Y14 and hUpf3b form an NMD-activating complex.

abstract：:Cotranscriptional loading of proteins onto nascent transcripts contributes to the formation of messenger ribonucleoprotein particles (mRNPs) competent for nuclear export. The transcription machinery is believed to play a pivotal role in mRNP assembly, which is at least partially linked to the function of the THO/TREX ...

journal_title：Molecular cell

authors： Jensen TH,Boulay J,Olesen JR,Colin J,Weyler M,Libri D

更新日期：2004-10-22 00:00:00

abstract：:The duplication of eukaryotic genomes involves the replication of DNA from multiple origins of replication. In S phase, two sister replisomes assemble at each active origin, and they replicate DNA in opposite directions. Little is known about the functional relationship between sister replisomes. Some data imply that ...

journal_title：Molecular cell

authors： Yardimci H,Loveland AB,Habuchi S,van Oijen AM,Walter JC

更新日期：2010-12-10 00:00:00

abstract：:Long DNA palindromes are sites of genome instability (deletions, amplification, and translocations) in both prokaryotic and eukaryotic cells. In Escherichia coli, genetic evidence has suggested that they are sites of DNA cleavage by the SbcCD complex that can be repaired by homologous recombination. Here we obtain in ...

journal_title：Molecular cell

authors： Eykelenboom JK,Blackwood JK,Okely E,Leach DR

更新日期：2008-03-14 00:00:00

abstract：:Nup98 is a component of the nuclear pore that plays its primary role in the export of RNAs. Nup98 is expressed in two forms, derived from alternate mRNA splicing. Both forms are processed into two peptides through autoproteolysis mediated by the C-terminal domain of hNup98. The three-dimensional structure of the C-ter...

journal_title：Molecular cell

authors： Hodel AE,Hodel MR,Griffis ER,Hennig KA,Ratner GA,Xu S,Powers MA

更新日期：2002-08-01 00:00:00

abstract：:BRCA1 functions at two distinct steps during homologous recombination (HR). Initially, it promotes DNA end resection, and subsequently it recruits the PALB2 and BRCA2 mediator complex, which stabilizes RAD51-DNA nucleoprotein filaments. Loss of 53BP1 rescues the HR defect in BRCA1-deficient cells by increasing resecti...

journal_title：Molecular cell

authors： Zong D,Adam S,Wang Y,Sasanuma H,Callén E,Murga M,Day A,Kruhlak MJ,Wong N,Munro M,Ray Chaudhuri A,Karim B,Xia B,Takeda S,Johnson N,Durocher D,Nussenzweig A

更新日期：2019-03-21 00:00:00

abstract：:Deep orange and carnation are two of the classic eye color genes in Drosophila. Here, we demonstrate that Deep orange is part of a protein complex that localizes to endosomal compartments. A second component of this complex is Carnation, a homolog of Sec1p-like regulators of membrane fusion. Because complete loss of d...

journal_title：Molecular cell

authors： Sevrioukov EA,He JP,Moghrabi N,Sunio A,Krämer H

更新日期：1999-10-01 00:00:00

abstract：:Nhp6A and Nhp6B are HMG1-like proteins required for the growth of S. cerevisiae at elevated temperatures. We show that the conditional lethality of an nhp6 strain results from defective transcription of SNR6 (U6 snRNA) by RNA polymerase III. Overexpression of U6 snRNA or Brf1, a limiting component of TFIIIB, and an ac...

journal_title：Molecular cell

authors： Kruppa M,Moir RD,Kolodrubetz D,Willis IM

更新日期：2001-02-01 00:00:00

abstract：:Homologous recombination (HR) is crucial for genetic exchange and accurate repair of DNA double-strand breaks and is pivotal for genome integrity. HR uses homologous sequences for repair, but how homology search, the exploration of the genome for homologous DNA sequences, is conducted in the nucleus remains poorly und...

journal_title：Molecular cell

authors： Renkawitz J,Lademann CA,Kalocsay M,Jentsch S

更新日期：2013-04-25 00:00:00

abstract：:Polycomb proteins are well-known epigenetic repressors with unexplained roles in chromatin folding. In this issue of Molecular Cell, Kundu et al. (2017) investigate the structures of PRC1-mediated domains in stem cells and probe their changes upon differentiation and in PRC knockouts. ...

journal_title：Molecular cell

authors： Torlai Triglia E,Rito T,Pombo A

更新日期：2017-02-02 00:00:00

abstract：:BIK protein is an initiator of mitochondrial apoptosis, and BIK expression is induced by proapoptotic signals, including DNA damage. Here, we demonstrate that 3' end processing and expression of BIK mRNA are controlled by the nuclear PI4,5P(2)-regulated poly(A) polymerase Star-PAP downstream of DNA damage. Nuclear PKC...

journal_title：Molecular cell

authors： Li W,Laishram RS,Ji Z,Barlow CA,Tian B,Anderson RA

更新日期：2012-01-13 00:00:00

abstract：:Immune cell function depends on specific metabolic programs dictated by mitochondria, including nutrient oxidation, macromolecule synthesis, and post-translational modifications. Mitochondrial adaptations have been linked to acute and chronic inflammation, but the metabolic cues and precise mechanisms remain unclear. ...

journal_title：Molecular cell

authors： Chi Z,Chen S,Xu T,Zhen W,Yu W,Jiang D,Guo X,Wang Z,Zhang K,Li M,Zhang J,Fang H,Yang D,Ye Q,Yang X,Lin H,Yang F,Zhang X,Wang D

更新日期：2020-10-01 00:00:00

abstract：:Polycomb repressive complex 2 (PRC2) places H3K27me3 at developmental genes and is causally implicated in keeping bivalent genes silent. It is unclear if that silence requires minimum H3K27me3 levels and how the mark transmits faithfully across mammalian somatic cell generations. Mouse intestinal cells lacking EZH2 me...

journal_title：Molecular cell

authors： Jadhav U,Manieri E,Nalapareddy K,Madha S,Chakrabarti S,Wucherpfennig K,Barefoot M,Shivdasani RA

更新日期：2020-04-02 00:00:00

abstract：:Activation of NF-kappaB is achieved by ubiquitination and proteasome-mediated degradation of IkappaBalpha. We have detected modified IkappaBalpha, conjugated to the small ubiquitin-like protein SUMO-1, which is resistant to signal-induced degradation. In the presence of an E1 SUMO-1-activating enzyme, Ubch9 conjugated...

journal_title：Molecular cell

authors： Desterro JM,Rodriguez MS,Hay RT

更新日期：1998-08-01 00:00:00

abstract：:In this issue of Molecular Cell, detail molecular events that trigger apoptosis following growth factor withdrawal, linking irreversible mitochondrial permeabilization to activation of GSK-3 and subsequent phosphorylation, ubiquitinylation, and degradation of the antiapoptotic BCL-2 family member MCL-1. ...

journal_title：Molecular cell

authors： Letai A

更新日期：2006-03-17 00:00:00

abstract：:The presence of microbial or self DNA in the cytoplasm of mammalian cells is a danger signal detected by the DNA sensor cyclic-GMP-AMP (cGAMP) synthase (cGAS), which catalyzes the production of cGAMP that in turn serves as a second messenger to activate innate immune responses. Here we show that endogenous cGAMP in ma...

journal_title：Molecular cell

authors： Zhang X,Shi H,Wu J,Zhang X,Sun L,Chen C,Chen ZJ

更新日期：2013-07-25 00:00:00

abstract：:SNAP proteins play an essential role in membrane trafficking in eukaryotic cells. They activate and recycle SNARE proteins by serving as adaptors between SNAREs and the cytosolic chaperone NSF. We have determined the crystal structure of Sec17, the yeast homolog of alpha-SNAP, to 2.9 A resolution. Sec17 is composed of...

journal_title：Molecular cell

authors： Rice LM,Brunger AT

更新日期：1999-07-01 00:00:00

abstract：:The Mre11/Rad50/Nbs1 complex initiates double-strand break repair by homologous recombination (HR). Loss of Mre11 or its nuclease activity in mouse cells is known to cause genome aberrations and cellular senescence, although the molecular basis for this phenotype is not clear. To identify the origin of these defects, ...

journal_title：Molecular cell

authors： Hoa NN,Shimizu T,Zhou ZW,Wang ZQ,Deshpande RA,Paull TT,Akter S,Tsuda M,Furuta R,Tsutsui K,Takeda S,Sasanuma H

更新日期：2016-11-03 00:00:00

abstract：:Mutations within BRCA1 predispose carriers to a high risk of breast and ovarian cancers. BRCA1 functions to maintain genomic stability through the assembly of multiple protein complexes involved in DNA repair, cell-cycle arrest, and transcriptional regulation. Here, we report the identification of a DNA damage-induced...

journal_title：Molecular cell

authors： Savage KI,Gorski JJ,Barros EM,Irwin GW,Manti L,Powell AJ,Pellagatti A,Lukashchuk N,McCance DJ,McCluggage WG,Schettino G,Salto-Tellez M,Boultwood J,Richard DJ,McDade SS,Harkin DP

更新日期：2014-05-08 00:00:00

abstract：:Centromeres are specialized chromatin domains specified by the centromere-specific CENP-A nucleosome. The stable inheritance of vertebrate centromeres is an epigenetic process requiring deposition of new CENP-A nucleosomes by HJURP. We show HJURP is recruited to centromeres through a direct interaction between the HJU...

journal_title：Molecular cell

authors： Nardi IK,Zasadzińska E,Stellfox ME,Knippler CM,Foltz DR

更新日期：2016-03-03 00:00:00

abstract：:Although DNA looping between the initiator binding sites (iterons) of the replication origin (ori) of a plasmid and the iterons located in a cis-acting control sequence called inc has been postulated to promote negative control of plasmid DNA replication, not only was definitive evidence for such looping lacking, but ...

journal_title：Molecular cell

authors： Zzaman S,Bastia D

更新日期：2005-12-22 00:00:00

abstract：:Regulatory sequences or erroneous incorporations during DNA transcription cause RNA polymerase backtracking and inactivation in all kingdoms of life. Reactivation requires RNA transcript cleavage. Essential transcription factors (GreA and GreB, or TFIIS) accelerate this reaction. We report four cryo-EM reconstructions...

journal_title：Molecular cell

authors： Abdelkareem M,Saint-André C,Takacs M,Papai G,Crucifix C,Guo X,Ortiz J,Weixlbaumer A

更新日期：2019-07-25 00:00:00

abstract：:Rho factor in bacteria terminates transcription by using energy from ATP hydrolysis to forcefully dissociate the transcripts from RNA polymerase. used data from presteady-state ATPase kinetics to support a rational mechanistic model for Rho's action on RNA. ...

journal_title：Molecular cell

authors： Richardson JP

更新日期：2006-06-23 00:00:00

abstract：:The Wnt3a/β-catenin and Activin/SMAD2,3 signaling pathways synergize to induce endodermal differentiation of human embryonic stem cells; however, the underlying mechanism is not well understood. Using ChIP-seq and GRO-seq analyses, we show here that Wnt3a-induced β-catenin:LEF-1 enhancers recruit cohesin to direct enh...

journal_title：Molecular cell

authors： Estarás C,Benner C,Jones KA

更新日期：2015-06-04 00:00:00

abstract：:There are few tools available for dissecting and elucidating the functions of DNA satellites and other nongenic DNA. To address this, we have explored the experimental potential of DNA sequence-specific drugs containing pyrrole and imidazole amino acids (polyamides). Compounds were synthesized that target different Dr...

journal_title：Molecular cell

authors： Janssen S,Durussel T,Laemmli UK

更新日期：2000-11-01 00:00:00

abstract：:Checkpoint proteins respond to DNA damage by halting the cell cycle until the damage is repaired. In this issue of Molecular Cell, Furuya et al. (2010) provide evidence that checkpoint proteins need to be removed from sites of damage in order to properly repair it. ...

journal_title：Molecular cell

authors： Paek AL,Weinert T

更新日期：2010-11-24 00:00:00

abstract：:We have analyzed two residues in the helicase domain of the E1 initiator protein. These residues are part of a highly conserved structural motif, the beta-hairpin, which is present in the helicase domain of all papovavirus initiator proteins. These proteins are unique in their ability to transition from local template...

journal_title：Molecular cell

authors： Liu X,Schuck S,Stenlund A

更新日期：2007-03-23 00:00:00

abstract：:Faithful copying of the genome is essential for life. In eukaryotes, a single archaeo-eukaryotic primase (AEP), DNA primase, is required for the initiation and progression of DNA replication. Here we have identified additional eukaryotic AEP-like proteins with DNA-dependent primase and/or polymerase activity. Uniquely...

journal_title：Molecular cell

authors： Rudd SG,Glover L,Jozwiakowski SK,Horn D,Doherty AJ

更新日期：2013-11-21 00:00:00

abstract：:The crystal structure of a heterodimer between the ligand-binding domains (LBDs) of the human RARalpha bound to a selective antagonist and the constitutively active mouse RXRalphaF318A mutant shows that, pushed by a bulky extension of the ligand, RARalpha helix H12 adopts an antagonist position. The unexpected presenc...

journal_title：Molecular cell

authors： Bourguet W,Vivat V,Wurtz JM,Chambon P,Gronemeyer H,Moras D

更新日期：2000-02-01 00:00:00

abstract：:Protein function originates from a cooperation of structural rigidity, dynamics at different timescales, and allostery. However, how these three pillars of protein function are integrated is still only poorly understood. Here we show how these pillars are connected in Protein Tyrosine Phosphatase 1B (PTP1B), a drug ta...

journal_title：Molecular cell

authors： Choy MS,Li Y,Machado LESF,Kunze MBA,Connors CR,Wei X,Lindorff-Larsen K,Page R,Peti W

更新日期：2017-02-16 00:00:00

abstract：:In a recent issue of Molecular Cell, Pidoux et al. (2009) and Williams et al. (2009) identify S. pombe Scm3 as the proximate factor in the Cnp1/CENP-A deposition pathway, providing a direct connection to centromere-localized Mis16-Mis18. ...

journal_title：Molecular cell

authors： Baker RE

更新日期：2009-02-27 00:00:00