Topoisomerase II minimizes DNA entanglements by proofreading DNA topology after DNA strand passage.

abstract：:Translation regulation plays an important role in eukaryotic gene expression. Upstream open reading frames (uORFs) are potent regulatory elements located in 5' mRNA transcript leaders. Translation of uORFs usually inhibit the translation of downstream main open reading frames, but some enhance expression. While a mino...

journal_title：Nucleic acids research

authors： Lin Y,May GE,Kready H,Nazzaro L,Mao M,Spealman P,Creeger Y,McManus CJ

更新日期：2019-09-26 00:00:00

abstract：:Yeast co-expressing rat APOBEC-1 and a fragment of human apolipoprotein B (apoB) mRNA assembled functional editosomes and deaminated C6666 to U in a mooring sequence-dependent fashion. The occurrence of APOBEC-1-complementing proteins suggested a naturally occurring mRNA editing mechanism in yeast. Previously, a hidde...

journal_title：Nucleic acids research

authors： Dance GS,Beemiller P,Yang Y,Mater DV,Mian IS,Smith HC

更新日期：2001-04-15 00:00:00

abstract：:PARP1 and PARP2 are implicated in the synthesis of poly(ADP-ribose) (PAR) after detection of DNA damage. The specificity of PARP1 and PARP2 interaction with long DNA fragments containing single- and/or double-strand breaks (SSBs and DSBs) have been studied using atomic force microscopy (AFM) imaging in combination wit...

journal_title：Nucleic acids research

authors： Sukhanova MV,Abrakhi S,Joshi V,Pastre D,Kutuzov MM,Anarbaev RO,Curmi PA,Hamon L,Lavrik OI

更新日期：2016-04-07 00:00:00

abstract：:Conformations of 8-bromo-2'-[unk]-triisopropylbenzenesulfonyladenosine ([unk]) and its 3'-[unk]-isomer ([unk]) in solution have been determined by the use of intramolecular nuclear Overhauser effects in (1)H NMR spectroscopy. Compound [unk] has been proved to have a conformation in which the adenosine and benzene ring...

journal_title：Nucleic acids research

authors： Ueyama M,Tori K,Ikehara M,Kaneko M

更新日期：1974-06-01 00:00:00

abstract：:The activation of a telomere maintenance mechanism is required for cancer development in humans. While most tumors achieve this by expressing the enzyme telomerase, a fraction (5-15%) employs a recombination-based mechanism termed alternative lengthening of telomeres (ALT). Here we show that loss of the single-strande...

journal_title：Nucleic acids research

authors： Grudic A,Jul-Larsen A,Haring SJ,Wold MS,Lønning PE,Bjerkvig R,Bøe SO

更新日期：2007-01-01 00:00:00

abstract：:The DNA unwinding element (DUE) is a sequence rich in adenine and thymine residues present within the origin region of both prokaryotic and eukaryotic replicons. Recently, it has been shown that this is the site where bacterial DnaA proteins, the chromosomal replication initiators, form a specific nucleoprotein filame...

journal_title：Nucleic acids research

authors： Wegrzyn K,Fuentes-Perez ME,Bury K,Rajewska M,Moreno-Herrero F,Konieczny I

更新日期：2014-07-01 00:00:00

abstract：:New linker phosphoramidite reagents containing a cleavable 3'-ester linkage are used for attaching the first nucleoside to the surface of a solid- phase support. Inexpensive, underivatized amino supports, such as long chain alkylamine controlled-pore glass, can serve as universal supports. No modifications to phosphor...

journal_title：Nucleic acids research

authors： Pon RT,Yu S

更新日期：2004-01-29 00:00:00

abstract：:The mRNA export complex TREX (TREX) is known to contain Aly, UAP56, Tex1 and the THO complex, among which UAP56 is required for TREX assembly. Here, we systematically investigated the role of each human TREX component in TREX assembly and its association with the mRNA. We found that Tex1 is essentially a subunit of th...

journal_title：Nucleic acids research

authors： Chi B,Wang Q,Wu G,Tan M,Wang L,Shi M,Chang X,Cheng H

更新日期：2013-01-01 00:00:00

abstract：:The positive role of PARP1 in regulation of various nuclear DNA transactions is well established. Although a mitochondrial localization of PARP1 has been suggested, its role in the maintenance of the mitochondrial DNA is currently unknown. Here we investigated the role of PARP1 in the repair of the mitochondrial DNA i...

journal_title：Nucleic acids research

authors： Szczesny B,Brunyanszki A,Olah G,Mitra S,Szabo C

更新日期：2014-12-01 00:00:00

abstract：:Human telomerase reverse transcriptase (hTERT), the catalytic subunit of human telomerase, contains conserved motifs common to retroviral reverse transcriptases and telomerases. Within the C motif of hTERT is the Leu866-Val867-Asp868-Asp869 tetrapeptide that includes a catalytically essential aspartate dyad. Site-dire...

journal_title：Nucleic acids research

authors： Drosopoulos WC,Prasad VR

更新日期：2007-01-01 00:00:00

abstract：:The Protein Circular Dichroism Data Bank (PCDDB) has been in operation for more than 5 years as a public repository for archiving circular dichroism spectroscopic data and associated bioinformatics and experimental metadata. Since its inception, many improvements and new developments have been made in data display, se...

journal_title：Nucleic acids research

authors： Whitmore L,Miles AJ,Mavridis L,Janes RW,Wallace BA

更新日期：2017-01-04 00:00:00

abstract：:Escherichia coli Exonuclease I (ExoI) digests single-stranded DNA (ssDNA) in the 3'-5' direction in a highly processive manner. The crystal structure of ExoI, determined previously in the absence of DNA, revealed a C-shaped molecule with three domains that form a central positively charged groove. The active site is a...

journal_title：Nucleic acids research

authors： Korada SK,Johns TD,Smith CE,Jones ND,McCabe KA,Bell CE

更新日期：2013-06-01 00:00:00

abstract：:The sequence requirements for specific and efficient transcription from the 16S/23S rRNA promoter of Sulfolobus shibatae were analysed by point mutations and by cassette mutations using an in vitro transcription system. The examination of the box A-containing distal promoter element (DPE) showed the great importance o...

journal_title：Nucleic acids research

authors： Hain J,Reiter WD,Hüdepohl U,Zillig W

更新日期：1992-10-25 00:00:00

abstract：:A single base change in 16S rRNA (C726 to G) has previously been shown to have a dramatic effect on protein synthesis in E. coli (1). This paper more specifically details the effects of the mutation on mRNA binding and translation-termination. The in vitro technique of toeprinting (2) was used to demonstrate that 30S ...

journal_title：Nucleic acids research

authors： Prescott CD,Göringer HU

更新日期：1990-09-25 00:00:00

abstract：:Bloom's syndrome helicase (BLM) is a member of the RecQ family of DNA helicases, which play key roles in the maintenance of genome integrity in all organism groups. We describe crystal structures of the BLM helicase domain in complex with DNA and with an antibody fragment, as well as SAXS and domain association studie...

journal_title：Nucleic acids research

authors： Newman JA,Savitsky P,Allerston CK,Bizard AH,Özer Ö,Sarlós K,Liu Y,Pardon E,Steyaert J,Hickson ID,Gileadi O

更新日期：2015-05-26 00:00:00

abstract：:The gene encoding the DNA methyltransferase M.CviRI from Chlorella virus XZ-6E was cloned and expressed in Escherichia coli. M.CviRI methylates adenine in TGCA sequences. DNA containing the M.CviRI gene was sequenced and a single open reading frame of 1137 bp was identified which could code for a polypeptide of 379 am...

journal_title：Nucleic acids research

authors： Stefan C,Xia YN,Van Etten JL

更新日期：1991-01-25 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：:We show that using low denaturation temperatures (80-88 degrees C) during ligation mediated PCR (LM PCR) of bacterial DNA leads to the amplification of limited sets of the less stable DNA fragments. A set of electrophoretic patterns of such fragments obtained at different denaturation temperatures forms the PCR meltin...

journal_title：Nucleic acids research

authors： Masny A,Płucienniczak A

更新日期：2003-09-15 00:00:00

abstract：:An effective tool for the global analysis of both DNA methylation status and protein-chromatin interactions is a microarray constructed with sequences containing regulatory elements. One type of array suited for this purpose takes advantage of the strong association between CpG Islands (CGIs) and gene regulatory regio...

journal_title：Nucleic acids research

authors： Heisler LE,Torti D,Boutros PC,Watson J,Chan C,Winegarden N,Takahashi M,Yau P,Huang TH,Farnham PJ,Jurisica I,Woodgett JR,Bremner R,Penn LZ,Der SD

更新日期：2005-05-23 00:00:00

abstract：:Chemically modified siRNAs are expected to have resistance toward nuclease degradation and good thermal stability in duplex formation for in vivo applications. We have recently found that 2'-OMe-4'-thioRNA, a hybrid chemical modification based on 2'-OMeRNA and 4'-thioRNA, has high hybridization affinity for complement...

journal_title：Nucleic acids research

authors： Takahashi M,Nagai C,Hatakeyama H,Minakawa N,Harashima H,Matsuda A

更新日期：2012-07-01 00:00:00

abstract：:The molecular mechanism in pancreatic β cells underlying hyperlipidemia and insulin insufficiency remains unclear. Here, we find that the fatty acid-induced decrease in insulin levels occurs due to a decrease in insulin translation. Since regulation at the translational level is generally mediated through RNA-binding ...

journal_title：Nucleic acids research

authors： Li Z,Zhou M,Cai Z,Liu H,Zhong W,Hao Q,Cheng D,Hu X,Hou J,Xu P,Xue Y,Zhou Y,Xu T

更新日期：2018-12-14 00:00:00

abstract：:Methionyl-tRNA synthetase belongs to the class I aminoacyl-tRNA synthetase family characterized both by a catalytic center built around a Rossmann Fold and by the presence of the two peptidic marker sequences HIGH and KMSKS. In this study, the role of the 21HLGH24 motif of Escherichia coli methionyl-tRNA synthetase wa...

journal_title：Nucleic acids research

authors： Schmitt E,Panvert M,Blanquet S,Mechulam Y

更新日期：1995-12-11 00:00:00

abstract：:This study unveils Mycobacterium smegmatis DinB2 as the founder of a clade of Y-family DNA polymerase that is naturally adept at incorporating ribonucleotides by virtue of a leucine in lieu of a canonical aromatic steric gate. DinB2 efficiently scavenges limiting dNTP and rNTP substrates in the presence of manganese. ...

journal_title：Nucleic acids research

authors： Ordonez H,Uson ML,Shuman S

更新日期：2014-01-01 00:00:00

abstract：:A sixty base pair DNA duplex containing the nucleotide sequence of the bacteriophage T5 early (T5P25) promoter has been constructed using a combination of chemical synthesis and enzymatic methods. Subsequent to cloning into pBR322, the promoter has been demonstrated to be biologically active being capable of directing...

journal_title：Nucleic acids research

authors： Rommens J,MacKnight D,Pomeroy-Cloney L,Jay E

更新日期：1983-09-10 00:00:00

abstract：:Both Streptomyces lividans and Streptomyces avermitilis encode similar systems of post-replicative DNA modification which act site-specifically on closely opposed guanines on either strand. The modifications can be detected since they react in vitro with an oxidative derivative of Tris, resulting in strand cleavage. P...

journal_title：Nucleic acids research

authors： Boybek A,Ray TD,Evans MC,Dyson PJ

更新日期：1998-07-15 00:00:00

abstract：:The design of a family shuffling strategy (CLERY: Combinatorial Libraries Enhanced by Recombination in Yeast) associating PCR-based and in vivo recombination and expression in yeast is described. This strategy was tested using human cytochrome P450 CYP1A1 and CYP1A2 as templates, which share 74% nucleotide sequence id...

journal_title：Nucleic acids research

authors： Abécassis V,Pompon D,Truan G

更新日期：2000-10-15 00:00:00

abstract：:A tetradecanucleotide U-A-G-C(U-C-G)2G-G-C-Up corresponding to bases 21-34 of a nascent sequence of formylmethionyl tRNA of E. coli has been synthesized by the joining of two combinations of chemically synthesized oligonucleotides: 1) U-A-G-C + U-C-G-U-C-G + G-G-C-Up and 2) U-A-G-C + U-C-G-U + C-G-G-G-C-Up. In reactio...

journal_title：Nucleic acids research

authors： Ohtsuka E,Doi T,Uemura H,Taniyama Y,Ikehara M

更新日期：1980-09-11 00:00:00

abstract：:Post-transcriptional modifications are characteristic features of tRNAs and have been shown in a number of cases to influence both their structural and functional properties, including structure stabilization, amino-acylation and codon recognition. We have developed an approach which allows the investigation of the po...

journal_title：Nucleic acids research

authors： Helm M,Florentz C,Chomyn A,Attardi G

更新日期：1999-02-01 00:00:00

abstract：:Residual dipolar coupling (RDC) represents one of the most exciting emerging NMR techniques for protein structure studies. However, solving a protein structure using RDC data alone is still a highly challenging problem. We report here a computer program, RDC-PROSPECT, for protein structure prediction based on a struct...

journal_title：Nucleic acids research

authors： Qu Y,Guo JT,Olman V,Xu Y

更新日期：2004-01-26 00:00:00

abstract：:Human telomerase is a ribonucleoprotein which uses its internal RNA moiety as a template for telomeric DNA synthesis. This enzyme is up-regulated in most malignant tumors and is therefore considered as a possible cancer target. Here we examined the effects of differently modified oligomers on telomeraseactivity from H...

journal_title：Nucleic acids research

authors： Matthes E,Lehmann C

更新日期：1999-02-15 00:00:00