Promoter selectivity of the stationary-phase forms of Escherichia coli RNA polymerase and conversion in vitro of the S1 form enzyme into a log-phase enzyme-like form.

abstract：:Allele-specific protospacer adjacent motif (asPAM)-positioning SNPs and CRISPRs are valuable resources for gene therapy of dominant disorders. However, one technical hurdle is to identify the haplotype comprising the disease-causing allele and the distal asPAM SNPs. Here, we describe a novel CRISPR-based method (CRISP...

journal_title：Nucleic acids research

authors： Yu J,Xiang X,Huang J,Liang X,Pan X,Dong Z,Petersen TS,Qu K,Yang L,Zhao X,Li S,Zheng T,Xu Z,Liu C,Han P,Xu F,Yang H,Liu X,Zhang X,Bolund L,Luo Y,Lin L

更新日期：2020-03-18 00:00:00

abstract：:The helical twist of poly d(A-s4T) was determined from the periodicity of the cleavage patterns of the double stranded polydeoxynucleotide adsorbed on calcium phosphate and found to be 14 bp per turn. Both cleavage patterns and 31P NMR spectra indicate a mononucleotide structure rather than an alternating B DNA like p...

journal_title：Nucleic acids research

authors： Bökemeier W,Lezius AG

更新日期：1986-03-11 00:00:00

abstract：:Many enzymes acting on DNA require Mg(2+) ions not only for catalysis but also to bind DNA. Binding studies often employ Ca(2+) as a substitute for Mg(2+), to promote DNA binding whilst disallowing catalysis. The SfiI endonuclease requires divalent metal ions to bind DNA but, in contrast to many systems where Ca(2+) m...

journal_title：Nucleic acids research

authors： Bellamy SR,Kovacheva YS,Zulkipli IH,Halford SE

更新日期：2009-09-01 00:00:00

abstract：:We have determined the nucleotide sequence of a 7.5 kb full-size gypsy element from Drosophila subobscura strain H-271. Comparative analyses were carried out on the sequence and molecular structure of gypsy elements of D.subobscura (gypsyDs), D.melanogaster (gypsyDm) and D.virilis (gypsyDv). The three elements show a ...

journal_title：Nucleic acids research

authors： Alberola TM,de Frutos R

更新日期：1996-03-01 00:00:00

abstract：:Multicellular organismal development is controlled by a complex network of transcription factors, promoters and enhancers. Although reliable computational and experimental methods exist for enhancer detection, prediction of their target genes remains a major challenge. On the basis of available literature and ChIP-seq...

journal_title：Nucleic acids research

authors： Rödelsperger C,Guo G,Kolanczyk M,Pletschacher A,Köhler S,Bauer S,Schulz MH,Robinson PN

更新日期：2011-04-01 00:00:00

abstract：:X-linked agammaglobulinemia (XLA) is an immunodeficiency caused by mutations in the gene coding for Bruton's agammaglobulinemia tyrosine kinase (BTK). A database (BTKbase) of BTK mutations has been compiled and the recent update lists 368 entries from 318 unrelated families showing 228 unique molecular events. In addi...

journal_title：Nucleic acids research

authors： Vihinen M,Belohradsky BH,Haire RN,Holinski-Feder E,Kwan SP,Lappalainen I,Lehväslaiho H,Lester T,Meindl A,Ochs HD,Ollila J,Vorechovsky I,Weiss M,Smith CI

更新日期：1997-01-01 00:00:00

abstract：:The nucleotide sequence of a region located on the adenovirus type 5 genome between coordinates 59.9 and 62.5 has been determined. This region comprises the 3'-termini of mRNAs coding for the hexon and the DNA binding protein. The sequence reveals the presence of an open reading frame in r-strand transcripts downstrea...

journal_title：Nucleic acids research

authors： Kruijer W,van Schaik FM,Sussenbach JS

更新日期：1980-12-20 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：:Chlorella virus DNA ligase is the smallest eukaryotic ATP-dependent DNA ligase known; it suffices for yeast cell growth in lieu of the essential yeast DNA ligase Cdc9. The Chlorella virus ligase-adenylate intermediate has an intrinsic nick sensing function and its DNA footprint extends 8-9 nt on the 3'-hydroxyl (3'-OH...

journal_title：Nucleic acids research

authors： Odell M,Malinina L,Sriskanda V,Teplova M,Shuman S

更新日期：2003-09-01 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：:NetMHC-3.0 is trained on a large number of quantitative peptide data using both affinity data from the Immune Epitope Database and Analysis Resource (IEDB) and elution data from SYFPEITHI. The method generates high-accuracy predictions of major histocompatibility complex (MHC): peptide binding. The predictions are bas...

journal_title：Nucleic acids research

authors： Lundegaard C,Lamberth K,Harndahl M,Buus S,Lund O,Nielsen M

更新日期：2008-07-01 00:00:00

abstract：:Transcription factor IIIA (TFIIIA) is specifically required for transcription of 5S rRNA genes and is the archetypal C2H2 zinc finger protein. All known vertebrate TFIIIAs have a similar organization: nine zinc fingers, followed by a C-terminal domain of unknown structure. The zinc fingers of Saccharomyces cerevisiae ...

journal_title：Nucleic acids research

authors： Schulman DB,Setzer DR

更新日期：2002-07-01 00:00:00

abstract：:In an RNase III-deficient strain of E. coli 23S pre-rRNA accumulates unprocessed in 50S ribosomes and in polysomes. These ribosomes provide a substrate for the analysis of rRNA maturation in vitro. S1 nuclease protection analysis of the products obtained in in vitro processing reactions demonstrates that 23S rRNA proc...

journal_title：Nucleic acids research

authors： Sirdeshmukh R,Schlessinger D

更新日期：1985-07-25 00:00:00

abstract：:Differential display of mRNA is a simple, sensitive and powerful method to identify differentially expressed gene fragments. The main drawback of differential display is the lack of reproducibility and the inability to read and compare complex gels. This issue results from employing unoptimized primer combinations and...

journal_title：Nucleic acids research

authors： Malhotra K,Foltz L,Mahoney WC,Schueler PA

更新日期：1998-02-01 00:00:00

abstract：:Retroviral particles contain a dimeric RNA genome, which serves as template for the generation of double-stranded DNA by reverse transcription. Transfer between RNA strands during DNA synthesis is governed by both sequence similarity between templates and structural features of the dimeric RNA. A kissing hairpin, beli...

journal_title：Nucleic acids research

authors： Mikkelsen JG,Rasmussen SV,Pedersen FS

更新日期：2004-01-09 00:00:00

abstract：:Cloned coding sequences for rat and human ornithine transcarbamylase (OTC) were obtained by screening a rat and a human cDNA library respectively with a synthetic oligonucleotide corresponding to 27 bases of the rat sequence. These clones, 1100 bp long for the rat clone and 1300 bp for the human, contain approximately...

journal_title：Nucleic acids research

authors： Davies KE,Briand P,Ionasescu V,Ionasescu G,Williamson R,Brown C,Cavard C,Cathelineau L

更新日期：1985-01-11 00:00:00

abstract：:We investigated how Escherichia coli ClpXP targets the helicase-nuclease (HsdR) subunit of the bacterial Type I restriction-modification enzyme EcoKI during restriction alleviation (RA). RA is a temporary reduction in endonuclease activity that occurs when Type I enzymes bind unmodified recognition sites on the host g...

journal_title：Nucleic acids research

authors： Simons M,Diffin FM,Szczelkun MD

更新日期：2014-10-29 00:00:00

abstract：:Affymetrix has recently developed whole-transcript GeneChips-'Gene' and 'Exon' arrays-which interrogate exons along the length of each gene. Although each probe on these arrays is intended to hybridize perfectly to only one transcriptional target, many probes match multiple transcripts located in different parts of th...

journal_title：Nucleic acids research

authors： Turro E,Lewin A,Rose A,Dallman MJ,Richardson S

更新日期：2010-01-01 00:00:00

abstract：:Upon infection of Escherichia coli by bacteriophage Qβ, the virus-encoded β-subunit recruits host translation elongation factors EF-Tu and EF-Ts and ribosomal protein S1 to form the Qβ replicase holoenzyme complex, which is responsible for amplifying the Qβ (+)-RNA genome. Here, we use X-ray crystallography, NMR spect...

journal_title：Nucleic acids research

authors： Gytz H,Mohr D,Seweryn P,Yoshimura Y,Kutlubaeva Z,Dolman F,Chelchessa B,Chetverin AB,Mulder FA,Brodersen DE,Knudsen CR

更新日期：2015-12-15 00:00:00

abstract：:The transactivator responsive region (TAR) present in the 5'-NTR of the HIV-1 genome represents a potential target for antiretroviral intervention and a model system for the development of specific inhibitors of RNA-protein interaction. Earlier, we have shown that an anti-TAR polyamide nucleotide analog (PNA(TAR)) con...

journal_title：Nucleic acids research

authors： Tripathi S,Chaubey B,Ganguly S,Harris D,Casale RA,Pandey VN

更新日期：2005-08-02 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：:We have studied the ability of the wt1 tumor suppressor gene product to repress different classes of activation domains previously shown to stimulate the initiation and elongation steps of RNA polymerase II transcription in vivo. Repression assays revealed that WT1 represses all three classes of activation domains: Sp...

journal_title：Nucleic acids research

authors： Lee TH,Moffett P,Pelletier J

更新日期：1999-07-15 00:00:00

abstract：:Vaccinia virus DNA topoisomerase catalyzes resolution of synthetic Holliday junctions in vitro. The mechanism entails concerted transesterifications at two recognition sites, 5'-CCCTT/, that are opposed within a partially mobile four-way junction. Efficient resolution occurs on a junction with a 10 bp segment of branc...

journal_title：Nucleic acids research

authors： Sekiguchi J,Cheng C,Shuman S

更新日期：2000-07-15 00:00:00

abstract：:Expressed polycistronic microRNA (miR) cassettes have useful properties that can be utilized for RNA interference (RNAi)-based gene silencing. To advance their application we generated modular trimeric anti-hepatitis B virus (HBV) Pol II cassettes encoding primary (pri)-miR-31-derived shuttles that target three differ...

journal_title：Nucleic acids research

authors： Ely A,Naidoo T,Arbuthnot P

更新日期：2009-07-01 00:00:00

abstract：:A terminator of transcription with bidirectional activity has been located between the translation termination codons of the genes tetA and orfL on Tn10. These genes are transcribed towards each other. Each orientation of the intervening sequence is shown to reduce the expression of the lacZ and galK genes when cloned...

journal_title：Nucleic acids research

authors： Schollmeier K,Gärtner D,Hillen W

更新日期：1985-06-25 00:00:00

abstract：:We have identified cDNAs encoding Mel-N1, the mouse homologue of a human nervous system-specific RNA-binding protein, Hel-N1. Two major mRNA transcripts of Mel-N1 were detected predominantly in the adult mouse brain by Northern blot analysis. To gain insight into the RNA binding specificity of Mel-N1, we performed ite...

journal_title：Nucleic acids research

authors： Abe R,Yamamoto K,Sakamoto H

更新日期：1996-06-01 00:00:00

abstract：:The Gibbs Motif Sampler is a software package for locating common elements in collections of biopolymer sequences. In this paper we describe a new variation of the Gibbs Motif Sampler, the Gibbs Recursive Sampler, which has been developed specifically for locating multiple transcription factor binding sites for multip...

journal_title：Nucleic acids research

authors： Thompson W,Rouchka EC,Lawrence CE

更新日期：2003-07-01 00:00:00

abstract：:Here we examined the role of cellular vitamin C in genotoxicity of carcinogenic chromium(VI) that requires reduction to induce DNA damage. In the presence of ascorbate (Asc), low 0.2-2 microM doses of Cr(VI) caused 10-15 times more chromosomal breakage in primary human bronchial epithelial cells or lung fibroblasts. D...

journal_title：Nucleic acids research

authors： Reynolds M,Stoddard L,Bespalov I,Zhitkovich A

更新日期：2007-01-01 00:00:00

abstract：:Murine embryonic stem (ES) cells are commonly cultured on feeder layers of primary murine embryonic fibroblasts (MEFs). Because gene targeting experiments often involve sequential selection for multiple-drug resistance in single ES cell lines, we have developed a new mouse strain which represents an economical donor f...

journal_title：Nucleic acids research

authors： Tucker KL,Wang Y,Dausman J,Jaenisch R

更新日期：1997-09-15 00:00:00

abstract：:The chloroplast ribosomal protein CS1 is an essential component of the plastids translational machinery involved in translation initiation. Southern analysis suggests that the corresponding nuclear gene is present in one copy in the spinach genome. We have isolated and sequenced the gene (rps1) to study its expression...

journal_title：Nucleic acids research

authors： Franzetti B,Zhou DX,Mache R

更新日期：1992-08-25 00:00:00