Position-dependent effects of regioisomeric methylated adenine and guanine ribonucleosides on translation.

abstract：:With the high number of sequences and structures streaming in from genomic projects, there is a need for more powerful and sophisticated annotation tools. Most problematic of the annotation efforts is predicting gene and protein function. Over the past few years there has been considerable progress in automated protei...

journal_title：Nucleic acids research

authors： Friedberg I,Harder T,Godzik A

更新日期：2006-07-01 00:00:00

abstract：:Exposure to many endogenous and exogenous agents can give rise to DNA alkylation, which constitutes a major type of DNA damage. Among the DNA alkylation products, alkyl phosphotriesters have relatively high frequencies of occurrence and are resistant to repair in mammalian tissues. However, little is known about how t...

journal_title：Nucleic acids research

authors： Wu J,Wang P,Wang Y

更新日期：2018-05-04 00:00:00

abstract：:A strategy for DNA computing on surfaces using linked sets of 'DNA words' that are short oligonucleotides (16mers) is proposed. The 16mer words have the format 5'-FFFFvvvvvvvvFFFF-3' in which 4-8 bits of data are stored in 8 variable ('v') base locations, and the remaining fixed ('F') base locations are used as a word...

journal_title：Nucleic acids research

authors： Frutos AG,Liu Q,Thiel AJ,Sanner AM,Condon AE,Smith LM,Corn RM

更新日期：1997-12-01 00:00:00

abstract：:In eukaryotes, DNA is packaged into a basic unit, the nucleosome which consists of 147 bp of DNA wrapped around a histone octamer composed of two copies each of the histones H2A, H2B, H3 and H4. Nucleosome structures are diverse not only by histone variants, histone modifications, histone composition but also through ...

journal_title：Nucleic acids research

authors： Ngo TT,Ha T

更新日期：2015-04-30 00:00:00

abstract：:Here we examined the role of cellular vitamin C in genotoxicity of carcinogenic chromium(VI) that requires reduction to induce DNA damage. In the presence of ascorbate (Asc), low 0.2-2 microM doses of Cr(VI) caused 10-15 times more chromosomal breakage in primary human bronchial epithelial cells or lung fibroblasts. D...

journal_title：Nucleic acids research

authors： Reynolds M,Stoddard L,Bespalov I,Zhitkovich A

更新日期：2007-01-01 00:00:00

abstract：:Alternative splicing generates multiple transcript and protein isoforms from a single gene and controls transcript intracellular localization and stability by coupling to mRNA export and nonsense-mediated mRNA decay (NMD). RNA interference (RNAi) is a potent mechanism to modulate gene expression. However, its interact...

journal_title：Nucleic acids research

authors： Fuchs A,Riegler S,Ayatollahi Z,Cavallari N,Giono LE,Nimeth BA,Mutanwad KV,Schweighofer A,Lucyshyn D,Barta A,Petrillo E,Kalyna M

更新日期：2021-01-25 00:00:00

abstract：:To examine the influence of thyrotropin (TSH) on the thyroglobulin (Tgb) mRNA content, the latter was evaluated in the cytoplasm of hog thyroid cells cultured in the absence (control cells) or presence of TSH. The Tgb mRNA levels were determined by, (i) kinetics of hybridization to sheep Tgb cDNA, (ii) capacity of cod...

journal_title：Nucleic acids research

authors： Chebath J,Chabaud O,Mauchamp J

更新日期：1979-07-25 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：:No analogous nucleoside triphosphate was found which acts as well as ATP in binding to and supporting catalysis of leucyl-tRNA synthetase from Escherichia coli MRE 600. However, there are numerous nucleotides which are able to replace ATP, but with lower efficiency. The 6-amino group of the adenine ring and the 2'-hyd...

journal_title：Nucleic acids research

authors： Marutzky R,Flossdorf J,Kula MR

更新日期：1976-08-01 00:00:00

abstract：:Detailed models are presented for the triple-stranded polynucleotide helices of poly (U)-poly (A)-poly (U) (two forms), poly (U)-poly d (A) -poly (U), poly d(C)-poly d(I)-poly d(C), poly d(T)-polyd(A)-poly d(T) and poly (I)-poly (A)-poly (I). The models were genrated using a computerized, linked-atom procedure which p...

journal_title：Nucleic acids research

authors： Arnott S,Bond PJ,Selsing E,Smith PJ

更新日期：1976-10-01 00:00:00

abstract：:The small subunit ribosomal RNA gene (16S rRNA) has been successfully used to catalogue and study the diversity of prokaryotic species and communities but it offers limited resolution at the species and finer levels, and cannot represent the whole-genome diversity and fluidity. To overcome these limitations, we introd...

journal_title：Nucleic acids research

authors： Rodriguez-R LM,Gunturu S,Harvey WT,Rosselló-Mora R,Tiedje JM,Cole JR,Konstantinidis KT

更新日期：2018-07-02 00:00:00

abstract：:Compounds that are covalent analogues of nucleic acid base pairs of normal, long, and short C1' to C1' dimensions [B. Devadas and N.J. Leonard (1990) J. Am. Chem. Soc., 112, 3125-3135.] have been added to the oligodeoxyribonucleotide d(A)6 with bacteriophage T4 RNA ligase as a prelude to placing them at defined loci w...

journal_title：Nucleic acids research

authors： Petric A,Bhat B,Leonard NJ,Gumport RI

更新日期：1991-02-11 00:00:00

abstract：:Two genomic DNAs with a size of approximately 2.8 kb, isolated from the liver of Bungarus multicinctus (Taiwan banded krait), encode the precursors of the long neurotoxins, alpha-Bgt(A31) and alpha-Bgt(V31), respectively. Both genes share virtually identical overall organization with three exons separated by two intro...

journal_title：Nucleic acids research

authors： Chang L,Lin S,Huang H,Hsiao M

更新日期：1999-10-15 00:00:00

abstract：:Lambda exonuclease processively degrades one strand of double-stranded DNA (dsDNA) in the 5"-3" direction. To understand the mechanism through which this enzyme generates high processivity we are analyzing the first step in the reaction, namely the interaction of lambda exonuclease with the ends of substrate DNA. Endo...

journal_title：Nucleic acids research

authors： Mitsis PG,Kwagh JG

更新日期：1999-08-01 00:00:00

abstract：:DNA polymerases of the A and B families, and reverse transcriptases, share a common mechanism for preventing incorporation of ribonucleotides: a highly conserved active site residue obstructing the position that would be occupied by a 2' hydroxyl group on the incoming nucleotide. In the family Y (lesion bypass) polyme...

journal_title：Nucleic acids research

authors： DeLucia AM,Grindley ND,Joyce CM

更新日期：2003-07-15 00:00:00

abstract：:The repeating nucleotide sequence of 68 base pairs in the mtDNA from an ethidium-induced cytoplasmic petite mutant of yeast has been determined. For sequence analysis specifically primed and terminated RNA copies, obtained by in vitro transcription of the separated strands, were use. The sequence consists of 66 consec...

journal_title：Nucleic acids research

authors： Van Kreijl CF,Bos JL

更新日期：1977-07-01 00:00:00

abstract：:The k-junction is a structural motif in RNA comprising a three-way helical junction based upon kink turn (k-turn) architecture. A computer program written to examine relative helical orientation identified the three-way junction of the Arabidopsis TPP riboswitch as an elaborated k-turn. The Escherichia coli TPP ribosw...

journal_title：Nucleic acids research

authors： Wang J,Daldrop P,Huang L,Lilley DM

更新日期：2014-04-01 00:00:00

abstract：:Escherichia coli leucyl-tRNA synthetase (LeuRS) aminoacylates up to six different class II tRNA(leu) molecules. Each has a distinct anticodon and varied nucleotides in other regions of the tRNA. Attempts to construct a minihelix RNA that can be aminoacylated with leucine have been unsuccessful. Herein, we describe the...

journal_title：Nucleic acids research

authors： Larkin DC,Williams AM,Martinis SA,Fox GE

更新日期：2002-05-15 00:00:00

abstract：:DNA polymerase mu is a member of the mammalian pol X family and reduces deletion during chromosome break repair by nonhomologous end joining (NHEJ). This biological role is linked to pol mu's ability to promote NHEJ of ends with noncomplementary 3' overhangs, but questions remain regarding how it performs this role. W...

journal_title：Nucleic acids research

authors： Davis BJ,Havener JM,Ramsden DA

更新日期：2008-05-01 00:00:00

abstract：:The transcriptional activity of the p53 tumor suppressor protein is crucial for the regulation of cell growth, apoptosis and tumor progression. The first identified p53 relative, p73, was reported to be monoallelically expressed in normal tissues. In some tumors, loss of heterozygosity was associated with overexpressi...

journal_title：Nucleic acids research

authors： Vikhanskaya F,D'Incalci M,Broggini M

更新日期：2000-01-15 00:00:00

abstract：:Mung bean nuclease hydrolyzes synthetic esters of 3'-nucleotides to nucleosides and phosphate esters; esters of 2'-nucleotides, and 2'--> 5' internucleotide linkages, are resistant. Esters of ribonucleotides are cleaved at 100-fold the rate for deoxyribonucleotides, the increased rate being due to presence of the 2'-h...

journal_title：Nucleic acids research

authors： Kole R,Sierakowska H,Szemplińska H,Shugar D

更新日期：1974-05-01 00:00:00

abstract：:Methylation of CpG motifs in DNA is involved in the control of gene expression and in several other epigenic effects. It suppresses also the immuno-stimulation properties of bacterial or viral DNAs that contain CPGS: However, effects of methylation on the DNA structure and dynamics are not clear. Here we carried out a...

journal_title：Nucleic acids research

authors： Derreumaux S,Chaoui M,Tevanian G,Fermandjian S

更新日期：2001-06-01 00:00:00

abstract：:Microsatellites, such as (TG)n found at random throughout the genome, or as 3' extensions of Alu sequences are being increasingly used as genetic markers because of their pluriallelic character. The search for polymorphic microsatellites is time consuming, however, as it is necessary to sequence clones containing the ...

journal_title：Nucleic acids research

authors： Charlieu JP,Laurent AM,Carter DA,Bellis M,Roizès G

更新日期：1992-03-25 00:00:00

abstract：:The expression of thymidine kinase in fungi, which normally lack this enzyme, will greatly aid the study of DNA metabolism and provide useful drug-sensitive phenotypes. The herpes simplex virus type-1 thymidine kinase gene ( tk ) was expressed in Neurospora crassa. tk was expressed as a fusion to N.crassa arg-2 regula...

journal_title：Nucleic acids research

authors： Sachs MS,Selker EU,Lin B,Roberts CJ,Luo Z,Vaught-Alexander D,Margolin BS

更新日期：1997-06-15 00:00:00

abstract：:To investigate the mechanism of N4-aminocytidine-induced mutagenesis, N'-alkyl-N4-aminocytidines and N4-alkyl-N4-aminocytidines were prepared and their mutagenicity on bacteria were assayed. N'-Methyl-N4-aminocytidine, N'-(2-hydroxyethyl)-N4-aminocytidine and N',N'-dimethyl-N4-aminocytidine showed direct-acting mutage...

journal_title：Nucleic acids research

authors： Nomura A,Negishi K,Hayatsu H

更新日期：1985-12-20 00:00:00

abstract：:Regulation of gene expression influences almost all biological processes in an organism; sequence-specific DNA-binding transcription factors are critical to this control. For most genomes, the repertoire of transcription factors is only partially known. Hitherto transcription factor identification has been largely bas...

journal_title：Nucleic acids research

authors： Kummerfeld SK,Teichmann SA

更新日期：2006-01-01 00:00:00

abstract：:The discovery of hydroxymethyl-, formyl- and carboxylcytosine, generated through oxidation of methylcytosine by TET dioxygenases, raised the question how these modifications contribute to epigenetic regulation. As they are subjected to complex regulation in vivo, we dissected links to gene expression with in vitro mod...

journal_title：Nucleic acids research

authors： Müller U,Bauer C,Siegl M,Rottach A,Leonhardt H

更新日期：2014-07-01 00:00:00

abstract：:The DNA sequence was determined for the narL gene of Escherichia coli. This gene is involved in global regulation of a number of nitrate controlled genes including frdABCD, tor, narGHJI, and adhE which are associated with bacterial respiration and fermentation. Comparison of the deduced amino acid sequence of narL to ...

journal_title：Nucleic acids research

authors： Gunsalus RP,Kalman LV,Stewart RR

更新日期：1989-03-11 00:00:00

abstract：:The replacement of thymidine with 5-bromo-2'-deoxyuridine (BrdU) is well-known to sensitize cells to ionizing radiation and photoirradiation. We reported here the sequence-dependent formation of intrastrand crosslink products from the UVB irradiation of duplex oligodeoxynucleotides harboring a BrdU or its closely rela...

journal_title：Nucleic acids research

authors： Zeng Y,Wang Y

更新日期：2006-01-01 00:00:00

abstract：:Partial acid cleavage, comparative HPLC tryptic peptide mapping and amino acid sequencing of the C1 and C2 proteins of HeLa heterogeneous nuclear ribonucleoprotein (hnRNP) particles demonstrate that proteins C1 and C2 differ in primary structure by the presence of a 13 amino acid insert sequence in C2. This C2 insert ...

journal_title：Nucleic acids research

authors： Merrill BM,Barnett SF,LeStourgeon WM,Williams KR

更新日期：1989-11-11 00:00:00