Cell-free cloning of highly expanded CTG repeats by amplification of dimerized expanded repeats.

abstract：:The first step in DNA cleavage at V(D)J recombination signals by RAG1 and RAG2 is creation of a nick at the heptamer/coding flank border. Under proper conditions in vitro the second step, hairpin formation, requires two signals with spacers of 12 and 23 bp, a restriction referred to as the 12/23 rule. Under these cond...

journal_title：Nucleic acids research

authors： Eastman QM,Schatz DG

更新日期：1997-11-01 00:00:00

abstract：:We examined the influence of the tetratricopeptide repeat factor XAB2 on chromosomal break repair, and found that XAB2 promotes end resection that generates the 3' ssDNA intermediate for homologous recombination (HR). Namely, XAB2 is important for chromosomal double-strand break (DSB) repair via two pathways of HR tha...

journal_title：Nucleic acids research

authors： Onyango DO,Howard SM,Neherin K,Yanez DA,Stark JM

更新日期：2016-07-08 00:00:00

abstract：:We report the consensus sequence of members of a new dispersed middle-repetitive DNA family, MT, which is present in mouse and rat genomes. This family is shown to be as abundant as the described rodent B1 and B2 families. Hybridization experiments with radioactive single-stranded cDNAs from different tissues indicate...

journal_title：Nucleic acids research

authors： Heinlein UA,Lange-Sablitzky R,Schaal H,Wille W

更新日期：1986-08-26 00:00:00

abstract：:Treatment of responsive cells by interferons (IFNs) induces within a few hours a rise in the concentration of several proteins and mRNAs. In order to characterize these IFN-induced mRNA species, we have cloned in E. coli the cDNA made from a 17-18S poly(A)+ RNA of human fibroblastoid cells (SV80) treated with IFN-beta...

journal_title：Nucleic acids research

authors： Chebath J,Merlin G,Metz R,Benech P,Revel M

更新日期：1983-03-11 00:00:00

abstract：:Phylogenetic analysis of Y-family DNA polymerases suggests that it can be subdivided into several discrete branches consisting of UmuC/DinB/Rev1/Rad30/Rad30A and Rad30B. The most diverse is the DinB family that is found in all three kingdoms of life. Searches of the complete genome of the crenarchaeon Sulfolobus solfa...

journal_title：Nucleic acids research

authors： Boudsocq F,Iwai S,Hanaoka F,Woodgate R

更新日期：2001-11-15 00:00:00

abstract：:The MalaCards human disease database (http://www.malacards.org/) is an integrated compendium of annotated diseases mined from 68 data sources. MalaCards has a web card for each of ∼20 000 disease entries, in six global categories. It portrays a broad array of annotation topics in 15 sections, including Summaries, Symp...

journal_title：Nucleic acids research

authors： Rappaport N,Twik M,Plaschkes I,Nudel R,Iny Stein T,Levitt J,Gershoni M,Morrey CP,Safran M,Lancet D

更新日期：2017-01-04 00:00:00

abstract：:During translation initiation, eukaryotic initiation factor 2 (eIF2) delivers the Met-tRNA to the 40S ribosomal subunit to locate the initiation codon (AUGi) of mRNA during the scanning process. Stress-induced eIF2 phosphorylation leads to a general blockade of translation initiation and represents a key antiviral pat...

journal_title：Nucleic acids research

authors： Toribio R,Díaz-López I,Boskovic J,Ventoso I

更新日期：2016-05-19 00:00:00

abstract：:Nucleosomes, a basic structural unit of eukaryotic chromatin, play a significant role in regulating gene expression. We have developed a web tool based on DNA sequences known from empirical and theoretical studies to influence DNA bending and flexibility, and to exclude nucleosomes. NXSensor (available at http://www.s...

journal_title：Nucleic acids research

authors： Luykx P,Bajić IV,Khuri S

更新日期：2006-07-01 00:00:00

abstract：:T4 polynucleotide kinase (Pnk) is a bifunctional 5'-kinase/3'-phosphatase that aids in the repair of broken termini in RNA by converting 3'-PO4/5'-OH ends into 3'-OH/5'-PO4 ends, which are then sealed by RNA ligase. Here we have employed site-directed mutagenesis (introducing 31 mutations at 16 positions) to locate ca...

journal_title：Nucleic acids research

authors： Wang LK,Shuman S

更新日期：2002-02-15 00:00:00

abstract：:Synthesis of (p)ppRNA-DNA chains by purified HeLa cell DNA primase-DNA polymerase alpha (pol alpha-primase) was compared with those synthesized by a multiprotein form of DNA polymerase alpha (pol alpha 2) using unique single-stranded DNA templates containing the origin of replication for simian virus 40 (SV40) DNA. Th...

journal_title：Nucleic acids research

authors： Vishwanatha JK,Yamaguchi M,DePamphilis ML,Baril EF

更新日期：1986-09-25 00:00:00

abstract：:We examined the 3'-flanking regions required for accurate 3'-end formation of wheat histone H3 mRNA using gene expression in transformed sunflower cells. The introduction of mutations into the conserved sequence AATGGAAATG in the 3'-flanking region of plant histone genes, located 22 bp upstream from the polyadenylatio...

journal_title：Nucleic acids research

authors： Ohtsubo N,Iwabuchi M

更新日期：1994-03-25 00:00:00

abstract：:Cell differentiation is a central process in development and in cancer growth and dissemination. OCT4 (POU5F1) and NANOG are essential for cell stemness and pluripotency; yet, the mechanisms that regulate their expression remain largely unknown. Repetitive elements account for almost half of the Human Genome; still, t...

journal_title：Nucleic acids research

authors： Morales-Hernández A,González-Rico FJ,Román AC,Rico-Leo E,Alvarez-Barrientos A,Sánchez L,Macia Á,Heras SR,García-Pérez JL,Merino JM,Fernández-Salguero PM

更新日期：2016-06-02 00:00:00

abstract：:The proposition that the 2-amino group of guanine plays a critical role in determining how antibiotics recognise their binding sites in DNA has been tested by relocating it, using tyrT DNA derivative molecules substituted with inosine plus 2,6-diaminopurine (DAP). Irrespective of their mode of interaction with DNA, su...

journal_title：Nucleic acids research

authors： Bailly C,Waring MJ

更新日期：1995-03-25 00:00:00

abstract：:The pyrrole-imidazole (Py-Im) triamide-cyclopropa pyrroloindole (CPI) conjugates ImPyImLDu86 (7) and ImImPyLDu86 (14) were synthesized and their alkylating activities and inhibitory effects on DNA hydrolysis by restriction endonucleases were examined. Sequencing gel analysis demonstrated that conjugates 7 and 14 speci...

journal_title：Nucleic acids research

authors： Fujimoto K,Iida H,Kawakami M,Bando T,Tao ZF,Sugiyama H

更新日期：2002-09-01 00:00:00

abstract：:The poly(A) signal and downstream elements with transcriptional pausing activity play an important role in termination of RNA polymerase II transcription. We show that an intronic sequence derived from the plant seed protein gene (AmA1) specifically acts as a transcriptional terminator in the fission yeast, Schizosacc...

journal_title：Nucleic acids research

authors： Chakraborty S,Sarmah B,Chakraborty N,Datta A

更新日期：2002-07-01 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 anticancer drug cisplatin reacts with DNA leading to the formation of interstrand and intrastrand cross-links that are the critical cytotoxic lesions. In contrast to cells bearing mutations in other components of the nucleotide excision repair apparatus (XPB, XPD, XPG and CSB), cells defective for the ERCC1-XPF st...

journal_title：Nucleic acids research

authors： De Silva IU,McHugh PJ,Clingen PH,Hartley JA

更新日期：2002-09-01 00:00:00

abstract：:The macronuclear genome of Euplotes crassus contains two different genes, EFA1 and EFA2, encoding EF-1alpha proteins. They are derived from micronuclear precursors in the course of a sexual process termed conjugation. We have found that two apparent micronuclear precursors exist for EFA1. They differ in their potentia...

journal_title：Nucleic acids research

authors： Florian V,Klein A

更新日期：1996-08-15 00:00:00

abstract：:We have isolated the gene coding for the U2 analogue in trypanosomes. The 148 nucleotide long U2 RNA is capped and transcribed from a single copy gene. The 5' half of the molecule is highly homologous to mammalian U2 RNA, while the 3' half does not show any significant sequence homology with the mammalian counterpart....

journal_title：Nucleic acids research

authors： Tschudi C,Richards FF,Ullu E

更新日期：1986-11-25 00:00:00

abstract：:The cDNA encoding the human RNA lariat debranching enzyme (hDBR1) was identified and cloned by searching the Expressed Sequence Tag (EST) database and screening a HeLa cDNA library, based on predicted amino acid sequence homologies with the Saccharomyces cerevisiae, Schizosaccharomyces pombe and Caenorhabditis elegans...

journal_title：Nucleic acids research

authors： Kim JW,Kim HC,Kim GM,Yang JM,Boeke JD,Nam K

更新日期：2000-09-15 00:00:00

abstract：:Alternative first exons diversify the transcriptomes of eukaryotes by producing variants of the 5' Untranslated Regions (5'UTRs) and N-terminal coding sequences. Accurate transcriptome-wide detection of alternative first exons typically requires specialized experimental approaches that are designed to identify the 5' ...

journal_title：Nucleic acids research

authors： Qin Z,Stoilov P,Zhang X,Xing Y

更新日期：2018-05-04 00:00:00

abstract：:DNA replication of phi29 and related phages takes place via a strand displacement mechanism, a process that generates large amounts of single-stranded DNA (ssDNA). Consequently, phage-encoded ssDNA-binding proteins (SSBs) are essential proteins during phage phi29-like DNA replication. In the present work we analyze th...

journal_title：Nucleic acids research

authors： Gascón I,Lázaro JM,Salas M

更新日期：2000-05-15 00:00:00

abstract：:Scalable multiplexed amplification technologies are needed for cost-effective large-scale genotyping of genetic markers such as single nucleotide polymorphisms (SNPs). We present SNPWave, a novel SNP genotyping technology to detect various subsets of sequences in a flexible fashion in a fixed detection format. SNPWave...

journal_title：Nucleic acids research

authors： van Eijk MJ,Broekhof JL,van der Poel HJ,Hogers RC,Schneiders H,Kamerbeek J,Verstege E,van Aart JW,Geerlings H,Buntjer JB,van Oeveren AJ,Vos P

更新日期：2004-03-05 00:00:00

abstract：:Available evidence suggests that Mg2+ ions are involved in reactions catalyzed by hammerhead ribozymes. However, the activity in the presence of exclusively monovalent ions led us to question whether divalent metal ions really function as catalysts when they are present. We investigated ribozyme activity in the presen...

journal_title：Nucleic acids research

authors： Inoue A,Takagi Y,Taira K

更新日期：2004-08-09 00:00:00

abstract：:The conformations of supercoiled (sc) DNA and linear DNA bound to polylysine (PL)-coated mica were investigated by scanning force microscopy (SFM) in solution. From the polymer statistical analysis of linear DNA, we could distinguish between re-arrangements or trapping of the DNA on the surface. Conditions of re-arran...

journal_title：Nucleic acids research

authors： Bussiek M,Mücke N,Langowski J

更新日期：2003-11-15 00:00:00

abstract：:A 5',7-methylguanosine cap is a quintessential feature of RNA polymerase II-transcribed RNAs, and a textbook aspect of co-transcriptional RNA processing. The cap is bound by the cap-binding complex (CBC), canonically consisting of nuclear cap-binding proteins 1 and 2 (NCBP1/2). Interest in the CBC has recently renewed...

journal_title：Nucleic acids research

authors： Dou Y,Kalmykova S,Pashkova M,Oghbaie M,Jiang H,Molloy KR,Chait BT,Rout MP,Fenyö D,Jensen TH,Altukhov I,LaCava J

更新日期：2020-10-09 00:00:00

abstract：:In prokaryotes and archaea transfer ribonucleic acid (tRNA) stability as well as cellular UV protection relies on the post-transcriptional modification of uracil at position 8 (U8) of tRNAs by the 4-thiouridine synthetase ThiI. Here, we report three crystal structures of ThiI from Thermotoga maritima in complex with a...

journal_title：Nucleic acids research

authors： Neumann P,Lakomek K,Naumann PT,Erwin WM,Lauhon CT,Ficner R

更新日期：2014-06-01 00:00:00

abstract：:Knowledge of subcellular localizations (SCLs) of plant proteins relates to their functions and aids in understanding the regulation of biological processes at the cellular level. We present PlantLoc, a highly accurate and fast webserver for predicting the multi-label SCLs of plant proteins. The PlantLoc server has two...

journal_title：Nucleic acids research

authors： Tang S,Li T,Cong P,Xiong W,Wang Z,Sun J

更新日期：2013-07-01 00:00:00

abstract：:The petunia rbcS gene SSU301 was introduced into tobacco using Agrobacterium tumefaciens-mediated transformation. The time at which rbcS expression was maximal after transfer of the tobacco plants to the greenhouse was determined. The expression level of the SSU301 gene varied up to 9 fold between individual tobacco p...

journal_title：Nucleic acids research

authors： Dean C,Jones J,Favreau M,Dunsmuir P,Bedbrook J

更新日期：1988-10-11 00:00:00

abstract：:Ribosomal recruitment of cellular mRNAs depends on binding of eIF4F to the mRNA's 5'-terminal 'cap'. The minimal 'cap0' consists of N7-methylguanosine linked to the first nucleotide via a 5'-5' triphosphate (ppp) bridge. Cap0 is further modified by 2'-O-methylation of the next two riboses, yielding 'cap1' (m7GpppNmN) ...

journal_title：Nucleic acids research

authors： Kumar P,Sweeney TR,Skabkin MA,Skabkina OV,Hellen CU,Pestova TV

更新日期：2014-03-01 00:00:00