A revised secondary structure model for the 3'-end of hepatitis B virus pregenomic RNA.

abstract：:The development of genetic switches and their integrated forms (genetic circuits) with desired specifications/functions is key for success in synthetic biology. Due to the difficulty in rational design, genetic switches and circuits with desirable specifications are mostly obtained by directed evolution. Based on a vi...

journal_title：Nucleic acids research

authors： Tashiro Y,Fukutomi H,Terakubo K,Saito K,Umeno D

更新日期：2011-02-01 00:00:00

abstract：:Calf thymus DNA polymerase alpha (pol alpha) and bacteriophage T4 DNA polymerase (pol T4) were exploited as model enzymes to investigate the molecular mechanism of inhibitory action of N2-(p-n-butylphenyl)dGTP (BuPdGTP) and 2-(p-n-butyl-anilino)dATP (BuAdATP) on the BuPdNTP-susceptible alpha polymerase family. Kinetic...

journal_title：Nucleic acids research

authors： Khan NN,Wright GE,Brown NC

更新日期：1991-04-11 00:00:00

abstract：:We have assessed the ability of nucleosomes to influence the formation of mammalian topoisomerase II-DNA complexes by mapping the sites of cleavage induced by four unrelated topoisomerase II inhibitors in naked versus nucleosome-reconstituted SV40 DNA. DNA fragments were reconstituted with histone octamers from HeLa c...

journal_title：Nucleic acids research

authors： Capranico G,Jaxel C,Roberge M,Kohn KW,Pommier Y

更新日期：1990-08-11 00:00:00

abstract：:The mRNA encoding repressor cI of phage lambda is the only known E. coli message which starts directly with the initiation AUG codon. The ability of in vitro synthesized cI mRNA fragments (150 or 400 nts) to form ternary initiation complexes has been studied using the toeprint method. In the presence of tRNA(Met)f, th...

journal_title：Nucleic acids research

authors： Balakin AG,Skripkin EA,Shatsky IN,Bogdanov AA

更新日期：1992-02-11 00:00:00

abstract：:Bacterial retrons consist of a reverse transcriptase (RT) and a contiguous non-coding RNA (ncRNA) gene. One third of annotated retrons carry additional open reading frames (ORFs), the contribution and significance of which in retron biology remains to be determined. In this study we developed a computational pipeline ...

journal_title：Nucleic acids research

authors： Mestre MR,González-Delgado A,Gutiérrez-Rus LI,Martínez-Abarca F,Toro N

更新日期：2020-12-16 00:00:00

abstract：:The prime mechanism by which p53 acts as a tumor suppressor is as a transcription factor regulating the expression of diverse downstream genes. The DNA-binding domain of p53 (p53DBD) interacts with defined DNA sites and is the main target for mutations in human primary tumors. Here, we show that the CWWG motif, found ...

journal_title：Nucleic acids research

authors： Beno I,Rosenthal K,Levitine M,Shaulov L,Haran TE

更新日期：2011-03-01 00:00:00

abstract：:Synthetic DNA fragments were constructed to determine the effect of G tracts, in conjunction with periodically spaced A tracts, on DNA bends. Relative length measurements showed that the G tracts spaced at the half helical turn enhanced the DNA bend. When the G tract was interrupted with a thymine or shortened to one ...

journal_title：Nucleic acids research

authors： Milton DL,Casper ML,Wills NM,Gesteland RF

更新日期：1990-02-25 00:00:00

abstract：:The HhaI methyltransferase recognizes the sequence GCGC and transfers a methyl group to C5 of the first cytosine residue. All m5C-methyltransferases contain a highly conserved sequence motif called the P-C motif. The cysteine residue of this motif is involved in catalysis by forming a covalent bond with the 6-position...

journal_title：Nucleic acids research

authors： Mi S,Roberts RJ

更新日期：1993-05-25 00:00:00

abstract：:Decay of (125)I produces a shower of low energy electrons (Auger electrons) that cause strand breaks in DNA in a distance-dependent manner with 90% of the breaks located within 10 bp from the decay site. We studied strand breaks in RNA molecules produced by decay of (125)I incorporated into complementary DNA oligonucl...

journal_title：Nucleic acids research

authors： Gaidamakova EK,Neumann RD,Panyutin IG

更新日期：2002-11-15 00:00:00

abstract：:2'-O-Aminooxymethyl ribonucleosides are prepared from their 3',5'-disilylated 2'-O-phthalimidooxymethyl derivatives by treatment with NH(4)F in MeOH. The reaction of these novel ribonucleosides with 1-pyrenecarboxaldehyde results in the efficient formation of stable and yet reversible ribonucleoside 2'-conjugates in y...

journal_title：Nucleic acids research

authors： Cieslak J,Grajkowski A,Ausín C,Gapeev A,Beaucage SL

更新日期：2012-03-01 00:00:00

abstract：:Argonaute (Ago) proteins function in RNA silencing as components of the RNA-induced silencing complex (RISC). In lower organisms, the small interfering RNA and miRNA pathways diverge due in part to sorting mechanisms that direct distinct small RNA (sRNA) duplexes onto specific Ago-RISCs. However, such sorting mechanis...

journal_title：Nucleic acids research

authors： Yamakawa N,Okuyama K,Ogata J,Kanai A,Helwak A,Takamatsu M,Imadome K,Takakura K,Chanda B,Kurosaki N,Yamamoto H,Ando K,Matsui H,Inaba T,Kotani A

更新日期：2014-04-01 00:00:00

abstract：:We have implemented a genome annotation system for prokaryotes called AGMIAL. Our approach embodies a number of key principles. First, expert manual annotators are seen as a critical component of the overall system; user interfaces were cyclically refined to satisfy their needs. Second, the overall process should be o...

journal_title：Nucleic acids research

authors： Bryson K,Loux V,Bossy R,Nicolas P,Chaillou S,van de Guchte M,Penaud S,Maguin E,Hoebeke M,Bessières P,Gibrat JF

更新日期：2006-07-19 00:00:00

abstract：:A new method is described for the direct construction of randomly mutagenized genes by applying the polymerase chain reaction (PCR) to an oligonucleotide synthesized using doped nucleotide reservoirs. We have demonstrated the utility of this method by generating a library of mutant HIV-1 tat genes. Several arbitrarily...

journal_title：Nucleic acids research

authors： Siderovski DP,Matsuyama T,Frigerio E,Chui S,Min X,Erfle H,Sumner-Smith M,Barnett RW,Mak TW

更新日期：1992-10-25 00:00:00

abstract：:Proteins interacting with pre-mRNAs during early stages of spliceosome formation in a HeLa nuclear extract were investigated by photochemical RNA-protein crosslinking. The level of protein crosslinking to a beta-globin pre-mRNA was positively correlated with the presence of an intron. Proteins of 110,000, 59,000 and 3...

journal_title：Nucleic acids research

authors： Mayrand SH,Pederson T

更新日期：1990-06-11 00:00:00

abstract：:Short DNA sequence motifs have been identified in viral and cellular enhancers which represent the binding sites for a variety of trans- acting factors. One such HeLa cell factor, EBP1, has been purified and shown to bind to sequences in the SV40 enhancer. The PRDII element in the human beta-interferon gene regulatory...

journal_title：Nucleic acids research

authors： Clark L,Hay RT

更新日期：1989-01-25 00:00:00

abstract：:Three new proteins which selectively bind to UV-damaged DNA were identified and purified to near homogeneity from UV-irradiated Drosophila melanogaster embryos through several column chromatographies. These proteins, tentatively designated as D-DDB P1, P2 and P3, can be identified as different complex bands in a gel s...

journal_title：Nucleic acids research

authors： Kai M,Takahashi T,Todo T,Sakaguchi K

更新日期：1995-07-25 00:00:00

abstract：:Two triple helix structures (15-mers containing only T.A-T triplets or containing mixed T.A-T and C.G-C triplets) have been studied by uranyl mediated DNA photocleavage to probe the accessibility of the phosphates of the DNA backbone. Whereas the phosphates of the pyrimidine strand are at least as accessible as in dou...

journal_title：Nucleic acids research

authors： Nielsen PE

更新日期：1992-06-11 00:00:00

abstract：:In bacteria, promoter identification by RNA polymerase is mediated by a dissociable σ factor. The housekeeping σ(70) factor of Escherichia coli recognizes two well characterized DNA sequence elements, known as the '-10' and '-35' hexamers. These elements are separated by 'spacer' DNA, the sequence of which is generall...

journal_title：Nucleic acids research

authors： Singh SS,Typas A,Hengge R,Grainger DC

更新日期：2011-07-01 00:00:00

abstract：:The human Werner syndrome protein, WRN, is a member of the RecQ helicase family and contains 3'-->5' helicase and 3'-->5' exonuclease activities. Recently, we showed that the exonuclease activity of WRN is greatly stimulated by the human Ku heterodimer protein. We have now mapped this interaction physically and functi...

journal_title：Nucleic acids research

authors： Karmakar P,Snowden CM,Ramsden DA,Bohr VA

更新日期：2002-08-15 00:00:00

abstract：:Treatment of responsive cells by interferons (IFNs) induces within a few hours a rise in the concentration of several proteins and mRNAs. In order to characterize these IFN-induced mRNA species, we have cloned in E. coli the cDNA made from a 17-18S poly(A)+ RNA of human fibroblastoid cells (SV80) treated with IFN-beta...

journal_title：Nucleic acids research

authors： Chebath J,Merlin G,Metz R,Benech P,Revel M

更新日期：1983-03-11 00:00:00

abstract：:Conditional gene targeting depends on tissue and time specificity of recombination events. Endogenous promoters are often used to drive various transgenic constructs. To avoid the problems associated with reconstituting a specific expression pattern in transgenic animals by this method, we tested the internal ribosome...

journal_title：Nucleic acids research

authors： Lindeberg J,Ebendal T

更新日期：1999-03-15 00:00:00

abstract：:A direct and label-free electrochemical biosensor for the detection of the protein-mismatched DNA interaction was designed using immobilized N-terminal histidine tagged Escherichia coli. MutS on a Ni-NTA coated Au electrode. General electrochemical methods, cyclic voltammetry (CV), electrochemical quartz crystal micro...

journal_title：Nucleic acids research

authors： Cho M,Lee S,Han SY,Park JY,Rahman MA,Shim YB,Ban C

更新日期：2006-06-13 00:00:00

abstract：:The carbon catabolite repressor protein 4 (Ccr4)-Negative on TATA (Not) complex controls gene expression at two levels. In the nucleus, it regulates the basal transcription machinery, nuclear receptor-mediated transcription and histone modifications. In the cytoplasm, the complex is required for messenger RNA (mRNA) t...

journal_title：Nucleic acids research

authors： Sandler H,Kreth J,Timmers HT,Stoecklin G

更新日期：2011-05-01 00:00:00

abstract：:REV1 and DNA Polymerase ζ (REV3 and REV7) play important roles in translesion DNA synthesis (TLS) in which DNA replication bypasses blocking lesions. REV1 and Polζ have also been implicated in promoting repair of DNA double-stranded breaks (DSBs). However, the mechanism by which these two TLS polymerases increase tole...

journal_title：Nucleic acids research

authors： Sharma S,Hicks JK,Chute CL,Brennan JR,Ahn JY,Glover TW,Canman CE

更新日期：2012-01-01 00:00:00

abstract：:Two enzymatic pathways are involved in the inhibitory effects of double-stranded (ds)RNA on protein synthesis in cell extracts derived from interferon-treated human fibroblasts or HeLa cells, an oligonucleotide polymerase that synthesizes (2'-5')An from ATP and a protein kinase that phosphorylates the alpha subunit of...

journal_title：Nucleic acids research

authors： Baglioni C,Minks MA,De Clercq E

更新日期：1981-10-10 00:00:00

abstract：:Replacement of alpha-, beta- and gamma-phosphate groups in 2'-deoxynucleoside 5'-triphosphates (dNTP) with phosphonate groups yields a new set of dNTP mimics with potential biological and therapeutic applications. Here, we describe the synthesis of 15 new dNTPs modified at alpha-, beta- and gamma-phosphates containing...

journal_title：Nucleic acids research

authors： Alexandrova LA,Skoblov AY,Jasko MV,Victorova LS,Krayevsky AA

更新日期：1998-02-01 00:00:00

abstract：:In this study, we present the DNA-Binding Site Identifier (DBSI), a new structure-based method for predicting protein interaction sites for DNA binding. DBSI was trained and validated on a data set of 263 proteins (TRAIN-263), tested on an independent set of protein-DNA complexes (TEST-206) and data sets of 29 unbound...

journal_title：Nucleic acids research

authors： Zhu X,Ericksen SS,Mitchell JC

更新日期：2013-09-01 00:00:00

abstract：:Mitochondrial DNA (mtDNA) resides in a high ROS environment and suffers more mutations than its nuclear counterpart. Increasing evidence suggests that mtDNA mutations are not the results of direct oxidative damage, rather are caused, at least in part, by DNA replication errors. To understand how the mtDNA replicase, P...

journal_title：Nucleic acids research

authors： Anderson AP,Luo X,Russell W,Yin YW

更新日期：2020-01-24 00:00:00

abstract：:The E. coli protein StpA has RNA annealing and strand displacement activities and it promotes folding of RNAs by loosening their structures. To understand the mode of action of StpA, we analysed the relationship of its RNA chaperone activity to its RNA-binding properties. For acceleration of annealing of two short RNA...

journal_title：Nucleic acids research

authors： Mayer O,Rajkowitsch L,Lorenz C,Konrat R,Schroeder R

更新日期：2007-01-01 00:00:00

abstract：:The hexamer (m5 dC-dG)3 has been synthesized and its three-dimensional structure determined by a single crystal X-ray diffraction analysis. The structure has been refined to a final R value of 15.6% at 1.3 A resolution. The molecule forms a left-handed Z-DNA helix which is similar to the unmethylated Z-DNA structure. ...

journal_title：Nucleic acids research

authors： Fujii S,Wang AH,van der Marel G,van Boom JH,Rich A

更新日期：1982-12-11 00:00:00