Ligation activity of fragmented ribozymes in frozen solution: implications for the RNA world.

abstract：:We have studied a novel class of DNA sequences that cause DNA polymerases to pause. These sequences have the central consensus Py-G-C and are not necessarily adjacent to hairpins in the DNA template. Since most consensus sequences do not cause pauses under standard conditions, additional template features must exist t...

journal_title：Nucleic acids research

authors： Mytelka DS,Chamberlin MJ

更新日期：1996-07-15 00:00:00

abstract：:The 3374 nucleotide sequence of RNA2 from the British PEBV strain SP5 has been determined. The RNA includes three open reading frames flanked by 5' and 3' noncoding regions of 509 and 480 nucleotides. The open reading frames specify coat protein, a 29.6K product homologous to the 29.1K product of TRV(TCM) RNA2 and a 2...

journal_title：Nucleic acids research

authors： Goulden MG,Lomonossoff GP,Davies JW,Wood KR

更新日期：1990-08-11 00:00:00

abstract：:Nematode mitochondria expresses two types of extremely truncated tRNAs that are specifically recognized by two distinct elongation factor Tu (EF-Tu) species named EF-Tu1 and EF-Tu2. This is unlike the canonical EF-Tu molecule that participates in the standard protein biosynthesis systems, which basically recognizes al...

journal_title：Nucleic acids research

authors： Suematsu T,Sato A,Sakurai M,Watanabe K,Ohtsuki T

更新日期：2005-08-19 00:00:00

abstract：:Bgee is a database to retrieve and compare gene expression patterns in multiple animal species, produced by integrating multiple data types (RNA-Seq, Affymetrix, in situ hybridization, and EST data). It is based exclusively on curated healthy wild-type expression data (e.g., no gene knock-out, no treatment, no disease...

journal_title：Nucleic acids research

authors： Bastian FB,Roux J,Niknejad A,Comte A,Fonseca Costa SS,de Farias TM,Moretti S,Parmentier G,de Laval VR,Rosikiewicz M,Wollbrett J,Echchiki A,Escoriza A,Gharib WH,Gonzales-Porta M,Jarosz Y,Laurenczy B,Moret P,Person E,

更新日期：2021-01-08 00:00:00

abstract：:We present the sequences of five additional human U2 pseudogenes which are very similar to the U2.13 pseudogene reported previously [Van Arsdell et al. (1981) Cell 26, 11-17]. All six U2 pseudogenes preserve the 5' end of the mature U2 snRNA sequence, and all six are flanked by nearly perfect direct repeats that diffe...

journal_title：Nucleic acids research

authors： Van Arsdell SW,Weiner AM

更新日期：1984-02-10 00:00:00

abstract：:The speed of the new DNA sequencing techniques has created a need for computer programs to handle the data produced. This paper describes simple programs designed specifically for use by people with little or no computer experience. The programs are for use on small computers and provide facilities for storage, editin...

journal_title：Nucleic acids research

authors： Staden R

更新日期：1977-11-01 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：:To generate long arrays of nucleosomes within a topologically defined chromatin domain we have assembled minichromosomes on negatively supercoiled plasmid DNA with extracts from Drosophila preblastoderm embryos. These minichromosomes are dynamic substrates for energy-dependent nucleosome remodeling machines that facil...

journal_title：Nucleic acids research

authors： Venditti P,Di Croce L,Kauer M,Blank T,Becker PB,Beato M

更新日期：1998-08-15 00:00:00

abstract：:Naturally occurring hammerhead ribozymes are produced by rolling circle replication followed by self-cleavage. This results in monomer-length catalytic RNAs which have self-complementary sequences that can occupy their trans -binding domains and potentially block their ability to cleave other RNA strands. Here we show...

journal_title：Nucleic acids research

authors： Ohmichi T,Kool ET

更新日期：2000-02-01 00:00:00

abstract：:Recent research hints at an underappreciated complexity in pre-miRNA processing and regulation. Global profiling of pre-miRNA and its potential to increase understanding of the pre-miRNA landscape is impeded by overlap with highly expressed classes of other non coding (nc) RNA. Here, we present a data set excluding th...

journal_title：Nucleic acids research

authors： Burroughs AM,Kawano M,Ando Y,Daub CO,Hayashizaki Y

更新日期：2012-02-01 00:00:00

abstract：:Dramatic improvements in ribozyme mimics have been achieved by employing the principles of small molecule catalysis to the design of macromolecular, biomimetic reagents. Ribozyme mimics derived from the ligand 2,9-dimethylphenanthroline (neocuproine) show at least 30-fold improvements in efficiency at sequence-specifi...

journal_title：Nucleic acids research

authors： Putnam WC,Daniher AT,Trawick BN,Bashkin JK

更新日期：2001-05-15 00:00:00

abstract：:The k-junction is a structural motif in RNA comprising a three-way helical junction based upon kink turn (k-turn) architecture. A computer program written to examine relative helical orientation identified the three-way junction of the Arabidopsis TPP riboswitch as an elaborated k-turn. The Escherichia coli TPP ribosw...

journal_title：Nucleic acids research

authors： Wang J,Daldrop P,Huang L,Lilley DM

更新日期：2014-04-01 00:00:00

abstract：:Restriction-free cloning (RF-cloning) is a PCR-based technology that expands on the QuikChange™ mutagenesis process originally popularized by Stratagene in the mid-1990s, and allows the insertion of essentially any sequence into any plasmid at any location. While RF-cloning is a powerful tool for the design of custom ...

journal_title：Nucleic acids research

authors： Bond SR,Naus CC

更新日期：2012-07-01 00:00:00

abstract：:The locus control region is required for high-level, position-independent expression of mammalian beta-globin genes. It is marked by five major DNase hypersensitive sites (HSs) in a 16 kb region of chromatin, and the protein-DNA complexes that form these HSs may interact in a holocomplex that carries out the full func...

journal_title：Nucleic acids research

authors： Jackson JD,Miller W,Hardison RC

更新日期：1996-11-01 00:00:00

abstract：:We describe conditions for producing uninterrupted expanded CTG repeats consisting of up to 2000 repeats using 29 DNA polymerase. Previously, generation of such repeats was hindered by CTG repeat instability in plasmid vectors maintained in Escherichia coli and poor in vitro ligation of CTG repeat concatemers due to s...

journal_title：Nucleic acids research

authors： Osborne RJ,Thornton CA

更新日期：2008-03-01 00:00:00

abstract：:A database (http://perso.curie.fr/tsoussi ) is described, in which over 1000 mutations in the human APC gene of tumors (colon cancer predominantly) are compiled from the literature. It includes both molecular information about the mutations and clinical data about the patients. Software has been designed to analyse al...

journal_title：Nucleic acids research

authors： Laurent-Puig P,Béroud C,Soussi T

更新日期：1998-01-01 00:00:00

abstract：:The 3'-untranslated region (UTR) of tobacco mosaic virus (TMV), which terminates in a tRNA-like structure, functionally substitutes for a poly(A) tail in both plant and animal cells. The addition of the TMV 3'-UTR to chimeric mRNA constructs increases their expression up to 100-fold, increasing both translational effi...

journal_title：Nucleic acids research

authors： Gallie DR,Feder JN,Schimke RT,Walbot V

更新日期：1991-09-25 00:00:00

abstract：:Homologous recombination (HR) is a highly accurate mechanism of DNA repair that can be exploited for homology-directed gene targeting. Since in most cell types HR occurs very infrequently (approximately 10(-6) to 10(-8)), its practical application has been largely restricted to specific experimental systems that allow...

journal_title：Nucleic acids research

authors： van Nierop GP,de Vries AA,Holkers M,Vrijsen KR,Gonçalves MA

更新日期：2009-09-01 00:00:00

abstract：:A new E. coli strain has been constructed that contains the dinD1::LacZ+ fusion and is deficient in methylation-dependent restriction systems (McrA-, McrBC-, Mrr-). This strain has been used to clone restriction endonuclease genes directly into E. coli. When E. coli cells are not fully protected by the cognate methyla...

journal_title：Nucleic acids research

authors： Fomenkov A,Xiao JP,Dila D,Raleigh E,Xu SY

更新日期：1994-06-25 00:00:00

abstract：:Next-generation sequencing allows now the sequencing of small RNA molecules and the estimation of their expression levels. Consequently, there will be a high demand of bioinformatics tools to cope with the several gigabytes of sequence data generated in each single deep-sequencing experiment. Given this scene, we deve...

journal_title：Nucleic acids research

authors： Hackenberg M,Sturm M,Langenberger D,Falcón-Pérez JM,Aransay AM

更新日期：2009-07-01 00:00:00

abstract：:Ornithine decarboxylase (ODC) expression is important for proliferation and is elevated in many tumor cells. We previously showed that Sp1 is a major positive regulator of ODC transcription. In this paper we have investigated transcriptional regulation of rat ODC by the closely related factor Sp3. While over-expressio...

journal_title：Nucleic acids research

authors： Kumar AP,Butler AP

更新日期：1997-05-15 00:00:00

abstract：:The effect of mutations in the highly conserved Y-GG/A motif of B-type DNA polymerases was studied in the DNA polymerase from the hyperthermophilic euryarchaeon Thermococcus aggregans. This motif plays a critical role in the balance between the synthesis and degradation of the DNA chain. Five different mutations of th...

journal_title：Nucleic acids research

authors： Böhlke K,Pisani FM,Vorgias CE,Frey B,Sobek H,Rossi M,Antranikian G

更新日期：2000-10-15 00:00:00

abstract：:We present RADAR--a rigorously annotated database of A-to-I RNA editing (available at http://RNAedit.com). The identification of A-to-I RNA editing sites has been dramatically accelerated in the past few years by high-throughput RNA sequencing studies. RADAR includes a comprehensive collection of A-to-I RNA editing si...

journal_title：Nucleic acids research

authors： Ramaswami G,Li JB

更新日期：2014-01-01 00:00:00

abstract：:Segments of SV40 DNA having homologous overlapping termini recombine to produce viable genomes in monkey cells. Frequencies of recombination on either side of a deletion marker are non-random; replication and palindromes do not appear to be essential. Since recombination involves host enzymes, a suitable system has be...

journal_title：Nucleic acids research

authors： Upcroft P,Carter B,Kidson C

更新日期：1980-06-25 00:00:00

abstract：:As large-scale re-sequencing of genomes reveals many protein mutations, especially in human cancer tissues, prediction of their likely functional impact becomes important practical goal. Here, we introduce a new functional impact score (FIS) for amino acid residue changes using evolutionary conservation patterns. The ...

journal_title：Nucleic acids research

authors： Reva B,Antipin Y,Sander C

更新日期：2011-09-01 00:00:00

abstract：:DNA from healthy Malaysian newborns was studied on gene maps after digestion with different restriction endonucleases. Of 65 newborns, two were found to be carriers of two different variants of triplicated alpha-globin loci. In variant no. 1, found in an Malay, the three alpha-globin genes are in an elongated DNA frag...

journal_title：Nucleic acids research

authors： Lie-Injo LE,Herrera AR,Kan YW

更新日期：1981-08-11 00:00:00

abstract：:Transcription driven by the proviral promoter of the Human T-cell Leukemia Virus type I (HTLV-I) is tightly regulated by the Tax1 transactivator. This viral protein potently induces the enhancer activity of a 21 bp motif repeated three times in the promoter. We have previously shown that this induction results from th...

journal_title：Nucleic acids research

authors： Lombard-Platet G,Jalinot P

更新日期：1993-08-25 00:00:00

abstract：:MicroRNAs (miRNAs) are approximately 22 nucleotide (nt) long and play important roles in post-transcriptional regulation in both plants and animals. In animals, precursor (pre-) miRNAs are ∼70 nt hairpins produced by Drosha cleavage of long primary (pri-) miRNAs in the nucleus. Exportin-5 (XPO5) transports pre-miRNAs ...

journal_title：Nucleic acids research

authors： Sheng P,Fields C,Aadland K,Wei T,Kolaczkowski O,Gu T,Kolaczkowski B,Xie M

更新日期：2018-06-20 00:00:00

abstract：:Targeted gene silencing by RNA interference allows the study of gene function in plants and animals. In cell culture and small animal models, genetic screens can be performed--even tissue-specifically in Drosophila--with genome-wide RNAi libraries. However, a major problem with the use of RNAi approaches is the unavoi...

journal_title：Nucleic acids research

authors： Schulz JG,David G,Hassan BA

更新日期：2009-07-01 00:00:00

abstract：:Reactive oxygen species (ROS) have been implicated as the cause of cumulative damage to DNA, proteins and lipids that can ultimately result in cell death. A common problem when measuring oxidative DNA damage has been the introduction of modifications in the native state of the molecule by many DNA isolation methods. W...

journal_title：Nucleic acids research

authors： Milano J,Day BJ

更新日期：2000-02-15 00:00:00