Expanded molecular diversity generation during directed evolution by trinucleotide exchange (TriNEx).

abstract：:IGF2 mRNA-binding protein 1 (IMP1) is a key regulator of messenger RNA (mRNA) metabolism and transport in organismal development and, in cancer, its mis-regulation is an important component of tumour metastasis. IMP1 function relies on the recognition of a diverse set of mRNA targets that is mediated by the combinator...

journal_title：Nucleic acids research

authors： Dagil R,Ball NJ,Ogrodowicz RW,Hobor F,Purkiss AG,Kelly G,Martin SR,Taylor IA,Ramos A

更新日期：2019-05-07 00:00:00

abstract：:We have isolated a pigment cell-specific cDNA clone from a B16 mouse melanoma cDNA library by differential hybridization. The mRNA of isolated cDNA is highly expressed in B16 melanoma cells and in black mouse (C57BL/6) skin, but is not detectable in mouse neuroblastoma cells nor in K1735 mouse amelanotic melanoma cell...

journal_title：Nucleic acids research

authors： Shibahara S,Tomita Y,Sakakura T,Nager C,Chaudhuri B,Müller R

更新日期：1986-03-25 00:00:00

abstract：:Horizontal gene transfer (HGT) is a major force in microbial evolution. Previous studies have suggested that a variety of factors, including restricted recombination and toxicity of foreign gene products, may act as barriers to the successful integration of horizontally transferred genes. This study identifies an addi...

journal_title：Nucleic acids research

authors： Tuller T,Girshovich Y,Sella Y,Kreimer A,Freilich S,Kupiec M,Gophna U,Ruppin E

更新日期：2011-06-01 00:00:00

abstract：:It is informative to detect highly conserved positions in proteins and nucleic acid sequence/structure since they are often indicative of structural and/or functional importance. ConSurf (http://consurf.tau.ac.il) and ConSeq (http://conseq.tau.ac.il) are two well-established web servers for calculating the evolutionar...

journal_title：Nucleic acids research

authors： Ashkenazy H,Erez E,Martz E,Pupko T,Ben-Tal N

更新日期：2010-07-01 00:00:00

abstract：:In the presence of S-adenosyl methionine the 5' terminal guanosine residue of in vitro synthesized reovirus mRNA becomes methylated at the 2'-OH position. In addition, 7-methyl guanylic acid is condensed covalently at the 5' terminus resulting in the formation of a 5' to 5' triphosphate bridge. Analysis of the 5' term...

journal_title：Nucleic acids research

authors： Faust M,Hastings KE,Millward S

更新日期：1975-08-01 00:00:00

abstract：:In this article, we introduce the Gypsy Database (GyDB) of mobile genetic elements, an in-progress database devoted to the non-redundant analysis and evolutionary-based classification of mobile genetic elements. In this first version, we contemplate eukaryotic Ty3/Gypsy and Retroviridae long terminal repeats (LTR) ret...

journal_title：Nucleic acids research

authors： Lloréns C,Futami R,Bezemer D,Moya A

更新日期：2008-01-01 00:00:00

abstract：:Three Rat1/Xrn2 homologues exist in Arabidopsis thaliana: nuclear AtXRN2 and AtXRN3, and cytoplasmic AtXRN4. The latter has a role in degrading 3' products of miRNA-mediated mRNA cleavage, whereas all three proteins act as endogenous post-transcriptional gene silencing suppressors. Here we show that, similar to yeast ...

journal_title：Nucleic acids research

authors： Zakrzewska-Placzek M,Souret FF,Sobczyk GJ,Green PJ,Kufel J

更新日期：2010-07-01 00:00:00

abstract：:The translational regulation of ferritin expression currently represents the only well characterized example for eukaryotic translational control by high affinity interactions between a specific cytoplasmic protein, iron regulatory factor [IRF], and an mRNA-binding site, the iron-responsive element [IRE], located in t...

journal_title：Nucleic acids research

authors： Stripecke R,Hentze MW

更新日期：1992-11-11 00:00:00

abstract：:The Genotyping tool at the National Center for Biotechnology Information is a web-based program that identifies the genotype (or subtype) of recombinant or non-recombinant viral nucleotide sequences. It works by using BLAST to compare a query sequence to a set of reference sequences for known genotypes. Predefined ref...

journal_title：Nucleic acids research

authors： Rozanov M,Plikat U,Chappey C,Kochergin A,Tatusova T

更新日期：2004-07-01 00:00:00

abstract：:Heptadecaoligodeoxyribonucleotides containing one or more of the bases, 6H,8H-3,4-dihydropyrimido[4,5-c][1,2]oxazin-7-one (P), 2-amino-6-methoxyaminopurine (K), and hypoxanthine (I) and combinations of P with K and I have been synthesised on a DNA synthesiser. The stability of duplexes containing these basemodified ol...

journal_title：Nucleic acids research

authors： Lin PK,Brown DM

更新日期：1992-10-11 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：:The Saccharomyces cerevisiae Sgs1p helicase localizes to the nucleolus and is required to maintain the integrity of the rDNA repeats. Sgs1p is a member of the RecQ DNA helicase family, which also includes Schizo-saccharomyces pombe Rqh1, and the human BLM and WRN genes. These genes encode proteins which are essential ...

journal_title：Nucleic acids research

authors： Sun H,Bennett RJ,Maizels N

更新日期：1999-05-01 00:00:00

abstract：:We have reported on the differences in site-specific cleavage between DNA and DNA-RNA hybrids by various prototypic DNA cleavers (accompanying paper). In the case of bleomycin (BLM), degradation at 5'-GC-3'sites was suppressed relative to the same sequence in double-stranded DNA, while 5'-GT-3' damage remained constan...

journal_title：Nucleic acids research

authors： Bansal M,Stubbe J,Kozarich JW

更新日期：1997-05-01 00:00:00

abstract：:The Retinol-Binding Protein (RBP) is expressed primarily in the liver. The regulatory elements involved in its tissue-specific expression have been identified and mapped to the 5' flanking region of the RBP gene. In this paper heterokaryons and somatic cell-hybrids have been produced and analysed in order to demonstra...

journal_title：Nucleic acids research

authors： Faraonio R,Musy M,Colantuoni V

更新日期：1990-12-25 00:00:00

abstract：:The first step in gene expression, transcription, is modulated by the interaction of transcription factors with their corresponding binding sites on the DNA sequence. Pscan is a software tool that scans a set of sequences (e.g. promoters) from co-regulated or co-expressed genes with motifs describing the binding speci...

journal_title：Nucleic acids research

authors： Zambelli F,Pesole G,Pavesi G

更新日期：2009-07-01 00:00:00

abstract：:We have cloned and sequenced the lasR gene, which is involved in the transcriptional activation of several pathogenic factors, from Pseudomonas aeruginosa IFO3455 and PA103. These clones were predicted to be an open reading frame of 239 amino acids as reported for the PAO1 strain. There is only a single base change re...

journal_title：Nucleic acids research

authors： Fukushima J,Ishiwata T,Kurata M,You Z,Okuda K

更新日期：1994-09-11 00:00:00

abstract：:The web software SIC provides a tool to search for short inverted segments (length 3-5000 bp) in a DNA sequence. The sequence is assumed to follow a Markov model. A statistic which is sensitive to inversion is presented. Searching inverted segments is done by a scanning approach after the user specifies the size of th...

journal_title：Nucleic acids research

authors： Robelin D,Richard H,Prum B

更新日期：2003-07-01 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：:Thermophilic viruses represent a novel source of genetic material and enzymes with great potential for use in biotechnology. We have isolated a number of thermophilic viruses from geothermal areas in Iceland, and by combining high throughput genome sequencing and state of the art bioinformatics we have identified a nu...

journal_title：Nucleic acids research

authors： Blondal T,Hjorleifsdottir SH,Fridjonsson OF,Aevarsson A,Skirnisdottir S,Hermannsdottir AG,Hreggvidsson GO,Smith AV,Kristjansson JK

更新日期：2003-12-15 00:00:00

abstract：:KUPS (The University of Kansas Proteomics Service) provides high-quality protein-protein interaction (PPI) data for researchers developing and evaluating computational models for predicting PPIs by allowing users to construct ready-to-use data sets of interacting protein pairs (IPPs), non-interacting protein pairs (NI...

journal_title：Nucleic acids research

authors： Chen XW,Jeong JC,Dermyer P

更新日期：2011-01-01 00:00:00

abstract：:DNA damage tolerance (DDT) is responsible for genomic stability and cell viability by bypassing the replication block. In Saccharomyces cerevisiae DDT employs two parallel branch pathways to bypass the DNA lesion, namely translesion DNA synthesis (TLS) and error-free lesion bypass, which are mediated by sequential mod...

journal_title：Nucleic acids research

authors： Xu X,Lin A,Zhou C,Blackwell SR,Zhang Y,Wang Z,Feng Q,Guan R,Hanna MD,Chen Z,Xiao W

更新日期：2016-06-20 00:00:00

abstract：:The disappearance of defined restriction fragments of the beta 1-globin, an albumin and the A1 vitellogenin gene was quantitated after DNase I digestion and expressed by a sensitivity factor defined by a mathematical model. Analysis of naked DNA showed that the gene fragments have similar but not identical sensitivity...

journal_title：Nucleic acids research

authors： Felber BK,Gerber-Huber S,Meier C,May FE,Westley B,Weber R,Ryffel GU

更新日期：1981-06-11 00:00:00

abstract：:Aedes aegypti mosquitoes vector several arboviruses of global health significance, including dengue viruses and chikungunya virus. RNA interference (RNAi) plays an important role in antiviral immunity, gene regulation and protection from transposable elements. Double-stranded RNA binding proteins (dsRBPs) are importan...

journal_title：Nucleic acids research

authors： Haac ME,Anderson MA,Eggleston H,Myles KM,Adelman ZN

更新日期：2015-04-20 00:00:00

abstract：:The RNA-Seq technology has revolutionized transcriptome characterization not only by accurately quantifying gene expression, but also by the identification of novel transcripts like chimeric fusion transcripts. The 'fusion' or 'chimeric' transcripts have improved the diagnosis and prognosis of several tumors, and have...

journal_title：Nucleic acids research

authors： Li Y,Heavican TB,Vellichirammal NN,Iqbal J,Guda C

更新日期：2017-07-27 00:00:00

abstract：:A screening for human proteins capable of interacting with influenza virus NS1 has been carried out using the two-hybrid genetic trap in yeast. A cDNA corresponding to the human homologue of Drosophila melanogaster Staufen protein (hStaufen) was isolated that fulfilled all genetic controls of the two-hybrid protocol. ...

journal_title：Nucleic acids research

authors： Falcón AM,Fortes P,Marión RM,Beloso A,Ortín J

更新日期：1999-06-01 00:00:00

abstract：:We report that greA expression is driven by two strong, overlapping P1 and P2 promoters. The P1 promoter is sigma(70)-dependent and P2 is sigma(E)-dependent. Two-thirds of transcripts terminate within the leader region and the remaining third comprises greA mRNA. Termination efficiency seems to be unaffected by growth...

journal_title：Nucleic acids research

authors： Potrykus K,Murphy H,Chen X,Epstein JA,Cashel M

更新日期：2010-03-01 00:00:00

abstract：:Biophysical properties of DNA such as its longitudinal and torsional persistence length govern many processes and phenomena in biology, DNA nanotechnology and biotechnology. It has, for example, long been known that the circularization efficiency of short DNA fragments shows a periodic pattern where fragments with int...

journal_title：Nucleic acids research

authors： Joffroy B,Uca YO,Prešern D,Doye JPK,Schmidt TL

更新日期：2018-01-25 00:00:00

abstract：:One of the obstacles hindering a better understanding of cancer is its heterogeneity. However, computational approaches to model cancer heterogeneity have lagged behind. To bridge this gap, we have developed a new probabilistic approach that models individual cancer cases as mixtures of subtypes. Our approach can be s...

journal_title：Nucleic acids research

authors： Cho DY,Przytycka TM

更新日期：2013-09-01 00:00:00

abstract：:Bovine mitochondrial (mt) phenylalanine tRNA (tRNA(Phe)), which lacks the 'conserved' GG and T psi YCG sequences, was efficiently purified by the selective hybridization method using a solid phase DNA probe. The entire nucleotide sequence of the tRNA, including modified nucleotides, was determined and its higher-order...

journal_title：Nucleic acids research

authors： Wakita K,Watanabe Y,Yokogawa T,Kumazawa Y,Nakamura S,Ueda T,Watanabe K,Nishikawa K

更新日期：1994-02-11 00:00:00

abstract：:The widely accepted model for the processing of tRNAs in Escherichia coli involves essential initial cleavages by RNase E within polycistronic transcripts to generate pre-tRNAs that subsequently become substrates for RNase P. However, recently we identified two polycistronic tRNA transcripts whose endonucleolytic proc...

journal_title：Nucleic acids research

authors： Mohanty BK,Kushner SR

更新日期：2008-02-01 00:00:00