Methylation of nucleosomal and nuclease sensitive DNA.

abstract：:I show that the recognition sequences of Type II restriction systems are correlated with the G + C content of the host bacterial DNA. Almost all restriction systems with G + C rich tetranucleotide recognition sequences are found in species with A + T rich genomes, whereas G + C rich hexanucleotide and octanucleotide r...

journal_title：Nucleic acids research

authors： McClelland M

更新日期：1988-03-25 00:00:00

abstract：:Human cytomegalovirus (HCMV) terminase is composed of subunits pUL56 (130 kDa) and pUL89 ( approximately 75 kDa), encoded by the UL56 and UL89 genes. In a recent investigation, we demonstrated that the main ATPase activity is associated with the large terminase subunit pUL56. The protein has two putative ATP-binding s...

journal_title：Nucleic acids research

authors： Scholz B,Rechter S,Drach JC,Townsend LB,Bogner E

更新日期：2003-03-01 00:00:00

abstract：:Clustered damages are formed in DNA by ionising radiation and radiomimetic anticancer agents and are thought to be biologically severe. 7,8-dihydro-8-oxoguanine (8-oxoG), a major DNA damage resulting from oxidative attack, is highly mutagenic leading to a high level of G.C-->T.A transversions if not previously excised...

journal_title：Nucleic acids research

authors： David-Cordonnier MH,Boiteux S,O'Neill P

更新日期：2001-03-01 00:00:00

abstract：:Here we employ a set of RNA Polymerase II (Pol II) activity mutants to determine the consequences of increased or decreased Pol II catalysis on gene expression in Saccharomyces cerevisiae. We find that alteration of Pol II catalytic rate, either fast or slow, leads to decreased Pol II occupancy and apparent reduction ...

journal_title：Nucleic acids research

authors： Malik I,Qiu C,Snavely T,Kaplan CD

更新日期：2017-05-05 00:00:00

abstract：:Purified 15 S globin mRNA-protein (mRNP) complexes obtained by EDTA dissociation of duck reticulocytes polyribosomes were digested with the calcium dependant Staphylococcus aureus nuclease (EC 3. 1. 4. 7.). 25% of the globin mRNA sequences were resistant to extensive nuclease digestion as determined by TCA precipitati...

journal_title：Nucleic acids research

authors： Goldenberg S,Vincent A,Scherrer K

更新日期：1979-06-25 00:00:00

abstract：:Software has been developed to assist RNA fingerprinting analysis. One program generates, from a DNA sequence data file, the oligonucleotides resulting from digestion of an RNA transcript labeled with any specified nucleotide(s). Oligonucleotides are sorted according to their position on the fingerprint. Expected mola...

journal_title：Nucleic acids research

authors： Gegenheimer P

更新日期：1988-03-11 00:00:00

abstract：:eggNOG is a public database of orthology relationships, gene evolutionary histories and functional annotations. Here, we present version 5.0, featuring a major update of the underlying genome sets, which have been expanded to 4445 representative bacteria and 168 archaea derived from 25 038 genomes, as well as 477 euka...

journal_title：Nucleic acids research

authors： Huerta-Cepas J,Szklarczyk D,Heller D,Hernández-Plaza A,Forslund SK,Cook H,Mende DR,Letunic I,Rattei T,Jensen LJ,von Mering C,Bork P

更新日期：2019-01-08 00:00:00

abstract：:Patterns in biological sequences frequently signify interesting features in the underlying molecule. Many tools exist to search for well-known patterns. Less support is available for exploratory analysis, where no well-defined patterns are known yet. PatScanUI (https://patscan.secondarymetabolites.org/) provides a hig...

journal_title：Nucleic acids research

authors： Blin K,Wohlleben W,Weber T

更新日期：2018-07-02 00:00:00

abstract：:The reported binding preference of human hnRNP protein A1 for the 3'-splice site of some introns (Swanson and Dreyfuss (1988) EMBO J. 7, 3519-3529; Mayrand and Pederson (1990) Nucleic Acids Res. 18, 3307-3318) was tested by assaying in vitro the binding of purified recombinant A1 protein (expressed in bacteria) to syn...

journal_title：Nucleic acids research

authors： Buvoli M,Cobianchi F,Biamonti G,Riva S

更新日期：1990-11-25 00:00:00

abstract：:With the improved rapid sequencing techniques, the earlier sequence of U2 RNA of Novikoff hepatoma (Shibata et al, J. Biol. Chem. 250, 3909-3920, 1975) was reanalyzed and modified. The improved sequence of U2 RNA is 188 (or 189) nucleotides long and is in register with a characterized U2 RNA pseudogene (Denison et al,...

journal_title：Nucleic acids research

authors： Reddy R,Henning D,Epstein P,Busch H

更新日期：1981-11-11 00:00:00

abstract：:Recent studies employing genome-wide approaches have provided an unprecedented view of the scope of L1 activities on structural variations in the human genome, and further reinforced the role of L1s as one of the major driving forces behind human genome evolution. The rapid identification of novel L1 elements by these...

journal_title：Nucleic acids research

authors： Xie Y,Rosser JM,Thompson TL,Boeke JD,An W

更新日期：2011-02-01 00:00:00

abstract：:Recently, a few Na+-specific RNA-cleaving DNAzymes were reported, where nucleobases are likely to play critical roles in catalysis. The NaA43 and NaH1 DNAzymes share the same 16-nt Na+-binding motif, but differ in one or two nucleotides in a small catalytic loop. Nevertheless, they display an opposite pH-dependency, i...

journal_title：Nucleic acids research

authors： Ma L,Kartik S,Liu B,Liu J

更新日期：2019-09-05 00:00:00

abstract：:Ribosomal DNA (rDNA) from Xenopus laevis contains several heterogeneities in all three transcribed spacers, as revealed by analysis of cloned and uncloned amplified rDNA from oocytes and cloned chromosomal rDNA from erythrocytes. Heterogeneities include single base changes and length variants of one to several nucleot...

journal_title：Nucleic acids research

authors： Stewart MA,Hall LM,Maden BE

更新日期：1983-02-11 00:00:00

abstract：:The ever growing number of completely sequenced prokaryotic genomes facilitates cross-species comparisons by genomic annotation algorithms. This paper introduces a new probabilistic framework for comparative genomic analysis and demonstrates its utility in the context of improving the accuracy of prokaryotic gene star...

journal_title：Nucleic acids research

authors： Walker M,Pavlovic V,Kasif S

更新日期：2002-07-15 00:00:00

abstract：:Here we advocate the use of 2-dimensional data representation in the context of the informational approach of sequence analysis (Claverie & Bougueleret (1986) Nucleic Acids Research 14, 179-196) by applying these methods to the problem of intron/exon discrimination. Two main findings are reported: i) oligonucleotide p...

journal_title：Nucleic acids research

authors： Bougueleret L,Tekaia F,Sauvaget I,Claverie JM

更新日期：1988-03-11 00:00:00

abstract：:Transcription and translation are coupled in bacteria, meaning that translation takes place co-transcriptionally. During transcription-translation, both machineries mutually affect each others' functions, which is important for regulation of gene expression. Analysis of interactions between RNA polymerase (RNAP) and t...

journal_title：Nucleic acids research

authors： Castro-Roa D,Zenkin N

更新日期：2012-03-01 00:00:00

abstract：:DNA methylation, the most intensively studied epigenetic modification, plays an important role in understanding the molecular basis of diseases. Furthermore, epigenome-wide association study (EWAS) provides a systematic approach to identify epigenetic variants underlying common diseases/phenotypes. However, there is n...

journal_title：Nucleic acids research

authors： Liu D,Zhao L,Wang Z,Zhou X,Fan X,Li Y,Xu J,Hu S,Niu M,Song X,Li Y,Zuo L,Lei C,Zhang M,Tang G,Huang M,Zhang N,Duan L,Lv H,Zhang M,Li J,Xu L,Kong F,Feng R,Jiang Y

更新日期：2019-01-08 00:00:00

abstract：:The modulation of GLI2, an oncogenic transcription factor commonly upregulated in cancer, is in many cases not due to genetic defects, suggesting dysregulation through alternative mechanisms. The identity of these molecular events remains for the most part unknown. Here, we identified TFII-I as a novel repressor of GL...

journal_title：Nucleic acids research

authors： McCleary-Wheeler AL,Paradise BD,Almada LL,Carlson AJ,Marks DL,Vrabel A,Vera RE,Sigafoos AN,Olson RL,Fernandez-Zapico ME

更新日期：2020-07-27 00:00:00

abstract：:Infection of Escherichia coli by a bacteriophage T4 regA, gene 44 double mutant leads to about a 7-fold increase in the amount of RNA ligase obtained after infection by wild-type phage. Using cells infected by the double mutant, RNA ligase was purified to homogeneity with a 20% yield. Unlike previous preparations of t...

journal_title：Nucleic acids research

authors： Higgins NP,Geballe AP,Snopek TJ,Sugino A,Cozzarelli NR

更新日期：1977-09-01 00:00:00

abstract：:We have used DNase I footprinting to examine the association kinetics of GA-, GT- and CT-containing oligonucleotides with the target sequence (GGA)5GG. (CCT)5CC. These reactions are slow yielding bimolecular association rate constants between 50 and 2000 M-1s-1. We find that GT-containing oligonucleotides bind much fa...

journal_title：Nucleic acids research

authors： Paes HM,Fox KR

更新日期：1997-08-15 00:00:00

abstract：:Three clones of non-repetitive sequences and six clones containing repetitive sequences were obtained from micronuclear DNA of Tetrahymena thermophila. All the non-repetitive and three repetitive sequences had the same organization in micro- and macronuclear DNAs as revealed by blot hybridization. On the other hand, t...

journal_title：Nucleic acids research

authors： Iwamura Y,Sakai M,Muramatsu M

更新日期：1982-07-24 00:00:00

abstract：:A feature of Haemophilus influenzae genomes is the presence of several loci containing tracts of six or more identical tetranucleotide repeat units. These repeat tracts are unstable and mediate high frequency, reversible alterations in the expression of surface antigens. This process, termed phase variation (PV), enab...

journal_title：Nucleic acids research

authors： Bayliss CD,Sweetman WA,Moxon ER

更新日期：2005-01-14 00:00:00

abstract：:The distribution of 7-methylguanine in the families of repetitive and unique sequences of rat liver chromatin DNA has been studied using the technique of DNA-DNA reassociation. Rats were injected with di[14C]methylnitrosamine and chromatin DNA was prepared 3 h later. The distribution of 7-methylguanine was found to be...

journal_title：Nucleic acids research

authors： Galbraith AI,Chapleo MR,Itzhaki RF

更新日期：1978-09-01 00:00:00

abstract：:Escherichia coli has long been regarded as a model organism in the study of codon usage bias (CUB). However, most studies in this organism regarding this topic have been computational or, when experimental, restricted to small datasets; particularly poor attention has been given to genes with low CUB. In this work, co...

journal_title：Nucleic acids research

authors： dos Reis M,Wernisch L,Savva R

更新日期：2003-12-01 00:00:00

abstract：:For sophisticated gene targeting procedures requiring two sequential selective steps to operate efficiently it is essential that the marker genes used are not prone to position effects. The double replacement gene targeting procedure, to produce mice with subtle gene alterations, is based on the use of hypoxanthine ph...

journal_title：Nucleic acids research

authors： Melton DW,Ketchen AM,Selfridge J

更新日期：1997-10-01 00:00:00

abstract：:Nucleobase analogs 5-methylisocytosine ((Me)isoC) and isoguanine (isoG) form a non-natural base pair in duplex nucleic acids with base pairing specificity orthogonal to the natural nucleobase pairs. Sequencing reactions were conducted with oligodeoxyribonucleotides (ODNs) containing d(Me)isoC and disoG using modified ...

journal_title：Nucleic acids research

authors： Ahle JD,Barr S,Chin AM,Battersby TR

更新日期：2005-06-02 00:00:00

abstract：:The 16S ribosomal RNA mutation database (16SMDB) provides a list of mutated positions in 16S ribosomal RNA from Escherichia coli and the identity of each alteration. Information provided for each mutation includes: (i) a brief description of the phenotype(s) associated with each mutation; (ii) whether a mutant phenoty...

journal_title：Nucleic acids research

authors： Triman KL

更新日期：1996-01-01 00:00:00

abstract：:The Bovine Genome Database (BGD) (http://bovinegenome.org) has been the key community bovine genomics database for more than a decade. To accommodate the increasing amount and complexity of bovine genomics data, BGD continues to advance its practices in data acquisition, curation, integration and efficient data retrie...

journal_title：Nucleic acids research

authors： Shamimuzzaman M,Le Tourneau JJ,Unni DR,Diesh CM,Triant DA,Walsh AT,Tayal A,Conant GC,Hagen DE,Elsik CG

更新日期：2020-01-08 00:00:00

abstract：:Although subtelomeric regions in humans are heterochromatic, the epigenetic nature of human telomeres remains controversial. This controversy might have been influenced by the confounding effect of subtelomeric regions and interstitial telomeric sequences (ITSs) on telomeric chromatin structure analyses. In addition, ...

journal_title：Nucleic acids research

authors： Cubiles MD,Barroso S,Vaquero-Sedas MI,Enguix A,Aguilera A,Vega-Palas MA

更新日期：2018-03-16 00:00:00

abstract：:Gene trap mutagenesis of mouse embryonic stem cells generates random loss-of-function mutations, which can be identified by a sequence tag and can often report the endogenous expression of the mutated gene. The Centre for Modeling Human Disease is performing expression- and sequence-based screens of gene trap insertio...

journal_title：Nucleic acids research

authors： To C,Epp T,Reid T,Lan Q,Yu M,Li CY,Ohishi M,Hant P,Tsao N,Casallo G,Rossant J,Osborne LR,Stanford WL

更新日期：2004-01-01 00:00:00