Recognition of trimethylated histone H3 lysine 4 facilitates the recruitment of transcription postinitiation factors and pre-mRNA splicing.

abstract：:Argonaute proteins associate with small RNAs that guide mRNA degradation, translational repression, or a combination of both. The human Argonaute family has eight members, four of which (Ago1 through Ago4) are closely related and coexpressed in many cell types. To understand the biological function of the different Ag...

journal_title：Molecular cell

authors： Meister G,Landthaler M,Patkaniowska A,Dorsett Y,Teng G,Tuschl T

更新日期：2004-07-23 00:00:00

abstract：:The transcriptional activity of NF-kappa B is stimulated upon phosphorylation of its p65 subunit on serine 276 by protein kinase A (PKA). The transcriptional coactivator CPB/p300 associates with NF-kappa B p65 through two sites, an N-terminal domain that interacts with the C-terminal region of unphosphorylated p65, an...

journal_title：Molecular cell

authors： Zhong H,Voll RE,Ghosh S

更新日期：1998-04-01 00:00:00

abstract：:Diaphanous-related formins (DRFs) regulate dynamics of unbranched actin filaments during cell contraction and cytokinesis. DRFs are autoinhibited through intramolecular binding of a Diaphanous autoinhibitory domain (DAD) to a conserved N-terminal regulatory element. Autoinhibition is relieved through binding of the GT...

journal_title：Molecular cell

authors： Otomo T,Otomo C,Tomchick DR,Machius M,Rosen MK

更新日期：2005-04-29 00:00:00

abstract：:The recruitment of the TATA box-binding protein (TBP) to promoters in vivo is often rate limiting in gene expression. We present evidence that TBP negatively autoregulates its accessibility to promoter DNA in yeast through dimerization. The crystal structure of TBP dimers was used to design point mutations in the dime...

journal_title：Molecular cell

authors： Jackson-Fisher AJ,Chitikila C,Mitra M,Pugh BF

更新日期：1999-06-01 00:00:00

abstract：:Transcription is a source of genetic instability that can notably result from the formation of genotoxic DNA:RNA hybrids, or R-loops, between the nascent mRNA and its template. Here we report an unexpected function for introns in counteracting R-loop accumulation in eukaryotic genomes. Deletion of endogenous introns i...

journal_title：Molecular cell

authors： Bonnet A,Grosso AR,Elkaoutari A,Coleno E,Presle A,Sridhara SC,Janbon G,Géli V,de Almeida SF,Palancade B

更新日期：2017-08-17 00:00:00

abstract：:Interference with nucleocytoplasmic transport is a strategy employed by certain viruses to compromise host cellular function. While it has been shown that the matrix (M) protein of the vesicular stomatitis virus (VSV) inhibits nuclear export of host cell mRNAs, the underlying mechanism has not been fully established. ...

journal_title：Molecular cell

authors： Faria PA,Chakraborty P,Levay A,Barber GN,Ezelle HJ,Enninga J,Arana C,van Deursen J,Fontoura BM

更新日期：2005-01-07 00:00:00

abstract：:Floral transition in plants is regulated by an integrated network of flowering genetic pathways. We show that an Arabidopsis PIN1-type parvulin 1, Pin1At, controls floral transition by accelerating cis/trans isomerization of the phosphorylated Ser/Thr-Pro motifs in two MADS-domain transcription factors, SUPPRESSOR OF ...

journal_title：Molecular cell

authors： Wang Y,Liu C,Yang D,Yu H,Liou YC

更新日期：2010-01-15 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：:Ubiquitin-mediated proteolysis regulates the activity of diverse receptor systems. Here, we identify Smurf2, a C2-WW-HECT domain ubiquitin ligase and show that Smurf2 associates constitutively with Smad7. Smurf2 is nuclear, but binding to Smad7 induces export and recruitment to the activated TGF beta receptor, where i...

journal_title：Molecular cell

authors： Kavsak P,Rasmussen RK,Causing CG,Bonni S,Zhu H,Thomsen GH,Wrana JL

更新日期：2000-12-01 00:00:00

abstract：:A paradigm in transcriptional regulation is that graded increases in transcription factor (TF) concentration are translated into on/off transcriptional responses by cooperative TF binding to adjacent sites. Digital transcriptional responses underlie the definition of anatomical boundaries during development. Here we s...

journal_title：Molecular cell

authors： Giorgetti L,Siggers T,Tiana G,Caprara G,Notarbartolo S,Corona T,Pasparakis M,Milani P,Bulyk ML,Natoli G

更新日期：2010-02-12 00:00:00

abstract：:Vascular endothelial (VE)-cadherin homophilic adhesion controls endothelial barrier permeability through assembly of adherens junctions (AJs). We observed that loss of VE-cadherin-mediated adhesion induced the activation of Src and phospholipase C (PLC)γ2, which mediated Ca(2+) release from endoplasmic reticulum (ER) ...

journal_title：Molecular cell

authors： Komarova YA,Huang F,Geyer M,Daneshjou N,Garcia A,Idalino L,Kreutz B,Mehta D,Malik AB

更新日期：2012-12-28 00:00:00

abstract：:RNA editing in the mitochondria of kinetoplastids involves the addition and deletion of uridines at specific sites as directed by guide RNAs (gRNAs). Ample evidence shows that ribonucleoprotein (RNP) complexes carry out this posttranscriptional processing. One component of RNA editing complexes is REAP-1, a protein of...

journal_title：Molecular cell

authors： Madison-Antenucci S,Hajduk SL

更新日期：2001-04-01 00:00:00

abstract：:Canonical Wnt signaling is thought to regulate cell behavior mainly by inducing β-catenin-dependent transcription of target genes. In proliferating cells Wnt signaling peaks in the G2/M phase of the cell cycle, but the significance of this "mitotic Wnt signaling" is unclear. Here we introduce Wnt-dependent stabilizati...

journal_title：Molecular cell

authors： Acebron SP,Karaulanov E,Berger BS,Huang YL,Niehrs C

更新日期：2014-05-22 00:00:00

abstract：:The L. monocytogenes protein lnlB activates phosphoinositide 3-kinase and induces phagocytosis in several mammalian cell types. The 1.86 A resolution X-ray crystal structure of the leucine-rich repeat domain of lnlB that is both necessary and sufficient to induce phagocytosis is presented here. The structure supports ...

journal_title：Molecular cell

authors： Marino M,Braun L,Cossart P,Ghosh P

更新日期：1999-12-01 00:00:00

abstract：:When faced with proteotoxic stress, cells mount adaptive responses to eliminate aberrant proteins. Adaptive responses increase the expression of protein folding and degradation factors to enhance the cellular quality control machinery. However, it is unclear whether and how this augmented machinery acquires new activi...

journal_title：Molecular cell

authors： Szoradi T,Schaeff K,Garcia-Rivera EM,Itzhak DN,Schmidt RM,Bircham PW,Leiss K,Diaz-Miyar J,Chen VK,Muzzey D,Borner GHH,Schuck S

更新日期：2018-06-21 00:00:00

abstract：:Cells constantly adjust their metabolism in response to environmental conditions, yet major mechanisms underlying survival remain poorly understood. We discover a posttranscriptional mechanism that integrates starvation response with GTP homeostasis to allow survival, enacted by the nucleotide (p)ppGpp, a key player i...

journal_title：Molecular cell

authors： Kriel A,Bittner AN,Kim SH,Liu K,Tehranchi AK,Zou WY,Rendon S,Chen R,Tu BP,Wang JD

更新日期：2012-10-26 00:00:00

abstract：:In the death receptor induced apoptotic pathway, caspase-8 autocatalytically cleaves itself at specific cleavage sites. To better understand the regulatory mechanisms behind caspase-8 activation, we compared active wild-type caspase-8 (wtC8) and an uncleavable form of procaspase-8 (uncleavable C8). We demonstrate that...

journal_title：Molecular cell

authors： Donepudi M,Mac Sweeney A,Briand C,Grütter MG

更新日期：2003-02-01 00:00:00

abstract：:Despite the relevance of Argonaute proteins in RNA silencing, little is known about the structural steps of small RNA loading to form RNA-induced silencing complexes (RISCs). We report the 1.9 Å crystal structure of human Argonaute4 with guide RNA. Comparison with the previously determined apo structure of Neurospora ...

journal_title：Molecular cell

authors： Park MS,Araya-Secchi R,Brackbill JA,Phan HD,Kehling AC,Abd El-Wahab EW,Dayeh DM,Sotomayor M,Nakanishi K

更新日期：2019-08-22 00:00:00

abstract：:AAA+ proteins (ATPases associated with various cellular activities) are oligomeric ATPases that use ATP hydrolysis to remodel their substrates. By similarity with GTPases, a dynamic organization of the nucleotide-binding pockets between ATPase protomers is proposed to regulate functionality. Using the transcription ac...

journal_title：Molecular cell

authors： Joly N,Zhang N,Buck M

更新日期：2012-08-10 00:00:00

abstract：:Bicoid (BCD), the anterior determinant of Drosophila, controls embryonic gene expression by transcriptional activation and translational repression. Both functions require the homeodomain (HD), which recognizes DNA motifs at target gene enhancers and a specific sequence interval in the 3' untranslated region of caudal...

journal_title：Molecular cell

authors： Niessing D,Driever W,Sprenger F,Taubert H,Jäckle H,Rivera-Pomar R

更新日期：2000-02-01 00:00:00

abstract：:The tumor suppressor p53 transcriptionally activates target genes to suppress cellular proliferation during stress. p53 has also been implicated in the repression of the proto-oncogene Myc, but the mechanism has remained unclear. Here, we identify Pvt1b, a p53-dependent isoform of the long noncoding RNA (lncRNA) Pvt1,...

journal_title：Molecular cell

authors： Olivero CE,Martínez-Terroba E,Zimmer J,Liao C,Tesfaye E,Hooshdaran N,Schofield JA,Bendor J,Fang D,Simon MD,Zamudio JR,Dimitrova N

更新日期：2020-02-20 00:00:00

abstract：:Siz1 is a founding member of the Siz/PIAS RING family of SUMO E3 ligases. The X-ray structure of an active Siz1 ligase revealed an elongated tripartite architecture comprised of an N-terminal PINIT domain, a central zinc-containing RING-like SP-RING domain, and a C-terminal domain we term the SP-CTD. Structure-based m...

journal_title：Molecular cell

authors： Yunus AA,Lima CD

更新日期：2009-09-11 00:00:00

abstract：:mRNAs form ribonucleoprotein complexes (mRNPs) by association with proteins that are crucial for mRNA metabolism. While the mRNP proteome has been well characterized, little is known about mRNP organization. Using a single-molecule approach, we show that mRNA conformation changes depending on its cellular localization...

journal_title：Molecular cell

authors： Adivarahan S,Livingston N,Nicholson B,Rahman S,Wu B,Rissland OS,Zenklusen D

更新日期：2018-11-15 00:00:00

abstract：:S-adenosylmethionine (SAM) is the methyl-donor substrate for DNA and histone methyltransferases that regulate epigenetic states and subsequent gene expression. This metabolism-epigenome link sensitizes chromatin methylation to altered SAM abundance, yet the mechanisms that allow organisms to adapt and protect epigenet...

journal_title：Molecular cell

authors： Haws SA,Yu D,Ye C,Wille CK,Nguyen LC,Krautkramer KA,Tomasiewicz JL,Yang SE,Miller BR,Liu WH,Igarashi K,Sridharan R,Tu BP,Cryns VL,Lamming DW,Denu JM

更新日期：2020-04-16 00:00:00

abstract：:MRE11 within the MRE11-RAD50-NBS1 (MRN) complex acts in DNA double-strand break repair (DSBR), detection, and signaling; yet, how its endo- and exonuclease activities regulate DSBR by nonhomologous end-joining (NHEJ) versus homologous recombination (HR) remains enigmatic. Here, we employed structure-based design with ...

journal_title：Molecular cell

authors： Shibata A,Moiani D,Arvai AS,Perry J,Harding SM,Genois MM,Maity R,van Rossum-Fikkert S,Kertokalio A,Romoli F,Ismail A,Ismalaj E,Petricci E,Neale MJ,Bristow RG,Masson JY,Wyman C,Jeggo PA,Tainer JA

更新日期：2014-01-09 00:00:00

abstract：:The transition from transcription initiation to elongation at promoters of primary response genes (PRGs) in metazoan cells is controlled by inducible transcription factors, which utilize P-TEFb to phosphorylate RNA polymerase II (Pol II) in response to stimuli. Prior to stimulation, a fraction of P-TEFb is recruited t...

journal_title：Molecular cell

authors： McNamara RP,Reeder JE,McMillan EA,Bacon CW,McCann JL,D'Orso I

更新日期：2016-01-07 00:00:00

abstract：:Nuclear RNA interference (RNAi) pathways work together with histone modifications to regulate gene expression and enact an adaptive response to transposable RNA elements. In the germline, nuclear RNAi can lead to trans-generational epigenetic inheritance (TEI) of gene silencing. We identified and characterized a famil...

journal_title：Molecular cell

authors： Lewis A,Berkyurek AC,Greiner A,Sawh AN,Vashisht A,Merrett S,Flamand MN,Wohlschlegel J,Sarov M,Miska EA,Duchaine TF

更新日期：2020-06-04 00:00:00

abstract：:The pre-mRNA 5' splice site is recognized by the ACAGA box of U6 spliceosomal RNA prior to catalysis of splicing. We previously identified a mutant U4 spliceosomal RNA, U4-cs1, that masks the ACAGA box in the U4/U6 complex, thus conferring a cold-sensitive splicing phenotype in vivo. Here, we show that U4-cs1 blocks i...

journal_title：Molecular cell

authors： Kuhn AN,Li Z,Brow DA

更新日期：1999-01-01 00:00:00

abstract：:X chromosome inactivation (XCI) depends on a noncoding sense-antisense transcript pair, Xist and Tsix. At the onset of XCI, Xist RNA accumulates on one of two Xs, coating and silencing the chromosome in cis. The molecular basis for monoallelic Xist upregulation is not known, though evidence predominantly supports a po...

journal_title：Molecular cell

authors： Sun BK,Deaton AM,Lee JT

更新日期：2006-03-03 00:00:00

abstract：:In a recent issue of Molecular Cell, Büttner et al. (2007) described dual roles for the conserved mitochondrial protein endonuclease G in budding yeast apoptosis and proliferation that illuminate some of the contradictory and confusing findings regarding this protein in mammalian cells. ...

journal_title：Molecular cell

authors： Burhans WC,Weinberger M

更新日期：2007-02-09 00:00:00