In vitro site-directed mutagenesis with synthetic DNA oligonucleotides yields unexpected deletions and insertions at high frequency.

abstract：:Onconase, a cytotoxic ribonuclease from Rana pipiens, possesses pyroglutamate (Pyr) at the N-terminus and has a substrate preference for uridine-guanine (UG). To identify residues responsible for onconase's cytotoxicity, we cloned the rpr gene from genomic DNA and expressed it in Escherichia coli BL21(DE3). The recomb...

journal_title：Nucleic acids research

authors： Liao YD,Wang SC,Leu YJ,Wang CF,Chang ST,Hong YT,Pan YR,Chen C

更新日期：2003-09-15 00:00:00

abstract：:This review presents detailed information about the structure of triplet repeat RNA and addresses the simple sequence repeats of normal and expanded lengths in the context of the physiological and pathogenic roles played in human cells. First, we discuss the occurrence and frequency of various trinucleotide repeats in...

journal_title：Nucleic acids research

authors： Krzyzosiak WJ,Sobczak K,Wojciechowska M,Fiszer A,Mykowska A,Kozlowski P

更新日期：2012-01-01 00:00:00

abstract：:A novel expression system was established that allows expression and propagation of the human hepatitis B virus (HBV) genome in cultured animal cells. An overlength HBV genome encoding the viral pregenomic RNA was put under transcriptional control of the human metallothionein IIA promoter thereby replacing the endogen...

journal_title：Nucleic acids research

authors： Junker M,Galle P,Schaller H

更新日期：1987-12-23 00:00:00

abstract：:Single cell RNA-seq experiments provide valuable insight into cellular heterogeneity but suffer from low coverage, 3' bias and technical noise. These unique properties of single cell RNA-seq data make study of alternative splicing difficult, and thus most single cell studies have restricted analysis of transcriptome v...

journal_title：Nucleic acids research

authors： Welch JD,Hu Y,Prins JF

更新日期：2016-05-05 00:00:00

abstract：:Post-transcriptional regulation and the formation of mRNA 3' ends are crucial for gene expression in eukaryotes. Interspecies conservation of many sequences within 3'UTRs reveals selective constraint due to similar function. To study the pattern of conservation within 3'UTRs, we compiled and aligned 50 sets of complet...

journal_title：Nucleic acids research

authors： Shabalina SA,Ogurtsov AY,Lipman DJ,Kondrashov AS

更新日期：2003-09-15 00:00:00

abstract：:Electron microscopic technique was used to examine the structures of SV40 DNA recombination intermediates induced by ultraviolet irradiation as an approach for understanding recombination mechanisms in animal cells. Putative recombination intermediate with the characteristic Holliday junction was observed in both SV40...

journal_title：Nucleic acids research

authors： Hsu MT

更新日期：1991-12-01 00:00:00

abstract：:We show how to speed up sequence alignment algorithms of the type introduced by Needleman and Wunsch (and generalized by Sellers and others). Faster alignment algorithms have been introduced, but always at the cost of possibly getting sub-optimal alignments. Our modification results in the optimal alignment still bein...

journal_title：Nucleic acids research

authors： Fickett JW

更新日期：1984-01-11 00:00:00

abstract：:Humans have two nearly identical copies of the survival motor neuron (SMN ) gene, SMN1 and SMN2. Homozygous loss of SMN1 causes spinal muscular atrophy (SMA). SMN2 is unable to prevent the disease due to skipping of exon 7. Using a systematic approach of in vivo selection, we have previously demonstrated that a weak 5...

journal_title：Nucleic acids research

authors： Singh NN,Singh RN,Androphy EJ

更新日期：2007-01-01 00:00:00

abstract：:Ethionamide is an antituberculous drug for the treatment of multidrug-resistant Mycobacterium tuberculosis. This antibiotic requires activation by the monooxygenase EthA to exert its activity. Production of EthA is controlled by the transcriptional repressor EthR, a member of the TetR family. The sensitivity of M. tub...

journal_title：Nucleic acids research

authors： Carette X,Blondiaux N,Willery E,Hoos S,Lecat-Guillet N,Lens Z,Wohlkönig A,Wintjens R,Soror SH,Frénois F,Dirié B,Villeret V,England P,Lippens G,Deprez B,Locht C,Willand N,Baulard AR

更新日期：2012-04-01 00:00:00

abstract：:Nucleotide excision repair is initiated by two different damage recognition subpathways, global genome repair (GGR) and transcription-coupled repair (TCR). In GGR, XPC detects DNA lesions and recruits TFIIH via interaction with the pleckstrin homology (PH) domain of TFIIH subunit p62. In TCR, an elongating form of RNA...

journal_title：Nucleic acids research

authors： Okuda M,Nakazawa Y,Guo C,Ogi T,Nishimura Y

更新日期：2017-12-15 00:00:00

abstract：:Cytosines in genomic DNA are sometimes methylated. This affects many biological processes and diseases. The standard way of measuring methylation is to use bisulfite, which converts unmethylated cytosines to thymines, then sequence the DNA and compare it to a reference genome sequence. We describe a method for the cri...

journal_title：Nucleic acids research

authors： Frith MC,Mori R,Asai K

更新日期：2012-07-01 00:00:00

abstract：:The database of 3D interacting domains (3did) is a collection of protein interactions for which high-resolution 3D structures are known. 3did exploits structural information to provide the crucial molecular details necessary for understanding how protein interactions occur. Besides interactions between globular domain...

journal_title：Nucleic acids research

authors： Stein A,Panjkovich A,Aloy P

更新日期：2009-01-01 00:00:00

abstract：:Transcription is the first step in gene expression, and it is the step at which most of the regulation of expression occurs. Although sequenced prokaryotic genomes provide a wealth of information, transcriptional regulatory networks are still poorly understood using the available genomic information, largely because a...

journal_title：Nucleic acids research

authors： Song K

更新日期：2012-02-01 00:00:00

abstract：:The primary rRNA transcript contains a large external transcribed spacer (ETS) approximately 4,000 nucleotides in length. We have used subcloned DNA probes derived from the 5' end of the ETS in conjunction with Northern blot analysis of murine nuclear RNA to examine processing of this region. In agreement with the res...

journal_title：Nucleic acids research

authors： Fetherston J,Werner E,Patterson R

更新日期：1984-09-25 00:00:00

abstract：:Hepatitis B viruses, or hepadnaviruses, are small DNA-containing viruses that replicate through reverse transcription. Their prototype, HBV, causes severe liver disease in humans. The hepadnaviral P protein is an unusual reverse transcriptase (RT) that initiates DNA synthesis by host-factor-dependent protein priming o...

journal_title：Nucleic acids research

authors： Beck J,Vogel M,Nassal M

更新日期：2002-04-01 00:00:00

abstract：:The nucleobase modification 5-methylcytosine (m(5)C) is widespread both in DNA and different cellular RNAs. The functions and enzymatic mechanisms of DNA m(5)C-methylation were extensively studied during the last decades. However, the location, the mechanism of formation and the cellular function(s) of the same modifi...

journal_title：Nucleic acids research

authors： Motorin Y,Lyko F,Helm M

更新日期：2010-03-01 00:00:00

abstract：:An intronic hexanucleotide UGCAUG has been shown to play a critical role in the regulation of tissue-specific alternative splicing of pre-mRNAs in a wide range of tissues. Vertebrate Fox-1 has been shown to bind to this element, in a highly sequence-specific manner, through its RNA recognition motif (RRM). In mammals,...

journal_title：Nucleic acids research

authors： Nakahata S,Kawamoto S

更新日期：2005-04-11 00:00:00

abstract：:ExPASy (http://www.expasy.org) has worldwide reputation as one of the main bioinformatics resources for proteomics. It has now evolved, becoming an extensible and integrative portal accessing many scientific resources, databases and software tools in different areas of life sciences. Scientists can henceforth access s...

journal_title：Nucleic acids research

authors： Artimo P,Jonnalagedda M,Arnold K,Baratin D,Csardi G,de Castro E,Duvaud S,Flegel V,Fortier A,Gasteiger E,Grosdidier A,Hernandez C,Ioannidis V,Kuznetsov D,Liechti R,Moretti S,Mostaguir K,Redaschi N,Rossier G,Xenarios

更新日期：2012-07-01 00:00:00

abstract：:Ribosome synthesis involves the concomitance of pre-rRNA processing and ribosomal protein assembly. In eukaryotes, this is a complex process that requires the participation of specific sequences and structures within the pre-rRNAs, at least 200 trans-acting factors and the ribosomal proteins. There is little informati...

journal_title：Nucleic acids research

authors： Babiano R,de la Cruz J

更新日期：2010-08-01 00:00:00

abstract：:A novel method to measure mRNA levels has been developed by combining the detection capabilities of RNase protection (RPA) with the quantification advantages of scintillation proximity assay (SPA) technology. Sample processing is reduced to the addition of a single reagent post RNase digestion. As a model system, the ...

journal_title：Nucleic acids research

authors： Kenrick MK,Jiang L,Potts CL,Owen PJ,Shuey DJ,Econome JG,Anson JG,Quinet EM

更新日期：1997-07-15 00:00:00

abstract：:We have developed general methods for joining together, via cleavable disulfide bonds, either two unprotected polynucleotides or a polynucleotide and a peptide or protein. To join two oligonucleotides, each is first converted to an adduct in which cystamine is joined to the 5'-terminal phosphate of the oligonucleotide...

journal_title：Nucleic acids research

authors： Chu BC,Orgel LE

更新日期：1988-05-11 00:00:00

abstract：:The alternatively spliced RNA species of tumor suppressor gene p53, containing an additional 96 bases derived from intron 10, is present at approximately 25 to 30% the level of regularly spliced p53 RNA in both normal epidermal and carcinoma cells. The presence of this alternatively spliced RNA in 10T1/2 fibroblast ce...

journal_title：Nucleic acids research

authors： Han KA,Kulesz-Martin MF

更新日期：1992-04-25 00:00:00

abstract：:MiRNAs post-transcriptionally regulate gene expression by recruiting the miRNA-induced silencing complex (miRISC) to target mRNAs. However, the mechanisms by which miRISC components are maintained at appropriate levels for proper function are largely unknown. Here, we demonstrate that Caenorhabditis elegans TEG-1 regu...

journal_title：Nucleic acids research

authors： Wang C,Gupta P,Fressigne L,Bossé GD,Wang X,Simard MJ,Hansen D

更新日期：2017-02-17 00:00:00

abstract：:DNA triplet repeats, 5'-d(CTG)n and 5'-d(CAG)n, are present in genes which have been implicated in several neurodegenerative disorders. To investigate possible stable structures formed by these repeating sequences, we have examined d(CTG)n, d(CAG)n and d(CTG).d(CAG)n (n = 2 and 3) using NMR and UV optical spectroscopy...

journal_title：Nucleic acids research

authors： Smith GK,Jie J,Fox GE,Gao X

更新日期：1995-11-11 00:00:00

abstract：:Comparison of the nucleotide sequence of mRNAs coding for several vertebrate actins revealed a high degree of sequence homology in the 3' untranslated region (3' UTR) between those mRNAs coding for homologous (isotypic) actins in different organisms but not between mRNAs coding for very similar isoforms differing in t...

journal_title：Nucleic acids research

authors： Yaffe D,Nudel U,Mayer Y,Neuman S

更新日期：1985-05-24 00:00:00

abstract：:A series of plasmids were constructed in which a promoter was introduced into a lac-based operon fusion vector. A perfectly symmetrical oligonucleotide of 22-bp corresponding to an idealized binding site for cAMP receptor protein (CRP) of E. coli was chemically synthesized. The synthetic CRP site was placed between th...

journal_title：Nucleic acids research

authors： Morita T,Shigesada K,Kimizuka F,Aiba H

更新日期：1988-08-11 00:00:00

abstract：:Translin is a single-stranded RNA- and DNA-binding protein, which has been highly conserved in eukaryotes, from man to Schizosaccharomyces pombe. TRAX is a Translin paralog associated with Translin, which has coevolved with it. We generated structural models of the S. pombe Translin (spTranslin), based on the solved 3...

journal_title：Nucleic acids research

authors： Eliahoo E,Ben Yosef R,Pérez-Cano L,Fernández-Recio J,Glaser F,Manor H

更新日期：2010-05-01 00:00:00

abstract：:Bacterial small regulatory RNAs (sRNAs) are the most abundant class of post-transcriptional regulators and have been well studied in Gram-negative bacteria. Little is known about the functions and mechanisms of sRNAs in high GC Gram-positive bacteria including Mycobacterium and Streptomyces. Here, we performed an in-d...

journal_title：Nucleic acids research

authors： Mai J,Rao C,Watt J,Sun X,Lin C,Zhang L,Liu J

更新日期：2019-05-07 00:00:00

abstract：:Chemically modified antisense oligonucleotides (ASOs) with phosphorothioate (PS) linkages have been extensively studied as research and therapeutic agents. PS-ASOs can enter the cell and trigger cleavage of complementary RNA by RNase H1 even in the absence of transfection reagent. A number of cell surface proteins hav...

journal_title：Nucleic acids research

authors： Wang S,Allen N,Vickers TA,Revenko AS,Sun H,Liang XH,Crooke ST

更新日期：2018-04-20 00:00:00

abstract：:Carbohydrate-binding proteins play crucial roles across all organisms and viruses. The complexity of carbohydrate structures, together with inconsistencies in how their 3D structures are reported, has led to difficulties in characterizing the protein-carbohydrate interfaces. In order to better understand protein-carbo...

journal_title：Nucleic acids research

authors： Copoiu L,Torres PHM,Ascher DB,Blundell TL,Malhotra S

更新日期：2020-01-08 00:00:00