CBP80 promotes interaction of Upf1 with Upf2 during nonsense-mediated mRNA decay in mammalian cells.

abstract：:Core Qβ replicase comprises the Qβ virus-encoded RNA-dependent RNA polymerase (β-subunit) and the host Escherichia coli translational elongation factors EF-Tu and EF-Ts. The functions of the host proteins in the viral replicase are not clear. Structural analyses of RNA polymerization by core Qβ replicase reveal that a...

journal_title：Nature structural & molecular biology

authors： Takeshita D,Tomita K

更新日期：2012-01-15 00:00:00

abstract：:Myosin V is a double-headed processive molecular motor that moves along an actin filament by taking 36-nm steps. Using optical trapping nanometry with high spatiotemporal resolution, we discovered that there are two possible pathways for the 36-nm steps, one with 12- and 24-nm substeps, in this order, and the other wi...

journal_title：Nature structural & molecular biology

authors： Uemura S,Higuchi H,Olivares AO,De La Cruz EM,Ishiwata S

更新日期：2004-09-01 00:00:00

abstract：:The long noncoding RNA Xist is expressed from only the paternal X chromosome in mouse preimplantation female embryos and mediates transcriptional silencing of that chromosome. In females, absence of Xist leads to postimplantation lethality. Here, through single-cell RNA sequencing of early preimplantation mouse embryo...

journal_title：Nature structural & molecular biology

authors： Borensztein M,Syx L,Ancelin K,Diabangouaya P,Picard C,Liu T,Liang JB,Vassilev I,Galupa R,Servant N,Barillot E,Surani A,Chen CJ,Heard E

更新日期：2017-03-01 00:00:00

abstract：:We present the first large-scale identification of lariats-the transient branched introns that are released as a byproduct of pre-mRNA splicing. The locations of the branchpoints in these introns provide insight into the early steps of splicing. From this data set, we have developed a comprehensive model of 3' splice-...

journal_title：Nature structural & molecular biology

authors： Taggart AJ,DeSimone AM,Shih JS,Filloux ME,Fairbrother WG

更新日期：2012-06-17 00:00:00

abstract：:Bacterial transcription is controlled by sigma factors, the RNA polymerase subunits that act as initiation factors. Although a single housekeeping sigma factor enables transcription from thousands of promoters, environmentally induced sigma factors redirect gene expression toward small regulons to carry out focused re...

journal_title：Nature structural & molecular biology

authors： Campagne S,Marsh ME,Capitani G,Vorholt JA,Allain FH

更新日期：2014-03-01 00:00:00

abstract：:In nutrient-starved bacteria, RelA and SpoT proteins have key roles in reducing cell growth and overcoming stresses. Here we identify functional SpoT orthologs in metazoa (named Mesh1, encoded by HDDC3 in human and Q9VAM9 in Drosophila melanogaster) and reveal their structures and functions. Like the bacterial enzyme,...

journal_title：Nature structural & molecular biology

authors： Sun D,Lee G,Lee JH,Kim HY,Rhee HW,Park SY,Kim KJ,Kim Y,Kim BY,Hong JI,Park C,Choy HE,Kim JH,Jeon YH,Chung J

更新日期：2010-10-01 00:00:00

abstract：:MicroRNAs (miRNAs) interact with target sites located in the 3' untranslated regions (3' UTRs) of mRNAs to downregulate their expression when the appropriate miRNA is bound to target mRNA. To establish the functional importance of target-site localization in the 3' UTR, we modified the stop codon to extend the coding ...

journal_title：Nature structural & molecular biology

authors： Gu S,Jin L,Zhang F,Sarnow P,Kay MA

更新日期：2009-02-01 00:00:00

abstract：:The core of the neurotransmitter release machinery is formed by SNARE complexes, which bring the vesicle and plasma membranes together and are key for fusion, and by Munc18-1, which controls SNARE-complex formation and may also have a direct role in fusion. In addition, SNARE complex assembly is likely orchestrated by...

journal_title：Nature structural & molecular biology

authors： Rizo J,Rosenmund C

更新日期：2008-07-01 00:00:00

abstract：:Although t-loops protect telomeres, they are at risk of cleavage by Holliday junction (HJ) resolvases if branch migration converts the three-way t-loop junction into four-way HJs. T-loop cleavage is repressed by the TRF2 basic domain, which binds three- and four-way junctions and protects HJs in vitro. By replacing th...

journal_title：Nature structural & molecular biology

authors： Schmutz I,Timashev L,Xie W,Patel DJ,de Lange T

更新日期：2017-09-01 00:00:00

abstract：:Processing of microRNAs (miRNAs) from their precursors to their biologically active mature forms is regulated during development and cancer. We show that mouse pri- or pre-miR-151 can bind to and compete with mature miR-151-5p and miR-151-3p for binding sites contained within the complementary regions of the E2f6 mRNA...

journal_title：Nature structural & molecular biology

authors： Roy-Chaudhuri B,Valdmanis PN,Zhang Y,Wang Q,Luo QJ,Kay MA

更新日期：2014-09-01 00:00:00

abstract：:Here we report the crystal structures of I.C and I.A wobble base pairs in the context of the ribosomal decoding center, clearly showing that the I.A base pair is of an I(anti).A(anti) conformation, as predicted by Crick. Additionally, the structures enable the observation of changes in the anticodon to allow purine-pu...

journal_title：Nature structural & molecular biology

authors： Murphy FV 4th,Ramakrishnan V

更新日期：2004-12-01 00:00:00

abstract：:DNA ligases finalize DNA replication and repair through DNA nick-sealing reactions that can abort to generate cytotoxic 5'-adenylation DNA damage. Aprataxin (Aptx) catalyzes direct reversal of 5'-adenylate adducts to protect genome integrity. Here the structure of a Schizosaccharomyces pombe Aptx-DNA-AMP-Zn(2+) comple...

journal_title：Nature structural & molecular biology

authors： Tumbale P,Appel CD,Kraehenbuehl R,Robertson PD,Williams JS,Krahn J,Ahel I,Williams RS

更新日期：2011-10-09 00:00:00

abstract：:Polycomb repressive complex 2 (PRC2) catalyzes methylation on lysine 27 of histone H3 (H3K27) and is required for maintaining transcriptional patterns and cellular identity, but the specification and maintenance of genomic PRC2 binding and H3K27 methylation patterns remain incompletely understood. Epigenetic mechanism...

journal_title：Nature structural & molecular biology

authors： Højfeldt JW,Laugesen A,Willumsen BM,Damhofer H,Hedehus L,Tvardovskiy A,Mohammad F,Jensen ON,Helin K

更新日期：2018-03-01 00:00:00

abstract：:Ribosome-associated quality control (RQC) represents a rescue pathway in eukaryotic cells that is triggered upon translational stalling. Collided ribosomes are recognized for subsequent dissociation followed by degradation of nascent peptides. However, endogenous RQC-inducing sequences and the mechanism underlying the...

journal_title：Nature structural & molecular biology

authors： Matsuo Y,Tesina P,Nakajima S,Mizuno M,Endo A,Buschauer R,Cheng J,Shounai O,Ikeuchi K,Saeki Y,Becker T,Beckmann R,Inada T

更新日期：2020-04-01 00:00:00

abstract：:Newly synthesized polypeptides undergo various cotranslational maturation steps, including N-terminal enzymatic processing, chaperone-assisted folding and membrane targeting, but the spatial and temporal coordination of these steps is unclear. We show that Escherichia coli methionine aminopeptidase (MAP) associates wi...

journal_title：Nature structural & molecular biology

authors： Sandikci A,Gloge F,Martinez M,Mayer MP,Wade R,Bukau B,Kramer G

更新日期：2013-07-01 00:00:00

abstract：:In bacteria, disassembly of the ribosome at the end of translation is facilitated by an essential protein factor termed ribosome recycling factor (RRF), which works in concert with elongation factor G. Here we describe the crystal structure of the Thermus thermophilus RRF bound to a 70S ribosomal complex containing a ...

journal_title：Nature structural & molecular biology

authors： Weixlbaumer A,Petry S,Dunham CM,Selmer M,Kelley AC,Ramakrishnan V

更新日期：2007-08-01 00:00:00

abstract：:Intracellular membrane fusion proceeds via distinct stages of membrane docking, hemifusion and fusion pore opening and depends on interacting families of Rab, SNARE and SM proteins. Trans-SNARE complexes dock the membranes in close apposition. Efficient fusion requires further SNARE-associated proteins. They might inc...

journal_title：Nature structural & molecular biology

authors： Pieren M,Schmidt A,Mayer A

更新日期：2010-06-01 00:00:00

abstract：:The AAA+ ATPase Vps4 disassembles ESCRT-III and is essential for HIV-1 budding and other pathways. Vps4 is a paradigmatic member of a class of hexameric AAA+ ATPases that disassemble protein complexes without degradation. To distinguish between local displacement versus global unfolding mechanisms for complex disassem...

journal_title：Nature structural & molecular biology

authors： Yang B,Stjepanovic G,Shen Q,Martin A,Hurley JH

更新日期：2015-06-01 00:00:00

abstract：:The asymmetric dimethylation of histone H3 arginine 2 (H3R2me2a) acts as a repressive mark that antagonizes trimethylation of H3 lysine 4. Here we report that H3R2 is also symmetrically dimethylated (H3R2me2s) by PRMT5 and PRMT7 and present in euchromatic regions. Profiling of H3-tail interactors by SILAC MS revealed ...

journal_title：Nature structural & molecular biology

authors： Migliori V,Müller J,Phalke S,Low D,Bezzi M,Mok WC,Sahu SK,Gunaratne J,Capasso P,Bassi C,Cecatiello V,De Marco A,Blackstock W,Kuznetsov V,Amati B,Mapelli M,Guccione E

更新日期：2012-01-08 00:00:00

abstract：:Ribosomes catalyze the formation of peptide bonds between aminoacyl esters of transfer RNAs within a catalytic center composed of ribosomal RNA only. Here we show that the reaction of P-site formylmethionine (fMet)-tRNA(fMet) with a modified A-site tRNA substrate, Phelac-tRNA(Phe), in which the nucleophilic amino grou...

journal_title：Nature structural & molecular biology

authors： Bieling P,Beringer M,Adio S,Rodnina MV

更新日期：2006-05-01 00:00:00

abstract：:When targeting promoter regions, small interfering RNAs (siRNAs) trigger a previously proposed pathway known as transcriptional gene silencing by promoting heterochromatin formation. Here we show that siRNAs targeting intronic or exonic sequences close to an alternative exon regulate the splicing of that exon. The eff...

journal_title：Nature structural & molecular biology

authors： Alló M,Buggiano V,Fededa JP,Petrillo E,Schor I,de la Mata M,Agirre E,Plass M,Eyras E,Elela SA,Klinck R,Chabot B,Kornblihtt AR

更新日期：2009-07-01 00:00:00

abstract：:The type III secretion system (T3SS) is a macromolecular 'injectisome' that allows bacterial pathogens to transport virulence proteins into the eukaryotic host cell. This macromolecular complex is composed of connected ring-like structures that span both bacterial membranes. The crystal structures of the periplasmic d...

journal_title：Nature structural & molecular biology

authors： Spreter T,Yip CK,Sanowar S,André I,Kimbrough TG,Vuckovic M,Pfuetzner RA,Deng W,Yu AC,Finlay BB,Baker D,Miller SI,Strynadka NC

更新日期：2009-05-01 00:00:00

abstract：:Bacterial tRNA adenosine deaminases (TadAs) catalyze the hydrolytic deamination of adenosine to inosine at the wobble position of tRNA(Arg2), a process that enables this single tRNA to recognize three different arginine codons in mRNA. In addition, inosine is also introduced at the wobble position of multiple eukaryot...

journal_title：Nature structural & molecular biology

authors： Losey HC,Ruthenburg AJ,Verdine GL

更新日期：2006-02-01 00:00:00

abstract：:Otopetrins (Otop1-Otop3) comprise one of two known eukaryotic proton-selective channel families. Otop1 is required for otoconia formation and a candidate mammalian sour taste receptor. Here we report cryo-EM structures of zebrafish Otop1 and chicken Otop3 in lipid nanodiscs. The structures reveal a dimeric architectur...

journal_title：Nature structural & molecular biology

authors： Saotome K,Teng B,Tsui CCA,Lee WH,Tu YH,Kaplan JP,Sansom MSP,Liman ER,Ward AB

更新日期：2019-06-01 00:00:00

abstract：:Pre-messenger RNAs (pre-mRNAs) maturation is initiated cotranscriptionally. It is therefore conceivable that chromatin-borne information participates in alternative splicing. Here we find that elevated levels of trimethylation of histone H3 on Lys9 (H3K9me3) are a characteristic of the alternative exons of several gen...

journal_title：Nature structural & molecular biology

authors： Saint-André V,Batsché E,Rachez C,Muchardt C

更新日期：2011-03-01 00:00:00

abstract：:The typical function of kinesins is to transport cargo along microtubules. Binding of ATP to microtubule-attached motile kinesins leads to cargo displacement. To better understand the nature of the conformational changes that lead to the power stroke that moves a kinesin's load along a microtubule, we determined the X...

journal_title：Nature structural & molecular biology

authors： Gigant B,Wang W,Dreier B,Jiang Q,Pecqueur L,Plückthun A,Wang C,Knossow M

更新日期：2013-08-01 00:00:00

abstract：:The ISWI family of ATP-dependent chromatin remodelers represses transcription by changing nucleosome positions. ISWI regulates nucleosome positioning by requiring a minimal length of extranucleosomal DNA for moving nucleosomes. ISW2 from Saccharomyces cerevisiae, a member of the ISWI family, has a conserved domain cal...

journal_title：Nature structural & molecular biology

authors： Hota SK,Bhardwaj SK,Deindl S,Lin YC,Zhuang X,Bartholomew B

更新日期：2013-02-01 00:00:00

abstract：:The tandem zinc finger (TZF) domain of the protein TIS11d binds to the class II AU-rich element (ARE) in the 3' untranslated region (3' UTR) of target mRNAs and promotes their deadenylation and degradation. The NMR structure of the TIS11d TZF domain bound to the RNA sequence 5'-UUAUUUAUU-3' comprises a pair of novel C...

journal_title：Nature structural & molecular biology

authors： Hudson BP,Martinez-Yamout MA,Dyson HJ,Wright PE

更新日期：2004-03-01 00:00:00

abstract：:The N-terminal acetylation of Sir3 is essential for heterochromatin establishment and maintenance in yeast, but its mechanism of action is unknown. The crystal structure of the N-terminally acetylated BAH domain of Saccharomyces cerevisiae Sir3 bound to the nucleosome core particle reveals that the N-terminal acetylat...

journal_title：Nature structural & molecular biology

authors： Arnaudo N,Fernández IS,McLaughlin SH,Peak-Chew SY,Rhodes D,Martino F

更新日期：2013-09-01 00:00:00

abstract：:Glucokinase (GK) is a glucose-phosphorylating enzyme that regulates insulin release and hepatic metabolism, and its loss of function is implicated in diabetes pathogenesis. GK activators (GKAs) are attractive therapeutics in diabetes; however, clinical data indicate that their benefits can be offset by hypoglycemia, o...

journal_title：Nature structural & molecular biology

authors： Szlyk B,Braun CR,Ljubicic S,Patton E,Bird GH,Osundiji MA,Matschinsky FM,Walensky LD,Danial NN

更新日期：2014-01-01 00:00:00