The output of the tRNA modification pathways controlled by the Escherichia coli MnmEG and MnmC enzymes depends on the growth conditions and the tRNA species.

abstract：:Maintenance of stem-cell identity requires proper regulation of enhancer activity. Both transcription factors OCT4/SOX2/NANOG and histone methyltransferase complexes MLL/SET1 were shown to regulate enhancer activity, but how they are regulated in embryonic stem cells (ESCs) remains further studies. Here, we report a t...

journal_title：Nucleic acids research

authors： Niu C,Wang S,Guo J,Wei X,Jia M,Chen Z,Gong W,Qin Y,Wang X,Zhi X,Lu M,Chen S,Gu M,Zhang J,Han JJ,Lan F,Meng D

更新日期：2021-01-27 00:00:00

abstract：:DNA dodecamers have been designed with two cytosines on each end and intervening A and T stretches, such that the oligomers have fully complementary A:T base pairs when aligned in the parallel orientation. Spectroscopic (UV, CD and IR), NMR and molecular dynamics studies have shown that oligomers having the sequences ...

journal_title：Nucleic acids research

authors： Parvathy VR,Bhaumik SR,Chary KV,Govil G,Liu K,Howard FB,Miles HT

更新日期：2002-04-01 00:00:00

abstract：:KRAS is one of the most mutated genes in human cancer. It is controlled by a G4 motif located upstream of the transcription start site. In this paper, we demonstrate that 8-oxoguanine (8-oxoG), being more abundant in G4 than in non-G4 regions, is a new player in the regulation of this oncogene. We designed oligonucleo...

journal_title：Nucleic acids research

authors： Cogoi S,Ferino A,Miglietta G,Pedersen EB,Xodo LE

更新日期：2018-01-25 00:00:00

abstract：:The synthesis of a pentadecamer of the 5'-phosphate of the antiviral nucleoside ribavirin (1'-beta-D-ribofuranosyl-1H-1,2,4-triazole-3-carboxamide) has been achieved. This homoribopolymer is terminated at the 5'-position with an (6-aminohexyl)phosphate group to permit conjugation to a carrier and at the 3'-position by...

journal_title：Nucleic acids research

authors： Dawson MI,Jina AN,Torkelson S,Rhee S,Moore M,Zarling DA,Hobbs PD

更新日期：1990-03-11 00:00:00

abstract：:The pac1+ gene of the fission yeast Schizosaccharomyces pombe is essential for viability and its overexpression induces sterility and suppresses mutations in the pat1+ and snm1+ genes. The pac1+ gene encodes a protein that is structurally similar to RNase III from Escherichia coli, but its normal function is unknown. ...

journal_title：Nucleic acids research

authors： Rotondo G,Frendewey D

更新日期：1996-06-15 00:00:00

abstract：:In small RNA (smRNA) sequencing studies, highly abundant molecules such as adapter dimer products and tissue-specific microRNAs (miRNAs) inhibit accurate quantification of lowly expressed species. We previously developed a method to selectively deplete highly abundant miRNAs. However, this method does not deplete adap...

journal_title：Nucleic acids research

authors： Hardigan AA,Roberts BS,Moore DE,Ramaker RC,Jones AL,Myers RM

更新日期：2019-08-22 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：:3'-O-(5'-phosphoryldeoxycytidyl) phosphorothioate and fluorescent 3'-O-(5'-phosphoryldeoxycytidyl) S-bimane phosphorothioate can be ligated to tRNA by T4 RNA ligase. They are also efficient donors for the enzymatic ligation to oligodeoxynucleotides bearing a 3'-cytidine terminus. Cytidine 3',5'-bisphosphate is also a ...

journal_title：Nucleic acids research

authors： Cosstick R,McLaughlin LW,Eckstein F

更新日期：1984-02-24 00:00:00

abstract：:Recently, we reported a multicopy mammalian plasmid with a structure related to polyoma. The plasmid, named L factor, was found at a high copy number (5,000 or more per cell) in a subclone derived from mouse L cells. We attempted to utilize L factor as a plasmid vector for mammalian cells. A series of composite DNA co...

journal_title：Nucleic acids research

authors： Saito H,Uehara H,Kusano T,Oishi M

更新日期：1987-11-11 00:00:00

abstract：:We describe a rapid fluorescence indicator displacement assay (R-FID) to evaluate the affinity and the selectivity of compounds binding to different DNA structures. We validated the assay using a library of 30 well-known nucleic acid binders containing a variety chemical scaffolds. We used a combination of principal c...

journal_title：Nucleic acids research

authors： Del Villar-Guerra R,Gray RD,Trent JO,Chaires JB

更新日期：2018-04-20 00:00:00

abstract：:The RNA bacteriophages of E. coli specifically encapsidate a single copy of the viral genome in a protein shell composed mainly of 180 molecules of coat protein. Coat protein is also a translational repressor and shuts off viral replicase synthesis by interaction with a RNA stem-loop containing the replicase initiatio...

journal_title：Nucleic acids research

authors： Pickett GG,Peabody DS

更新日期：1993-09-25 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：:Giant chromatin-modifying complexes regulate gene transcription in eukaryotes by acting on chromatin substrates and 'setting' the histone code. The histone deacetylase (HDAC)-associated mammalian Sin3 corepressor complex regulates a wide variety of genes involved in all aspects of cellular physiology. The recruitment ...

journal_title：Nucleic acids research

authors： He Y,Imhoff R,Sahu A,Radhakrishnan I

更新日期：2009-04-01 00:00:00

abstract：:PRED(BALB/c) is a computational system that predicts peptides binding to the major histocompatibility complex-2 (H2(d)) of the BALB/c mouse, an important laboratory model organism. The predictions include the complete set of H2(d) class I (H2-K(d), H2-L(d) and H2-D(d)) and class II (I-E(d) and I-A(d)) molecules. The p...

journal_title：Nucleic acids research

authors： Zhang GL,Srinivasan KN,Veeramani A,August JT,Brusic V

更新日期：2005-07-01 00:00:00

abstract：:Abasic sites (AP-sites) are frequent DNA lesions, arising by spontaneous base hydrolysis or as intermediates of base excision repair (BER). The hemiacetal at the anomeric centre renders them chemically reactive, which presents a challenge to biochemical and structural investigation. Chemically more stable AP-site anal...

journal_title：Nucleic acids research

authors： Schuermann D,Scheidegger SP,Weber AR,Bjørås M,Leumann CJ,Schär P

更新日期：2016-03-18 00:00:00

abstract：:The Nucleolar Proteome Database (NOPdb) archives data on >700 proteins that were identified by multiple mass spectrometry (MS) analyses from highly purified preparations of human nucleoli, the most prominent nuclear organelle. Each protein entry is annotated with information about its corresponding gene, its domain st...

journal_title：Nucleic acids research

authors： Leung AK,Trinkle-Mulcahy L,Lam YW,Andersen JS,Mann M,Lamond AI

更新日期：2006-01-01 00:00:00

abstract：:Using circular dichroism spectroscopy, UV absorption spectroscopy and polyacrylamide gel electrophoresis, we studied conformational properties of guanine-rich DNA strands of the fragile X chromosome repeats d(GGC)n, d(GCG)n and d(CGG)n, with n = 2, 4, 8 and 16. These strands are generally considered in the literature ...

journal_title：Nucleic acids research

authors： Fojtík P,Kejnovská I,Vorlícková M

更新日期：2004-01-12 00:00:00

abstract：:Bacteria from the genus Streptomyces are very important for the production of natural bioactive compounds such as antibiotic, antitumour or immunosuppressant drugs. Around two-thirds of all known natural antibiotics are produced by these bacteria. An enormous quantity of crucial data related to this genus has been gen...

journal_title：Nucleic acids research

authors： Lucas X,Senger C,Erxleben A,Grüning BA,Döring K,Mosch J,Flemming S,Günther S

更新日期：2013-01-01 00:00:00

abstract：:Archival formalin-fixed, paraffin-embedded and ethanol-fixed tissues represent a potentially invaluable resource for gene expression analysis, as they are the most widely available material for studies of human disease. Little data are available evaluating whether RNA obtained from fixed (archival) tissues could produ...

journal_title：Nucleic acids research

authors： Karsten SL,Van Deerlin VM,Sabatti C,Gill LH,Geschwind DH

更新日期：2002-01-15 00:00:00

abstract：:Chromatin footprinting in Drosophila tissue culture cells has detected the binding of a non-histone protein at +8 of the distal Adh RNA start site, on a 10-bp direct repeat motif abutting a nucleosome positioned over the inactive Adh distal promoter. Alternatively the active promoter is bound by a transcription initia...

journal_title：Nucleic acids research

authors： Benyajati C,Ewel A,McKeon J,Chovav M,Juan E

更新日期：1992-09-11 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：:Long terminal repeat (LTR)-retrotransposons comprise a significant portion of the rice genome. Their complete characterization is thus necessary if the sequenced genome is to be annotated correctly. In addition, because LTR-retrotransposons can influence the expression of neighboring genes, the complete identification...

journal_title：Nucleic acids research

authors： Chaparro C,Guyot R,Zuccolo A,Piégu B,Panaud O

更新日期：2007-01-01 00:00:00

abstract：:A short histone-like fusion RNA, generated when the RNA 3' processing signal from a mouse histone H4 gene is inserted into a heterologous transcription unit, becomes correctly down-regulated in G1-arrested cells of a temperature-sensitive mouse mastocytoma cell cycle mutant (21-Tb; Stauber et al., EMBO J. 5, 3297-3303...

journal_title：Nucleic acids research

authors： Stauber C,Schümperli D

更新日期：1988-10-25 00:00:00

abstract：:During telomere replication in yeast, chromosome ends acquire a long single-stranded extension of the strand making the 3' end. Previous work showed that these 3' tails are generated late in S-phase, when conventional replication is virtually complete. In addition, the extensions were also observed in cells that lacke...

journal_title：Nucleic acids research

authors： Dionne I,Wellinger RJ

更新日期：1998-12-01 00:00:00

abstract：:The open state of human topoisomerase I has been probed by molecular dynamics simulation, starting from the coordinates of the closed structure of the protein complexed with DNA, after elimination of the 22-bp DNA duplex oligonucleotide. A repulsion force between the two lips of the protein has been introduced for a s...

journal_title：Nucleic acids research

authors： Chillemi G,Bruselles A,Fiorani P,Bueno S,Desideri A

更新日期：2007-01-01 00:00:00

abstract：:The CRISPR/Cas adaptive immune system provides resistance against phages and plasmids in Archaea and Bacteria. CRISPR loci integrate short DNA sequences from invading genetic elements that provide small RNA-mediated interference in subsequent exposure to matching nucleic acids. In Streptococcus thermophilus, it was pr...

journal_title：Nucleic acids research

authors： Sapranauskas R,Gasiunas G,Fremaux C,Barrangou R,Horvath P,Siksnys V

更新日期：2011-11-01 00:00:00

abstract：:USF is a helix-loop-helix transcription factor that, like Myc, recognizes the DNA binding motif CACGTG. Two different forms of USF, characterized by apparent molecular weights of 43,000 and 44,000, were originally identified in HeLa cells by biochemical analysis. Clones for the 43-kDa USF were first characterized, but...

journal_title：Nucleic acids research

authors： Sirito M,Lin Q,Maity T,Sawadogo M

更新日期：1994-02-11 00:00:00

abstract：:Current literature describes several methods for the design of efficient siRNAs with 19 perfectly matched base pairs and 2 nt overhangs. Using four independent databases totaling 3336 experimentally verified siRNAs, we compared how well several of these methods predict siRNA cleavage efficiency. According to receiver ...

journal_title：Nucleic acids research

authors： Matveeva O,Nechipurenko Y,Rossi L,Moore B,Saetrom P,Ogurtsov AY,Atkins JF,Shabalina SA

更新日期：2007-01-01 00:00:00

abstract：:Polynucleotides containing adenosine and 8-azidoadenosine or inosine and 8-azidoinosine residues have been prepared from mixtures of nucleoside diphosphates using polynucleotide phosphorylase from Escherichia coli. These copolymers can form complexes with polyuridylic or polycytidylic acids respectively. Single strand...

journal_title：Nucleic acids research

authors： Cartwright IL,Hutchinson DW

更新日期：1980-04-11 00:00:00

abstract：:Three peaks of methyltransferase activity specific for MNNG alkylated DNA have been identified from extracts of chemically adapted M. luteus. They are designated as TI to TIII in order to their elution from a Sephadex G-75 column. The first one of these peaks has been purified to homogeneity. TI, is an inducible, unus...

journal_title：Nucleic acids research

authors： Riazuddin S,Athar A,Sohail A

更新日期：1987-11-25 00:00:00