The 5' terminal capping of heterogeneous nuclear RNA at different embryonic stages of the sea urchin.

abstract：:Evidence will be presented to show that the allyl group is suitable for the protection of a 3'-terminal phosphodiester function. The latter will be demonstrated by the synthesis, via a phosphotriester approach, of two cyclic tetraribonucleotides [r(AAAA) and r(UAMe2UAMe2)], two cyclic hexadeoxyribonucleotides [d(CGCGC...

journal_title：Nucleic acids research

authors： de Vroom E,Broxterman HJ,Sliedregt LA,van der Marel GA,van Boom JH

更新日期：1988-05-25 00:00:00

abstract：:Pyrimidine adducts in cellular DNA arise from modification of the pyrimidine 5,6-double bond by oxidation, reduction or hydration. The biological outcome includes increased mutation rate and potential lethality. A major DNA N:-glycosylase responsible for the excision of modified pyrimidine bases is the base excision r...

journal_title：Nucleic acids research

authors： Yang H,Phan IT,Fitz-Gibbon S,Shivji MK,Wood RD,Clendenin WM,Hyman EC,Miller JH

更新日期：2001-02-01 00:00:00

abstract：:The initiation region of the MS2 replicase cistron can be isolated as a fragment 59 bases in length protected from RNAase by the binding of the coat protein which serves as a translational repressor. This fragment MS2 R(-53 leads to 6) starts 53 bases before the initiation codon and retains full activity in binding ri...

journal_title：Nucleic acids research

authors： Borisova GP,Volkova TM,Berzin V,Rosenthal G,Gren EJ

更新日期：1979-01-01 00:00:00

abstract：:The location of proteins on the mitochondrial DNA (mtDNA) of Drosophila virilis was investigated by Me3 psoralen photoreaction of mitochondria isolated from embryos. After photoreaction the mtDNA was purified and the pattern of DNA cross-linking was determined by electron microscopy of the DNA under totally denaturing...

journal_title：Nucleic acids research

authors： Pardue ML,Fostel JM,Cech TR

更新日期：1984-02-24 00:00:00

abstract：:Cpf1 nucleases were recently reported to be highly specific and programmable nucleases with efficiencies comparable to those of SpCas9. AsCpf1 and LbCpf1 require a single crRNA and recognize a 5'-TTTN-3' protospacer adjacent motif (PAM) at the 5' end of the protospacer for genome editing. For widespread application in...

journal_title：Nucleic acids research

authors： Tu M,Lin L,Cheng Y,He X,Sun H,Xie H,Fu J,Liu C,Li J,Chen D,Xi H,Xue D,Liu Q,Zhao J,Gao C,Song Z,Qu J,Gu F

更新日期：2017-11-02 00:00:00

abstract：:Quantitative real-time PCR (qPCR) is the method of choice for specific and sensitive quantification of nucleic acids. However, data validation is still a major issue, partially due to the complex effect of PCR inhibition on the results. If undetected PCR inhibition may severely impair the accuracy and sensitivity of r...

journal_title：Nucleic acids research

authors： Bar T,Kubista M,Tichopad A

更新日期：2012-02-01 00:00:00

abstract：:To enhance our knowledge regarding biological pathway regulation, we took an integrated approach, using the biomedical literature, ontologies, network analyses and experimental investigation to infer novel genes that could modulate biological pathways. We first constructed a novel gene network via a pairwise compariso...

journal_title：Nucleic acids research

authors： Qin T,Matmati N,Tsoi LC,Mohanty BK,Gao N,Tang J,Lawson AB,Hannun YA,Zheng WJ

更新日期：2014-10-01 00:00:00

abstract：:At the DNA/RNA level, biological signals are defined by a combination of spatial structures and sequence motifs. Until now, few attempts had been made in writing general purpose search programs that take into account both sequence and structure criteria. Indeed, the most successful structure scanning programs are usua...

journal_title：Nucleic acids research

authors： Billoud B,Kontic M,Viari A

更新日期：1996-04-15 00:00:00

abstract：:G-quadruplex (G4) DNA structures are linked to key biological processes and human diseases. Small molecules that target specific G4 DNA structures and signal their presence would therefore be of great value as chemical research tools with potential to further advance towards diagnostic and therapeutic developments. Ho...

journal_title：Nucleic acids research

authors： Kumar R,Chand K,Bhowmik S,Das RN,Bhattacharjee S,Hedenström M,Chorell E

更新日期：2020-02-20 00:00:00

abstract：:Recently, a few Na+-specific RNA-cleaving DNAzymes were reported, where nucleobases are likely to play critical roles in catalysis. The NaA43 and NaH1 DNAzymes share the same 16-nt Na+-binding motif, but differ in one or two nucleotides in a small catalytic loop. Nevertheless, they display an opposite pH-dependency, i...

journal_title：Nucleic acids research

authors： Ma L,Kartik S,Liu B,Liu J

更新日期：2019-09-05 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：:Abasic substitutions in the non-template strand and promoter sequence changes were made to assess the roles of various promoter features in sigma70 holoenzyme interactions with fork junction probes. Removal of -10 element non-template single strand bases, leaving the phosphodiester backbone intact, did not interfere w...

journal_title：Nucleic acids research

authors： Fenton MS,Gralla JD

更新日期：2003-06-01 00:00:00

abstract：:A new class of synthetic DNA duplexes containing repeating oligonucleotide sequences, double-helical concatemers, is characterized. The UV-absorption and circular dichroism of a concatemer formed in self-association of d(T-G-C-A-C-A-T-G) have been studied. The thermodynamical parameters of complex formation are the fo...

journal_title：Nucleic acids research

authors： Shabarova ZA,Dolinnaya NG,Turkin SI,Gromova ES

更新日期：1980-06-11 00:00:00

abstract：:DEAD, DEAH and DExH proteins are involved in almost every facet of RNA biochemistry. Members of these protein families exhibit an RNA-dependent ATPase activity and some possess an ATP-dependent RNA helicase activity. Although genetic studies have identified specific functions for certain DEx(D)/(H)proteins from which ...

journal_title：Nucleic acids research

authors： Kossen K,Uhlenbeck OC

更新日期：1999-10-01 00:00:00

abstract：:More than 200 assembly factors (AFs) are required for the production of ribosomes in yeast. The stepwise association and dissociation of these AFs with the pre-ribosomal subunits occurs in a hierarchical manner to ensure correct maturation of the pre-rRNAs and assembly of the ribosomal proteins. Although decades of re...

journal_title：Nucleic acids research

authors： Braun CM,Hackert P,Schmid CE,Bohnsack MT,Bohnsack KE,Perez-Fernandez J

更新日期：2020-01-10 00:00:00

abstract：:We have isolated an eight kilobase fragment of Bacillus subtilis DNA by specific integration and excision of a plasmid containing a sequence adjacent to ribosomal operon rrn O. The genetic locus of the cloned fragment was verified by linkage of the integrated vector to nearby genetic markers using both transduction an...

journal_title：Nucleic acids research

authors： Lampe MF,Bott KF

更新日期：1984-08-10 00:00:00

abstract：:Proteins perform biological functions through cascading interactions with each other by forming protein complexes. As a result, interactions among proteins, called protein-protein interactions (PPIs) are not completely free from selection constraint during evolution. Therefore, the identification and analysis of PPI c...

journal_title：Nucleic acids research

authors： Kwon D,Lee D,Kim J,Lee J,Sim M,Kim J

更新日期：2018-07-02 00:00:00

abstract：:IGF2 mRNA-binding protein 1 (IMP1) is a key regulator of messenger RNA (mRNA) metabolism and transport in organismal development and, in cancer, its mis-regulation is an important component of tumour metastasis. IMP1 function relies on the recognition of a diverse set of mRNA targets that is mediated by the combinator...

journal_title：Nucleic acids research

authors： Dagil R,Ball NJ,Ogrodowicz RW,Hobor F,Purkiss AG,Kelly G,Martin SR,Taylor IA,Ramos A

更新日期：2019-05-07 00:00:00

abstract：:Sequencing of RNAs (RNA-Seq) has revolutionized the field of transcriptomics, but the reads obtained often contain errors. Read error correction can have a large impact on our ability to accurately assemble transcripts. This is especially true for de novo transcriptome analysis, where a reference genome is not availab...

journal_title：Nucleic acids research

authors： Le HS,Schulz MH,McCauley BM,Hinman VF,Bar-Joseph Z

更新日期：2013-05-01 00:00:00

abstract：:A major goal of system biology is the characterization of transcription factors and microRNAs (miRNAs) and the transcriptional programs they regulate. We present Allegro, a method for de-novo discovery of cis-regulatory transcriptional programs through joint analysis of genome-wide expression data and promoter or 3' U...

journal_title：Nucleic acids research

authors： Halperin Y,Linhart C,Ulitsky I,Shamir R

更新日期：2009-04-01 00:00:00

abstract：:CSP41 is a ubiquitous chloroplast endoribonuclease belonging to the short chain dehydrogenase/reductase (SDR) superfamily. To help elucidate the role of CSP41 in chloroplast gene regulation, the mechanisms that determine its substrate recognition and catalytic activity were investigated. A divalent metal is required f...

journal_title：Nucleic acids research

authors： Bollenbach TJ,Stern DB

更新日期：2003-08-01 00:00:00

abstract：:We have determined the nucleotide sequence of a 7.5 kb full-size gypsy element from Drosophila subobscura strain H-271. Comparative analyses were carried out on the sequence and molecular structure of gypsy elements of D.subobscura (gypsyDs), D.melanogaster (gypsyDm) and D.virilis (gypsyDv). The three elements show a ...

journal_title：Nucleic acids research

authors： Alberola TM,de Frutos R

更新日期：1996-03-01 00:00:00

abstract：:'Linker scanning' has been used as an efficient method for systematically surveying a segment of DNA for functional elements by mutagenesis. A three-step PCR method was developed to simplify this process. In this method, a set of 'mutation primers' was made with 6 to 8 base substitutions in the center of the primers. ...

journal_title：Nucleic acids research

authors： Li XM,Shapiro LJ

更新日期：1993-08-11 00:00:00

abstract：:The Mediator complex transmits activation signals from DNA bound transcription factors to the core transcription machinery. Genome wide localization studies have demonstrated that Mediator occupancy not only correlates with high levels of transcription, but that the complex also is present at transcriptionally silence...

journal_title：Nucleic acids research

authors： Zhu X,Zhang Y,Bjornsdottir G,Liu Z,Quan A,Costanzo M,Dávila López M,Westholm JO,Ronne H,Boone C,Gustafsson CM,Myers LC

更新日期：2011-10-01 00:00:00

abstract：:Granulocyte macrophage-colony stimulating factor (GM-CSF) is produced by T cells, but not B cells, in response to immune signals. GM-CSF gene activation in response to T-cell stimulation requires remodelling of chromatin associated with the gene promoter, and these changes do not occur in B cells. While the CpG methyl...

journal_title：Nucleic acids research

authors： Brettingham-Moore KH,Sprod OR,Chen X,Oakford P,Shannon MF,Holloway AF

更新日期：2008-05-01 00:00:00

abstract：:Computer programs, implemented on an Univac II00/80 computer system, for the identification and characterization of protein coding genes and for the analysis of nucleic acid sequences, are described. ...

journal_title：Nucleic acids research

authors： Pierno G,Barni N,Candurro M,Cipollaro M,Franzè A,Juliano L,Macchiato MF,Mastrocinque G,Moscatelli C,Scarlato V

更新日期：1984-01-11 00:00:00

abstract：:Replication factor C (RF-C) is a eukaryotic heteropentameric protein required for DNA replication and repair processes by loading proliferating cell nuclear antigen (PCNA) onto DNA in an ATP-dependent manner. Prior to loading PCNA, RF-C binds to DNA. This binding is thought to be restricted to a specific DNA structure...

journal_title：Nucleic acids research

authors： Keller RC,Mossi R,Maga G,Wellinger RE,Hübscher U,Sogo JM

更新日期：1999-09-01 00:00:00

abstract：:Recently, a cDNA from the hepatitis C virus (HCV) RNA genome has been isolated in the USA from a chronically infected chimpanzee. In order to isolate HCV cDNA derived from human material, RNA was extracted from plasma of a Japanese blood donor implicated in post-transfusion non-A, non-B hepatitis and HCV cDNA was synt...

journal_title：Nucleic acids research

authors： Kubo Y,Takeuchi K,Boonmar S,Katayama T,Choo QL,Kuo G,Weiner AJ,Bradley DW,Houghton M,Saito I

更新日期：1989-12-25 00:00:00

abstract：:FASTQ has emerged as a common file format for sharing sequencing read data combining both the sequence and an associated per base quality score, despite lacking any formal definition to date, and existing in at least three incompatible variants. This article defines the FASTQ format, covering the original Sanger stand...

journal_title：Nucleic acids research

authors： Cock PJ,Fields CJ,Goto N,Heuer ML,Rice PM

更新日期：2010-04-01 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