Human PAML browser: a database of positive selection on human genes using phylogenetic methods.

abstract：:A synthetic gene for somatomedin C, a human growth factor, has been assembled by a single ligation of 23 oligodeoxyribonucleotides, which were chemically synthesized by an improved solid phase phosphotriester method. ...

journal_title：Nucleic acids research

authors： Sproat BS,Gait MJ

更新日期：1985-04-25 00:00:00

abstract：:We have established a sensitive, monoclonal antibody (Mab)-based procedure permitting the selective enrichment of sequences containing the miscoding alkylation product O6-ethylguanine (O6-EtGua) from mammalian DNA. H5 rat hepatoma cells were reacted with the N-nitroso carcinogen N-ethyl-N-nitrosourea in vitro, to give...

journal_title：Nucleic acids research

authors： Hochleitner K,Thomale J,Nikitin AYu,Rajewsky MF

更新日期：1991-08-25 00:00:00

abstract：:Insertion of DNA containing PR, the early rightward promoter of bacteriophage lambda, is lethal to M13-derived vectors when the promoter directs transcription (using the '+' strand as template) toward the M13 origin of replication (ori). Lethality can be relieved by mutation of PR, repression of the promoter by the la...

journal_title：Nucleic acids research

authors： Brown S,Ferm J,Woody S,Gussin G

更新日期：1990-10-25 00:00:00

abstract：:Multicellular organismal development is controlled by a complex network of transcription factors, promoters and enhancers. Although reliable computational and experimental methods exist for enhancer detection, prediction of their target genes remains a major challenge. On the basis of available literature and ChIP-seq...

journal_title：Nucleic acids research

authors： Rödelsperger C,Guo G,Kolanczyk M,Pletschacher A,Köhler S,Bauer S,Schulz MH,Robinson PN

更新日期：2011-04-01 00:00:00

abstract：:The chromatographic profiles of isoaccepting tRNAs were analyzed at five time points during the 96 hr, dimethylsulfoxide induced, erythroid-like differentiation of Friend leukemia cells. Sixty-four isoaccepting species of tRNA for 16 amino acids were resolved by RPC-5 chromatography. The relative amounts of tRNAphe, t...

journal_title：Nucleic acids research

authors： Lin VK,Agris PF

更新日期：1980-08-11 00:00:00

abstract：:Polyadenylation is a co-transcriptional process that modifies mRNA 3'-ends in eukaryotes. In yeast, CF IA and CPF constitute the core 3'-end maturation complex. CF IA comprises Rna14p, Rna15p, Pcf11p and Clp1p. CF IA interacts with the C-terminal domain of RNA Pol II largest subunit via Pcf11p which links pre-mRNA 3'-...

journal_title：Nucleic acids research

authors： Haddad R,Maurice F,Viphakone N,Voisinet-Hakil F,Fribourg S,Minvielle-Sébastia L

更新日期：2012-02-01 00:00:00

abstract：:Camptothecin (CPT), a plant alkaloid with antitumor activity, is a specific inhibitor of eukaryotic DNA topoisomerase I. We have previously isolated and characterized a CPT-resistant topoisomerase I isolated from a CPT-resistant human leukemia cell line, CPT-K5. cDNA clones of topoisomerase I were isolated from the CP...

journal_title：Nucleic acids research

authors： Tamura H,Kohchi C,Yamada R,Ikeda T,Koiwai O,Patterson E,Keene JD,Okada K,Kjeldsen E,Nishikawa K

更新日期：1991-01-11 00:00:00

abstract：:Although secondary structure predictions of an individual RNA sequence have been widely used in a number of sequence analyses of RNAs, accuracy is still limited. Recently, we proposed a method (called 'CentroidHomfold'), which includes information about homologous sequences into the prediction of the secondary structu...

journal_title：Nucleic acids research

authors： Hamada M,Yamada K,Sato K,Frith MC,Asai K

更新日期：2011-07-01 00:00:00

abstract：:Equilibrium and kinetics of thermal melting of yeast 5S ribosomal RNA in aqueous NaCl with or without Mg2+ were investigated by differential thermal melting and temperature jump methods. Two peaks (1 and 2) and a shoulder were observed in each of melting curves at ionic strength I=0.002-0.5 and linearity between each ...

journal_title：Nucleic acids research

authors： Ohta S,Maruyama S,Nitta K,Sugai S

更新日期：1983-05-25 00:00:00

abstract：:Human foamy or spuma virus (HFV) codes for a distinct set of pol gen products. To determine the minimal requirements for the HFV enzymatic activities, defined residues of the reverse transcriptase (RT) and ribo-nuclease H (RNase H) domain of the HFV pol gene were mutated by site-specific PCR mutagenesis. The mutant ge...

journal_title：Nucleic acids research

authors： Kögel D,Aboud M,Flügel RM

更新日期：1995-07-25 00:00:00

abstract：:GenBank® (https://www.ncbi.nlm.nih.gov/genbank/) is a comprehensive, public database that contains 9.9 trillion base pairs from over 2.1 billion nucleotide sequences for 478 000 formally described species. Daily data exchange with the European Nucleotide Archive and the DNA Data Bank of Japan ensures worldwide coverag...

journal_title：Nucleic acids research

authors： Sayers EW,Cavanaugh M,Clark K,Pruitt KD,Schoch CL,Sherry ST,Karsch-Mizrachi I

更新日期：2021-01-08 00:00:00

abstract：:DNA fragments containing mispaired and modified bases, bulges, lesions and specific sequences have altered conformation. Methods for separating complex samples of DNA fragments based on conformation but independent of length have many applications, including (i) separation of mismatched or unmatched DNA fragments from...

journal_title：Nucleic acids research

authors： Gunnarsson GH,Thormar HG,Gudmundsson B,Akesson L,Jonsson JJ

更新日期：2004-02-03 00:00:00

abstract：:Reverse gyrase is a peculiar DNA topoisomerase, specific of hyperthermophilic Archaea and Bacteria, which has the unique ability of introducing positive supercoiling into DNA molecules. Although the function of the enzyme has not been established directly, it has been suggested to be involved in DNA protection and rep...

journal_title：Nucleic acids research

authors： Valenti A,Napoli A,Ferrara MC,Nadal M,Rossi M,Ciaramella M

更新日期：2006-04-14 00:00:00

abstract：:Poly(pyrimidine) . poly(purine) tracts have been discovered in the 5'-flanking regions of many eucaryotic genes. They may be involved in the regulation of expression since they can be mapped to the nuclease-sensitive sites of active chromatin. We have found that poly(pyrimidine) . poly(purine) DNAs which contain 5-met...

journal_title：Nucleic acids research

authors： Lee JS,Woodsworth ML,Latimer LJ,Morgan AR

更新日期：1984-08-24 00:00:00

abstract：:Planarian flatworms are in the midst of a renaissance as a model system for regeneration and stem cells. Besides two well-studied model species, hundreds of species exist worldwide that present a fascinating diversity of regenerative abilities, tissue turnover rates, reproductive strategies and other life history trai...

journal_title：Nucleic acids research

authors： Brandl H,Moon H,Vila-Farré M,Liu SY,Henry I,Rink JC

更新日期：2016-01-04 00:00:00

abstract：:A multivariate statistical method called correspondence analysis was used to examine the codon usage of one-hundred-and-one nuclear genes of maize (Zea mays L.). Forty percent of the variation in codon usage was due to bias toward G or C-ending versus A or U-ending codons. Differences in levels of G-ending codons show...

journal_title：Nucleic acids research

authors： Fennoy SL,Bailey-Serres J

更新日期：1993-11-25 00:00:00

abstract：:Large-scale automatic annotation of protein sequences remains challenging in postgenomics era. E1DS is designed for annotating enzyme sequences based on a repository of 1D signatures. The employed sequence signatures are derived using a novel pattern mining approach that discovers long motifs consisted of several sequ...

journal_title：Nucleic acids research

authors： Chien TY,Chang DT,Chen CY,Weng YZ,Hsu CM

更新日期：2008-07-01 00:00:00

abstract：:Cell-free extracts employed as chromatin assembly systems contain a myriad of proteins, polyanions and nucleic acids. The roles of ATP, MgCl2 and other cofactors in the catalysis of nucleosome formation by the Xenopus laevis oocyte S-150 have yet to be established unequivocally. In this study we examine the influence ...

journal_title：Nucleic acids research

authors： Sekiguchi JM,Kmiec EB

更新日期：1992-02-25 00:00:00

abstract：:Natural antisense transcripts are at least partially complementary to their sense transcripts. Cis-Sense/Antisense pairs (cis-SAs) have been extensively characterized and known to play diverse regulatory roles, whereas trans-Sense/Antisense pairs (trans-SAs) in animals are poorly studied. We identified long trans-SAs ...

journal_title：Nucleic acids research

authors： Li JT,Zhang Y,Kong L,Liu QR,Wei L

更新日期：2008-09-01 00:00:00

abstract：:All exchangeable protons in a short DNA helix, d(CG)3 sodium salt, have been studied by proton nuclear magnetic resonance. The cytidine and guanosine amino protons have been assigned for the first time. As a function of temperature the cytidine amino protons and the imino protons behave very similarly, their relaxatio...

journal_title：Nucleic acids research

authors： Fazakerley GV,van der Marel GA,van Boom JH,Guschlbauer W

更新日期：1984-11-12 00:00:00

abstract：:Organisms exposed to reactive oxygen species, generated endogenously during respiration or by environmental conditions, undergo oxidative stress. Stress response can either repair the damage or activate one of the programmed cell death (PCD) mechanisms, for example apoptosis, and finally end in cell death. One strikin...

journal_title：Nucleic acids research

authors： Mroczek S,Kufel J

更新日期：2008-05-01 00:00:00

abstract：:Bacterial small regulatory RNAs (sRNAs) are the most abundant class of post-transcriptional regulators and have been well studied in Gram-negative bacteria. Little is known about the functions and mechanisms of sRNAs in high GC Gram-positive bacteria including Mycobacterium and Streptomyces. Here, we performed an in-d...

journal_title：Nucleic acids research

authors： Mai J,Rao C,Watt J,Sun X,Lin C,Zhang L,Liu J

更新日期：2019-05-07 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：:enod40 is a plant gene that participates in the regulation of symbiotic interaction between leguminous plants and bacteria or fungi. Furthermore, it has been suggested to play a general role in non-symbiotic plant development. Although enod40 seems to have multiple functions, being present in many land plants, the mol...

journal_title：Nucleic acids research

authors： Gultyaev AP,Roussis A

更新日期：2007-01-01 00:00:00

abstract：:The Genomes Online Database (GOLD) (https://gold.jgi.doe.gov) is a manually curated data management system that catalogs sequencing projects with associated metadata from around the world. In the current version of GOLD (v.6), all projects are organized based on a four level classification system in the form of a Stud...

journal_title：Nucleic acids research

authors： Mukherjee S,Stamatis D,Bertsch J,Ovchinnikova G,Verezemska O,Isbandi M,Thomas AD,Ali R,Sharma K,Kyrpides NC,Reddy TB

更新日期：2017-01-04 00:00:00

abstract：:We present the results of in vitro binding studies aimed at defining the key recognition elements on the MS2 RNA translational operator (TR) essential for complex formation with coat protein. We have used chemically synthesized operators carrying modified functional groups at defined nucleotide positions, which are es...

journal_title：Nucleic acids research

authors： Stockley PG,Stonehouse NJ,Murray JB,Goodman ST,Talbot SJ,Adams CJ,Liljas L,Valegård K

更新日期：1995-07-11 00:00:00

abstract：:APOBEC3G (A3G), a host protein that inhibits HIV-1 reverse transcription and replication in the absence of Vif, displays cytidine deaminase and single-stranded (ss) nucleic acid binding activities. HIV-1 nucleocapsid protein (NC) also binds nucleic acids and has a unique property, nucleic acid chaperone activity, whic...

journal_title：Nucleic acids research

authors： Iwatani Y,Chan DS,Wang F,Stewart-Maynard K,Sugiura W,Gronenborn AM,Rouzina I,Williams MC,Musier-Forsyth K,Levin JG

更新日期：2007-01-01 00:00:00

abstract：:An endo-exonuclease has been purified from cultured monkey (CV-1) cells. The enzyme which was purified to near homogeneity to be a 65 kDa monomeric protein. The single-strand DNase activity is endonucleolytic and nonprocessive, whereas the double-strand DNase activity is exonucleolytic and processive. The enzyme was a...

journal_title：Nucleic acids research

authors： Couture C,Chow TY

更新日期：1992-08-25 00:00:00

abstract：:The rapidly growing amount of genomic sequence data being generated and made publicly available necessitate the development of new data storage and archiving methods. The vast amount of data being shared and manipulated also create new challenges for network resources. Thus, developing advanced data compression techni...

journal_title：Nucleic acids research

authors： Chanda P,Elhaik E,Bader JS

更新日期：2012-11-01 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