Conserved microRNA miR-8 blocks activation of the Toll pathway by upregulating Serpin 27 transcripts.

abstract：:Prokaryotic immunity against foreign nucleic acids mediated by clustered, regularly interspaced, short palindromic repeats (CRISPR) depends on the expression of the CRISPR-associated (Cas) proteins and the formation of small CRISPR RNAs (crRNAs). The crRNA-loaded Cas ribonucleoprotein complexes convey the specific rec...

journal_title：RNA biology

authors： Arslan Z,Stratmann T,Wurm R,Wagner R,Schnetz K,Pul Ü

更新日期：2013-05-01 00:00:00

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

authors： Hammann C,Steger G

更新日期：2012-06-01 00:00:00

abstract：:Ribonuclease P (RNase P) is a ribonucleoprotein comprised of a catalytic RNA subunit and one or several protein subunits. RNase P is best known for its role in 5'-processing of tRNA precursors. RNase P enzymes from almost all forms of life, including protein-synthesizing organelles, contain an RNase P with a conserved...

journal_title：RNA biology

authors： Ellis JC,Brown JW

更新日期：2009-09-01 00:00:00

abstract：:Two different isolates of the myxomycete Didymium iridis harbour homing endonuclease genes that are expressed from group I introns inserted into identical sites within the small subunit ribosomal DNA. The homing endonuclease proteins are related in sequence, and their gene structures share similar features such as the...

journal_title：RNA biology

authors： Johansen SD,Vader A,Sjøttem E,Nielsen H

更新日期：2006-10-01 00:00:00

abstract：:The chromatoid body is a large perinuclear ribonucleoprotein particle of germ cells. The chromatoid body is also present in stem cells from planarians. This particle shares markers specific to protein aggresomes and P-bodies, and concentrate several RNA pathways. The assembly mechanism of chromatoid bodies is unknown,...

journal_title：RNA biology

authors： Roucou X

更新日期：2009-04-01 00:00:00

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

authors： Fields RN,Roy H

更新日期：2018-01-01 00:00:00

abstract：:The RNA component of the RNase P complex is found throughout most branches of the tree of life and is principally responsible for removing the 5' leader sequence from pre-tRNA transcripts during tRNA maturation. RNase P RNA has a number of universal core features, however variations in sequence and structure found in ...

journal_title：RNA biology

authors： Chan PP,Brown JW,Lowe TM

更新日期：2012-09-01 00:00:00

abstract：:microRNAs (miRNAs) are critical regulators of gene expression. For elucidating functional roles of miRNAs, it is critical to identify their direct targets. There are debates about whether pulldown of biotinylated miRNA mimics can be used to identify miRNA targets or not. Here we show that biotin-labelled miR-34a can b...

journal_title：RNA biology

authors： Awan HM,Shah A,Rashid F,Wei S,Chen L,Shan G

更新日期：2018-01-02 00:00:00

abstract：:tRNA molecules undergo extensive post-transcriptional processing to generate the mature functional tRNA species that are essential for translation in all organisms. These processing steps include the introduction of numerous specific chemical modifications to nucleotide bases and sugars; among these modifications, met...

journal_title：RNA biology

authors： Swinehart WE,Jackman JE

更新日期：2015-01-01 00:00:00

abstract：:Seryl-tRNA synthetase (SerRS) catalyzes the ligation of serine to the 3'-end of serine tRNA (tRNA(Ser)), which is typical of the type-2 tRNAs characterized by a long extra arm. The SerRSs are divided into two types, the archaeal/eukaryal and bacterial types. In this study, we solved the crystal structures of the SerRS...

journal_title：RNA biology

authors： Itoh Y,Sekine S,Kuroishi C,Terada T,Shirouzu M,Kuramitsu S,Yokoyama S

更新日期：2008-07-01 00:00:00

abstract：:Staphylococcus aureus is one of the major human pathogens, which causes numerous community-associated and hospital-acquired infections. The regulation of the expression of numerous virulence factors is coordinated by complex interplays between two component systems, transcriptional regulatory proteins, and regulatory ...

journal_title：RNA biology

authors： Romilly C,Caldelari I,Parmentier D,Lioliou E,Romby P,Fechter P

更新日期：2012-04-01 00:00:00

abstract：:Significant structural and mechanistic similarities between the spliceosomal snRNAs and catalytically critical domains of self-splicing group II introns have led to the hypothesis that the spliceosomes and group II introns may be evolutionarily related. We have previously shown that in vitro-transcribed, protein-free ...

journal_title：RNA biology

authors： Jaladat Y,Zhang B,Mohammadi A,Valadkhan S

更新日期：2011-05-01 00:00:00

abstract：:The human genome encodes several thousand long non-protein coding transcripts>200 nucleotides in length, a subset of which were shown to play important roles in regulation of gene expression. We recently identified TINCR, a lncRNA required for induction of key differentiation genes in epidermal tissue, including genes...

journal_title：RNA biology

authors： Kretz M

更新日期：2013-10-01 00:00:00

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

authors： Valastyan S,Weinberg RA

更新日期：2009-11-01 00:00:00

abstract：:The immaculate annotation of all microRNAs (miRNAs) is a prerequisite to study their biological function on a genome-wide scale. However, the original criteria for proper miRNA annotation seem unsuited for the automated analysis of the immense number of small RNA reads available in next generation sequencing (NGS) dat...

journal_title：RNA biology

authors： Hansen TB,Kjems J,Bramsen JB

更新日期：2011-05-01 00:00:00

abstract：:De novo addition of telomeric sequences can occur at broken chromosomes and must be well controlled, which is essential during programmed DNA reorganization processes. In ciliated protozoa an extreme form of DNA-reorganization is observed during macronuclear differentiation after sexual reproduction leading to the eli...

journal_title：RNA biology

authors： Fuhrmann G,Jönsson F,Weil PP,Postberg J,Lipps HJ

更新日期：2016-08-02 00:00:00

abstract：:The endoribonuclease toxins of the E. coli toxin-antitoxin systems arrest bacterial growth and protein synthesis by targeting cellular mRNAs. As an exception, E. coli MazF was reported to cleave also 16S rRNA at a single site and separate an anti-Shine-Dalgarno sequence-containing RNA fragment from the ribosome. We no...

journal_title：RNA biology

authors： Mets T,Lippus M,Schryer D,Liiv A,Kasari V,Paier A,Maiväli Ü,Remme J,Tenson T,Kaldalu N

更新日期：2017-01-02 00:00:00

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

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

更新日期：2012-12-01 00:00:00

abstract：:The genus Xanthomonas comprises a large group of plant-pathogenic bacteria. The infection and bacterial multiplication in the plant tissue depends on the type III secretion system and other virulence determinants. Recent studies revealed that bacterial virulence is also controlled at the post-transcriptional level by ...

journal_title：RNA biology

authors： Abendroth U,Schmidtke C,Bonas U

更新日期：2014-01-01 00:00:00

abstract：:A recent study revealed that poly(A)-binding protein (PABP) bound to poly(A) RNA exhibits a sharply bent configuration at the linker region between RNA-recognition motif 2 (RRM2) and RRM3, whereas free PABP exhibits a highly flexible linear configuration. However, the physiological role of the bent structure of mRNA-b...

journal_title：RNA biology

authors： Hong KY,Lee SH,Gu S,Kim E,An S,Kwon J,Lee JB,Jang SK

更新日期：2017-03-04 00:00:00

abstract：:MicroRNAs (miRNAs) are key regulators of gene expression and play critical roles in modulating metabolism, development and physiology in animals and plants. miRNA levels are transcriptionally and post-transcriptionally controlled for their proper function. Recent studies have shown that RNA-binding proteins play impor...

journal_title：RNA biology

authors： Ren G,Yu B

更新日期：2012-12-01 00:00:00

abstract：:Deinococcus radiodurans is a highly stress resistant bacterium that encodes universal as well as lineage-specific factors involved in DNA transcription and repair. However, the effects of DNA lesions on RNA synthesis by D. radiodurans RNA polymerase (RNAP) have never been studied. We investigated the ability of this R...

journal_title：RNA biology

authors： Agapov A,Esyunina D,Kulbachinskiy A

更新日期：2019-12-01 00:00:00

abstract：:RNA helicases contribute to diverse aspects of RNA metabolism through their functions in re-arranging RNA structures. Identification of the remodelling targets of RNA helicases is a critical step in elucidating their cellular functions. Here, we show that, in contrast to many other ribosome biogenesis factors, the DEx...

journal_title：RNA biology

authors： Choudhury P,Kretschmer J,Hackert P,Bohnsack KE,Bohnsack MT

更新日期：2020-10-13 00:00:00

abstract：:As a mental framework for the transition of self-replicating biological forms, the RNA world concept stipulates a dual function of RNAs as genetic substance and catalyst. The chaperoning function is found intrinsic to ribozymes involved in protein synthesis and tRNA maturation, enriching the primordial RNA world with ...

journal_title：RNA biology

authors： Son A,Horowitz S,Seong BL

更新日期：2021-01-01 00:00:00

abstract：:The acquisition of antibiotic resistance by human pathogens poses a significant threat to public health. The mechanisms that control the proliferation and expression of antibiotic resistance genes are not yet completely understood. The aminoglycosides are a historically important class of antibiotics that were introdu...

journal_title：RNA biology

authors： He W,Zhang X,Zhang J,Jia X,Zhang J,Sun W,Jiang H,Chen D,Murchie AI

更新日期：2013-08-01 00:00:00

abstract：:Many splicing regulators bind to their own pre-mRNAs to induce alternative splicing that leads to formation of unstable mRNA isoforms. This provides an autoregulatory feedback mechanism that regulates the cellular homeostasis of these factors. We have described such an autoregulatory mechanism for two core protein com...

journal_title：RNA biology

authors： Niemelä EH,Verbeeren J,Singha P,Nurmi V,Frilander MJ

更新日期：2015-01-01 00:00:00

abstract：:In the last years, a number of nuclear genes restoring cytoplasmic male sterility (CMS) have been cloned in various crop species. The majority of these genes have been shown to encode pentatricopeptide repeat proteins (PPR) that act by specifically suppressing the expression of sterility-causing mitochondrial transcri...

journal_title：RNA biology

authors： Dahan J,Mireau H

更新日期：2013-01-01 00:00:00

abstract：:We investigated the gene-expression variation among humans by analysing previously published mRNA-seq and ribosome footprint profiling of heart left-ventricles from healthy donors. We ranked the genes according to their coefficient of variation values and found that the top 5% most variable genes had special features ...

journal_title：RNA biology

authors： Domitrovic T,Moreira MH,Carneiro RL,Ribeiro-Alves M,Palhano FL

更新日期：2020-12-11 00:00:00

abstract：:Differential mRNA stability is an important mechanism for regulation of virulence factors in Streptococcus pyogenes (group A streptococcus, GAS), a serious and prevalent human pathogen. We have described 2 Classes of mRNA in GAS that are distinguishable by 1) stability in the stationary phase of growth, 2) kinetics of...

journal_title：RNA biology

authors： Bugrysheva JV,Scott JR

更新日期：2010-09-01 00:00:00

abstract：:Selenoproteins are a unique class of proteins that contain the 21st amino acid, selenocysteine (Sec). Addition of Sec into a protein is achieved by recoding of the UGA stop codon. All 25 mammalian selenoprotein mRNAs possess a 3' UTR stem-loop structure, the Selenocysteine Insertion Sequence (SECIS), which is required...

journal_title：RNA biology

authors： Cockman EM,Narayan V,Willard B,Shetty SP,Copeland PR,Driscoll DM

更新日期：2019-12-01 00:00:00