IF2 and unique features of initiator tRNAfMet help establish the translational reading frame.

Abstract:

:Translation begins at AUG, GUG, or UUG codons in bacteria. Start codon recognition occurs in the P site, which may help explain this first-position degeneracy. However, the molecular basis of start codon specificity remains unclear. In this study, we measured the codon dependence of 30S•mRNA•tRNAfMet and 30S•mRNA•tRNAMet complex formation. We found that complex stability varies over a large range with initiator tRNAfMet, following the same trend as reported previously for initiation rate in vivo (AUG > GUG, UUG > CUG, AUC, AUA > ACG). With elongator tRNAMet, the codon dependence of binding differs qualitatively, with virtually no discrimination between GUG and CUG. A unique feature of initiator tRNAfMet is a series of three G-C basepairs in the anticodon stem, which are known to be important for efficient initiation in vivo. A mutation targeting the central of these G-C basepairs causes the mRNA binding specificity pattern to change in a way reminiscent of elongator tRNAMet. Unexpectedly, for certain complexes containing fMet-tRNAfMet, we observed mispositioning of mRNA, such that codon 2 is no longer programmed in the A site. This mRNA mispositioning is exacerbated by the anticodon stem mutation and suppressed by IF2. These findings suggest that both IF2 and the unique anticodon stem of fMet-tRNAfMet help constrain mRNA positioning to set the correct reading frame during initiation.

journal_name

RNA Biol

journal_title

RNA biology

authors

Roy B,Liu Q,Shoji S,Fredrick K

doi

10.1080/15476286.2017.1379636

subject

Has Abstract

pub_date

2018-01-01 00:00:00

pages

604-613

issue

4-5

eissn

1547-6286

issn

1555-8584

journal_volume

15

pub_type

杂志文章
  • Variations on the tmRNA gene.

    abstract::tmRNA employs both tRNA-like and mRNA-like properties as it rescues stalled bacterial ribosomes, while targeting the defective mRNA and incomplete nascent protein for degradation. We describe variation of the tmRNA gene (ssrA) and how it informs tmRNA structure and function. Endosymbiont tmRNAs tend to lose secondary ...

    journal_title:RNA biology

    pub_type: 杂志文章

    doi:10.4161/rna.6.4.9172

    authors: Mao C,Bhardwaj K,Sharkady SM,Fish RI,Driscoll T,Wower J,Zwieb C,Sobral BW,Williams KP

    更新日期:2009-09-01 00:00:00

  • Characterization of cis-acting elements that control oscillating alternative splicing.

    abstract::Alternative splicing (AS) in response to changing external conditions often requires alterations in the ability of sequence-specific RNA-binding proteins to bind to cis-acting sequences in their target pre-mRNA. While daily oscillations in AS events have been described in several organisms, cis-acting sequences that c...

    journal_title:RNA biology

    pub_type: 杂志文章

    doi:10.1080/15476286.2018.1502587

    authors: Goldammer G,Neumann A,Strauch M,Müller-McNicoll M,Heyd F,Preußner M

    更新日期:2018-01-01 00:00:00

  • Regulation of gene expression through inefficient splicing of U12-type introns.

    abstract::U12-type introns are a rare class of nuclear introns that are removed by a dedicated U12-dependent spliceosome and are thought to regulate the expression of their target genes owing through their slower splicing reaction. Recent genome-wide studies on the splicing of U12-type introns are now providing new insights on ...

    journal_title:RNA biology

    pub_type: 杂志文章

    doi:10.1080/15476286.2014.996454

    authors: Niemelä EH,Frilander MJ

    更新日期:2014-01-01 00:00:00

  • A comprehensive profile of circulating RNAs in human serum.

    abstract::Non-coding RNA (ncRNA) molecules have fundamental roles in cells and many are also stable in body fluids as extracellular RNAs. In this study, we used RNA sequencing (RNA-seq) to investigate the profile of small non-coding RNA (sncRNA) in human serum. We analyzed 10 billion Illumina reads from 477 serum samples, inclu...

    journal_title:RNA biology

    pub_type: 杂志文章

    doi:10.1080/15476286.2017.1403003

    authors: Umu SU,Langseth H,Bucher-Johannessen C,Fromm B,Keller A,Meese E,Lauritzen M,Leithaug M,Lyle R,Rounge TB

    更新日期:2018-02-01 00:00:00

  • Identification of a region of hantavirus nucleocapsid protein required for RNA chaperone activity.

    abstract::Sin Nombre hantavirus (SNV) is a New World hantavirus and causes hantavirus cardiopulmonary syndrome. The viral nucleocapsid protein (N) is an RNA chaperone and has multiple functions important in virus replication. The three negative sense RNA segments of hantaviruses form panhandle structures through imperfect hydro...

    journal_title:RNA biology

    pub_type: 杂志文章

    doi:10.4161/rna.7.6.13862

    authors: Brown BA,Panganiban AT

    更新日期:2010-11-01 00:00:00

  • Cleavage factor Im is a key regulator of 3' UTR length.

    abstract::In eukaryotes, the 3' ends of RNA polymerase II-transcribed RNAs are generated in the majority of cases by site-specific endonucleolytic cleavage, followed by the addition of a poly(A) tail. Through alternative polyadenylation, a gene can give rise to multiple mRNA isoforms that differ in the length of their 3' UTRs a...

    journal_title:RNA biology

    pub_type: 杂志文章

    doi:10.4161/rna.22570

    authors: Gruber AR,Martin G,Keller W,Zavolan M

    更新日期:2012-12-01 00:00:00

  • The emerging role of pre-messenger RNA splicing in stress responses: sending alternative messages and silent messengers.

    abstract::Alternative splicing (AS) of pre-messenger RNAs is a major process contributing to both transcriptome and proteome diversity in various physiological and pathological situations. There is also accumulating evidence that various stresses impact on AS. In particular, recent analyses of the transcriptome reveal large num...

    journal_title:RNA biology

    pub_type: 杂志文章,评审

    doi:10.4161/rna.8.5.16016

    authors: Dutertre M,Sanchez G,Barbier J,Corcos L,Auboeuf D

    更新日期:2011-09-01 00:00:00

  • Assaying microRNA loss-of-function phenotypes in mammalian cells: emerging tools and their potential therapeutic utility.

    abstract::MicroRNAs are small, non-coding RNAs that are increasingly appreciated to play critical roles in the modulation of gene expression. In mammalian cells, our knowledge regarding the full impact of microRNAs on cellular behavior remains fragmentary. This has been due, in significant part, to the limited availability of e...

    journal_title:RNA biology

    pub_type: 杂志文章,评审

    doi:10.4161/rna.6.5.10081

    authors: Valastyan S,Weinberg RA

    更新日期:2009-11-01 00:00:00

  • Viroid-specific small RNA in plant disease.

    abstract::Viroids are the smallest autonomous infectious nucleic acids known today. They are non-coding, unencapsidated, circular RNAs with sizes ranging from 250 to 400 nucleotides and infect certain plants. These RNAs are transcribed by rolling-circle mechanisms in the plant host's nuclei (Pospiviroidae) or chloroplasts (Avsu...

    journal_title:RNA biology

    pub_type: 杂志文章,评审

    doi:10.4161/rna.19810

    authors: Hammann C,Steger G

    更新日期:2012-06-01 00:00:00

  • Synthesis of cysteinyl-tRNACys by a prolyl-tRNA synthetase.

    abstract::The question of how cysteinyl-tRNA(Cys) is synthesized in organisms that lack a canonical cysteinyl-tRNA synthetase (CysRS) is an important open question in understanding protein synthesis. The prolyl-tRNA synthetase (ProRS) of wide ranging organisms has the ability to mis-activate cysteine without editing. This raise...

    journal_title:RNA biology

    pub_type: 杂志文章

    doi:

    authors: Zhang CM,Hou YM

    更新日期:2004-05-01 00:00:00

  • Constraint and opportunity in genome innovation.

    abstract::The development of rigorous molecular taxonomy pioneered by Carl Woese has freed evolution science to explore numerous cellular activities that lead to genome change in evolution. These activities include symbiogenesis, inter- and intracellular horizontal DNA transfer, incorporation of DNA from infectious agents, and ...

    journal_title:RNA biology

    pub_type: 杂志文章,评审

    doi:10.4161/rna.27506

    authors: Shapiro JA

    更新日期:2014-01-01 00:00:00

  • RNA-mediated chaperone type for de novo protein folding.

    abstract::Traditionally the principles of protein folding in vivo have been obtained largely from molecular chaperone studies. Through extensive studies on molecular chaperones, it becomes clear that most proteins can fold without their assistance in vivo, suggesting the existence of other chaperone types and mechanisms. Since ...

    journal_title:RNA biology

    pub_type: 杂志文章,评审

    doi:10.4161/rna.6.1.7441

    authors: Choi SI,Ryu K,Seong BL

    更新日期:2009-01-01 00:00:00

  • Replicating Potato spindle tuber viroid mediates de novo methylation of an intronic viroid sequence but no cleavage of the corresponding pre-mRNA.

    abstract::In plants, Potato spindle tuber viroid (PSTVd) replication triggers post-transcriptional gene silencing (PTGS) and RNA-directed DNA methylation (RdDM) of homologous RNA and DNA sequences, respectively. PTGS predominantly occurs in the cytoplasm, but nuclear PTGS has been also reported. In this study, we investigated w...

    journal_title:RNA biology

    pub_type: 杂志文章

    doi:10.1080/15476286.2015.1017216

    authors: Dalakouras A,Dadami E,Bassler A,Zwiebel M,Krczal G,Wassenegger M

    更新日期:2015-01-01 00:00:00

  • Suppression of microRNAs by dual-targeting and clustered Tough Decoy inhibitors.

    abstract::MicroRNAs (miRNAs) are ubiquitous regulators of gene expression that contribute to almost any cellular process. Methods for managing of miRNA activity are attracting increasing attention in relation to diverse experimental and therapeutic applications. DNA-encoded miRNA inhibitors expressed from plasmid or virus-based...

    journal_title:RNA biology

    pub_type: 杂志文章

    doi:10.4161/rna.23543

    authors: Hollensen AK,Bak RO,Haslund D,Mikkelsen JG

    更新日期:2013-03-01 00:00:00

  • A high density of cis-information terminates RNA Polymerase III on a 2-rail track.

    abstract::Transcription termination delineates the 3' ends of transcripts, prevents otherwise runaway RNA polymerase (RNAP) from intruding into downstream genes and regulatory elements, and enables release of the RNAP for recycling. While other eukaryotic RNAPs require complex cis-signals and/or accessory factors to achieve the...

    journal_title:RNA biology

    pub_type: 杂志文章

    doi:10.1080/15476286.2015.1116677

    authors: Arimbasseri AG,Maraia RJ

    更新日期:2016-01-01 00:00:00

  • xRRM: a new class of RRM found in the telomerase La family protein p65.

    abstract::Genuine La and La-related proteins group 7 (LARP7) bind to the non-coding RNAs transcribed by RNA polymerase III (RNAPIII), which end in UUU-3'OH. The La motif and RRM1 of these proteins (the La module) cooperate to bind the UUU-3'OH, protecting the RNA from degradation, while other domains may be important for RNA fo...

    journal_title:RNA biology

    pub_type: 杂志文章,评审

    doi:10.4161/rna.23608

    authors: Singh M,Choi CP,Feigon J

    更新日期:2013-03-01 00:00:00

  • Transcriptional regulation of telomeric non-coding RNA: implications on telomere biology, replicative senescence and cancer.

    abstract::Telomeres, protective nucleoprotein structures located at the ends of eukaryotic chromosomes and until recently regarded as transcriptionally silent, are now known to be transcribed into non-coding RNA molecules called TERRA. The function(s) of TERRA in telomere metabolism is now the subject of intense study given the...

    journal_title:RNA biology

    pub_type: 杂志文章,评审

    doi:10.4161/rna.7.1.10257

    authors: Caslini C

    更新日期:2010-01-01 00:00:00

  • Deciphering the tRNA-dependent lipid aminoacylation systems in bacteria: Novel components and structural advances.

    abstract::tRNA-dependent addition of amino acids to lipids on the outer surface of the bacterial membrane results in decreased effectiveness of antimicrobials such as cationic antimicrobial peptides (CAMPs) that target the membrane, and increased virulence of several pathogenic species. After a brief introduction to CAMPs and t...

    journal_title:RNA biology

    pub_type: 杂志文章,评审

    doi:10.1080/15476286.2017.1356980

    authors: Fields RN,Roy H

    更新日期:2018-01-01 00:00:00

  • The bacterial CRISPR/Cas system as analog of the mammalian adaptive immune system.

    abstract::Bacteria, like mammals, have to constantly defend themselves from viral attack. Like mammals, they use both innate and adaptive defense mechanisms. In this point of view we highlight the commonalities between defense systems of bacteria and mammals. Our focus is on the recently discovered bacterial adaptive immune sys...

    journal_title:RNA biology

    pub_type: 杂志文章

    doi:10.4161/rna.20177

    authors: Goren M,Yosef I,Edgar R,Qimron U

    更新日期:2012-05-01 00:00:00

  • Bi-phased regulation of the post-transcriptional inflammatory response by Tristetraprolin levels.

    abstract::AU-rich elements (AREs) are cis-acting instability and translation inhibition elements that are present in the 3'UTR of most inducible inflammatory mRNAs such as TNF and Cxcl2. mRNAs that contain AREs are, by default, repressed and only transiently expressed in response to stimuli. They are targeted by the inducible R...

    journal_title:RNA biology

    pub_type: 杂志文章

    doi:10.1080/15476286.2019.1572437

    authors: Mahmoud L,Moghrabi W,Khabar KSA,Hitti EG

    更新日期:2019-03-01 00:00:00

  • Identification of linc-NeD125, a novel long non coding RNA that hosts miR-125b-1 and negatively controls proliferation of human neuroblastoma cells.

    abstract::The human genome contains some thousands of long non coding RNAs (lncRNAs). Many of these transcripts are presently considered crucial regulators of gene expression and functionally implicated in developmental processes in Eukaryotes. Notably, despite a huge number of lncRNAs are expressed in the Central Nervous Syste...

    journal_title:RNA biology

    pub_type: 杂志文章

    doi:10.1080/15476286.2015.1096488

    authors: Bevilacqua V,Gioia U,Di Carlo V,Tortorelli AF,Colombo T,Bozzoni I,Laneve P,Caffarelli E

    更新日期:2015-01-01 00:00:00

  • Carl Woese's vision of cellular evolution and the domains of life.

    abstract::In a series of conceptual articles published around the millennium, Carl Woese emphasized that evolution of cells is the central problem of evolutionary biology, that the three-domain ribosomal tree of life is an essential framework for reconstructing cellular evolution, and that the evolutionary dynamics of functiona...

    journal_title:RNA biology

    pub_type: 杂志文章,评审

    doi:10.4161/rna.27673

    authors: Koonin EV

    更新日期:2014-01-01 00:00:00

  • Pentatricopeptide repeats: modular blocks for building RNA-binding proteins.

    abstract::Pentatricopeptide repeat (PPR) proteins control diverse aspects of RNA metabolism across the eukaryotic domain. Recent computational and structural studies have provided new insights into how they recognize RNA, and show that the recognition is sequence-specific and modular. The modular code for RNA-binding by PPR pro...

    journal_title:RNA biology

    pub_type: 杂志文章

    doi:10.4161/rna.24769

    authors: Filipovska A,Rackham O

    更新日期:2013-01-01 00:00:00

  • Screening of small molecules affecting mammalian P-body assembly uncovers links with diverse intracellular processes and organelle physiology.

    abstract::Processing bodies (P-bodies) are cytoplasmatic mRNP granules containing non-translating mRNAs and proteins from the mRNA decay and silencing machineries. The mechanism of P-body assembly has been typically addressed by depleting P-body components. Here we apply a complementary approach and establish an automated cell-...

    journal_title:RNA biology

    pub_type: 杂志文章

    doi:10.4161/rna.26851

    authors: Martínez JP,Pérez-Vilaró G,Muthukumar Y,Scheller N,Hirsch T,Diestel R,Steinmetz H,Jansen R,Frank R,Sasse F,Meyerhans A,Díez J

    更新日期:2013-11-01 00:00:00

  • Full-length sequence assembly reveals circular RNAs with diverse non-GT/AG splicing signals in rice.

    abstract::Circular RNAs (circRNAs) have been identified in diverse eukaryotic species and are characterized by RNA backsplicing events. Current available methods for circRNA identification are able to determine the start and end locations of circRNAs in the genome but not their full-length sequences. In this study, we developed...

    journal_title:RNA biology

    pub_type: 杂志文章

    doi:10.1080/15476286.2016.1245268

    authors: Ye CY,Zhang X,Chu Q,Liu C,Yu Y,Jiang W,Zhu QH,Fan L,Guo L

    更新日期:2017-08-03 00:00:00

  • Requirement of the CsdA DEAD-box helicase for low temperature riboregulation of rpoS mRNA.

    abstract::The ribosome binding site of Escherichia coli rpoS mRNA, encoding the stationary sigma-factor RpoS, is sequestered by an inhibitory stem-loop structure (iss). Translational activation of rpoS mRNA at low temperature and during exponential growth includes Hfq-facilitated duplex formation between rpoS and the small regu...

    journal_title:RNA biology

    pub_type: 杂志文章

    doi:10.4161/rna.7.6.13768

    authors: Resch A,Većerek B,Palavra K,Bläsi U

    更新日期:2010-11-01 00:00:00

  • Toward a crystal-clear view of the viral RNA sensing and response by RIG-I-like receptors.

    abstract::The RIG-I-like receptors (RLRs)--RIG-I, MDA5, and LGP2--detect intracellular pathogenic RNA and elicit an antiviral immune response during viral infection. The protein architecture of the RLR family consists of multiple functional domains, including N-terminal Caspase Activation and Recruitment Domains (CARDs) for sig...

    journal_title:RNA biology

    pub_type: 杂志文章,评审

    doi:10.4161/rna.27717

    authors: Luo D

    更新日期:2014-01-01 00:00:00

  • The Csr/Rsm system of Yersinia and related pathogens: a post-transcriptional strategy for managing virulence.

    abstract::This review emphasizes the function and regulation of the Csr regulatory system in the human enteropathogen Yersinia pseudotuberculosis and compares its features with the homologous Csr/Rsm systems of related pathogens. The Csr/Rsm systems of eubacteria form a complex regulatory network in which redundant non-translat...

    journal_title:RNA biology

    pub_type: 杂志文章,评审

    doi:10.4161/rna.19333

    authors: Heroven AK,Böhme K,Dersch P

    更新日期:2012-04-01 00:00:00

  • Proteome distribution between nucleoplasm and nucleolus and its relation to ribosome biogenesis in Arabidopsis thaliana.

    abstract::Ribosome biogenesis is an essential process initiated in the nucleolus. In eukaryotes, multiple ribosome biogenesis factors (RBFs) can be found in the nucleolus, the nucleus and in the cytoplasm. They act in processing, folding and modification of the pre-ribosomal (r)RNAs, incorporation of ribosomal proteins (RPs), e...

    journal_title:RNA biology

    pub_type: 杂志文章

    doi:10.1080/15476286.2016.1154252

    authors: Palm D,Simm S,Darm K,Weis BL,Ruprecht M,Schleiff E,Scharf C

    更新日期:2016-01-01 00:00:00

  • Glioma microvesicles carry selectively packaged coding and non-coding RNAs which alter gene expression in recipient cells.

    abstract::Interactions between glioma cells and their local environment are critical determinants of brain tumor growth, infiltration and neovascularisation. Communication with host cells and stroma via microvesicles represents one pathway by which tumors can modify their surroundings to achieve a tumor-permissive environment. ...

    journal_title:RNA biology

    pub_type: 杂志文章

    doi:10.4161/rna.25281

    authors: Li CC,Eaton SA,Young PE,Lee M,Shuttleworth R,Humphreys DT,Grau GE,Combes V,Bebawy M,Gong J,Brammah S,Buckland ME,Suter CM

    更新日期:2013-08-01 00:00:00