Activated levels of rRNA synthesis in fission yeast are driven by an intergenic rDNA region positioned over 2500 nucleotides upstream of the initiation site.

abstract：:The activation of a telomere maintenance mechanism is required for cancer development in humans. While most tumors achieve this by expressing the enzyme telomerase, a fraction (5-15%) employs a recombination-based mechanism termed alternative lengthening of telomeres (ALT). Here we show that loss of the single-strande...

journal_title：Nucleic acids research

authors： Grudic A,Jul-Larsen A,Haring SJ,Wold MS,Lønning PE,Bjerkvig R,Bøe SO

更新日期：2007-01-01 00:00:00

abstract：:Thiol-activated neocarzinostatin chromophore abstracts tritium from the 5', but not from the 1' or 2' positions of deoxyribose in DNA and incorporates it into a stable, non-exchangeable form. The abstracted tritium remains covalently associated with the chromophore or its degradation product after treatment with acid ...

journal_title：Nucleic acids research

authors： Kappen LS,Goldberg IH

更新日期：1985-03-11 00:00:00

abstract：:Release of RNA polymerase II (Pol II) from promoter-proximal pausing has emerged as a critical step regulating gene expression in multicellular organisms. The transition of Pol II into productive elongation requires the kinase activity of positive transcription elongation factor b (P-TEFb), which is itself under a str...

journal_title：Nucleic acids research

authors： C Quaresma AJ,Bugai A,Barboric M

更新日期：2016-09-19 00:00:00

abstract：:Ribonuclease MRP is an endonuclease, related to RNase P, which functions in eukaryotic pre-rRNA processing. In Saccharomyces cerevisiae, RNase MRP comprises an RNA subunit and ten proteins. To improve our understanding of subunit roles and enzyme architecture, we have examined protein-protein and protein-RNA interacti...

journal_title：Nucleic acids research

authors： Aspinall TV,Gordon JM,Bennett HJ,Karahalios P,Bukowski JP,Walker SC,Engelke DR,Avis JM

更新日期：2007-01-01 00:00:00

abstract：:We have determined the nucleotide sequence at the 3' end of the vesicular stomatitis virus (VSV) polymerase or L gene and compared it to that obtained from a defective interfering particle (DI) RNA generated by this virus. The latter (DI 0.50) contains a large internal deletion within this gene. The deletion begins ex...

journal_title：Nucleic acids research

authors： De BK,Perrault J

更新日期：1982-11-11 00:00:00

abstract：:Poly(pyrimidine) . poly(purine) tracts have been discovered in the 5'-flanking regions of many eucaryotic genes. They may be involved in the regulation of expression since they can be mapped to the nuclease-sensitive sites of active chromatin. We have found that poly(pyrimidine) . poly(purine) DNAs which contain 5-met...

journal_title：Nucleic acids research

authors： Lee JS,Woodsworth ML,Latimer LJ,Morgan AR

更新日期：1984-08-24 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

authors： Zhong R,Kim J,Kim HS,Kim M,Lum L,Levine B,Xiao G,White MA,Xie Y

更新日期：2014-07-01 00:00:00

abstract：:The chicken erythroid proteins binding to the histone H5 5' promoter and 3' erythroid-specific enhancer regions were identified. In DNase I footprinting and gel mobility shift experiments with immature adult erythrocyte nuclear extracts, we have demonstrated the binding of proteins to the GC-box, a high affinity Sp1 b...

journal_title：Nucleic acids research

authors： Sun JM,Penner CG,Davie JR

更新日期：1992-12-11 00:00:00

abstract：:We used 2D protein gel electrophoresis and DNA microarray technologies to systematically analyze genes under glucose repression in B:acillus subtilis. In particular, we focused on genes expressed after the shift from glycolytic to gluconeogenic at the middle logarithmic phase of growth in a nutrient sporulation medium...

journal_title：Nucleic acids research

authors： Yoshida K,Kobayashi K,Miwa Y,Kang CM,Matsunaga M,Yamaguchi H,Tojo S,Yamamoto M,Nishi R,Ogasawara N,Nakayama T,Fujita Y

更新日期：2001-02-01 00:00:00

abstract：:The linking number of DNA in minichromosomes increases by 2 turns during SV40 assembly. Changes in temperature also influence the average linking number of the total intracellular forms of SV40 DNA. When the isolated minichromosomes assembled in vivo are incubated with topoisomerase I at 33 degrees C in vitro, the lin...

journal_title：Nucleic acids research

authors： Ambrose C,McLaughlin R,Bina M

更新日期：1987-05-11 00:00:00

abstract：:We have sequenced mouse tRNA genes from two recombinant lambda phage. An 1800 bp sequence from one phage contains 3 tRNA genes, potentially encoding tRNAAsp, tRNAGly, and tRNAGlu, separated by spacer sequences of 587 bp and 436 bp, respectively. The mouse tRNA gene cluster is homologous to a rat sequence (Sekiya et al...

journal_title：Nucleic acids research

authors： Looney JE,Harding JD

更新日期：1983-12-20 00:00:00

abstract：:We report that greA expression is driven by two strong, overlapping P1 and P2 promoters. The P1 promoter is sigma(70)-dependent and P2 is sigma(E)-dependent. Two-thirds of transcripts terminate within the leader region and the remaining third comprises greA mRNA. Termination efficiency seems to be unaffected by growth...

journal_title：Nucleic acids research

authors： Potrykus K,Murphy H,Chen X,Epstein JA,Cashel M

更新日期：2010-03-01 00:00:00

abstract：:The vitamin D receptor mediates the signal of 1 alpha, 25-dihydroxyvitamin D3 by binding to vitamin D responsive elements in DNA as a homodimer or as a heterodimer composed of one vitamin D receptor subunit and one retinoid X receptor subunit. We have mapped the dimerization interfaces of the vitamin D receptor that i...

journal_title：Nucleic acids research

authors： Nishikawa J,Kitaura M,Imagawa M,Nishihara T

更新日期：1995-02-25 00:00:00

abstract：:Clustered regularly interspaced short palindromic repeats (CRISPR), in combination with CRISPR associated (cas) genes, constitute CRISPR-Cas bacterial adaptive immune systems. To generate immunity, these systems acquire short sequences of nucleic acids from foreign invaders and incorporate these into their CRISPR arra...

journal_title：Nucleic acids research

authors： Richter C,Dy RL,McKenzie RE,Watson BN,Taylor C,Chang JT,McNeil MB,Staals RH,Fineran PC

更新日期：2014-07-01 00:00:00

abstract：:To investigate the mechanisms by which oligonucleotides hybridize to target molecules, the binding of two oligodeoxynucleotide probes to RNA targets was measured over a broad range of temperatures. Mutations were then scanned across each DNA/RNA hybrid to map, at single base resolution, sequences important for hybridi...

journal_title：Nucleic acids research

authors： Majlessi M,Becker MM

更新日期：2008-05-01 00:00:00

abstract：:During DNA replication replicative polymerases move in discrete mechanical steps along the DNA template. To address how the chemical cycle is coupled to mechanical motion of the enzyme, here we use optical tweezers to study the translocation mechanism of individual bacteriophage Phi29 DNA polymerases during processive...

journal_title：Nucleic acids research

authors： Morin JA,Cao FJ,Lázaro JM,Arias-Gonzalez JR,Valpuesta JM,Carrascosa JL,Salas M,Ibarra B

更新日期：2015-04-20 00:00:00

abstract：:Translesional DNA synthesis past abasic sites proceeds with the preferential incorporation of dAMP opposite the lesion and, depending on the sequence context, one or two base deletions. High-resolution NMR spectroscopy and molecular dynamics simulations were used to determine the three-dimensional structure of a DNA h...

journal_title：Nucleic acids research

authors： Lin Z,Hung KN,Grollman AP,de los Santos C

更新日期：1998-05-15 00:00:00

abstract：:Lambda exonuclease processively degrades one strand of double-stranded DNA (dsDNA) in the 5"-3" direction. To understand the mechanism through which this enzyme generates high processivity we are analyzing the first step in the reaction, namely the interaction of lambda exonuclease with the ends of substrate DNA. Endo...

journal_title：Nucleic acids research

authors： Mitsis PG,Kwagh JG

更新日期：1999-08-01 00:00:00

abstract：:The surface accessibility of macromolecules plays a key role in modulating molecular recognition events. RNA is a complex and dynamic molecule involved in many aspects of gene expression. However, there are few experimental methods available to measure the accessible surface of RNA. Here, we investigate the accessible...

journal_title：Nucleic acids research

authors： Venditti V,Niccolai N,Butcher SE

更新日期：2008-03-01 00:00:00

abstract：:Allostery is the most direct, rapid and efficient way of regulating protein function, ranging from the control of metabolic mechanisms to signal-transduction pathways. However, an enormous amount of unsystematic allostery information has deterred scientists who could benefit from this field. Here, we present the AlloS...

journal_title：Nucleic acids research

authors： Huang Z,Zhu L,Cao Y,Wu G,Liu X,Chen Y,Wang Q,Shi T,Zhao Y,Wang Y,Li W,Li Y,Chen H,Chen G,Zhang J

更新日期：2011-01-01 00:00:00

abstract：:Eucaryotic transcription initiation by RNA polymerase II involves protein:DNA interactions during the formation of a transcription complex. In addition to RNA polymerase II there are at least five other general transcription factors necessary for initiation with the adenovirus major late promoter. One of these, TFIIA,...

journal_title：Nucleic acids research

authors： Burke C,Yu XB,Marchitelli L,Davis EA,Ackerman S

更新日期：1990-06-25 00:00:00

abstract：:The unwinding of supercoiled phi X174 RFI DNA induced by the tumorigenic (+) and non-tumorigenic (-) enantiomers of trans-7,8-dihydroxy-anti-9,10-epoxy-7,8,9,10-tetrahydrobenzo[a]pyrene (BPDE) has been investigated by agarose slab-gel and ethidium titration tube gel electrophoresis. The differences in adduct conformat...

journal_title：Nucleic acids research

authors： Xu R,Birke S,Carberry SE,Geacintov NE,Swenberg CE,Harvey RG

更新日期：1992-12-11 00:00:00

abstract：:Human foamy or spuma virus (HFV) codes for a distinct set of pol gen products. To determine the minimal requirements for the HFV enzymatic activities, defined residues of the reverse transcriptase (RT) and ribo-nuclease H (RNase H) domain of the HFV pol gene were mutated by site-specific PCR mutagenesis. The mutant ge...

journal_title：Nucleic acids research

authors： Kögel D,Aboud M,Flügel RM

更新日期：1995-07-25 00:00:00

abstract：:Daunomycin is one of the most important agents used in anticancer chemotherapy. It interacts with DNA through intercalation of its planar chromophore between successive base pairs. The effect of intercalation on structure, dynamics and energetics is the topic of a wealth of scientific studies. In the present study, we...

journal_title：Nucleic acids research

authors： Trieb M,Rauch C,Wibowo FR,Wellenzohn B,Liedl KR

更新日期：2004-09-01 00:00:00

abstract：:The nucleolus is a unique structural component of interphase nuclei where the ribosomal genes, trans-cribed by RNA polymerase I (RNA pol I), are organized. In the present study, the repair of UV-induced photolesions was investigated in the ribosomal DNA (rDNA) in relation to RNA pol I transcription. We used hamster ce...

journal_title：Nucleic acids research

authors： Balajee AS,May A,Bohr VA

更新日期：1999-06-15 00:00:00

abstract：:The novel deoxyribonucleotide alpha-[d(CpCpTpTpCpC)] and its complement beta-[d(GpGpApApGpG)] were synthesized by the phosphotriester method. 1H-NMR-NOE examination of the alpha-hexamer revealed that the cytosine and thymine bases appear to adopt anti conformations in this strand. In addition the deoxyribose of the th...

journal_title：Nucleic acids research

authors： Morvan F,Rayner B,Imbach JL,Chang DK,Lown JW

更新日期：1986-06-25 00:00:00

abstract：:In order to facilitate the direct computation of the sizes of DNA fragments separated by gel electrophoresis, we have written and evaluated programmes for the Hewlett-Packard 41C programmable calculator. The sizes estimated for DNA fragments of known length using some of these programmes were found to be more accurate...

journal_title：Nucleic acids research

authors： Gough EJ,Gough NM

更新日期：1984-01-11 00:00:00

abstract：:The study of pathogenic mitochondrial DNA mutations has, in most cases, relied on the production of transmitochondrial cybrids. Although the procedure to produce such cybrids is well established, it is laborious and cumbersome. Moreover, the mechanical enucleation procedure is inefficient and different techniques have...

journal_title：Nucleic acids research

authors： Bayona-Bafaluy MP,Manfredi G,Moraes CT

更新日期：2003-08-15 00:00:00

abstract：:The small proline-rich protein genes ( SPRRs ) code for precursors of the cornified cell envelope, and are specifically expressed during keratinocyte terminal differentiation. The single intron of SPRR2A enhanced the activity of the SPRR2A promoter in transient transfection assays. This enhancement was position depend...

journal_title：Nucleic acids research

authors： Fischer DF,van Drunen CM,Winkler GS,van de Putte P,Backendorf C

更新日期：1998-12-01 00:00:00

abstract：:Highly regulated induction systems enabling dose-dependent and reversible fine-tuning of protein expression output are beneficial for engineering complex biosynthetic pathways. To address this, we developed PhiReX, a novel red/far-red light-regulated protein expression system for use in Saccharomyces cerevisiae. PhiRe...

journal_title：Nucleic acids research

authors： Hochrein L,Machens F,Messerschmidt K,Mueller-Roeber B

更新日期：2017-09-06 00:00:00