research

authors： Chi B,Wang Q,Wu G,Tan M,Wang L,Shi M,Chang X,Cheng H

更新日期：2013-01-01 00:00:00

abstract：:Thymine DNA glycosylase (TDG) is a DNA repair enzyme that excises a variety of mismatched or damaged nucleotides (nts), e.g. dU, dT, 5fC and 5caC. TDG is shown to play essential roles in maintaining genome integrity and correctly programming epigenetic modifications through DNA demethylation. After locating the lesion...

journal_title：Nucleic acids research

authors： Da LT,Yu J

更新日期：2018-06-20 00:00:00

abstract：:The design and synthesis of metal complexes that can specifically target DNA secondary structure has attracted considerable attention. Chiral metallosupramolecular complexes (e.g. helicates) in particular display unique DNA-binding behavior, however until recently few examples which are both water-compatible and enant...

journal_title：Nucleic acids research

authors： Zhao A,Howson SE,Zhao C,Ren J,Scott P,Wang C,Qu X

更新日期：2017-05-19 00:00:00

abstract：:IL-2 gene expression in activated T-cells is initiated by chromatin remodeling at the IL-2 proximal promoter and conversion of a transcriptional repressor into a potent transcriptional activator. A purine-box regulator complex was purified from activated Jurkat T-cell nuclei based on sequence-specific DNA binding to t...

journal_title：Nucleic acids research

authors： Shi L,Qiu D,Zhao G,Corthesy B,Lees-Miller S,Reeves WH,Kao PN

更新日期：2007-01-01 00:00:00

abstract：:Orthology is a widely used concept in comparative and evolutionary genomics. In addition to prokaryotic orthology, delineating eukaryotic orthology has provided insight into the evolution of higher organisms. Indeed, many eukaryotic ortholog databases have been established for this purpose. However, unlike prokaryotes...

journal_title：Nucleic acids research

authors： Ho MR,Jang WJ,Chen CH,Ch'ang LY,Lin WC

更新日期：2008-06-01 00:00:00

abstract：:Retinoic acid-inducible gene I (RIG-I) is a pattern recognition receptor expressed in metazoan cells that is responsible for eliciting the production of type I interferons and pro-inflammatory cytokines upon detection of intracellular, non-self RNA. Structural studies of RIG-I have identified a novel Pincer domain com...

journal_title：Nucleic acids research

authors： Rawling DC,Kohlway AS,Luo D,Ding SC,Pyle AM

更新日期：2014-10-01 00:00:00

abstract：:Archaeal family-B DNA polymerases bind tightly to deaminated bases and stall replication on encountering uracil in template strands, four bases ahead of the primer-template junction. Should the polymerase progress further towards the uracil, for example, to position uracil only two bases in front of the junction, 3'-5...

journal_title：Nucleic acids research

authors： Richardson TT,Wu X,Keith BJ,Heslop P,Jones AC,Connolly BA

更新日期：2013-02-01 00:00:00

abstract：:Thermally induced structural transition in the d(TTTTATAATAAA) d(TTTATTATAAAA) heteroduplex is characterized by UV-spectroscopy and differential scanning calorimetry. At low salt (less than 0.1 M) the occurrence of a cooperative transition in the lower temperature range, followed by a broad transition connected with s...

journal_title：Nucleic acids research

authors： Bolewska K,Zielenkiewicz A,Wierzchowski KL

更新日期：1984-04-11 00:00:00

abstract：:The complete DNA sequence of pO157, the large virulence plasmid of EHEC strain O157:H7 EDL 933, is presented. The 92 kb F-like plasmid is composed of segments of putative virulence genes in a framework of replication and maintenance regions, with seven insertion sequence elements, located mostly at the boundaries of t...

journal_title：Nucleic acids research

authors： Burland V,Shao Y,Perna NT,Plunkett G,Sofia HJ,Blattner FR

更新日期：1998-09-15 00:00:00

abstract：:Oligonucleotide-directed mutagenesis was used to introduce an A to C transversion at position 523 in the 16S ribosomal RNA gene of Escherichia coli rrnB operon cloned in plasmid pKK3535. E. coli cells transformed with the mutated plasmid were resistant to streptomycin. The mutated ribosomes isolated from these cells w...

journal_title：Nucleic acids research

authors： Melançon P,Lemieux C,Brakier-Gingras L

更新日期：1988-10-25 00:00:00

abstract：:By transporting one DNA double helix (T-segment) through a double-strand break in another (G-segment), topoisomerase II reduces fractions of DNA catenanes, knots and supercoils to below equilibrium values. How DNA segments are selected to simplify the equilibrium DNA topology is enigmatic, and the biological relevance...

journal_title：Nucleic acids research

authors： Martínez-García B,Fernández X,Díaz-Ingelmo O,Rodríguez-Campos A,Manichanh C,Roca J

更新日期：2014-02-01 00:00:00

abstract：:Clustered regularly interspaced short palindromic repeats (CRISPRs) and their associated Cas proteins comprise a prokaryotic RNA-guided adaptive immune system that interferes with mobile genetic elements, such as plasmids and phages. The type I-E CRISPR interference complex Cascade from Escherichia coli is composed of...

journal_title：Nucleic acids research

authors： Beloglazova N,Kuznedelov K,Flick R,Datsenko KA,Brown G,Popovic A,Lemak S,Semenova E,Severinov K,Yakunin AF

更新日期：2015-01-01 00:00:00

abstract：:Natural oligopeptides may regulate nearly all vital processes. To date, the chemical structures of nearly 6000 oligopeptides have been identified from >1000 organisms representing all the biological kingdoms. We have compiled the known physical, chemical and biological properties of these oligopeptides--whether synthe...

journal_title：Nucleic acids research

authors： Zamyatnin AA,Borchikov AS,Vladimirov MG,Voronina OL

更新日期：2006-01-01 00:00:00

abstract：:By subtractive screening of a library made from mRNA of lipopolysaccharide (LPS)-stimulated mouse B lymphocytes we isolated cDNA-clones encoding the ribosomal protein L7. Human L7 mRNA was cloned from activated T-lymphocytes. Although no specific function of L7 in the translation apparatus is known as yet, it should b...

journal_title：Nucleic acids research

authors： Hemmerich P,von Mikecz A,Neumann F,Sözeri O,Wolff-Vorbeck G,Zoebelein R,Krawinkel U

更新日期：1993-01-25 00:00:00

abstract：:Yeast tRNA Val 1 alkylation with 2', 3'-O-4-(N-2-chloroethyl-N-methylamino) benzylidene d(pC-G)-A proceeds at 20 degrees - 30 degrees C in the complementary complexes which are formed by d(pC-G)-A greater than RC1 binding to 3 sequences of tRNA Val 1 : psi-C-G58 in the T loop, C-G40 at the 3'-side of the anticodon loo...

journal_title：Nucleic acids research

authors： Grineva NI,Karpova GG,Kuznetsova LM,Venkstern TV,Bayev AA

更新日期：1977-01-01 00:00:00

abstract：:Non-homologous end-joining (NHEJ) of DNA double-strand breaks (DSBs) is mediated by two protein complexes comprising Ku80/Ku70/DNA-PKcs/Artemis and XRCC4/LigaseIV/XLF. Loss of Ku or XRCC4/LigaseIV function compromises the rejoining of radiation-induced DSBs and leads to defective V(D)J recombination. In this study, we...

journal_title：Nucleic acids research

authors： Schulte-Uentrop L,El-Awady RA,Schliecker L,Willers H,Dahm-Daphi J

更新日期：2008-05-01 00:00:00

abstract：:The irradiation of native or unmodified yeast tRNA(Phe) by short wavelength UV light (260 nM) results in an intramolecular crosslink that has been mapped to occur between C48 in the variable loop and U59 in the T loop. Photo-reversibility of the crosslink and the absence of fluorescent photo adducts suggest that the c...

journal_title：Nucleic acids research

authors： Behlen LS,Sampson JR,Uhlenbeck OC

更新日期：1992-08-11 00:00:00

abstract：:We describe a cell-free chromatin assembly system derived from the yeast Saccharomyces cerevisiae, which efficiently packages DNA into minichromosomes in a reaction dependent on exogenous core histones and an ATP-regenerating system. Both supercoiled and relaxed plasmid DNA serve as templates for nucleosomal loading i...

journal_title：Nucleic acids research

authors： Rodríguez-Campos A,Koop R,Faraudo S,Beato M

更新日期：2004-07-28 00:00:00

abstract：:We have examined the transcript levels of the Saccharomyces cerevisiae DNA repair gene RAD18 in UV irradiated cells, in the mitotic cell cycle, and during meiosis. Levels of RAD18 mRNA increased upon UV irradiation, but remained constant during the mitotic cell cycle. During meiosis, RAD18 mRNA levels rose about 4 fol...

journal_title：Nucleic acids research

authors： Jones JS,Prakash L

更新日期：1991-02-25 00:00:00