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

abstract：:Skeletal muscle is the dominant executant in locomotion and regulator in energy metabolism. Embryonic myogenesis and postnatal muscle growth are controlled by a cascade of transcription factors and epigenetic regulatory mechanisms. MicroRNAs (miRNAs), a family of non-coding RNA of 22 nucleotides in length, post-transc...

journal_title：RNA biology

authors： Ma M,Wang X,Chen X,Cai R,Chen F,Dong W,Yang G,Pang W

更新日期：2017-03-04 00:00:00

abstract：:Alzheimer's disease (AD) is a progressive neurodegenerative disorder and the most common dementia among the elderly. The pathophysiology of AD is characterized by two hallmarks: amyloid plaques, produced by amyloid β (Aβ) aggregation, and neurofibrillary tangle (NFT), produced by accumulation of phosphorylated tau. Th...

journal_title：RNA biology

authors： Li D,Zhang J,Li X,Chen Y,Yu F,Liu Q

更新日期：2020-07-14 00:00:00

abstract：:Physical entanglement, and particularly knots arise spontaneously in equilibrated polymers that are sufficiently long and densely packed. Biopolymers are no exceptions: knots have long been known to occur in proteins as well as in encapsidated viral DNA. The rapidly growing number of RNA structures has recently made i...

journal_title：RNA biology

authors： Burton AS,Di Stefano M,Lehman N,Orland H,Micheletti C

更新日期：2016-01-01 00:00:00

abstract：:The muscle specific miRNA, miR-206, is important for the process of myogenesis; however, studying the function of miR-206 in muscle development and differentiation still proves challenging because the complement of mRNA targets it regulates remains undefined. In addition, miR-206 shares close sequence similarity to mi...

journal_title：RNA biology

authors： Salant GM,Tat KL,Goodrich JA,Kugel JF

更新日期：2020-07-01 00:00:00

abstract：:Proper base-pairing of a miRNA with its target mRNA is a key step in miRNA-mediated mRNA repression. RNA remodelling by RNA-binding proteins (RBPs) can improve access of miRNAs to their target mRNAs. The largest isoform p45 of the RBP AUF1 has previously been shown to remodel viral or AU-rich RNA elements. Here, we sh...

journal_title：RNA biology

authors： Sänger L,Bender J,Rostowski K,Golbik R,Lilie H,Schmidt C,Behrens SE,Friedrich S

更新日期：2020-09-29 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 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：: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：: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

authors： Koonin EV

更新日期：2014-01-01 00:00:00

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

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

更新日期：2015-01-01 00:00:00

abstract：:Enzymes of the cytosine-5 RNA methyltransferase Trm4/NSun2 family methylate tRNAs at C48 and C49 in multiple tRNAs, as well as C34 and C40 in selected tRNAs. In contrast to most other organisms, fission yeast Schizosaccharomyces pombe carries two Trm4/NSun2 homologs, Trm4a (SPAC17D4.04) and Trm4b (SPAC23C4.17). Here, ...

journal_title：RNA biology

authors： Müller M,Samel-Pommerencke A,Legrand C,Tuorto F,Lyko F,Ehrenhofer-Murray AE

更新日期：2019-03-01 00:00:00

abstract：:Epstein-Barr virus (EBV) was the first human cancer-causing virus to be discovered over fifty years ago. Given its relatively large genome size for a virus and hence the capacity to store more than mere protein-coding information, EBV also harbours genetic material for producing an array of distinct noncoding (nc)RNAs...

journal_title：RNA biology

authors： Lee N

更新日期：2021-01-30 00:00:00

abstract：:The universal genetic code is a translation table by which nucleic acid sequences can be interpreted as polypeptides with a wide range of biological functions. That information is used by aminoacyl-tRNA synthetases to translate the code. Moreover, amino acid properties dictate protein folding. We recently reported tha...

journal_title：RNA biology

authors： Carter CW Jr,Wolfenden R

更新日期：2016-01-01 00:00:00

abstract：:Studies on the regulation of gene expression in eukaryotes in the past 20 years have consistently revealed increasing levels of complexity. Thirty years ago it seemed that we had understood the basic principles of gene regulation in eukaryotes. It was thought that regulation of transcription was the first and most imp...

journal_title：RNA biology

authors： Collart MA,Reese JC

更新日期：2014-01-01 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：: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

authors： Caslini C

更新日期：2010-01-01 00:00:00

abstract：:A very conserved pseudoknot structure has been shown to fold in influenza virus RNA. The pseudoknot encompasses the 3' splice site of segment 8 RNA in both influenza A and B viruses. By sequence comparison of influenza virus strains, we derive a consensus motif that defines a novel RNA pseudoknot family. The orientati...

journal_title：RNA biology

authors： Gultyaev AP,Olsthoorn RC

更新日期：2010-03-01 00:00:00

abstract：:Fragile X-associated tremor/ataxia syndrome (FXTAS) is a recently identified neurodegenerative disorder affecting older adult males with premutation alleles of the fragile X mental retardation 1 (FMR1) gene. The principal clinical features of FXTAS include progressive intention tremor, gait ataxia, parkinsonism, and a...

journal_title：RNA biology

authors： Tassone F,Iwahashi C,Hagerman PJ

更新日期：2004-07-01 00:00:00

abstract：:In eukaryotes and viruses that infect them, the 5' end of mRNA molecules, and also many other functionally important RNAs, are modified to form a so-called cap structure that is important for interactions of these RNAs with many nuclear and cytoplasmic proteins. The RNA cap has multiple roles in gene expression, inclu...

journal_title：RNA biology

authors： Byszewska M,Śmietański M,Purta E,Bujnicki JM

更新日期：2014-01-01 00:00:00

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

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

abstract：:In metazoan organisms, alternative splicing is a central mechanism for the regulation of gene expression. However, many questions remain about the underlying molecular mechanisms. Our recent work suggests that U1 snRNP-independent premRNA splicing occurs in humans, which contributes to the regulation of alternative sp...

journal_title：RNA biology

authors： Fukumura K,Inoue K

更新日期：2009-09-01 00:00:00

abstract：:The subcellular localization of the nonsense mediated decay (NMD) of mRNA transcripts bearing premature termination codons has been controversial. Recently, it has been demonstrated that RNA tethering of key mediators of NMD, including human UPF3B, accurately recreates NMD. Here, we have used tethered UPF3B, combined ...

journal_title：RNA biology

authors： Lu S,Cullen BR

更新日期：2004-05-01 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：: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：:Human Enterovirus 71 (EV71) is an emerging pathogen of infectious disease and a serious threat to public health. Currently, there are no antivirals or vaccines to slow down or prevent EV71 infections, thus underscoring the urgency to better understand mechanisms of host-enterovirus interactions. EV71 uses a type I int...

journal_title：RNA biology

authors： Levengood JD,Tolbert M,Li ML,Tolbert BS

更新日期：2013-07-01 00:00:00

abstract：:Epithelial-mesenchymal interactions are required to coordinate cell proliferation, patterning, and functional differentiation of multiple cell types in a developing organ. This exquisite coordination is dependent on various secreted molecules that provide developmental signals to mediate these tissue interactions. Rec...

journal_title：RNA biology

authors： Hayashi T,Hoffman MP

更新日期：2017-12-02 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：: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

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

更新日期：2012-05-01 00:00:00

abstract：:RNase J is a prokaryotic 5'-3' exo/endoribonuclease that functions in mRNA decay and rRNA maturation. Here, we report a novel duplex unwinding activity of mpy-RNase J, an archaeal RNase J from Methanolobus psychrophilus, which enables it to degrade duplex RNAs with hairpins up to 40 bp when linking a 5' single-strande...

journal_title：RNA biology

authors： Li J,Hou Y,Gu X,Yue L,Guo L,Li D,Dong X

更新日期：2020-10-01 00:00:00

abstract：:Termination of RNA polymerase II (RNAPII) transcription is a fundamental step of gene expression that involves the release of the nascent transcript and dissociation of RNAPII from the DNA template. As transcription termination is intimately linked to RNA 3' end processing, termination pathways have a key decisive inf...

journal_title：RNA biology

authors： Lemay JF,Bachand F

更新日期：2015-01-01 00:00:00