The k-junction motif in RNA structure.

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 riboswitch contains a related k-junction, and analysis of >11 000 sequences shows that the structure is common to these riboswitches. The k-junction exhibits all the key features of an N1-class k-turn, including the standard cross-strand hydrogen bonds. The third helix of the junction is coaxially aligned with the C (canonical) helix, while the k-turn loop forms the turn into the NC (non-canonical) helix. Analysis of ligand binding by ITC and global folding by gel electrophoresis demonstrates the importance of the k-turn nucleotides. Clearly the basic elements of k-turn structure are structurally well suited to generate a three-way helical junction, retaining all the key features and interactions of the k-turn.

journal_name

Nucleic Acids Res

journal_title

Nucleic acids research

authors

Wang J,Daldrop P,Huang L,Lilley DM

doi

10.1093/nar/gku144

subject

Has Abstract

pub_date

2014-04-01 00:00:00

pages

5322-31

issue

8

eissn

0305-1048

issn

1362-4962

pii

gku144

journal_volume

42

pub_type

杂志文章
  • The RIG-I ATPase core has evolved a functional requirement for allosteric stabilization by the Pincer domain.

    abstract::Retinoic acid-inducible gene I (RIG-I) is a pattern recognition receptor expressed in metazoan cells that is responsible for eliciting the production of type I interferons and pro-inflammatory cytokines upon detection of intracellular, non-self RNA. Structural studies of RIG-I have identified a novel Pincer domain com...

    journal_title:Nucleic acids research

    pub_type: 杂志文章

    doi:10.1093/nar/gku817

    authors: Rawling DC,Kohlway AS,Luo D,Ding SC,Pyle AM

    更新日期:2014-10-01 00:00:00

  • Comparison of approaches for rational siRNA design leading to a new efficient and transparent method.

    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

    pub_type: 杂志文章

    doi:10.1093/nar/gkm088

    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

  • Recognition of prokaryotic promoters based on a novel variable-window Z-curve method.

    abstract::Transcription is the first step in gene expression, and it is the step at which most of the regulation of expression occurs. Although sequenced prokaryotic genomes provide a wealth of information, transcriptional regulatory networks are still poorly understood using the available genomic information, largely because a...

    journal_title:Nucleic acids research

    pub_type: 杂志文章

    doi:10.1093/nar/gkr795

    authors: Song K

    更新日期:2012-02-01 00:00:00

  • Structural basis for S-adenosylmethionine binding and methyltransferase activity by mitochondrial transcription factor B1.

    abstract::Eukaryotic transcription factor B (TFB) proteins are homologous to KsgA/Dim1 ribosomal RNA (rRNA) methyltransferases. The mammalian TFB1, mitochondrial (TFB1M) factor is an essential protein necessary for mitochondrial gene expression. TFB1M mediates an rRNA modification in the small ribosomal subunit and thus plays a...

    journal_title:Nucleic acids research

    pub_type: 杂志文章

    doi:10.1093/nar/gkt547

    authors: Guja KE,Venkataraman K,Yakubovskaya E,Shi H,Mejia E,Hambardjieva E,Karzai AW,Garcia-Diaz M

    更新日期:2013-09-01 00:00:00

  • The p16INK4a tumor suppressor controls p21WAF1 induction in response to ultraviolet light.

    abstract::p16INK4a and p21WAF1, two major cyclin-dependent kinase inhibitors, are the products of two tumor suppressor genes that play important roles in various cellular metabolic pathways. p21WAF1 is up-regulated in response to different DNA damaging agents. While the activation of p21WAF1 is p53-dependent following -rays, th...

    journal_title:Nucleic acids research

    pub_type: 杂志文章

    doi:10.1093/nar/gkl1075

    authors: Al-Mohanna MA,Al-Khalaf HH,Al-Yousef N,Aboussekhra A

    更新日期:2007-01-01 00:00:00

  • Site-directed integration of the cre gene mediated by Cre recombinase using a combination of mutant lox sites.

    abstract::The Cre-lox system is an important tool for genetic manipulation. To promote integrative reactions, two strategies using mutant lox sites have been developed. One is the left element/right element (LE/RE)-mutant strategy and the other is the cassette exchange strategy using heterospecific lox sites such as lox511 or l...

    journal_title:Nucleic acids research

    pub_type: 杂志文章

    doi:10.1093/nar/gnf102

    authors: Araki K,Araki M,Yamamura K

    更新日期:2002-10-01 00:00:00

  • Structures of apo IRF-3 and IRF-7 DNA binding domains: effect of loop L1 on DNA binding.

    abstract::Interferon regulatory factors IRF-3 and IRF-7 are transcription factors essential in the activation of interferon-β (IFN-β) gene in response to viral infections. Although, both proteins recognize the same consensus IRF binding site AANNGAAA, they have distinct DNA binding preferences for sites in vivo. The X-ray struc...

    journal_title:Nucleic acids research

    pub_type: 杂志文章

    doi:10.1093/nar/gkr325

    authors: De Ioannes P,Escalante CR,Aggarwal AK

    更新日期:2011-09-01 00:00:00

  • Structure, stability and function of 5-chlorouracil modified A:U and G:U base pairs.

    abstract::The thymine analog 5-chlorouridine, first reported in the 1950s as anti-tumor agent, is known as an effective mutagen, clastogen and toxicant as well as an effective inducer of sister-chromatid exchange. Recently, the first microorganism with a chemically different genome was reported; the selected Escherichia coli st...

    journal_title:Nucleic acids research

    pub_type: 杂志文章

    doi:10.1093/nar/gks1316

    authors: Patra A,Harp J,Pallan PS,Zhao L,Abramov M,Herdewijn P,Egli M

    更新日期:2013-02-01 00:00:00

  • SRF and MCM1 have related but distinct DNA binding specificities.

    abstract::The mammalian transcription factor SRF and the yeast regulatory protein MCM1 contain DNA binding domains that are 70% identical; moreover, both proteins can bind the serum response element in the human c-fos promoter. Here we present an analysis of MCM1 sequence specificity by selection of sites from random sequence o...

    journal_title:Nucleic acids research

    pub_type: 杂志文章

    doi:10.1093/nar/20.13.3297

    authors: Wynne J,Treisman R

    更新日期:1992-07-11 00:00:00

  • The nucleotide sequence of 5.8S rRNA from the posterior silk gland of the silkworm Philosamia cynthia ricini.

    abstract::The nucleotide sequence of 5.8S rRNA from the Chinese silkworm Philosamia cynthia ricini has been determined by gel sequencing and mobility shift methods. The complete primary structure is (sequence in text). This is one of the largest known 5.8S rRNAs. As compared to Bombyx 5.8S rRNA, it is two nucleotides longer; t...

    journal_title:Nucleic acids research

    pub_type: 杂志文章

    doi:10.1093/nar/10.20.6383

    authors: Feng YX,Krupp G,Gross HJ

    更新日期:1982-10-25 00:00:00

  • Multiplexed tandem PCR: gene profiling from small amounts of RNA using SYBR Green detection.

    abstract::Multiplexed tandem PCR (MT-PCR) is a process for highly multiplexed gene expression profiling. In the first step, multiple primer pairs are added to the RNA to be analysed together with reverse transcriptase and Taq DNA polymerase. Following reverse transcription, the multiplexed amplicons are simultaneously amplified...

    journal_title:Nucleic acids research

    pub_type: 杂志文章

    doi:10.1093/nar/gni182

    authors: Stanley KK,Szewczuk E

    更新日期:2005-11-24 00:00:00

  • Raman spectral studies of nucleic acids. XVII. Conformational structures of polyinosinic acid.

    abstract::Laser-Raman spectra of poly(rI) show the formation of an ordered complex in aqueous solutions of high ionic strength. This structure exhibits the A-helix geometry, contains stacked bases and is apparently stabilized by specific hydrogen bonding involving hypoxanthine C6=0 groups. Thermal dissociation of the poly(rI) c...

    journal_title:Nucleic acids research

    pub_type: 杂志文章

    doi:10.1093/nar/4.7.2407

    authors: Chou CH,Thomas GJ Jr,Arnott S,Smith PJ

    更新日期:1977-07-01 00:00:00

  • Use of gap repair in fission yeast to obtain novel alleles of specific genes.

    abstract::We have adapted a method for making libraries of mutations in any specific gene for use in the fission yeast Schizosaccharomyces pombe . This elegant and simple method consists of PCR amplification of the gene of interest, followed by co-transformation of fission yeast with the PCR fragment and a linearized plasmid ve...

    journal_title:Nucleic acids research

    pub_type: 杂志文章

    doi:10.1093/nar/26.20.4783

    authors: Kostrub CF,Lei EP,Enoch T

    更新日期:1998-10-15 00:00:00

  • Structure of a (3+1) hybrid G-quadruplex in the PARP1 promoter.

    abstract::Poly (ADP-ribose) polymerase 1 (PARP1) has emerged as an attractive target for cancer therapy due to its key role in DNA repair processes. Inhibition of PARP1 in BRCA-mutated cancers has been observed to be clinically beneficial. Recent genome-mapping experiments have identified a non-canonical G-quadruplex-forming se...

    journal_title:Nucleic acids research

    pub_type: 杂志文章

    doi:10.1093/nar/gky1179

    authors: Sengar A,Vandana JJ,Chambers VS,Di Antonio M,Winnerdy FR,Balasubramanian S,Phan AT

    更新日期:2019-02-20 00:00:00

  • A genome landscape of SRSF3-regulated splicing events and gene expression in human osteosarcoma U2OS cells.

    abstract::Alternative RNA splicing is an essential process to yield proteomic diversity in eukaryotic cells, and aberrant splicing is often associated with numerous human diseases and cancers. We recently described serine/arginine-rich splicing factor 3 (SRSF3 or SRp20) being a proto-oncogene. However, the SRSF3-regulated splic...

    journal_title:Nucleic acids research

    pub_type: 杂志文章

    doi:10.1093/nar/gkv1500

    authors: Ajiro M,Jia R,Yang Y,Zhu J,Zheng ZM

    更新日期:2016-02-29 00:00:00

  • YM500: a small RNA sequencing (smRNA-seq) database for microRNA research.

    abstract::MicroRNAs (miRNAs) are small RNAs ∼22 nt in length that are involved in the regulation of a variety of physiological and pathological processes. Advances in high-throughput small RNA sequencing (smRNA-seq), one of the next-generation sequencing applications, have reshaped the miRNA research landscape. In this study, w...

    journal_title:Nucleic acids research

    pub_type: 杂志文章

    doi:10.1093/nar/gks1238

    authors: Cheng WC,Chung IF,Huang TS,Chang ST,Sun HJ,Tsai CF,Liang ML,Wong TT,Wang HW

    更新日期:2013-01-01 00:00:00

  • A single mutation in 16S rRNA that affects mRNA binding and translation-termination.

    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

    pub_type: 杂志文章

    doi:10.1093/nar/18.18.5381

    authors: Prescott CD,Göringer HU

    更新日期:1990-09-25 00:00:00

  • Happy mapping: a proposal for linkage mapping the human genome.

    abstract::A theoretical approach for linkage mapping the genome of any higher eukaryote is described. It uses the polymerase chain reaction, oligonucleotides of random sequence and single haploid cells. Markers are defined and then the DNA of a single sperm is broken at random (eg by gamma-rays) and physically split into 3 aliq...

    journal_title:Nucleic acids research

    pub_type: 杂志文章

    doi:10.1093/nar/17.17.6795

    authors: Dear PH,Cook PR

    更新日期:1989-09-12 00:00:00

  • Kinetic studies on the formation of intermolecular triple helices.

    abstract::We have used DNase I footprinting to examine the association kinetics of GA-, GT- and CT-containing oligonucleotides with the target sequence (GGA)5GG. (CCT)5CC. These reactions are slow yielding bimolecular association rate constants between 50 and 2000 M-1s-1. We find that GT-containing oligonucleotides bind much fa...

    journal_title:Nucleic acids research

    pub_type: 杂志文章

    doi:10.1093/nar/25.16.3269

    authors: Paes HM,Fox KR

    更新日期:1997-08-15 00:00:00

  • Downstream signaling mechanism of the C-terminal activation domain of transcriptional coactivator CoCoA.

    abstract::The coiled-coil coactivator (CoCoA) is a transcriptional coactivator for nuclear receptors and enhances nuclear receptor function by the interaction with the bHLH-PAS domain (AD3) of p160 coactivators. The C-terminal activation domain (AD) of CoCoA possesses strong transactivation activity and is required for the coac...

    journal_title:Nucleic acids research

    pub_type: 杂志文章

    doi:10.1093/nar/gkl361

    authors: Kim JH,Yang CK,Stallcup MR

    更新日期:2006-05-22 00:00:00

  • Genome sequence comparison of Col and Ler lines reveals the dynamic nature of Arabidopsis chromosomes.

    abstract::Large differences in plant genome sizes are mainly due to numerous events of insertions or deletions (indels). The balance between these events determines the evolutionary direction of genome changes. To address the question of what phenomena trigger these alterations, we compared the genomic sequences of two Arabidop...

    journal_title:Nucleic acids research

    pub_type: 杂志文章

    doi:10.1093/nar/gkp183

    authors: Ziolkowski PA,Koczyk G,Galganski L,Sadowski J

    更新日期:2009-06-01 00:00:00

  • ARGONAUTE2 cooperates with SWI/SNF complex to determine nucleosome occupancy at human Transcription Start Sites.

    abstract::Argonaute (AGO) proteins have a well-established role in post-transcriptional regulation of gene expression as key component of the RNA silencing pathways. Recent evidence involves AGO proteins in mammalian nuclear processes such as transcription and splicing, though the mechanistic aspects of AGO nuclear functions re...

    journal_title:Nucleic acids research

    pub_type: 杂志文章

    doi:10.1093/nar/gku1387

    authors: Carissimi C,Laudadio I,Cipolletta E,Gioiosa S,Mihailovich M,Bonaldi T,Macino G,Fulci V

    更新日期:2015-02-18 00:00:00

  • Microamplification of specific chromosome sequences; an improved method for genome analysis.

    abstract::An improved method was developed for microdissection and cloning of metaphase as well as pachytene chromosomes. The protocol incorporates efficient ligation of chromosomal DNA with linker adaptors, abolishment of microcloning steps and the reduction of micromanipulation. The threshold for amplifying genomic DNA templa...

    journal_title:Nucleic acids research

    pub_type: 杂志文章

    doi:10.1093/nar/25.17.3555

    authors: Ponelies N,Stein N,Weber G

    更新日期:1997-09-01 00:00:00

  • Crosslinking of hnRNP proteins to pre-mRNA requires U1 and U2 snRNPs.

    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

    pub_type: 杂志文章

    doi:10.1093/nar/18.11.3307

    authors: Mayrand SH,Pederson T

    更新日期:1990-06-11 00:00:00

  • Defective in vitro binding of histidyl-transfer ribonucleic acid to feedback resistant phosphoribosyl transferase of Salmonella typhimurium.

    abstract::We previously proposed that the first enzyme for histidine biosynthesis in Salmonellatyphimurium plays a role in regulating expression of the histidine operon and that in order to play this role the enzyme must form a complex with histidyl-tRNA. Among the many observations that led to these conclusions were 1) that re...

    journal_title:Nucleic acids research

    pub_type: 杂志文章

    doi:10.1093/nar/1.7.881

    authors: Smith O,Meyers MM,Vogel T,Deeley RD,Goldberger R

    更新日期:1974-07-01 00:00:00

  • Ribosome A and P sites revealed by length analysis of ribosome profiling data.

    abstract::The high-throughput sequencing of nuclease-protected mRNA fragments bound to ribosomes, a technique known as ribosome profiling, quantifies the relative frequencies with which different regions of transcripts are translated. This technique has revealed novel translation initiation sites with unprecedented scope and ha...

    journal_title:Nucleic acids research

    pub_type: 杂志文章

    doi:10.1093/nar/gkv200

    authors: Martens AT,Taylor J,Hilser VJ

    更新日期:2015-04-20 00:00:00

  • Modulation of HBV replication by microRNA-15b through targeting hepatocyte nuclear factor 1α.

    abstract::Hepatitis B virus (HBV) infection remains a major health problem worldwide. The role played by microRNAs (miRNAs) in HBV replication and pathogenesis is being increasingly recognized. In this study, we found that miR-15b, an important miRNA during HBV infection and hepatocellular carcinoma development, directly binds ...

    journal_title:Nucleic acids research

    pub_type: 杂志文章

    doi:10.1093/nar/gku260

    authors: Dai X,Zhang W,Zhang H,Sun S,Yu H,Guo Y,Kou Z,Zhao G,Du L,Jiang S,Zhang J,Li J,Zhou Y

    更新日期:2014-06-01 00:00:00

  • ADGO 2.0: interpreting microarray data and list of genes using composite annotations.

    abstract::ADGO 2.0 is a web-based tool that provides composite interpretations for microarray data comparing two sample groups as well as lists of genes from diverse sources of biological information. Some other tools also incorporate composite annotations solely for interpreting lists of genes but usually provide highly redund...

    journal_title:Nucleic acids research

    pub_type: 杂志文章

    doi:10.1093/nar/gkr392

    authors: Chi SM,Kim J,Kim SY,Nam D

    更新日期:2011-07-01 00:00:00

  • Methods to increase reproducibility in differential gene expression via meta-analysis.

    abstract::Findings from clinical and biological studies are often not reproducible when tested in independent cohorts. Due to the testing of a large number of hypotheses and relatively small sample sizes, results from whole-genome expression studies in particular are often not reproducible. Compared to single-study analysis, ge...

    journal_title:Nucleic acids research

    pub_type: 杂志文章

    doi:10.1093/nar/gkw797

    authors: Sweeney TE,Haynes WA,Vallania F,Ioannidis JP,Khatri P

    更新日期:2017-01-09 00:00:00

  • Visualization of novel simian virus 40 DNA recombination intermediates induced by ultraviolet light irradiation.

    abstract::Electron microscopic technique was used to examine the structures of SV40 DNA recombination intermediates induced by ultraviolet irradiation as an approach for understanding recombination mechanisms in animal cells. Putative recombination intermediate with the characteristic Holliday junction was observed in both SV40...

    journal_title:Nucleic acids research

    pub_type: 杂志文章

    doi:10.1093/nar/19.25.7193

    authors: Hsu MT

    更新日期:1991-12-01 00:00:00