ZFP57 maintains the parent-of-origin-specific expression of the imprinted genes and differentially affects non-imprinted targets in mouse embryonic stem cells.

abstract：:Splicing of mammalian introns requires that the intron possess at least 80 nucleotides. This length requirement presumably reflects the constraints of accommodating multiple snRNPs simultaneously in the same intron. In the free-living nematode, C. elegans, introns typically are 45 to 55 nucleotides in length. In this ...

journal_title：Nucleic acids research

authors： Ogg SC,Anderson P,Wickens MP

更新日期：1990-01-11 00:00:00

abstract：:GC-AG introns represent 0.7% of total human pre-mRNA introns. To study the function of GC-AG introns in splicing regulation, 196 cDNA-confirmed GC-AG introns were identified in Caenorhabditis elegans. These represent 0.6% of the cDNA- confirmed intron data set for this organism. Eleven of these GC-AG introns are invol...

journal_title：Nucleic acids research

authors： Farrer T,Roller AB,Kent WJ,Zahler AM

更新日期：2002-08-01 00:00:00

abstract：:Thermally induced structural transition in the d(TTTTATAATAAA) d(TTTATTATAAAA) heteroduplex is characterized by UV-spectroscopy and differential scanning calorimetry. At low salt (less than 0.1 M) the occurrence of a cooperative transition in the lower temperature range, followed by a broad transition connected with s...

journal_title：Nucleic acids research

authors： Bolewska K,Zielenkiewicz A,Wierzchowski KL

更新日期：1984-04-11 00:00:00

abstract：:Chloroplast DNA, isolated from a synchronized culture of Chlamydomonas reinhardii, was digested with restriction endonucleases and examined in the electron microscope. Restriction fragments containing displacement loops (D-loop) were photographed and measured to determine the position of replicated sequences in relati...

journal_title：Nucleic acids research

authors： Waddell J,Wang XM,Wu M

更新日期：1984-05-11 00:00:00

abstract：:Conserved in a variety of evolutionarily divergent plant species, LOB DOMAIN (LBD) genes define a large, plant-specific family of largely unknown function. LBD genes have been implicated in a variety of developmental processes in plants, although to date, relatively few members have been assigned functions. LBD protei...

journal_title：Nucleic acids research

authors： Husbands A,Bell EM,Shuai B,Smith HM,Springer PS

更新日期：2007-01-01 00:00:00

abstract：:Sox proteins belong to the HMG box superfamily of DNA-binding proteins and are found throughout the animal kingdom. They are involved in the regulation of such diverse developmental processes as germ layer formation, organ development and cell type specifi-cation. Hence, deletion or mutation of Sox proteins often resu...

journal_title：Nucleic acids research

authors： Wegner M

更新日期：1999-03-15 00:00:00

abstract：:The database of Clusters of Orthologous Groups of proteins (COGs), which represents an attempt on a phylogenetic classification of the proteins encoded in complete genomes, currently consists of 2791 COGs including 45 350 proteins from 30 genomes of bacteria, archaea and the yeast Saccharomyces cerevisiae (http://www....

journal_title：Nucleic acids research

authors： Tatusov RL,Natale DA,Garkavtsev IV,Tatusova TA,Shankavaram UT,Rao BS,Kiryutin B,Galperin MY,Fedorova ND,Koonin EV

更新日期：2001-01-01 00:00:00

abstract：:Exposure of pyrimidines of DNA to ionizing radiation under aerobic conditions or oxidizing agents results in attack on the 5,6 double bond of the pyrimidine ring or on the exocyclic 5-methyl group. The primary product of oxidation of the 5,6 double bond of thymine is thymine glycol, while oxidation of the 5-methyl gro...

journal_title：Nucleic acids research

authors： Zuo S,Boorstein RJ,Teebor GW

更新日期：1995-08-25 00:00:00

abstract：:Stress response mechanisms that modulate the dynamics of tRNA degradation and accumulation from the cytoplasm to the nucleus have been studied in yeast, the rat hepatoma and human cells. In the current study, we investigated tRNA degradation and accumulation in HeLa cells under various forms of stress. We found that i...

journal_title：Nucleic acids research

authors： Watanabe K,Miyagawa R,Tomikawa C,Mizuno R,Takahashi A,Hori H,Ijiri K

更新日期：2013-04-01 00:00:00

abstract：:The structural simplicity and ability to capture serial correlations make Markov models a popular modeling choice in several genomic analyses, such as identification of motifs, genes and regulatory elements. A critical, yet relatively unexplored, issue is the determination of the order of the Markov model. Most biolog...

journal_title：Nucleic acids research

authors： Narlikar L,Mehta N,Galande S,Arjunwadkar M

更新日期：2013-02-01 00:00:00

abstract：:Motor proteins that translocate on nucleic acids are key players in gene expression and maintenance. While the function of these proteins is diverse, they are driven by highly conserved core motor domains. In transcription-coupled DNA repair, motor activity serves to remove RNA polymerase stalled on damaged DNA, makin...

journal_title：Nucleic acids research

authors： Murphy MN,Gong P,Ralto K,Manelyte L,Savery NJ,Theis K

更新日期：2009-10-01 00:00:00

abstract：:Two DNA hexadecamers containing one central 5'-GC-3' base step have been examined by footprinting methodology in the presence and absence of actinomycin D. The results of these studies, coupled with imino proton NMR measurements indicate that the antitumor drug causes a change in DNA conformation at a distance from th...

journal_title：Nucleic acids research

authors： Huang YQ,Rehfuss RP,LaPlante SR,Boudreau E,Borer PN,Lane MJ

更新日期：1988-12-09 00:00:00

abstract：:DNA breaks occur during many processes in mammalian cells, including recombination, repair, mutagenesis and apoptosis. Here we report a simple and rapid method for assaying DNA breaks and identifying DNA breaksites. Breaksites are first tagged and amplified by ligation-mediated PCR (LM-PCR), using nested PCR primers t...

journal_title：Nucleic acids research

authors： Kong Q,Maizels N

更新日期：2001-03-15 00:00:00

abstract：:The 'POU' (acronym of Pit-1, Oct-1, Unc-86) family of transcription factors share a common DNA-binding domain of approximately 160 residues, comprising so-called 'POUs' and 'POUh' sub-domains connected by a flexible linker. The importance of POU proteins as developmental regulators and tumor-promoting agents is due to...

journal_title：Nucleic acids research

authors： Alazard R,Mourey L,Ebel C,Konarev PV,Petoukhov MV,Svergun DI,Erard M

更新日期：2007-01-01 00:00:00

abstract：:Bgee is a database to retrieve and compare gene expression patterns in multiple animal species, produced by integrating multiple data types (RNA-Seq, Affymetrix, in situ hybridization, and EST data). It is based exclusively on curated healthy wild-type expression data (e.g., no gene knock-out, no treatment, no disease...

journal_title：Nucleic acids research

authors： Bastian FB,Roux J,Niknejad A,Comte A,Fonseca Costa SS,de Farias TM,Moretti S,Parmentier G,de Laval VR,Rosikiewicz M,Wollbrett J,Echchiki A,Escoriza A,Gharib WH,Gonzales-Porta M,Jarosz Y,Laurenczy B,Moret P,Person E,

更新日期：2021-01-08 00:00:00

abstract：:The genes encoding the RNA subunit of ribonuclease P from the unicellular cyanobacterium Synechocystis sp. PCC 6803, and from the heterocyst-forming strains Anabaena sp. PCC 7120 and Calothrix sp. PCC 7601 were cloned using the homologous gene from Anacystis nidulans (Synechococcus sp. PCC 6301) as a probe. The genes ...

journal_title：Nucleic acids research

authors： Vioque A

更新日期：1992-12-11 00:00:00

abstract：:Nuclear organization of chromatin is an important level of genome regulation with positional changes of genes occurring during reprogramming. Inherent variability of biological specimens, wide variety of sample preparation and imaging conditions, though pose significant challenges to data analysis and comparison. Here...

journal_title：Nucleic acids research

authors： Jost KL,Haase S,Smeets D,Schrode N,Schmiedel JM,Bertulat B,Herzel H,Cremer M,Cardoso MC

更新日期：2011-09-01 00:00:00

abstract：:Proper expression of the genes of the human beta-globin gene locus requires the associated locus control region (LCR). Structurally, the LCR is defined by the presence of four domains of erythroid-specific chromatin structure. These domains, which have been characterized as DNase I hypersensitive sites (HSs), comprise...

journal_title：Nucleic acids research

authors： Pomerantz O,Goodwin AJ,Joyce T,Lowrey CH

更新日期：1998-12-15 00:00:00

abstract：:Overexpression of the flap endonuclease FEN1 has been observed in a variety of cancer types and is a marker for poor prognosis. To better understand the cellular consequences of FEN1 overexpression we utilized a model of its Saccharomyces cerevisiae homolog, RAD27. In this system, we discovered that flap endonuclease ...

journal_title：Nucleic acids research

authors： Becker JR,Gallo D,Leung W,Croissant T,Thu YM,Nguyen HD,Starr TK,Brown GW,Bielinsky AK

更新日期：2018-06-20 00:00:00

abstract：:Hepatitis C virus (HCV) translation initiation is directed by an internal ribosome entry site (IRES) and regulated by distant regions at the 3'-end of the viral genome. Through a combination of improved RNA chemical probing methods, SHAPE structural analysis and screening of RNA accessibility using antisense oligonucl...

journal_title：Nucleic acids research

authors： Romero-López C,Barroso-Deljesus A,García-Sacristán A,Briones C,Berzal-Herranz A

更新日期：2012-12-01 00:00:00

abstract：:We have developed a new bioinformatics approach called ECMFinder (Evolutionary Conserved Motif Finder). This program searches for a given DNA motif within the entire genome of one species and uses the gene association information of a potential transcription factor-binding site (TFBS) to screen the homologous regions ...

journal_title：Nucleic acids research

authors： Kang K,Chung JH,Kim J

更新日期：2009-04-01 00:00:00

abstract：:The DNA sequence of a 354 basepair EcoRI-HindIII fragment of plasmid pMB9 which has originally been derived from plasmid pSC101 has been resolved. This fragment contains a promoter for transcription directed towards the EcoRI site. Escherichia coli RNA polymerase binds to a region within the EcoRI-HindIII fragment whi...

journal_title：Nucleic acids research

authors： Pannekoek H,Maat J,van den Berg E,Noordermeer I

更新日期：1980-04-11 00:00:00

abstract：:Bleomycin B(2)(BLM) in the presence of iron [Fe(II)] and O(2)catalyzes single-stranded (ss) and double-stranded (ds) cleavage of DNA. Electrospray ionization ion trap mass spectrometry was used to monitor these cleavage processes. Two duplex oligonucleotides containing an ethylene oxide tether between both strands wer...

journal_title：Nucleic acids research

authors： Harsch A,Marzilli LA,Bunt RC,Stubbe J,Vouros P

更新日期：2000-05-01 00:00:00

abstract：:We have sequenced the 480 base pair (bp) repeating unit of the 5S RNA genes of the Dipteran fly Calliphora erythrocephala and compared this sequence to the three known 5S RNA gene sequences from the Dipteran Genus Drosophila (1,2). A striking series of five perfectly conserved homologies identically positioned within ...

journal_title：Nucleic acids research

authors： Rubacha A,Sumner W 3rd,Richter L,Beckingham K

更新日期：1984-11-12 00:00:00

abstract：:The cellular response to DNA double-strand breaks (DSBs) is initiated by the Mre11-Rad50-Xrs2 (MRX) complex that has structural and catalytic functions. MRX association at DSBs is counteracted by Rif2, which is known to interact with Rap1 that binds telomeric DNA through two tandem Myb-like domains. Whether and how Ra...

journal_title：Nucleic acids research

authors： Bonetti D,Rinaldi C,Vertemara J,Notaro M,Pizzul P,Tisi R,Zampella G,Longhese MP

更新日期：2020-03-18 00:00:00

abstract：:Bacterial small RNAs (sRNAs) are a heterogeneous group of post-transcriptional regulators that often act at the heart of large networks. Hundreds of sRNAs have been discovered by genome-wide screens and most of these sRNAs exert their functions by base-pairing with target mRNAs. However, studies addressing the molecul...

journal_title：Nucleic acids research

authors： Fröhlich KS,Förstner KU,Gitai Z

更新日期：2018-11-16 00:00:00

abstract：:Replication factor C (RF-C) is a eukaryotic heteropentameric protein required for DNA replication and repair processes by loading proliferating cell nuclear antigen (PCNA) onto DNA in an ATP-dependent manner. Prior to loading PCNA, RF-C binds to DNA. This binding is thought to be restricted to a specific DNA structure...

journal_title：Nucleic acids research

authors： Keller RC,Mossi R,Maga G,Wellinger RE,Hübscher U,Sogo JM

更新日期：1999-09-01 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：:Mild ultraviolet irradiation of E. coli ribosomal subunits leads to the formation of a number of intra-RNA cross-links, in addition to the RNA-protein cross-links already reported (see refs. 9, 10). After partial ribonuclease digestion of the RNA from irradiated subunits, complexes containing these intra-RNA cross-lin...

journal_title：Nucleic acids research

authors： Zwieb C,Brimacombe R

更新日期：1980-06-11 00:00:00

abstract：:A study of the synthesis of oligothymidylates via phosphotriester intermediates on a polystyrene support is described. The sequence involves condensation of a phenyl nucleoside-3' -phosphorochloridate with the 5'-hydroxyl group of the carrier bound oligonucleotide derivative in the presence of 1-methylimidazole. Condi...

journal_title：Nucleic acids research

authors： Pless RC,Letsinger RL

更新日期：1975-06-01 00:00:00