Structure of a purine-purine wobble base pair in the decoding center of the ribosome.

abstract：:Myotonic dystrophy is an RNA gain-of-function disease caused by expanded CUG or CCUG repeats, which sequester the RNA binding protein MBNL1. Here we describe a newly discovered function for MBNL1 as a regulator of pre-miR-1 biogenesis and find that miR-1 processing is altered in heart samples from people with myotonic...

journal_title：Nature structural & molecular biology

authors： Rau F,Freyermuth F,Fugier C,Villemin JP,Fischer MC,Jost B,Dembele D,Gourdon G,Nicole A,Duboc D,Wahbi K,Day JW,Fujimura H,Takahashi MP,Auboeuf D,Dreumont N,Furling D,Charlet-Berguerand N

更新日期：2011-06-19 00:00:00

abstract：:Argonaute (Ago) proteins mediate silencing of nucleic acid targets by small RNAs. In fission yeast, Ago1, Tas3 and Chp1 assemble into a RITS complex, which silences transcription near centromeres. Here we describe a repetitive motif within Tas3, termed the 'Argonaute hook', that is conserved from yeast to humans and b...

journal_title：Nature structural & molecular biology

authors： Till S,Lejeune E,Thermann R,Bortfeld M,Hothorn M,Enderle D,Heinrich C,Hentze MW,Ladurner AG

更新日期：2007-10-01 00:00:00

abstract：:The N-end rule pathway is a regulated proteolytic system that targets proteins containing destabilizing N-terminal residues (N-degrons) for ubiquitination and proteasomal degradation in eukaryotes. The N-degrons of type 1 substrates contain an N-terminal basic residue that is recognized by the UBR box domain of the E3...

journal_title：Nature structural & molecular biology

authors： Choi WS,Jeong BC,Joo YJ,Lee MR,Kim J,Eck MJ,Song HK

更新日期：2010-10-01 00:00:00

abstract：:The human APOBEC3G (A3G) DNA cytosine deaminase restricts and hypermutates DNA-based parasites including HIV-1. The viral infectivity factor (Vif) prevents restriction by triggering A3G degradation. Although the structure of the A3G catalytic domain is known, the structure of the N-terminal Vif-binding domain has prov...

journal_title：Nature structural & molecular biology

authors： Kouno T,Luengas EM,Shigematsu M,Shandilya SM,Zhang J,Chen L,Hara M,Schiffer CA,Harris RS,Matsuo H

更新日期：2015-06-01 00:00:00

abstract：:The CagA protein of Helicobacter pylori interacts with numerous cellular factors and is associated with increased virulence and risk of gastric carcinoma. We present here the cocrystal structure of a subdomain of CagA with the human kinase PAR1b/MARK2, revealing that a CagA peptide mimics substrates of this kinase fam...

journal_title：Nature structural & molecular biology

authors： Nesić D,Miller MC,Quinkert ZT,Stein M,Chait BT,Stebbins CE

更新日期：2010-01-01 00:00:00

abstract：:Although the two B-family human DNA polymerases, pol δ and pol ε, are responsible for the bulk of nuclear genome replication, at least 14 additional polymerases have roles in nuclear DNA repair and replication. In this issue, newly reported crystal structures of two specialized A-family polymerases, pol δ and pol ε, e...

journal_title：Nature structural & molecular biology

authors： Beard WA,Wilson SH

更新日期：2015-04-01 00:00:00

abstract：:Despite growing appreciation of the importance of long noncoding RNAs (lncRNAs) in normal physiology and disease, our knowledge of cancer-related lncRNAs remains limited. By repurposing microarray probes, we constructed expression profiles of 10,207 lncRNA genes in approximately 1,300 tumors over four different cancer...

journal_title：Nature structural & molecular biology

authors： Du Z,Fei T,Verhaak RG,Su Z,Zhang Y,Brown M,Chen Y,Liu XS

更新日期：2013-07-01 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：:Eukaryotic elongation factor-1 (eEF1) is essential for peptide-chain elongation during translation. We report that its gamma subunit (eEF1Bgamma) specifically binds, and bundles, keratin intermediate filaments. Disrupting this interaction depresses translation by approximately 20% and selectively increases 80S ribosom...

journal_title：Nature structural & molecular biology

authors： Kim S,Kellner J,Lee CH,Coulombe PA

更新日期：2007-10-01 00:00:00

abstract：:Chaperones, a group of proteins that assist the folding of other proteins, seem to work in a coordinated manner. Two major chaperone families are heat-shock protein families Hsp60 and Hsp70. Here we show for the first time the formation of a stable complex between chaperonin-containing TCP-1 (CCT) and Hsc70, two eukar...

journal_title：Nature structural & molecular biology

authors： Cuéllar J,Martín-Benito J,Scheres SH,Sousa R,Moro F,López-Viñas E,Gómez-Puertas P,Muga A,Carrascosa JL,Valpuesta JM

更新日期：2008-08-01 00:00:00

abstract：:In eukaryotes, the Cdt1-bound replicative helicase core MCM2-7 is loaded onto DNA by the ORC-Cdc6 ATPase to form a prereplicative complex (pre-RC) with an MCM2-7 double hexamer encircling DNA. Using purified components in the presence of ATP-γS, we have captured in vitro an intermediate in pre-RC assembly that contain...

journal_title：Nature structural & molecular biology

authors： Sun J,Evrin C,Samel SA,Fernández-Cid A,Riera A,Kawakami H,Stillman B,Speck C,Li H

更新日期：2013-08-01 00:00:00

abstract：:Although R loops can occur at different genomic locations, the factors that determine their formation and frequency remain unclear. Emerging evidence indicates that DNA breaks stimulate DNA-RNA hybrid formation. Here, we discuss the possibility that formation of hybrids may be an inevitable risk of DNA breaks that occ...

journal_title：Nature structural & molecular biology

authors： Aguilera A,Gómez-González B

更新日期：2017-05-04 00:00:00

abstract：:Protein synthesis by the ribosome can fail for numerous reasons including faulty mRNA, insufficient availability of charged tRNAs and genetic errors. All organisms have evolved mechanisms to recognize stalled ribosomes and initiate pathways for recycling, quality control and stress signaling. Here we review the discov...

journal_title：Nature structural & molecular biology

authors： Brandman O,Hegde RS

更新日期：2016-01-01 00:00:00

abstract：:In voltage-gated sodium, potassium and calcium channels, the functions of ion conduction and voltage sensing are performed by two distinct structural units: the pore domain and the voltage-sensing domain (VSD). In the hydrogen voltage-gated channel 1 (Hv1), the VSD, unusually, performs both functions. Hv1 was recently...

journal_title：Nature structural & molecular biology

authors： Tombola F,Ulbrich MH,Kohout SC,Isacoff EY

更新日期：2010-01-01 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：:Protein quality control depends on the tight regulation of interactions between molecular chaperones and polypeptide substrates. Substrate release from the chaperone Hsp70 is triggered by nucleotide-exchange factors (NEFs) that control folding and degradation fates via poorly understood mechanisms. We found that the a...

journal_title：Nature structural & molecular biology

authors： Gowda NKC,Kaimal JM,Kityk R,Daniel C,Liebau J,Öhman M,Mayer MP,Andréasson C

更新日期：2018-01-01 00:00:00

abstract：:The choice of codons can influence local translation kinetics during protein synthesis. Whether codon preference is linked to cotranslational regulation of polypeptide folding remains unclear. Here, we derive a revised translational efficiency scale that incorporates the competition between tRNA supply and demand. App...

journal_title：Nature structural & molecular biology

authors： Pechmann S,Frydman J

更新日期：2013-02-01 00:00:00

abstract：:Telomere capping conceals chromosome ends from exonucleases and checkpoints, but the full range of capping mechanisms is not well defined. Telomeres have the potential to form G-quadruplex (G4) DNA, although evidence for telomere G4 DNA function in vivo is limited. In budding yeast, capping requires the Cdc13 protein ...

journal_title：Nature structural & molecular biology

authors： Smith JS,Chen Q,Yatsunyk LA,Nicoludis JM,Garcia MS,Kranaster R,Balasubramanian S,Monchaud D,Teulade-Fichou MP,Abramowitz L,Schultz DC,Johnson FB

更新日期：2011-04-01 00:00:00

abstract：:Many classes of small RNA (sRNA) involved in RNA silencing are generated by double-stranded RNA (dsRNA) processing. Although principles of sRNA biogenesis have emerged, newly identified classes of sRNAs have features that suggest additional biogenesis mechanisms. Tetrahymena thermophila expresses one such class, compr...

journal_title：Nature structural & molecular biology

authors： Lee SR,Collins K

更新日期：2007-07-01 00:00:00

abstract：:Histone H3 Lys4 (H3K4) is methylated by yeast Set1-COMPASS and its mammalian homolog, the MLL complex. Human JARID1d can demethylate trimethyl-H3K4 (H3K4me3). We identified Drosophila melanogaster little imaginal discs (Lid) as the JARID1d homolog. We report that Lid knockdown using RNA interference results in a speci...

journal_title：Nature structural & molecular biology

authors： Eissenberg JC,Lee MG,Schneider J,Ilvarsonn A,Shiekhattar R,Shilatifard A

更新日期：2007-04-01 00:00:00

abstract：:Nuclear volume and the number of nuclear pore complexes (NPCs) on the nucleus almost double during interphase in dividing cells. How these events are coordinated with the cell cycle is poorly understood, particularly in mammalian cells. We report here, based on newly developed techniques for visualizing NPC formation,...

journal_title：Nature structural & molecular biology

authors： Maeshima K,Iino H,Hihara S,Funakoshi T,Watanabe A,Nishimura M,Nakatomi R,Yahata K,Imamoto F,Hashikawa T,Yokota H,Imamoto N

更新日期：2010-09-01 00:00:00

abstract：:Three recent studies converged on a specific protein-protein interface between TPP1 and telomerase as being crucial for the regulation of both telomerase recruitment and processivity in mammalian cells. An equivalent interaction appears to exist in budding yeast, making this a nearly universal means of telomerase regu...

journal_title：Nature structural & molecular biology

authors： Lue NF,Yu EY,Lei M

更新日期：2013-01-01 00:00:00

abstract：:MCL-1 is an antiapoptotic BCL-2 family protein that has emerged as a major pathogenic factor in human cancer. Like BCL-2, MCL-1 bears a surface groove whose function is to sequester the BH3 killer domains of proapoptotic BCL-2 family members, a mechanism harnessed by cancer cells to establish formidable apoptotic bloc...

journal_title：Nature structural & molecular biology

authors： Lee S,Wales TE,Escudero S,Cohen DT,Luccarelli J,Gallagher CG,Cohen NA,Huhn AJ,Bird GH,Engen JR,Walensky LD

更新日期：2016-06-01 00:00:00

abstract：:Processing of transcribed precursor ribosomal RNA (pre-rRNA) to a mature state is a conserved aspect of ribosome biogenesis in vivo. We developed an affinity-purification system to isolate and analyze in vivo-formed pre-rRNA-containing ribonucleoprotein (RNP) particles (rRNPs) from wild-type E. coli. We observed that ...

journal_title：Nature structural & molecular biology

authors： Gupta N,Culver GM

更新日期：2014-10-01 00:00:00

abstract：:Messenger RNAs produced by splicing are translated more efficiently than those produced from similar intronless precursor mRNAs (pre-mRNAs). The exon-junction complex (EJC) probably mediates this enhancement; however, the specific link between the EJC and the translation machinery has not been identified. The EJC prot...

journal_title：Nature structural & molecular biology

authors： Diem MD,Chan CC,Younis I,Dreyfuss G

更新日期：2007-12-01 00:00:00

abstract：:The monoclonal antibody 13H11 shares part of its epitope in the HIV-1 gp41 membrane-proximal external region (MPER) with the rare, broadly neutralizing human antibody 2F5. Although 13H11 partially cross-blocked 2F5 binding, 13H11 is non-neutralizing and does not block 2F5 neutralization. We show that unlike 2F5, 13H11...

journal_title：Nature structural & molecular biology

authors： Nicely NI,Dennison SM,Spicer L,Scearce RM,Kelsoe G,Ueda Y,Chen H,Liao HX,Alam SM,Haynes BF

更新日期：2010-12-01 00:00:00

abstract：:The major structural components of HIV-1 are encoded as a single polyprotein, Gag, which is sufficient for virus particle assembly. Initially, Gag forms an approximately spherical shell underlying the membrane of the immature particle. After proteolytic maturation of Gag, the capsid (CA) domain of Gag reforms into a c...

journal_title：Nature structural & molecular biology

authors： Briggs JA,Simon MN,Gross I,Kräusslich HG,Fuller SD,Vogt VM,Johnson MC

更新日期：2004-07-01 00:00:00

abstract：:We have isolated a soluble cytochrome from Shewanella oneidensis that contains eight covalently attached heme groups and determined its crystal structure. One of these hemes exhibits novel ligation of the iron atom by the epsilon-amino group of a lysine residue, despite its attachment via a typical CXXCH motif. This h...

journal_title：Nature structural & molecular biology

authors： Mowat CG,Rothery E,Miles CS,McIver L,Doherty MK,Drewette K,Taylor P,Walkinshaw MD,Chapman SK,Reid GA

更新日期：2004-10-01 00:00:00

abstract：:Coupling between transcription and RNA processing is a key gene regulatory mechanism. Here we use chromatin immunoprecipitation to detect transcription-dependent accumulation of the precursor mRNA (pre-mRNA) splicing factors hnRNP A1, U2AF65 and U1 and U5 snRNPs on the intron-containing human FOS gene. These factors w...

journal_title：Nature structural & molecular biology

authors： Listerman I,Sapra AK,Neugebauer KM

更新日期：2006-09-01 00:00:00

abstract：:Bacteriophages express proteins that inactivate the CRISPR-Cas bacterial immune system. Here we report the crystal structure of the anti-CRISPR protein AcrF3 in complex with Pseudomonas aeruginosa Cas3 (PaCas3). AcrF3 forms a homodimer that locks PaCas3 in an ADP-bound form, blocks the entrance of the DNA-binding tunn...

journal_title：Nature structural & molecular biology

authors： Wang X,Yao D,Xu JG,Li AR,Xu J,Fu P,Zhou Y,Zhu Y

更新日期：2016-09-01 00:00:00