Prokaryotic 5'-3' exonucleases share a common core structure with gamma-delta resolvase.

abstract：:CLASPIN is an essential mediator in the DNA replication checkpoint, responsible for ATR (ataxia telangiectasia and Rad3-related protein)-dependent activation of CHK1 (checkpoint kinase 1). Here we found a dynamic signaling pathway that regulates CLASPIN turn over. Under unperturbed conditions, the E3 ubiquitin ligase ...

journal_title：Nucleic acids research

authors： Zhu M,Zhao H,Liao J,Xu X

更新日期：2014-12-01 00:00:00

abstract：:Here we examined the role of cellular vitamin C in genotoxicity of carcinogenic chromium(VI) that requires reduction to induce DNA damage. In the presence of ascorbate (Asc), low 0.2-2 microM doses of Cr(VI) caused 10-15 times more chromosomal breakage in primary human bronchial epithelial cells or lung fibroblasts. D...

journal_title：Nucleic acids research

authors： Reynolds M,Stoddard L,Bespalov I,Zhitkovich A

更新日期：2007-01-01 00:00:00

abstract：:DNA synthesis of broad host-range plasmid R1162 is initiated from two positions, flanking a large (40 bp stem, 40 bp loop) inverted repeat. Each start-point is located within a highly conserved, but oppositely oriented, 10 base-pair sequence. Synthesis from the two positions converges within the intervening inverted r...

journal_title：Nucleic acids research

authors： Lin LS,Meyer RJ

更新日期：1987-10-26 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

authors： Rho M,Tang H,Ye Y

更新日期：2010-11-01 00:00:00

abstract：:Transcriptional co-activator LEDGF/p75 is the major cellular interactor of HIV-1 integrase (IN), critical to efficient viral replication. In this work, a series of INs from the Betaretrovirus, Gammaretrovirus, Deltaretrovirus, Spumavirus and Lentivirus retroviral genera were tested for interaction with the host factor...

journal_title：Nucleic acids research

authors： Cherepanov P

更新日期：2007-01-01 00:00:00

abstract：:Using a combination of mathematical modelling, statistical simulation and large-scale data analysis we study the properties of linear regulatory chains (LRCs) within gene regulatory networks (GRNs). Our modelling indicates that downstream genes embedded within LRCs are highly insulated from the variation in expression...

journal_title：Nucleic acids research

authors： Liu D,Albergante L,Newman TJ

更新日期：2017-07-07 00:00:00

abstract：:The conserved bacterial anticodon nuclease (ACNase) RloC and its phage-excluding homolog PrrC comprise respective ABC-adenosine triphosphatase (ATPase) and ACNase N- and C-domains but differ in three key attributes. First, prrC is always linked to an ACNase silencing, DNA restriction-modification (R-M) locus while rlo...

journal_title：Nucleic acids research

authors： Klaiman D,Steinfels-Kohn E,Krutkina E,Davidov E,Kaufmann G

更新日期：2012-09-01 00:00:00

abstract：:A novel method of determining the number of superhelical turns of a covalently-closed plasmid DNA is described. It relies on the determination of the hyperchromicity, and hence the proportion of unstacked basepairs, of a partially heat-denatured sample which co-migrates during electrophoresis with nicked circular dupl...

journal_title：Nucleic acids research

authors： Dougherty G,Koller T

更新日期：1982-01-22 00:00:00

abstract：:Sequence-specific interactions between aminoacyl-tRNA synthetases and their cognate tRNAs ensure both accurate RNA recognition and the efficient catalysis of aminoacylation. The effects of tRNA(Trp)variants on the aminoacylation reaction catalyzed by wild-type Escherichia coli tryptophanyl-tRNA synthe-tase (TrpRS) hav...

journal_title：Nucleic acids research

authors： Ibba M,Sever S,Praetorius-Ibba M,Söll D

更新日期：1999-09-15 00:00:00

abstract：:Protein-protein interactions regulate many essential enzymatic processes in the cell. Somatic mutations outside of an enzyme active site can therefore impact cellular function by disruption of critical protein-protein interactions. In our investigation of the cellular impact of the T304I cancer mutation of DNA Polymer...

journal_title：Nucleic acids research

authors： Fang Q,Andrews J,Sharma N,Wilk A,Clark J,Slyskova J,Koczor CA,Lans H,Prakash A,Sobol RW

更新日期：2019-07-09 00:00:00

abstract：:The DNA unwinding element (DUE) is a sequence rich in adenine and thymine residues present within the origin region of both prokaryotic and eukaryotic replicons. Recently, it has been shown that this is the site where bacterial DnaA proteins, the chromosomal replication initiators, form a specific nucleoprotein filame...

journal_title：Nucleic acids research

authors： Wegrzyn K,Fuentes-Perez ME,Bury K,Rajewska M,Moreno-Herrero F,Konieczny I

更新日期：2014-07-01 00:00:00

abstract：:Human adenovirus mutants that carry a large deletion in early region 4 (E4) are severely defective in the synthesis of viral late proteins. Plasmids that carry intact E4 sequences can complement the late protein synthetic defect of such mutants when introduced into infected cells by transfection, presumably due to the...

journal_title：Nucleic acids research

authors： Ketner G,Bridge E,Virtanen A,Hemström C,Pettersson U

更新日期：1989-04-25 00:00:00

abstract：:Adenosine to inosine editing of mRNA from the human 5-HT2C receptor gene (HTR2C) occurs at five exonic positions (A-E) in a stable stem-loop that includes the normal 5' splice site of intron 5 and is flanked by two alternative splice sites. Using in vitro editing, we identified a novel editing site (F) located in the ...

journal_title：Nucleic acids research

authors： Flomen R,Knight J,Sham P,Kerwin R,Makoff A

更新日期：2004-04-15 00:00:00

abstract：:The Aspergillus nidulans sequence ans1, previously known to enhance transformation frequencies of pyr4-based vectors, was shown to enhance the efficiency of argB and trpC-based vectors. Increased efficiencies could be obtained by constructing vectors containing argB and ans1 or by cotransforming selectable plasmids (c...

journal_title：Nucleic acids research

authors： Cullen D,Wilson LJ,Grey GL,Henner DJ,Turner G,Ballance DJ

更新日期：1987-11-25 00:00:00

abstract：:The x-ray crystal structures of two new anti-HIV compounds, 9-(2,3-dideoxy-2-fluoro-beta-D-threo-pentofuranosyl)adenine (2'-F-dd-araA) and 9-(2,3-dideoxy-2-fluoro-beta-D-threo- pentofuranosyl)hypoxanthine (2'-F-dd-aral), have been determined at two temperatures. Both crystals are in the space group P2(1)2(1)2(1), and ...

journal_title：Nucleic acids research

authors： Liaw YC,Gao YG,Marquez VE,Wang AH

更新日期：1992-02-11 00:00:00

abstract：:We have determined the complete nucleotide sequence of the regions of mouse ribosomal RNA transcription unit which separate mature rRNA genes. These internal transcribed spacers (ITS) are excised from rRNA precursor during ribosome biosynthesis. ITS 1, between 18S and 5.8S rRNA genes, is 999 nucleotides long. ITS 2, b...

journal_title：Nucleic acids research

authors： Michot B,Bachellerie JP,Raynal F

更新日期：1983-05-25 00:00:00

abstract：:The Génolevures online database (http://cbi.labri.fr/Genolevures/ and http://genolevures.org/) provides exploratory tools and curated data sets relative to nine complete and seven partial genome sequences determined and manually annotated by the Génolevures Consortium, to facilitate comparative genomic studies of Hemi...

journal_title：Nucleic acids research

authors： Sherman DJ,Martin T,Nikolski M,Cayla C,Souciet JL,Durrens P,Génolevures Consortium.

更新日期：2009-01-01 00:00:00

abstract：:DNA helicases are required for virtually every aspect of DNA metabolism, including replication, repair, recombination and transcription. A comprehensive description of these essential biochemical processes requires detailed understanding of helicase mechanisms. These enzymes are ubiquitous, having been identified in v...

journal_title：Nucleic acids research

authors： Mackintosh SG,Raney KD

更新日期：2006-01-01 00:00:00

abstract：:The crp gene of E. coli, which codes for cAMP receptor protein (CRP), has been cloned in the plasmid pBR322 on the basis of a genetic complementation. One of the recombinant plasmids, pHA1, was shown to direct the synthesis of CRP in a cell-free system. The location of the crp gene was determined by constructing subcl...

journal_title：Nucleic acids research

authors： Aiba H,Fujimoto S,Ozaki N

更新日期：1982-02-25 00:00:00

abstract：:Giant viruses have extraordinarily large dsDNA genomes, and exceptionally, they encode various components of the translation apparatus, including tRNAs, aminoacyl-tRNA synthetases and translation factors. Here, we focused on the elongation factor 1 (EF1) family of viral translational GTPases (trGTPases), using computa...

journal_title：Nucleic acids research

authors： Zinoviev A,Kuroha K,Pestova TV,Hellen CUT

更新日期：2019-06-20 00:00:00

abstract：:MicroRNAs are small (approximately 22 nt) RNAs that regulate gene expression and play important roles in both normal and disease physiology. The use of microarrays for global characterization of microRNA expression is becoming increasingly popular and has the potential to be a widely used and valuable research tool. H...

journal_title：Nucleic acids research

authors： Sarkar D,Parkin R,Wyman S,Bendoraite A,Sather C,Delrow J,Godwin AK,Drescher C,Huber W,Gentleman R,Tewari M

更新日期：2009-02-01 00:00:00

abstract：:A physical mapping strategy has been developed to verify and accelerate the assembly and gap closure phase of a microbial genome shotgun-sequencing project. The protocol was worked out during the ongoing Pseudomonas putida KT2440 genome project. A macro-restriction map was constructed by linking probe hybridisation of...

journal_title：Nucleic acids research

authors： Weinel C,Tümmler B,Hilbert H,Nelson KE,Kiewitz C

更新日期：2001-11-15 00:00:00

abstract：:The inducibility of the vir genes (virA, -B, -C, -D, -E, and -G) on pRiA4 was examined at the transcriptional level, and the RNA-starting sites were determined by S1-nuclease mapping and primer-extension experiments. All of these genes were inducible, while virA, -E, and -G were transcribed even under noninducing cond...

journal_title：Nucleic acids research

authors： Aoyama T,Takanami M,Oka A

更新日期：1989-11-11 00:00:00

abstract：:The infection of Pseudomonas aeruginosa by the giant bacteriophage phiKZ is resistant to host RNA polymerase (RNAP) inhibitor rifampicin. phiKZ encodes two sets of polypeptides that are distantly related to fragments of the two largest subunits of cellular multisubunit RNAPs. Polypeptides of one set are encoded by mid...

journal_title：Nucleic acids research

authors： Yakunina M,Artamonova T,Borukhov S,Makarova KS,Severinov K,Minakhin L

更新日期：2015-12-02 00:00:00

abstract：:Recruitment of RAD18 to stalled replication forks facilitates monoubiquitination of PCNA during S-phase, promoting translesion synthesis at sites of UV irradiation-induced DNA damage. In this study, we show that RAD18 is also recruited to ionizing radiation (IR)-induced sites of DNA double-strand breaks (DSBs) forming...

journal_title：Nucleic acids research

authors： Watanabe K,Iwabuchi K,Sun J,Tsuji Y,Tani T,Tokunaga K,Date T,Hashimoto M,Yamaizumi M,Tateishi S

更新日期：2009-04-01 00:00:00

abstract：:The bacterial transcription terminator, Rho, terminates transcription at half of the operons. According to the classical model derived from in vitro assays on a few terminators, Rho is recruited to the transcription elongation complex (EC) by recognizing specific sites (rut) on the nascent RNA. Here, we explored the m...

journal_title：Nucleic acids research

authors： Shashni R,Qayyum MZ,Vishalini V,Dey D,Sen R

更新日期：2014-09-01 00:00:00

abstract：:The DNA damage response is vigorously activated by DNA double-strand breaks (DSBs). The chief mobilizer of the DSB response is the ATM protein kinase. We discovered that the COP9 signalosome (CSN) is a crucial player in the DSB response and an ATM target. CSN is a protein complex that regulates the activity of cullin ...

journal_title：Nucleic acids research

authors： Meir M,Galanty Y,Kashani L,Blank M,Khosravi R,Fernández-Ávila MJ,Cruz-García A,Star A,Shochot L,Thomas Y,Garrett LJ,Chamovitz DA,Bodine DM,Kurz T,Huertas P,Ziv Y,Shiloh Y

更新日期：2015-05-19 00:00:00

abstract：:An electrophoretic system was established that resolves poly(adenosine diphosphate ribose), enzymatically synthesized polymer from NAD+, by size difference of one residue on polyacrylamide gel. The existence of a polymer of at least 65 residues was demonstrated by band counting in this system. The polymer showed a het...

journal_title：Nucleic acids research

authors： Tanaka M,Hayashi K,Sakura H,Miwa M,Matsushima T,Sugimura T

更新日期：1978-09-01 00:00:00

abstract：:Molecular beacons (MBs) have the potential to provide a powerful tool for rapid RNA detection in living cells, as well as monitoring the dynamics of RNA expression in response to external stimuli. To exploit this potential, it is necessary to distinguish true signal from background signal due to non-specific interacti...

journal_title：Nucleic acids research

authors： Rhee WJ,Bao G

更新日期：2010-05-01 00:00:00

abstract：:We have analyzed multiple recombinant DNA clones containing ribosomal RNA repeat units of the silkmoth, Bombyx mori. In combination with genomic DNA blots, analysis of these clones indicated that the rDNA repeat of B. mori is 10.8 kilobase pair in length and tandemly repeated in the genome, as reported by Manning et a...

journal_title：Nucleic acids research

authors： Lecanidou R,Eickbush TH,Kafatos FC

更新日期：1984-06-11 00:00:00