A long stringent sequence signal for programmed chromosome breakage in Tetrahymena thermophila.

abstract：:In synthetic circuits, CRISPR-Cas systems have been used effectively for endpoint changes from an initial state to a final state, such as in logic gates. Here, we use deactivated Cas9 (dCas9) and deactivated Cas12a (dCas12a) to construct dynamic RNA ring oscillators that cycle continuously between states over time in ...

journal_title：Nucleic acids research

authors： Kuo J,Yuan R,Sánchez C,Paulsson J,Silver PA

更新日期：2020-08-20 00:00:00

abstract：:In spermidine-condensed calf thymus DNA preparations, torus-shaped condensates were shown by transmission electron microscopy to exist under the hydrated conditions of the freeze fracture experiment. Using extremely low Pt metal deposition levels (9 A Pt/C) high-contrast replicas of the spermidine-DNA toruses were obt...

journal_title：Nucleic acids research

authors： Marx KA,Ruben GC

更新日期：1983-03-25 00:00:00

abstract：:The paper describes an improved method for the synthesis of oligodeoxyribonucleotides using phosphoramidite chemistry. Our procedure relies on novel phosphoramidite intermediates, the deoxyribonucleoside-3'-morpholine-methoxyphosphins. These compounds are extremely stable and can be purified readily. Condensation reac...

journal_title：Nucleic acids research

authors： Dörper T,Winnacker EL

更新日期：1983-05-11 00:00:00

abstract：:Restriction fragment patterns of G+C-rich satellites of sheep and goat DNA were compared. The 1,712 g/cm3 satellites of both species appear homologous, consisting of repeats 760 base pairs long and showing coincidence of position of primary+ EcoRI, BamHI and most BspRI restriction target sites. The EcoRI and BamHI end...

journal_title：Nucleic acids research

authors： Forstová J,Votavová H,Guttmann T,Pivec L,Doskocil J

更新日期：1979-01-01 00:00:00

abstract：:Functional crosstalk between histone modifications and chromatin remodeling has emerged as a key regulatory mode of transcriptional control during cell fate decisions, but the underlying mechanisms are not fully understood. Here we discover an HRP2-DPF3a-BAF epigenetic pathway that coordinates methylated histone H3 ly...

journal_title：Nucleic acids research

authors： Zhu X,Lan B,Yi X,He C,Dang L,Zhou X,Lu Y,Sun Y,Liu Z,Bai X,Zhang K,Li B,Li MJ,Chen Y,Zhang L

更新日期：2020-07-09 00:00:00

abstract：:In most eukaryotes, genetic exchange between paired homologs occurs in the context of a tripartite proteinaceous structure called the synaptonemal complex (SC). Genetic analyses have revealed that the genes encoding SC proteins are vital for meiotic chromosome pairing and recombination. However, the number, nature and...

journal_title：Nucleic acids research

authors： Anuradha S,Muniyappa K

更新日期：2004-04-28 00:00:00

abstract：:Ribonuclease III of Escherichia coli is prominently involved in the endoribonucleolytic processing of cell and viral-encoded RNAs. Towards the goal of defining the RNA sequence and structural elements that establish specific catalytic cleavage of RNase III processing signals, this report demonstrates that a 60 nucleot...

journal_title：Nucleic acids research

authors： Chelladurai BS,Li H,Nicholson AW

更新日期：1991-04-25 00:00:00

abstract：:Several modified nucleosides were introduced during in vitro RNA synthesis into a pre-tRNA(Ser). The pre-tRNAs were used as substrates for RNase P enzymes. No effects were observed with biotin-8-ATP or [alpha-S]-GPT, whereas with m7GTP, the cleavage reaction was completely inhibited. Analysis of pre-tRNAs which contai...

journal_title：Nucleic acids research

authors： Kahle D,Wehmeyer U,Char S,Krupp G

更新日期：1990-02-25 00:00:00

abstract：:The interaction of several synthetic analogues of d-ApA with Poly U and Poly dT was examined to explore the effects of substituents at phosphorus on binding properties of oligonucleotides. These analogues contained a bulky, lipophilic group (2,2,2-trichloroethoxy or 2,2,2-trichloro-1,1-dimethylethoxy) a small, uncharg...

journal_title：Nucleic acids research

authors： Letsinger RL,Bach SA,Eadie JS

更新日期：1986-04-25 00:00:00

abstract：:Direct visualization of DNA and proteins allows researchers to investigate DNA-protein interactions with great detail. Much progress has been made in this area as a result of increasingly sensitive single-molecule fluorescence techniques. At the same time, methods that control the conformation of DNA molecules have be...

journal_title：Nucleic acids research

authors： van Mameren J,Peterman EJ,Wuite GJ

更新日期：2008-08-01 00:00:00

abstract：:The complete nucleotide sequences of the various precursor 5S RNA species occurring in Bacillus licheniformis have been elucidated. The B. licheniformis precursors contain a 5'-precursor-specific segment of 95 nucleotides which is four times as long as the corresponding segment of the p5S RNAs from the closely related...

journal_title：Nucleic acids research

authors： Stiekema WJ,de Leede-Twente R,Raué HA,Planta RJ

更新日期：1980-10-10 00:00:00

abstract：:Partial acid cleavage, comparative HPLC tryptic peptide mapping and amino acid sequencing of the C1 and C2 proteins of HeLa heterogeneous nuclear ribonucleoprotein (hnRNP) particles demonstrate that proteins C1 and C2 differ in primary structure by the presence of a 13 amino acid insert sequence in C2. This C2 insert ...

journal_title：Nucleic acids research

authors： Merrill BM,Barnett SF,LeStourgeon WM,Williams KR

更新日期：1989-11-11 00:00:00

abstract：:We updated the plant transcription factor (TF) database to version 2.0 (PlantTFDB 2.0, http://planttfdb.cbi.pku.edu.cn) which contains 53,319 putative TFs predicted from 49 species. We made detailed annotation including general information, domain feature, gene ontology, expression pattern and ortholog groups, as well...

journal_title：Nucleic acids research

authors： Zhang H,Jin J,Tang L,Zhao Y,Gu X,Gao G,Luo J

更新日期：2011-01-01 00:00:00

abstract：:Non-homologous DNA end joining (NHEJ) is considered the major pathway of double-strand break (DSB) repair in mammalian cells and depends, among other things, on the DNA end-binding Ku70/80 hetero-dimer. To investigate the function of Ku in NHEJ we have compared the ability of cell-free extracts from wild-type CHO-K1 c...

journal_title：Nucleic acids research

authors： Feldmann E,Schmiemann V,Goedecke W,Reichenberger S,Pfeiffer P

更新日期：2000-07-01 00:00:00

abstract：:Scanning tunneling microscopy (STM) reveals nanometer scale details of hydrated DNA but the interpretation of the images is controversial because of substrate artifacts and the lack of a theory for image contrast. We demonstrate that we have overcome these problems by identifying five DNA samples by their STM images a...

journal_title：Nucleic acids research

authors： Jeffrey AM,Jing TW,DeRose JA,Vaught A,Rekesh D,Lu FX,Lindsay SM

更新日期：1993-12-25 00:00:00

abstract：:N-(guanosin-8-yl) acetylaminofluorene (Guo-AAF) was prepared by the reaction of N-acetoxy-N-2-acetylaminofluorene (AAAF) and guanosine. Antibodies to Guo-AAF were elicited in rabbits by immunization with bovine serum albumin-Guo-AAF conjugate. The antibodies were purified by affinity chromatography on a Sepharose-Guo-...

journal_title：Nucleic acids research

authors： Guigues M,Leng M

更新日期：1979-02-01 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

authors： Seurinck J,Van de Voorde A,Van Montagu M

更新日期：1983-07-11 00:00:00

abstract：:Several different computational problems have been solved using DNA as a medium. However, the DNA computations that have so far been carried out have examined a relatively small number of possible sequence solutions in order to find correct sequence solutions. We have encoded a search algorithm in DNA that required th...

journal_title：Nucleic acids research

authors： James KD,Boles AR,Henckel D,Ellington AD

更新日期：1998-11-15 00:00:00

abstract：:An improved method was developed for microdissection and cloning of metaphase as well as pachytene chromosomes. The protocol incorporates efficient ligation of chromosomal DNA with linker adaptors, abolishment of microcloning steps and the reduction of micromanipulation. The threshold for amplifying genomic DNA templa...

journal_title：Nucleic acids research

authors： Ponelies N,Stein N,Weber G

更新日期：1997-09-01 00:00:00

abstract：:The topoisomerase I (TOP1) inhibitor irinotecan triggers cell death by trapping TOP1 on DNA, generating cytotoxic protein-linked DNA breaks (PDBs). Despite its wide application in a variety of solid tumors, the mechanisms of cancer cell resistance to irinotecan remains poorly understood. Here, we generated colorectal ...

journal_title：Nucleic acids research

authors： Meisenberg C,Ashour ME,El-Shafie L,Liao C,Hodgson A,Pilborough A,Khurram SA,Downs JA,Ward SE,El-Khamisy SF

更新日期：2017-02-17 00:00:00

abstract：:Vitamin C breaks DNA only in the presence of oxygen. Superoxide dismutase has no effect on the reaction but catalase suppresses it. Superoxide also gives rise to breaks in DNA suppressible by both superoxide dismutase and catalase. The hydroxyl radical seems to be the agent responsible for strand cleavage itself. ...

journal_title：Nucleic acids research

authors： Morgan AR,Cone RL,Elgert TM

更新日期：1976-05-01 00:00:00

abstract：:Gramene (http://www.gramene.org) is a knowledgebase for comparative functional analysis in major crops and model plant species. The current release, #54, includes over 1.7 million genes from 44 reference genomes, most of which were organized into 62,367 gene families through orthologous and paralogous gene classificat...

journal_title：Nucleic acids research

authors： Tello-Ruiz MK,Naithani S,Stein JC,Gupta P,Campbell M,Olson A,Wei S,Preece J,Geniza MJ,Jiao Y,Lee YK,Wang B,Mulvaney J,Chougule K,Elser J,Al-Bader N,Kumari S,Thomason J,Kumar V,Bolser DM,Naamati G,Tapanari E,Fo

更新日期：2018-01-04 00:00:00

abstract：:The MIPS Fusarium graminearum Genome Database (FGDB) is a comprehensive genome database on one of the most devastating fungal plant pathogens of wheat and barley. FGDB provides information on two gene sets independently derived by automated annotation of the F.graminearum genome sequence. A complete manually revised g...

journal_title：Nucleic acids research

authors： Güldener U,Mannhaupt G,Münsterkötter M,Haase D,Oesterheld M,Stümpflen V,Mewes HW,Adam G

更新日期：2006-01-01 00:00:00

abstract：:Sas2p is a histone acetyltransferase implicated in the regulation of transcriptional silencing, and ORC is the six-subunit origin recognition complex involved in the initiation of DNA replication and the establishment of transcriptionally silent chromatin by silencers in yeast. We show here that SAS2 deletion (sas2Del...

journal_title：Nucleic acids research

authors： Zou Y,Bi X

更新日期：2008-09-01 00:00:00

abstract：:The Genomes On Line Database (GOLD) is a web resource for comprehensive access to information regarding complete and ongoing genome sequencing projects worldwide. The database currently incorporates information on over 1500 sequencing projects, of which 294 have been completed and the data deposited in the public data...

journal_title：Nucleic acids research

authors： Liolios K,Tavernarakis N,Hugenholtz P,Kyrpides NC

更新日期：2006-01-01 00:00:00

abstract：:We have characterized triple-helix-mediated inhibition of an artificial bacteriophage promoter with respect to relief of inhibition by incoming RNA polymerases that initiate upstream or downstream from the operator sequence. Whereas oligonucleotide-directed triple-helix formation inhibits the test promoter, promoter a...

journal_title：Nucleic acids research

authors： Skoog JU,Maher LJ 3rd

更新日期：1993-08-25 00:00:00

abstract：:Nucleotide incorporation opposite an oxidative form of adenine, 2-hydroxyadenine (2-OH-Ade) was investigated. When a primed template with 2-OH-Ade was treated with an exonuclease-deficient Klenow fragment of Escherichia coli DNA polymerase I (KFexo-), recombinant rat DNA polymerase beta (pol beta) or calf thymus DNA p...

journal_title：Nucleic acids research

authors： Kamiya H,Ueda T,Ohgi T,Matsukage A,Kasai H

更新日期：1995-03-11 00:00:00

abstract：:The hexanucleoside pentaphosphate d(m5CpGpm5CpGpm5CpG) has been studied in solution by ultra-violet absorption, circular dichroism and 31P nuclear magnetic resonance under various experimental conditions. In 0.2 M NaClO4 at low temperature, an hexamer duplex is formed which has a B or B-like conformation. As the salt ...

journal_title：Nucleic acids research

authors： Hartmann B,Thuong NT,Pouyet J,Ptak M,Leng M

更新日期：1983-07-11 00:00:00

abstract：:A search of sequence information in the GenBank files shows that tracts of 15-30 contiguous purines are greatly overrepresented in all eukaryotic species examined, ranging from yeast to human. Such an overabundance does not occur in prokaryotic sequences. The large increase in the number of oligopurine tracts cannot b...

journal_title：Nucleic acids research

authors： Behe MJ

更新日期：1995-02-25 00:00:00

abstract：:dITP may be generated from dATP by a slow, nonenzymatic hydrolysis. While [3H]dITP was degraded rapidly to [3H]deoxyinosine by HeLa cell nuclear extracts, no net degradation of [3H]dITP was observed in the presence of physiological concentrations of ATP, apparently because the extract contained deoxynucleoside diphosp...

journal_title：Nucleic acids research

authors： Myrnes B,Guddal PH,Krokan H

更新日期：1982-06-25 00:00:00