SeqBuster, a bioinformatic tool for the processing and analysis of small RNAs datasets, reveals ubiquitous miRNA modifications in human embryonic cells.

abstract：:To elucidate the general constraints imposed on the structure of the D- and T-loops in functional tRNAs, active suppressor tRNAs were selected in vivo from a combinatorial tRNA gene library in which several nucleotide positions of these loops were randomized. Analysis of the nucleotide sequences of the selected clones...

journal_title：Nucleic acids research

authors： Zagryadskaya EI,Doyon FR,Steinberg SV

更新日期：2003-07-15 00:00:00

abstract：:Pseudomonas aeruginosa is an opportunistic pathogen with a relatively large genome, and has been shown to routinely lose genomic fragments during environmental selection. However, the underlying molecular mechanisms that promote chromosomal deletion are still poorly understood. In a recent study, we showed that by del...

journal_title：Nucleic acids research

authors： Shen M,Zhang H,Shen W,Zou Z,Lu S,Li G,He X,Agnello M,Shi W,Hu F,Le S

更新日期：2018-05-18 00:00:00

abstract：:Simian cells have been transformed with SV40 origin-defective recombinant plasmids containing the tsA209 T-antigen gene. These plasmids contain deletions of either 5 or 52 nucleotides that include the BglI site at the SV40 ori, are defective for replication in COS-1 cells but retain a functional SV40 early promoter. T...

journal_title：Nucleic acids research

authors： Portela A,de la Luna S,Melero JA,Vara J,Jiménez A,Ortín J

更新日期：1985-11-25 00:00:00

abstract：:The Homeodomain Resource is a comprehensive collection of sequence, structure and genomic information on the homeodomain protein family. Available through the Resource are both full-length and domain-only sequence data, as well as X-ray and NMR structural data for proteins and protein-DNA complexes. Also available is ...

journal_title：Nucleic acids research

authors： Banerjee-Basu S,Ferlanti ES,Ryan JF,Baxevanis AD

更新日期：1999-01-01 00:00:00

abstract：:We have formed complexes of relaxed closed circular Col E1 DNA with various combinations of histones, and examined the effects of treating the complexes with nicking-closing enzyme. Germond et al (1) have shown that when a mixture of the four core histones of the nucleosome (HIA, H2B, H3 and H4) is used in such an exp...

journal_title：Nucleic acids research

authors： Camerini-Otero RD,Felsenfeld G

更新日期：1977-01-01 00:00:00

abstract：:Given the many roles proposed for Mg2+ in nucleic acids, it is essential to accurately determine their binding modes. Here, we surveyed the PDB to classify Mg2+ inner-sphere binding patterns to nucleobase imine N1/N3/N7 atoms. Among those, purine N7 atoms are considered to be the best nucleobase binding sites for diva...

journal_title：Nucleic acids research

authors： Leonarski F,D'Ascenzo L,Auffinger P

更新日期：2017-01-25 00:00:00

abstract：:Overexpression of the flap endonuclease FEN1 has been observed in a variety of cancer types and is a marker for poor prognosis. To better understand the cellular consequences of FEN1 overexpression we utilized a model of its Saccharomyces cerevisiae homolog, RAD27. In this system, we discovered that flap endonuclease ...

journal_title：Nucleic acids research

authors： Becker JR,Gallo D,Leung W,Croissant T,Thu YM,Nguyen HD,Starr TK,Brown GW,Bielinsky AK

更新日期：2018-06-20 00:00:00

abstract：:The comprehensive multiplatform genomics data generated by The Cancer Genome Atlas (TCGA) Research Network is an enabling resource for cancer research. It includes an unprecedented amount of microRNA sequence data: ~11 000 libraries across 33 cancer types. Combined with initiatives like the National Cancer Institute G...

journal_title：Nucleic acids research

authors： Chu A,Robertson G,Brooks D,Mungall AJ,Birol I,Coope R,Ma Y,Jones S,Marra MA

更新日期：2016-01-08 00:00:00

abstract：:TERC is an RNA component of telomerase. However, TERC is also ubiquitously expressed in most human terminally differentiated cells, which don't have telomerase activity. The function of TERC in these cells is largely unknown. Here, we report that TERC enhances the expression and secretion of inflammatory cytokines by ...

journal_title：Nucleic acids research

authors： Liu H,Yang Y,Ge Y,Liu J,Zhao Y

更新日期：2019-09-05 00:00:00

abstract：:We have developed an improved and rapid genomic engineering procedure for the construction of custom-designed microorganisms. This method, which can be performed in 2 days, permits restructuring of the Escherichia coli genome via markerless deletion of selected genomic regions. The deletion process was mediated by a s...

journal_title：Nucleic acids research

authors： Yu BJ,Kang KH,Lee JH,Sung BH,Kim MS,Kim SC

更新日期：2008-08-01 00:00:00

abstract：:Mouse globin messenger ribonucleoprotein (mRNP) has been isolated from reticulocyte polysomes by affinity chromatography to oligo(T)-cellulose, using a procedure modified from that of Lindberg and Sundquist. The messenger RNA and protein moieties fo the mRNP are indistinguishable from those isolated by less rapid tech...

journal_title：Nucleic acids research

authors： Burns AT,Williamson R

更新日期：1975-12-01 00:00:00

abstract：:Precursor tRNAAsp molecules, containing a 26-base 5' leader, were treated with diethylpyrocarbonate, 50% hydrazine or anhydrous hydrazine/3M NaCl and then subjected to processing by RNase P RNAs from Escherichia coli or Bacillus subtilis. Fully processed tRNAs and material not successfully cleaved by the catalytic RNA...

journal_title：Nucleic acids research

authors： Thurlow DL,Shilowski D,Marsh TL

更新日期：1991-02-25 00:00:00

abstract：:Since its discovery in 1979, left-handed Z-DNA has evolved from an in vitro curiosity to a challenging DNA structure with crucial roles in gene expression, regulation and recombination. A fundamental question that has puzzled researchers for decades is how the transition from B-DNA, the prevalent right-handed form of ...

journal_title：Nucleic acids research

authors： Moradi M,Babin V,Roland C,Sagui C

更新日期：2013-01-07 00:00:00

abstract：:We created a single cell sorting system to screen for enzyme activity in Escherichia coli producing 3,4 dihydroxy benzoate (34DHB). To do so, we engineered a transcription factor regulon controlling the expression of green fluorescent protein (GFP) for induction by 34DHB. An autoregulated transcription factor, pcaU, w...

journal_title：Nucleic acids research

authors： Jha RK,Kern TL,Fox DT,M Strauss CE

更新日期：2014-07-01 00:00:00

abstract：:We constructed several deletion mutants of Escherichia coli single-stranded DNA binding protein (EcoSSB) lacking different parts of the C-terminal region. This region of EcoSSB is composed of two parts: a glycine and proline-rich sequence of approximately 60 amino acids followed by an acidic region of the last 10 amin...

journal_title：Nucleic acids research

authors： Curth U,Genschel J,Urbanke C,Greipel J

更新日期：1996-07-15 00:00:00

abstract：:In Saccharomyces cerevisiae, RNA polymerase II assembly is probably initiated by the formation of the RPB3-RPB11 heterodimer. RPB3 is encoded by a single copy gene in the yeast, mouse and human genomes. The RPB11 gene is also unique in yeast and mouse, but in humans a gene family has been identified that potentially e...

journal_title：Nucleic acids research

authors： Benga WJ,Grandemange S,Shpakovski GV,Shematorova EK,Kedinger C,Vigneron M

更新日期：2005-06-24 00:00:00

abstract：:The interplay between aromatic stacking and hydrogen bonding in nucleobases has been investigated via high-level quantum chemical calculations. The experimentally observed stacking arrangement between consecutive bases in DNA and RNA/DNA double helices is shown to enhance their hydrogen bonding ability as opposed to g...

journal_title：Nucleic acids research

authors： Mignon P,Loverix S,Steyaert J,Geerlings P

更新日期：2005-03-23 00:00:00

abstract：:In flowering plants, RNA editing is a posttranscriptional process that converts specific C to U in organelle mRNAs. Nicotiana tabacum is an allotetraploid species derived from the progenitors of Nicotiana sylvestris and Nicotiana tomentosiformis. These Nicotiana species have been used as a model for understanding the ...

journal_title：Nucleic acids research

authors： Okuda K,Habata Y,Kobayashi Y,Shikanai T

更新日期：2008-11-01 00:00:00

abstract：:Structural changes of reconstituted SV 40 minichromosomes have been studied in relation to the salt concentration and addition of histone H1 by sedimentation and electron microscopy. Sedimentation data are represented as functions of the NaCl concentration and the Debye-Hückel electrostatic screening radius 1/alpha. T...

journal_title：Nucleic acids research

authors： Böttger M,Scherneck S,von Mickwitz CU,Fenske H,Lindigkeit R

更新日期：1979-08-10 00:00:00

abstract：:DNA glycosylases from the Fpg/Nei structural superfamily are base excision repair enzymes involved in the removal of a wide variety of mutagen and potentially lethal oxidized purines and pyrimidines. Although involved in genome stability, the recent discovery of synthetic lethal relationships between DNA glycosylases ...

journal_title：Nucleic acids research

authors： Biela A,Coste F,Culard F,Guerin M,Goffinont S,Gasteiger K,Cieśla J,Winczura A,Kazimierczuk Z,Gasparutto D,Carell T,Tudek B,Castaing B

更新日期：2014-01-01 00:00:00

abstract：:Methylation of CpG motifs in DNA is involved in the control of gene expression and in several other epigenic effects. It suppresses also the immuno-stimulation properties of bacterial or viral DNAs that contain CPGS: However, effects of methylation on the DNA structure and dynamics are not clear. Here we carried out a...

journal_title：Nucleic acids research

authors： Derreumaux S,Chaoui M,Tevanian G,Fermandjian S

更新日期：2001-06-01 00:00:00

abstract：:The HIV-1 viral infectivity factor (Vif) allows productive infection of non-permissive cells (including most natural HIV-1 targets) by counteracting the cellular cytosine deaminases APOBEC-3G (hA3G) and hA3F. The Vif-induced degradation of these restriction factors by the proteasome has been extensively studied, but l...

journal_title：Nucleic acids research

authors： Mercenne G,Bernacchi S,Richer D,Bec G,Henriet S,Paillart JC,Marquet R

更新日期：2010-01-01 00:00:00

abstract：:The major surface antigen of procyclic and epimastigote forms of Trypanosoma congolense in the tsetse fly is GARP (glutamic acid/alanine-rich protein), which is thought to be the analogue of procyclin/PARP in Trypanosoma brucei. We have studied two T.congolense GARP loci (the 4.3 and 4.4 loci) whose transcription is a...

journal_title：Nucleic acids research

authors： Graham SV,Jefferies D,Barry JD

更新日期：1996-01-15 00:00:00

abstract：:In nematodes, the 22 nucleotide (nt) spliced leader (SL) is normally encoded by a multi-copy, tandemly reiterated SL gene and is trans-spliced from SL-RNA onto the 5' end of a subset of mRNAs. We have found that the SL is also encoded at multiple (> 100) orphon genomic sites in the parasitic nematode Angiostrongylus c...

journal_title：Nucleic acids research

authors： Joshua GW,Perler FB,Wang CC

更新日期：1995-03-25 00:00:00

abstract：:Large expansions of the trinucleotide repeat GAA*TTC within the first intron of the X25 (frataxin) gene cause Friedreich's ataxia, the most common inherited ataxia. Expansion leads to reduced levels of frataxin mRNA in affected individuals. Here we show that GAA*TTC tracts, in the absence of any other frataxin gene se...

journal_title：Nucleic acids research

authors： Grabczyk E,Usdin K

更新日期：2000-07-15 00:00:00

abstract：:We have created a database of comparatively derived group I intron secondary structure diagrams. This collection currently contains a broad sampling of phylogenetically and structurally similar and diverse structures from over 200 publicly available intron sequences. As more group I introns are sequenced and added to ...

journal_title：Nucleic acids research

authors： Damberger SH,Gutell RR

更新日期：1994-09-01 00:00:00

abstract：:The major immediate early regulatory region of human cytomegalovirus (HCMV) has a complex set of DNA sites through which both cellular and viral factors coordinately regulate immediate early gene expression. In undifferentiated human teratocarcinoma (T2) cells we have previously shown that major immediate early gene e...

journal_title：Nucleic acids research

authors： Kothari S,Baillie J,Sissons JG,Sinclair JH

更新日期：1991-04-25 00:00:00

abstract：:The development of genetic switches and their integrated forms (genetic circuits) with desired specifications/functions is key for success in synthetic biology. Due to the difficulty in rational design, genetic switches and circuits with desirable specifications are mostly obtained by directed evolution. Based on a vi...

journal_title：Nucleic acids research

authors： Tashiro Y,Fukutomi H,Terakubo K,Saito K,Umeno D

更新日期：2011-02-01 00:00:00

abstract：:iSARST is a web server for efficient protein structural similarity searches. It is a multi-processor, batch-processing and integrated implementation of several structural comparison tools and two database searching methods: SARST for common structural homologs and CPSARST for homologs with circular permutations. iSARS...

journal_title：Nucleic acids research

authors： Lo WC,Lee CY,Lee CC,Lyu PC

更新日期：2009-07-01 00:00:00

abstract：:In apurinic acid, a single-stranded polydeoxyribonucleotide easily obtained upon depurination of DNA, the proton resonances arising from thymine and cytosine are readily observable in aqueous solution of 25 degrees C. Two methyl thymine resonances, centered at 1.88 ppm and separated by 0.045 ppm, are observed. We attr...

journal_title：Nucleic acids research

authors： Rahn RO,Schleich T

更新日期：1974-08-01 00:00:00