Decreased expression of topoisomerase IIbeta in poly(ADP-ribose) polymerase-deficient cells.

abstract：:With the increasing number of protein structures available, there is a need for tools capable of automating the comparison of ensembles of structures, a common requirement in structural biology and bioinformatics. PSSweb is a web server for protein structural statistics. It takes as input an ensemble of PDB files of p...

journal_title：Nucleic acids research

authors： Gaillard T,Stote RH,Dejaegere A

更新日期：2016-07-08 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：:The CATH database of protein domain structures (http://www.biochem.ucl.ac.uk/bsm/cath_new) currently contains 34 287 domain structures classified into 1383 superfamilies and 3285 sequence families. Each structural family is expanded with domain sequence relatives recruited from GenBank using a variety of efficient seq...

journal_title：Nucleic acids research

authors： Pearl FM,Bennett CF,Bray JE,Harrison AP,Martin N,Shepherd A,Sillitoe I,Thornton J,Orengo CA

更新日期：2003-01-01 00:00:00

abstract：:A sensitive gel retention assay has been utilized to detect proteins from uninfected Hela nuclei which interact with the adenovirus type 2 enhancer. This assay has been employed to monitor fractionation of nuclear extracts. Three enhancer binding factors were resolved by chromatography on DEAE-Sepharose and one of the...

journal_title：Nucleic acids research

authors： Barrett P,Clark L,Hay RT

更新日期：1987-03-25 00:00:00

abstract：:Among a collection of 74 aprt mutations induced by treatment of plateau phase Chinese hamster ovary CHO cells with the radiomimetic DNA double-strand cleaving agent neocarzinostatin, nine were large-scale rearrangements. Molecular analysis indicated that all nine were highly conservative, non-homologous reciprocal exc...

journal_title：Nucleic acids research

authors： Wang P,Lee JW,Yu Y,Turner K,Zou Y,Jackson-Cook CK,Povirk LF

更新日期：2002-06-15 00:00:00

abstract：:Dlx2, Lymphoid Enhancer Factor (Lef-1) and Msx2 transcription factors are required for several developmental processes. To understand the control of gene expression by these factors, chromatin immunoprecipitation (ChIP) assays identified Msx2 as a downstream target of Dlx2 and Lef-1. Dlx2 activates the Msx2 promoter i...

journal_title：Nucleic acids research

authors： Diamond E,Amen M,Hu Q,Espinoza HM,Amendt BA

更新日期：2006-01-01 00:00:00

abstract：:The universal L-shaped tertiary structure of tRNAs is maintained with the help of nucleotide modifications within the D- and T-loops, and these modifications are most extensive within hyperthermophilic species. The obligate-commensal Nanoarchaeum equitans and its phylogenetically-distinct host Ignicoccus hospitalis gr...

journal_title：Nucleic acids research

authors： Rose S,Auxilien S,Havelund JF,Kirpekar F,Huber H,Grosjean H,Douthwaite S

更新日期：2020-07-09 00:00:00

abstract：:We describe a method for anchoring bacteriophage lambda DNA by one end to gold by Au-biotin-streptavidin-biotin-DNA bonds. DNA anchored to a microfabricated Au line could be aligned and stretched in flow and electric fields. The anchor was shown to resist a force of at least 11 pN, a linkage strong enough to allow DNA...

journal_title：Nucleic acids research

authors： Zimmermann RM,Cox EC

更新日期：1994-02-11 00:00:00

abstract：:We have developed an improved method for photofootprinting in vivo which utilizes the thermostable DNA polymerase from T. aquaticus (Taq) in a primer extension assay. UV light is used to introduce photoproducts into the genomic DNA of intact yeast cells. The photoproducts are then detected and mapped at the nucleotide...

journal_title：Nucleic acids research

authors： Axelrod JD,Majors J

更新日期：1989-01-11 00:00:00

abstract：:By successively assembling genetic parts such as BioBrick according to grammatical models, complex genetic constructs composed of dozens of functional blocks can be built. However, usually every category of genetic parts includes a few or many parts. With increasing quantity of genetic parts, the process of assembling...

journal_title：Nucleic acids research

authors： Fang G,Zhang S,Dong Y

更新日期：2017-12-15 00:00:00

abstract：:7,8-Dihydro-8-oxo-deoxyguanosine (8oxodG) is a highly premutagenic DNA lesion due to its ability to mispair with adenine. Schizosaccharomyces pombe lacks homologs for relevant enzymes that repair 8oxodG, which suggests that this lesion could be persistent and must be tolerated. Here we show that SpPol4, the unique Pol...

journal_title：Nucleic acids research

authors： Sastre-Moreno G,Sánchez A,Esteban V,Blanco L

更新日期：2014-09-01 00:00:00

abstract：:Previously we identified Rrp1 and Rrp2 as two proteins required for the Sfr1/Swi5-dependent branch of homologous recombination (HR) in Schizosaccharomyces pombe. Here we use a yeast two-hybrid approach to demonstrate that Rrp1 and Rrp2 can interact with each other and with Swi5, an HR mediator protein. Rrp1 and Rrp2 f...

journal_title：Nucleic acids research

authors： Dziadkowiec D,Kramarz K,Kanik K,Wisniewski P,Carr AM

更新日期：2013-09-01 00:00:00

abstract：:Transcription factors are important gene regulators with distinctive roles in development, cell signaling and cell cycling, and they have been associated with many diseases. The ConTra v3 web server allows easy visualization and exploration of predicted transcription factor binding sites (TFBSs) in any genomic region ...

journal_title：Nucleic acids research

authors： Kreft L,Soete A,Hulpiau P,Botzki A,Saeys Y,De Bleser P

更新日期：2017-07-03 00:00:00

abstract：:The E.coli ada gene protein coding region has been ligated into an extrachromosomally replicating yeast expression vector downstream of the yeast alcohol dehydrogenase gene promoter region to produce pADH06C. The yeast strains SX46A, 7799-4B and VV-6 are deficient in endogenous O6-alkylguanine-DNA-alkyltransferase and...

journal_title：Nucleic acids research

authors： Brozmanova J,Kleibl K,Vlckova V,Skorvaga M,Cernakova L,Margison GP

更新日期：1990-01-25 00:00:00

abstract：:DNA methylation plays an important role in many biological processes. Existing epigenome-wide association studies (EWAS) have successfully identified aberrantly methylated genes in many diseases and disorders with most studies focusing on analysing methylation sites one at a time. Incorporating prior biological inform...

journal_title：Nucleic acids research

authors： Ruan P,Shen J,Santella RM,Zhou S,Wang S

更新日期：2016-09-19 00:00:00

abstract：:Sodium is one of the most abundant metals in the environment and in biology, playing critical ecological and physiological roles. Na+ is also the most common buffer salt for nucleic acids research, while its specific interaction with DNA has yet to be fully studied. Herein, we probe a highly selective and robust Na+ a...

journal_title：Nucleic acids research

authors： Zhou W,Ding J,Liu J

更新日期：2016-12-01 00:00:00

abstract：:The early DNa products of reverse transcription have been analyzed from reconstructed reactions containing avian myeloblastosis virus 35S RNA . tRNAtrp complex and highly purified reverse transcriptase. We describe conditions for the synthesis of genome-length complementary DNA and two discrete species of plus strand ...

journal_title：Nucleic acids research

authors： Olsen JC,Watson KF

更新日期：1982-02-11 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 EcoRV DNA-(adenine-N(6))-methyltransferase (M.EcoRV) specifically modifies the first adenine residue within GATATC sequences. During catalysis, the enzyme flips its target base out of the DNA helix and binds it into a target base binding pocket which is formed in part by Lys16 and Tyr196. A cytosine residue is acc...

journal_title：Nucleic acids research

authors： Roth M,Jeltsch A

更新日期：2001-08-01 00:00:00

abstract：:In addition to maintaining the GenBank(R) nucleic acid sequence database, the National Center for Biotechnology Information (NCBI) provides analysis and retrieval resources for the data in GenBank and other biological data available through NCBI's web site. NCBI resources include Entrez, the Entrez Programming Utiliti...

journal_title：Nucleic acids research

authors： Wheeler DL,Barrett T,Benson DA,Bryant SH,Canese K,Chetvernin V,Church DM,Dicuccio M,Edgar R,Federhen S,Feolo M,Geer LY,Helmberg W,Kapustin Y,Khovayko O,Landsman D,Lipman DJ,Madden TL,Maglott DR,Miller V,Ostell J,

更新日期：2008-01-01 00:00:00

abstract：:Underlying higher order chromatin organization are Structural Maintenance of Chromosomes (SMC) complexes, large protein rings that entrap DNA. The molecular mechanism by which SMC complexes organize chromatin is as yet incompletely understood. Two prominent models posit that SMC complexes actively extrude DNA loops (l...

journal_title：Nucleic acids research

authors： Gerguri T,Fu X,Kakui Y,Khatri BS,Barrington C,Bates PA,Uhlmann F

更新日期：2021-01-12 00:00:00

abstract：:Aspartic acid residues comprising the -D-(aa) n -Y-L-D-D- DNA polymerase active site triad of reverse transcriptase from the Saccharomyces cerevisiae long terminal repeat-retrotransposon Ty3 (Asp151, Asp213 and Asp214) were evaluated via site-directed mutagenesis. An Asp151-->Glu substitution showed a dramatic decreas...

journal_title：Nucleic acids research

authors： Bibillo A,Lener D,Klarmann GJ,Le Grice SF

更新日期：2005-01-12 00:00:00

abstract：:RNArchitecture is a database that provides a comprehensive description of relationships between known families of structured non-coding RNAs, with a focus on structural similarities. The classification is hierarchical and similar to the system used in the SCOP and CATH databases of protein structures. Its central leve...

journal_title：Nucleic acids research

authors： Boccaletto P,Magnus M,Almeida C,Zyla A,Astha A,Pluta R,Baginski B,Jankowska E,Dunin-Horkawicz S,Wirecki TK,Boniecki MJ,Stefaniak F,Bujnicki JM

更新日期：2018-01-04 00:00:00

abstract：:Motif3D is a web-based protein structure viewer designed to allow sequence motifs, and in particular those contained in the fingerprints of the PRINTS database, to be visualised on three-dimensional (3D) structures. Additional functionality is provided for the rhodopsin-like G protein-coupled receptors, enabling finge...

journal_title：Nucleic acids research

authors： Gaulton A,Attwood TK

更新日期：2003-07-01 00:00:00

abstract：:The Mouse Genome Database (MGD: http://www.informatics.jax.org) is the primary community data resource for the laboratory mouse. It provides a highly integrated and highly curated system offering a comprehensive view of current knowledge about mouse genes, genetic markers and genomic features as well as the associatio...

journal_title：Nucleic acids research

authors： Blake JA,Eppig JT,Kadin JA,Richardson JE,Smith CL,Bult CJ,the Mouse Genome Database Group.

更新日期：2017-01-04 00:00:00

abstract：:To achieve drug resistance Leishmania parasite alters gene copy number by using its repeated sequences widely distributed through the genome. Even though homologous recombination (HR) is ascribed to maintain genome stability, this eukaryote exploits this potent mechanism driven by the Rad51 recombinase to form benefic...

journal_title：Nucleic acids research

authors： Genois MM,Plourde M,Éthier C,Roy G,Poirier GG,Ouellette M,Masson JY

更新日期：2015-03-11 00:00:00

abstract：:Plant orthologs of the yeast sucrose non-fermenting (Snf1) kinase and mammalian AMP-activated protein kinase (AMPK) represent an emerging class of important regulators of metabolic and stress signalling. The catalytic alpha-subunits of plant Snf1-related kinases (SnRKs) interact in the yeast two-hybrid system with dif...

journal_title：Nucleic acids research

authors： Ferrando A,Koncz-Kálmán Z,Farràs R,Tiburcio A,Schell J,Koncz C

更新日期：2001-09-01 00:00:00

abstract：:The lambdagt clones containing fragments of the Drosophila melanogaster genome were prepared and characterized by hybridization of their DNA with (I) lambdagt-cRNA; (2) lambdaC-cRNA; (3) Dm-cRNA; (4) the mRNA of D.melanogaster culture cells and (5) the stable cytoplasmic poly (A) RNA from the same source. The techniqu...

journal_title：Nucleic acids research

authors： Ilyin YV,Tchurikov NA,Georgiev

更新日期：1976-08-01 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：:The rolling circle DNA replication structures generated by the in vitro phage T4 replication system were analyzed using two-dimensional agarose gels. Replication structures were generated in the presence or absence of T4 primase (gp61), permitting the analysis of replication forks with either duplex or single-stranded...

journal_title：Nucleic acids research

authors： Belanger KG,Mirzayan C,Kreuzer HE,Alberts BM,Kreuzer KN

更新日期：1996-06-01 00:00:00