Organization of the sequences flanking immunoglobulin heavy chain genes and their role in class switching.

abstract：:The RecQ family of helicases is highly conserved both structurally and functionally from bacteria to humans. Defects in human RecQ helicases are associated with genetic diseases that are characterized by cancer predisposition and/or premature aging. RecQ proteins exhibit 3'-5' helicase activity and play critical roles...

journal_title：Nucleic acids research

authors： Choi S,Lee SW,Kim H,Ahn B

更新日期：2019-10-10 00:00:00

abstract：:YB-1 is a universal major protein of cytoplasmic mRNPs, a member of the family of multifunctional cold shock domain proteins (CSD proteins). Depending on its amount on mRNA, YB-1 stimulates or inhibits mRNA translation. In this study, we have analyzed complexes formed in vitro at various YB-1 to mRNA ratios, including...

journal_title：Nucleic acids research

authors： Skabkin MA,Kiselyova OI,Chernov KG,Sorokin AV,Dubrovin EV,Yaminsky IV,Vasiliev VD,Ovchinnikov LP

更新日期：2004-10-19 00:00:00

abstract：:Polyploidy, the presence of multiple sets of chromosomes that are similar but not identical, complicates both chromosome walking and assembly of sequence-ready contigs for many plant taxa including a large number of economically-significant crops. Traditional 'dot-blot hybridization' or PCR-based assays for identifyin...

journal_title：Nucleic acids research

authors： Lin YR,Draye X,Qian X,Ren S,Zhu LH,Tomkins J,Wing RA,Li Z,Paterson AH

更新日期：2000-04-01 00:00:00

abstract：:By transporting one DNA double helix (T-segment) through a double-strand break in another (G-segment), topoisomerase II reduces fractions of DNA catenanes, knots and supercoils to below equilibrium values. How DNA segments are selected to simplify the equilibrium DNA topology is enigmatic, and the biological relevance...

journal_title：Nucleic acids research

authors： Martínez-García B,Fernández X,Díaz-Ingelmo O,Rodríguez-Campos A,Manichanh C,Roca J

更新日期：2014-02-01 00:00:00

abstract：:The genes for mitoribosomal protein S12 (Mrps12) and mitochondrial seryl-tRNA ligase (Sarsm and Sars2) are oppositely transcribed from a conserved promoter region of <200 bp in both human and mouse. Using a dual reporter vector we identified an array of 4 CCAAT box elements required for efficient transcription of the ...

journal_title：Nucleic acids research

authors： Zanotto E,Shah ZH,Jacobs HT

更新日期：2007-01-01 00:00:00

abstract：:Previous evidence indicates that telomeres resemble common fragile sites and present a challenge for DNA replication. The precise impediments to replication fork progression at telomeric TTAGGG repeats are unknown, but are proposed to include G-quadruplexes (G4) on the G-rich strand. Here we examined DNA synthesis and...

journal_title：Nucleic acids research

authors： Lormand JD,Buncher N,Murphy CT,Kaur P,Lee MY,Burgers P,Wang H,Kunkel TA,Opresko PL

更新日期：2013-12-01 00:00:00

abstract：:We have adapted a method for making libraries of mutations in any specific gene for use in the fission yeast Schizosaccharomyces pombe . This elegant and simple method consists of PCR amplification of the gene of interest, followed by co-transformation of fission yeast with the PCR fragment and a linearized plasmid ve...

journal_title：Nucleic acids research

authors： Kostrub CF,Lei EP,Enoch T

更新日期：1998-10-15 00:00:00

abstract：:MHCPEP is a curated database comprising over 6000 peptide sequences known to bind MHC molecules. Entries are compiled from published reports as well as from direct submissions of experimental data. Each entry contains peptide sequence, MHC specificity and when available, experimental method, observed activity, binding...

journal_title：Nucleic acids research

authors： Brusic V,Rudy G,Kyne AP,Harrison LC

更新日期：1996-01-01 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：:The pattern of preferential DNA repair of UV-induced pyrimidine dimers was studied in repair-deficient Chinese hamster ovary (CHO) cells transfected with the human excision repair gene, ERCC-1. Repair efficiency was measured in the active dihydrofolate reductase (DHFR) gene and in its flanking, non-transcribed sequenc...

journal_title：Nucleic acids research

authors： Bohr VA,Chu EH,van Duin M,Hanawalt PC,Okumoto DS

更新日期：1988-08-11 00:00:00

abstract：:A total of 10 B-lymphocyte-specific DNase I hypersensitive sites located in the chicken Ig-beta locus were divided into four regions and combinations of deletions of these regions were carried out. A decrease in transcription of the Ig-beta gene to <3% was demonstrated in cells with deletions in all four regions. The ...

journal_title：Nucleic acids research

authors： Shimada N,Matsudo H,Osano K,Arakawa H,Buerstedde JM,Matsumoto Y,Chayahara K,Torihata A,Ono M

更新日期：2006-08-11 00:00:00

abstract：:We attempted to use the polymerase chain reaction (PCR) to monitor in vitro recombination in a plasmid containing directly repeated sequences. Some of the plasmid preparations which had not been exposed to recombination conditions were however found to behave in the PCR test as if they had undergone homologous recombi...

journal_title：Nucleic acids research

authors： Marton A,Delbecchi L,Bourgaux P

更新日期：1991-05-11 00:00:00

abstract：:Stabilization of stalled replication forks prevents excessive fork reversal or degradation, which can undermine genome integrity. The WRN protein is unique among the other human RecQ family members to possess exonuclease activity. However, the biological role of the WRN exonuclease is poorly defined. Recently, the WRN...

journal_title：Nucleic acids research

authors： Aiello FA,Palma A,Malacaria E,Zheng L,Campbell JL,Shen B,Franchitto A,Pichierri P

更新日期：2019-07-26 00:00:00

abstract：:Recent advances in DNA-sequencing technology have made it possible to obtain large datasets of small RNA sequences. Here we demonstrate that not all non-perfectly matched small RNA sequences are simple technological sequencing errors, but many hold valuable biological information. Analysis of three small RNA datasets ...

journal_title：Nucleic acids research

authors： Ebhardt HA,Tsang HH,Dai DC,Liu Y,Bostan B,Fahlman RP

更新日期：2009-05-01 00:00:00

abstract：:We have determined the three-dimensional structure of a non-selfcomplementary nonanucleotide duplex which contains an abasic (apyrimidinic) site in the centre, i.e. a deoxyribose residue opposite an adenosine. The majority of the base and sugar proton resonances were assigned by NOESY, COSY and 2DQF spectra in D2O and...

journal_title：Nucleic acids research

authors： Cuniasse P,Sowers LC,Eritja R,Kaplan B,Goodman MF,Cognet JA,LeBret M,Guschlbauer W,Fazakerley GV

更新日期：1987-10-12 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 thymine analog 5-chlorouridine, first reported in the 1950s as anti-tumor agent, is known as an effective mutagen, clastogen and toxicant as well as an effective inducer of sister-chromatid exchange. Recently, the first microorganism with a chemically different genome was reported; the selected Escherichia coli st...

journal_title：Nucleic acids research

authors： Patra A,Harp J,Pallan PS,Zhao L,Abramov M,Herdewijn P,Egli M

更新日期：2013-02-01 00:00:00

abstract：:Poly(ADP-ribosyl)ation regulates numerous cellular processes like genome maintenance and cell death, thus providing protective functions but also contributing to several pathological conditions. Poly(ADP-ribose) (PAR) molecules exhibit a remarkable heterogeneity in chain lengths and branching frequencies, but the biol...

journal_title：Nucleic acids research

authors： Aberle L,Krüger A,Reber JM,Lippmann M,Hufnagel M,Schmalz M,Trussina IREA,Schlesiger S,Zubel T,Schütz K,Marx A,Hartwig A,Ferrando-May E,Bürkle A,Mangerich A

更新日期：2020-10-09 00:00:00

abstract：:A 14 kb maize DNA fragment carrying nuclear rRNA genes and spacer regions was isolated and characterised by restriction enzyme mapping. A complete 3020 bp long external spacer region was sequenced and revealed 9 tandemly arranged 200 bp long repeat units with high homology. The repeat units lie upstream from two promi...

journal_title：Nucleic acids research

authors： Toloczyki C,Feix G

更新日期：1986-06-25 00:00:00

abstract：:Beta-thalassemia is a genetic disorder caused by mutations in the beta-globin gene. Triplex-forming oligonucleotides and triplex-forming peptide nucleic acids (PNAs) have been shown to stimulate recombination in mammalian cells via site-specific binding and creation of altered helical structures that provoke DNA repai...

journal_title：Nucleic acids research

authors： Lonkar P,Kim KH,Kuan JY,Chin JY,Rogers FA,Knauert MP,Kole R,Nielsen PE,Glazer PM

更新日期：2009-06-01 00:00:00

abstract：:Telomerase is a ribonucleoprotein reverse transcriptase that synthesizes and maintains telomeric DNA. Studies of telomeres and telomerase are facilitated by the large number of linear DNA molecules found in ciliated protozoa, such as Tetrahymena thermophila. To examine the expression of telomerase, we investigated the...

journal_title：Nucleic acids research

authors： Hargrove BW,Bhattacharyya A,Domitrovich AM,Kapler GM,Kirk K,Shippen DE,Kunkel GR

更新日期：1999-11-01 00:00:00

abstract：:Nuclei isolated from cultured mouse and rat cell lines initiated pre-rRNA chains at the correct site and with the correct nucleotide specificity (A for mouse, G for rat). Nucleic acid filter hybridization and S1 nuclease mapping were used to analyze the RNA products initiated with nucleoside (beta-S)triphosphates. Ini...

journal_title：Nucleic acids research

authors： Zhang ZY,Thompson EA,Stallcup MR

更新日期：1984-11-12 00:00:00

abstract：:Model single base extension (SBE) genotyping reactions with individual deoxy-, dideoxy- and acyclonucleoside triphosphates are monitored by MALDI-TOF mass spectrometry. Three non-proofreading DNA polymerases display remarkably high misincorporation (up to 64% of correct incorporation) when extending primers with singl...

journal_title：Nucleic acids research

authors： Di Giusto D,King GC

更新日期：2003-02-01 00:00:00

abstract：:Denaturing gradient gel electrophoresis (DGGE) is based upon the different melting behaviors of DNA molecules in a chemical denaturant gradient according to their sequences. This technique has recently become a widespread tool to detect mutations. The introduction of a GC-clamp enables the detection of most single bas...

journal_title：Nucleic acids research

authors： Weber CK,Shaffer DJ,Sidman CL

更新日期：1991-06-25 00:00:00

abstract：:RNase P RNA (RPR), the catalytic subunit of the essential RNase P ribonucleoprotein, removes the 5' leader from precursor tRNAs. The ancestral eukaryotic RPR is a Pol III transcript generated with mature termini. In the branch of the arthropod lineage that led to the insects and crustaceans, however, a new allele aros...

journal_title：Nucleic acids research

authors： Palsule G,Gopalan V,Simcox A

更新日期：2019-09-19 00:00:00

abstract：:The bZip proteins GCN4 and C/EBP differ in their DNA binding specificities: GCN4 binds well to the pseudopalindromic AP1 site 5'-A4T3G2A1C0T1C2'A3'T4'-3' and to the palindromic ATF/CREB sequence 5'-A4T3G2A1-C0*G0'T1'C2'A3'T4'-3'; C/EBP preferentially recognizes the palindromic sequence 5'-A4T3T2G1C0*G0'C1'A2'-A3'T4'-3...

journal_title：Nucleic acids research

authors： Koldin B,Suckow M,Seydel A,von Wilcken-Bergmann B,Müller-Hill B

更新日期：1995-10-25 00:00:00

abstract：:Heterotrimeric eukaryotic/archaeal translation initiation factor 2 (e/aIF2) binds initiator methionyl-tRNA and plays a key role in the selection of the start codon on messenger RNA. tRNA binding was extensively studied in the archaeal system. The γ subunit is able to bind tRNA, but the α subunit is required to reach h...

journal_title：Nucleic acids research

authors： Naveau M,Lazennec-Schurdevin C,Panvert M,Dubiez E,Mechulam Y,Schmitt E

更新日期：2013-01-01 00:00:00

abstract：:Non-LTR retrotransposons are mobile genetic elements and play a major role in eukaryotic genome evolution and disease. Similar to retroviruses they encode a reverse transcriptase, but their genomic integration mechanism is fundamentally different, and they lack homologs of the retroviral nucleocapsid-forming protein G...

journal_title：Nucleic acids research

authors： Schneider AM,Schmidt S,Jonas S,Vollmer B,Khazina E,Weichenrieder O

更新日期：2013-12-01 00:00:00

abstract：:Eukaryotic topoisomerase II (topo II) is the essential decatenase of newly replicated chromosomes and the main relaxase of nucleosomal DNA. Apart from these general tasks, topo II participates in more specialized functions. In mammals, topo IIα interacts with specific RNA polymerases and chromatin-remodeling complexes...

journal_title：Nucleic acids research

authors： Nikolaou C,Bermúdez I,Manichanh C,García-Martinez J,Guigó R,Pérez-Ortín JE,Roca J

更新日期：2013-11-01 00:00:00

abstract：:Liquid-liquid phase separation plays an important role in a variety of cellular processes, including the formation of membrane-less organelles, the cytoskeleton, signalling complexes, and many other biological supramolecular assemblies. Studies on the molecular basis of phase separation in cells have focused on protei...

journal_title：Nucleic acids research

authors： Zhang Y,Yang M,Duncan S,Yang X,Abdelhamid MAS,Huang L,Zhang H,Benfey PN,Waller ZAE,Ding Y

更新日期：2019-12-16 00:00:00