An in vivo genetic screen for genes involved in spliced leader trans-splicing indicates a crucial role for continuous de novo spliced leader RNP assembly.

Abstract:

:Spliced leader (SL) trans-splicing is a critical element of gene expression in a number of eukaryotic groups. This process is arguably best understood in nematodes, where biochemical and molecular studies in Caenorhabditis elegans and Ascaris suum have identified key steps and factors involved. Despite this, the precise details of SL trans-splicing have yet to be elucidated. In part, this is because the systematic identification of the molecules involved has not previously been possible due to the lack of a specific phenotype associated with defects in this process. We present here a novel GFP-based reporter assay that can monitor SL1 trans-splicing in living C. elegans. Using this assay, we have identified mutants in sna-1 that are defective in SL trans-splicing, and demonstrate that reducing function of SNA-1, SNA-2 and SUT-1, proteins that associate with SL1 RNA and related SmY RNAs, impairs SL trans-splicing. We further demonstrate that the Sm proteins and pICln, SMN and Gemin5, which are involved in small nuclear ribonucleoprotein assembly, have an important role in SL trans-splicing. Taken together these results provide the first in vivo evidence for proteins involved in SL trans-splicing, and indicate that continuous replacement of SL ribonucleoproteins consumed during trans-splicing reactions is essential for effective trans-splicing.

journal_name

Nucleic Acids Res

journal_title

Nucleic acids research

authors

Philippe L,Pandarakalam GC,Fasimoye R,Harrison N,Connolly B,Pettitt J,Müller B

doi

10.1093/nar/gkx500

subject

Has Abstract

pub_date

2017-08-21 00:00:00

pages

8474-8483

issue

14

eissn

0305-1048

issn

1362-4962

pii

3860636

journal_volume

45

pub_type

杂志文章
  • Protein binding sites on Escherichia coli 16S ribosomal RNA; RNA regions that are protected by proteins S7, S9 and S19, and by proteins S8, S15 and S17.

    abstract::Selected groups of isolated 14C-labelled proteins from E. coli 30S ribosomal subunits were reconstituted with 32P-labelled 16S RNA, and the reconstituted complexes were partially digested with ribonuclease A. RNA fragments protected by the proteins were separated by gel electrophoresis and subjected to sequence analys...

    journal_title:Nucleic acids research

    pub_type: 杂志文章

    doi:10.1093/nar/16.4.1233

    authors: Wiener L,Schüler D,Brimacombe R

    更新日期:1988-02-25 00:00:00

  • Nuclear magnetic resonance studies on yeast tRNAPhe I. Assignment of the iminoproton resonances of the acceptor and D stem by means of Nuclear Overhauser Effect experiments at 500 MHz.

    abstract::Resonances of the water exchangeable iminoprotons of the acceptor and D stem of yeast tRNAPhe have been assigned by means of Nuclear Overhauser Effects (NOE's). Assignments were made for spectra recorded from tRNA dialysed against a buffer with 110 mM sodium and 5 mM magnesium ions and against a buffer with 430 mM sod...

    journal_title:Nucleic acids research

    pub_type: 杂志文章

    doi:10.1093/nar/10.21.6981

    authors: Heerschap A,Haasnoot CA,Hilbers CW

    更新日期:1982-11-11 00:00:00

  • Cas9-chromatin binding information enables more accurate CRISPR off-target prediction.

    abstract::The CRISPR system has become a powerful biological tool with a wide range of applications. However, improving targeting specificity and accurately predicting potential off-targets remains a significant goal. Here, we introduce a web-based CR: ISPR/Cas9 O: ff-target P: rediction and I: dentification T: ool (CROP-IT) th...

    journal_title:Nucleic acids research

    pub_type: 杂志文章

    doi:10.1093/nar/gkv575

    authors: Singh R,Kuscu C,Quinlan A,Qi Y,Adli M

    更新日期:2015-10-15 00:00:00

  • Interactions between avian myeloblastosis reverse transcriptase and tRNATrp. Mapping of complexed tRNA with chemicals and nucleases.

    abstract::The interactions between beef tRNATrp with avian myeloblastosis reverse transcriptase have been studied by statistical chemical modifications of phosphate (ethylnitrosourea) and cytidine (dimethyl sulfate) residues, as well as by digestion of complexed tRNA by Cobra venom nuclease and Neurospora crassa endonuclease. R...

    journal_title:Nucleic acids research

    pub_type: 杂志文章

    doi:10.1093/nar/12.5.2259

    authors: Garret M,Romby P,Giegé R,Litvak S

    更新日期:1984-03-12 00:00:00

  • Long noncoding RNA OCC-1 suppresses cell growth through destabilizing HuR protein in colorectal cancer.

    abstract::Overexpressed in colon carcinoma-1 (OCC-1) is one of the earliest annotated long noncoding RNAs (lncRNAs) in colorectal cancer (CRC); however, its function remains largely unknown. Here, we revealed that OCC-1 plays a tumor suppressive role in CRC. OCC-1 knockdown by RNA interference promotes cell growth both in vitro...

    journal_title:Nucleic acids research

    pub_type: 杂志文章

    doi:10.1093/nar/gky214

    authors: Lan Y,Xiao X,He Z,Luo Y,Wu C,Li L,Song X

    更新日期:2018-06-20 00:00:00

  • Transcriptional activation by mitochondrial transcription factor A involves preferential distortion of promoter DNA.

    abstract::Mitochondrial transcription factor A (mtTFA/TFAM) is a nucleus-encoded, high-mobility-group-box (HMG-box) protein that regulates transcription of the mitochondrial genome by specifically recognizing light-strand and heavy-strand promoters (LSP, HSP1). TFAM also binds mitochondrial DNA in a non-sequence specific (NSS) ...

    journal_title:Nucleic acids research

    pub_type: 杂志文章

    doi:10.1093/nar/gkr787

    authors: Malarkey CS,Bestwick M,Kuhlwilm JE,Shadel GS,Churchill ME

    更新日期:2012-01-01 00:00:00

  • Role of interaction energy in the specificity of transcription. II-The Watson Crick A-U base pair template.

    abstract::In continuation with work regarding the evaluation of the energy of association of various RNA bases with various base pairs, the results of the computations of the electrostatic interaction energy of A-U base pair with four RNA bases viz. Adenine, Uracil, Guanine and Cytosine have been reported. Non bonded induced po...

    journal_title:Nucleic acids research

    pub_type: 杂志文章

    doi:10.1093/nar/8.17.3983

    authors: Sanyal NK,Kumar U,Roychoudhury M

    更新日期:1980-09-11 00:00:00

  • Size heterogeneity of EBV and mitochondrial DNAs in Burkitt's lymphoma lines.

    abstract::A simple, reproducible affinity chromatography method has been adapted for separation of high molecular weight supercoiled circular molecules from mammalian cells. Electron microscopic analysis of EB viral DNA obtained by this method, from the non-producer Burkitt's lymphoma line Raji, revealed monomer-sized viral mol...

    journal_title:Nucleic acids research

    pub_type: 杂志文章

    doi:10.1093/nar/15.24.10345

    authors: Kinchington D,Griffin BE

    更新日期:1987-12-23 00:00:00

  • Investigation of Mg2+- and temperature-dependent folding of the hairpin ribozyme by photo-crosslinking: effects of photo-crosslinker tether length and chemistry.

    abstract::We have used photo-crosslinking to investigate the structure and dynamics of four-way junction hairpin ribozyme constructs. Four phenylazide photo-crosslinkers were coupled to 2'-NH2-modified U+2 in the substrate and irradiated at different Mg2+ concentrations and temperatures. Consistent with the role of divalent met...

    journal_title:Nucleic acids research

    pub_type: 杂志文章

    doi:10.1093/nar/gki237

    authors: Borda EJ,Sigurdsson ST

    更新日期:2005-02-18 00:00:00

  • Modification of the aminopyridine unit of 2'-deoxyaminopyridinyl-pseudocytidine allowing triplex formation at CG interruptions in homopurine sequences.

    abstract::The antigene strategy based on site-specific recognition of duplex DNA by triplex DNA formation has been exploited in a wide range of biological activities. However, specific triplex formation is mostly restricted to homo-purine strands within the target duplex DNA, due to the destabilizing effect of CG and TA inversi...

    journal_title:Nucleic acids research

    pub_type: 杂志文章

    doi:10.1093/nar/gky704

    authors: Wang L,Taniguchi Y,Okamura H,Sasaki S

    更新日期:2018-09-28 00:00:00

  • Helicobacter pylori DprA alleviates restriction barrier for incoming DNA.

    abstract::Helicobacter pylori is a Gram-negative bacterium that colonizes human stomach and causes gastric inflammation. The species is naturally competent and displays remarkable diversity. The presence of a large number of restriction-modification (R-M) systems in this bacterium creates a barrier against natural transformatio...

    journal_title:Nucleic acids research

    pub_type: 杂志文章

    doi:10.1093/nar/gkt024

    authors: Dwivedi GR,Sharma E,Rao DN

    更新日期:2013-03-01 00:00:00

  • EpoDB: a prototype database for the analysis of genes expressed during vertebrate erythropoiesis.

    abstract::EpoDB is a database of genes expressed in vertebrate red blood cells. It is also a prototype for the creation of cell and tissue-specific databases from multiple external sources. The information in EpoDB obtained from GenBank, SWISS-PROT, Transfac, TRRD and GERD is curated to provide high quality data for sequence an...

    journal_title:Nucleic acids research

    pub_type: 杂志文章

    doi:10.1093/nar/27.1.200

    authors: Stoeckert CJ Jr,Salas F,Brunk B,Overton GC

    更新日期:1999-01-01 00:00:00

  • Simple and straightforward construction of a mouse gene targeting vector using in vitro transposition reactions.

    abstract::In a gene targeting experiment, the generation of a targeting construct often requires complex DNA manipulations. We developed a set of cassettes and plasmids useful for creating targeting vectors to modify the mammalian genome. A positive selection marker cassette (PGK/EM7p-npt), which included dual prokaryotic and e...

    journal_title:Nucleic acids research

    pub_type: 杂志文章

    doi:10.1093/nar/gni055

    authors: Aoyama M,Agari K,Sun-Wada GH,Futai M,Wada Y

    更新日期:2005-03-22 00:00:00

  • Analysis of neonatal brain lacking ATRX or MeCP2 reveals changes in nucleosome density, CTCF binding and chromatin looping.

    abstract::ATRX and MeCP2 belong to an expanding group of chromatin-associated proteins implicated in human neurodevelopmental disorders, although their gene-regulatory activities are not fully resolved. Loss of ATRX prevents full repression of an imprinted gene network in the postnatal brain and in this study we address the mec...

    journal_title:Nucleic acids research

    pub_type: 杂志文章

    doi:10.1093/nar/gku564

    authors: Kernohan KD,Vernimmen D,Gloor GB,Bérubé NG

    更新日期:2014-07-01 00:00:00

  • Ab initio gene identification in metagenomic sequences.

    abstract::We describe an algorithm for gene identification in DNA sequences derived from shotgun sequencing of microbial communities. Accurate ab initio gene prediction in a short nucleotide sequence of anonymous origin is hampered by uncertainty in model parameters. While several machine learning approaches could be proposed t...

    journal_title:Nucleic acids research

    pub_type: 杂志文章

    doi:10.1093/nar/gkq275

    authors: Zhu W,Lomsadze A,Borodovsky M

    更新日期:2010-07-01 00:00:00

  • The processing of repetitive extragenic palindromes: the structure of a repetitive extragenic palindrome bound to its associated nuclease.

    abstract::Extragenic sequences in genomes, such as microRNA and CRISPR, are vital players in the cell. Repetitive extragenic palindromic sequences (REPs) are a class of extragenic sequences, which form nucleotide stem-loop structures. REPs are found in many bacterial species at a high copy number and are important in regulation...

    journal_title:Nucleic acids research

    pub_type: 杂志文章

    doi:10.1093/nar/gks741

    authors: Messing SA,Ton-Hoang B,Hickman AB,McCubbin AJ,Peaslee GF,Ghirlando R,Chandler M,Dyda F

    更新日期:2012-10-01 00:00:00

  • RetrOryza: a database of the rice LTR-retrotransposons.

    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

    pub_type: 杂志文章

    doi:10.1093/nar/gkl780

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

    更新日期:2007-01-01 00:00:00

  • Meta-analysis of small RNA-sequencing errors reveals ubiquitous post-transcriptional RNA modifications.

    abstract::Recent advances in DNA-sequencing technology have made it possible to obtain large datasets of small RNA sequences. Here we demonstrate that not all non-perfectly matched small RNA sequences are simple technological sequencing errors, but many hold valuable biological information. Analysis of three small RNA datasets ...

    journal_title:Nucleic acids research

    pub_type: 杂志文章,meta分析

    doi:10.1093/nar/gkp093

    authors: Ebhardt HA,Tsang HH,Dai DC,Liu Y,Bostan B,Fahlman RP

    更新日期:2009-05-01 00:00:00

  • m7G5'ppp5'GmptcpUp at the 5' terminus of reovirus messenger RNA.

    abstract::In the presence of S-adenosyl methionine the 5' terminal guanosine residue of in vitro synthesized reovirus mRNA becomes methylated at the 2'-OH position. In addition, 7-methyl guanylic acid is condensed covalently at the 5' terminus resulting in the formation of a 5' to 5' triphosphate bridge. Analysis of the 5' term...

    journal_title:Nucleic acids research

    pub_type: 杂志文章

    doi:10.1093/nar/2.8.1329

    authors: Faust M,Hastings KE,Millward S

    更新日期:1975-08-01 00:00:00

  • Analysis of distribution of bases in the coding sequences by a diagrammatic technique.

    abstract::The frequencies of occurrence of four bases in the first, second and third codon positions and in the total coding sequences have been calculated by the codon usage table published in 1990 by Ikemura et al. The distribution of frequencies are further analysed in detail by a graphic technique presented recently by us. ...

    journal_title:Nucleic acids research

    pub_type: 杂志文章

    doi:10.1093/nar/19.22.6313

    authors: Zhang CT,Zhang R

    更新日期:1991-11-25 00:00:00

  • Conditional DNA repair mutants enable highly precise genome engineering.

    abstract::Oligonucleotide-mediated multiplex genome engineering is an important tool for bacterial genome editing. The efficient application of this technique requires the inactivation of the endogenous methyl-directed mismatch repair system that in turn leads to a drastically elevated genomic mutation rate and the consequent a...

    journal_title:Nucleic acids research

    pub_type: 杂志文章

    doi:10.1093/nar/gku105

    authors: Nyerges Á,Csorgő B,Nagy I,Latinovics D,Szamecz B,Pósfai G,Pál C

    更新日期:2014-04-01 00:00:00

  • Nuclear RNA transcripts from Drosophila melanogaster ribosomal RNA genes containing introns.

    abstract::The transcription of ribosomal genes in a cell line (Kc) derived from female D.melanogaster, has been investigated using hybridization probes prepared from restriction fragments of a cloned rDNA repeat with a 5 kb type I [Wellauer et al. (1978) Cell 14, 269-278] intron. Gels, of nuclear RNA that have been transferred ...

    journal_title:Nucleic acids research

    pub_type: 杂志文章

    doi:10.1093/nar/8.1.67

    authors: Jolly DJ,Thomas CA Jr

    更新日期:1980-01-11 00:00:00

  • COVID19 Drug Repository: text-mining the literature in search of putative COVID19 therapeutics.

    abstract::The recent outbreak of COVID-19 has generated an enormous amount of Big Data. To date, the COVID-19 Open Research Dataset (CORD-19), lists ∼130,000 articles from the WHO COVID-19 database, PubMed Central, medRxiv, and bioRxiv, as collected by Semantic Scholar. According to LitCovid (11 August 2020), ∼40,300 COVID19-re...

    journal_title:Nucleic acids research

    pub_type: 杂志文章

    doi:10.1093/nar/gkaa969

    authors: Tworowski D,Gorohovski A,Mukherjee S,Carmi G,Levy E,Detroja R,Mukherjee SB,Frenkel-Morgenstern M

    更新日期:2021-01-08 00:00:00

  • Ribosomal DNA genes of Bombyx mori: a minor fraction of the repeating units contain insertions.

    abstract::We have analyzed multiple recombinant DNA clones containing ribosomal RNA repeat units of the silkmoth, Bombyx mori. In combination with genomic DNA blots, analysis of these clones indicated that the rDNA repeat of B. mori is 10.8 kilobase pair in length and tandemly repeated in the genome, as reported by Manning et a...

    journal_title:Nucleic acids research

    pub_type: 杂志文章

    doi:10.1093/nar/12.11.4703

    authors: Lecanidou R,Eickbush TH,Kafatos FC

    更新日期:1984-06-11 00:00:00

  • Direct calculation of the sizes of DNA fragments separated by gel electrophoresis using programmes written for a pocket calculator.

    abstract::In order to facilitate the direct computation of the sizes of DNA fragments separated by gel electrophoresis, we have written and evaluated programmes for the Hewlett-Packard 41C programmable calculator. The sizes estimated for DNA fragments of known length using some of these programmes were found to be more accurate...

    journal_title:Nucleic acids research

    pub_type: 杂志文章

    doi:10.1093/nar/12.1part2.845

    authors: Gough EJ,Gough NM

    更新日期:1984-01-11 00:00:00

  • The leader region of Laminin B1 mRNA confers cap-independent translation.

    abstract::Translation initiation of eukaryotic mRNAs generally occurs by cap-dependent ribosome scanning. However, certain mRNAs contain internal ribosome entry sites (IRES) allowing cap-independent translation. Several of these IRES-competent transcripts and their corresponding proteins are involved in tumourigenesis. This stu...

    journal_title:Nucleic acids research

    pub_type: 杂志文章

    doi:10.1093/nar/gkm096

    authors: Petz M,Kozina D,Huber H,Siwiec T,Seipelt J,Sommergruber W,Mikulits W

    更新日期:2007-01-01 00:00:00

  • Phosphorylation of an intrinsically disordered region of Ets1 shifts a multi-modal interaction ensemble to an auto-inhibitory state.

    abstract::Multi-modal interactions are frequently observed in intrinsically disordered regions (IDRs) of proteins upon binding to their partners. In many cases, post-translational modifications in IDRs are accompanied by coupled folding and binding. From both molecular simulations and biochemical experiments with mutational stu...

    journal_title:Nucleic acids research

    pub_type: 杂志文章

    doi:10.1093/nar/gkx1297

    authors: Kasahara K,Shiina M,Higo J,Ogata K,Nakamura H

    更新日期:2018-03-16 00:00:00

  • Upstream box/TATA box order is the major determinant of the direction of transcription.

    abstract::Mammalian gene promoters for transcription by RNA polymerase II are typically organized in the following order: upstream sequence motif(s)/TATA box/initiation site. Here we report studies in which the order, orientation and DNA sequences of these three elements are varied to determine how these affect polarity of tran...

    journal_title:Nucleic acids research

    pub_type: 杂志文章

    doi:10.1093/nar/19.24.6699

    authors: Xu LC,Thali M,Schaffner W

    更新日期:1991-12-25 00:00:00

  • Summarizing and correcting the GC content bias in high-throughput sequencing.

    abstract::GC content bias describes the dependence between fragment count (read coverage) and GC content found in Illumina sequencing data. This bias can dominate the signal of interest for analyses that focus on measuring fragment abundance within a genome, such as copy number estimation (DNA-seq). The bias is not consistent b...

    journal_title:Nucleic acids research

    pub_type: 杂志文章

    doi:10.1093/nar/gks001

    authors: Benjamini Y,Speed TP

    更新日期:2012-05-01 00:00:00

  • Site-directed, Ligase-Independent Mutagenesis (SLIM): a single-tube methodology approaching 100% efficiency in 4 h.

    abstract::Site-directed, Ligase-Independent Mutagenesis (SLIM) is a novel PCR-mediated mutagenesis approach that can accommodate all three sequence modification types (insertion, deletion and substitution). The method utilizes an inverse PCR amplification of the template by two tailed long primers and two short primers in a sin...

    journal_title:Nucleic acids research

    pub_type: 杂志文章

    doi:10.1093/nar/gnh172

    authors: Chiu J,March PE,Lee R,Tillett D

    更新日期:2004-12-07 00:00:00