Accessibility of nucleosomal DNA to V(D)J cleavage is modulated by RSS positioning and HMG1.

abstract：:Angiogenin is a stress-activated ribonuclease that cleaves tRNA within anticodon loops to produce tRNA-derived stress-induced fragments (tiRNAs). Transfection of natural or synthetic tiRNAs inhibits protein synthesis and triggers the phospho-eIF2α-independent assembly of stress granules (SGs), essential components of ...

journal_title：Molecular cell

authors： Ivanov P,Emara MM,Villen J,Gygi SP,Anderson P

更新日期：2011-08-19 00:00:00

abstract：:Transcriptional pausing by RNA polymerase (RNAP) plays an essential role in gene regulation. Pausing is modified by various elongation factors, including prokaryotic NusA, but the mechanisms underlying pausing and NusA function remain unclear. Alternative models for pausing invoke blockade events that precede transloc...

journal_title：Molecular cell

authors： Zhou J,Ha KS,La Porta A,Landick R,Block SM

更新日期：2011-11-18 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：:Posttranslational histone modifications play important roles in transcription and other chromatin-based processes. Compared to acetylation, methylation, and phosphorylation, very little is known about the function of histone ubiquitylation. Here, we report the purification and functional characterization of a histone ...

journal_title：Molecular cell

authors： Wang H,Zhai L,Xu J,Joo HY,Jackson S,Erdjument-Bromage H,Tempst P,Xiong Y,Zhang Y

更新日期：2006-05-05 00:00:00

abstract：:Never-in-mitosis A-related kinase 1 (Nek1) has established roles in apoptosis and cell cycle regulation. We show that human Nek1 regulates homologous recombination (HR) by phosphorylating Rad54 at Ser572 in late G2 phase. Nek1 deficiency as well as expression of unphosphorylatable Rad54 (Rad54-S572A) cause unresolved ...

journal_title：Molecular cell

authors： Spies J,Waizenegger A,Barton O,Sürder M,Wright WD,Heyer WD,Löbrich M

更新日期：2016-06-16 00:00:00

abstract：:Alternative mRNA splicing of the fibronectin EDI exon is controlled by a purine-rich exonic splicing enhancer (ESE), postulated as a binding site for SR proteins. By using a transient expression alternative splicing assay combined with promoter swapping, we have demonstrated that the promoter can also control EDI spli...

journal_title：Molecular cell

authors： Cramer P,Cáceres JF,Cazalla D,Kadener S,Muro AF,Baralle FE,Kornblihtt AR

更新日期：1999-08-01 00:00:00

abstract：:Heterochromatin formation is generally thought to result in transcriptional repression of target loci. However, RNAi-mediated heterochromatin assembly requires RNA polymerase II (Pol II) transcription. The mechanism facilitating Pol II accessibility to heterochromatin is unknown. We show that the fission yeast Epe1, a...

journal_title：Molecular cell

authors： Zofall M,Grewal SI

更新日期：2006-06-09 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：:Nucleosomes are surprisingly dynamic structures in vivo, showing transcription-independent exchange of histones H2A-H2B genome-wide and exchange of H3-H4 mainly within the promoters of transcribed genes. In addition, nucleosomes are disrupted in front of and reassembled behind the elongating RNA polymerase. Here we sh...

journal_title：Molecular cell

authors： Jamai A,Puglisi A,Strubin M

更新日期：2009-08-14 00:00:00

abstract：:The methylcytosine oxidase TET proteins play important roles in DNA demethylation and development. However, it remains elusive how exactly they target substrates and execute oxidation. Interestingly, we found that, in mice, the full-length TET1 isoform (TET1e) is restricted to early embryos, embryonic stem cells (ESCs...

journal_title：Molecular cell

authors： Zhang W,Xia W,Wang Q,Towers AJ,Chen J,Gao R,Zhang Y,Yen CA,Lee AY,Li Y,Zhou C,Liu K,Zhang J,Gu TP,Chen X,Chang Z,Leung D,Gao S,Jiang YH,Xie W

更新日期：2016-12-15 00:00:00

abstract：:Initiation sites for DNA synthesis in the chromosomal autonomously replicating sequence (ARS)1 of Saccharomyces cerevisiae were detected at the nucleotide level. The transition from discontinuous to continuous synthesis defines the origin of bidirectional replication (OBR), which mapped adjacent to the origin recognit...

journal_title：Molecular cell

authors： Bielinsky AK,Gerbi SA

更新日期：1999-04-01 00:00:00

abstract：:Prenylated Rab proteins exist in the cytosol as soluble, high-affinity complexes with GDI that need to be disrupted for membrane attachment and targeting of Rab proteins. The Legionella pneumophila protein DrrA displaces GDI from Rab1:GDI complexes, incorporating Rab1 into Legionella-containing vacuoles and activating...

journal_title：Molecular cell

authors： Schoebel S,Oesterlin LK,Blankenfeldt W,Goody RS,Itzen A

更新日期：2009-12-25 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：:Metabolic reprogramming is a characteristic of cancer cells. Three studies published in this month's Molecular Cell provide novel insights into the role of mitochondrial pyruvate in tumor metabolism and describe how targeting pyruvate transport and metabolism may afford therapeutic benefit. ...

journal_title：Molecular cell

authors： Szlosarek PW,Lee S,Pollard PJ

更新日期：2014-11-06 00:00:00

abstract：:It has been suspected that cell-cycle progression might be functionally coupled with RNA processing. However, little is known about the role of the precise splicing control in cell-cycle progression. Here, we report that SON, a large Ser/Arg (SR)-related protein, is a splicing cofactor contributing to efficient splici...

journal_title：Molecular cell

authors： Ahn EY,DeKelver RC,Lo MC,Nguyen TA,Matsuura S,Boyapati A,Pandit S,Fu XD,Zhang DE

更新日期：2011-04-22 00:00:00

abstract：:The response to endoplasmic reticulum (ER) stress relies on activation of unfolded protein response (UPR) sensors, and the outcome of the UPR depends on the duration and strength of signal. Here, we demonstrate a mechanism that attenuates the activity of the UPR sensor inositol-requiring enzyme 1α (IRE1α). A resident ...

journal_title：Molecular cell

authors： Eletto D,Eletto D,Dersh D,Gidalevitz T,Argon Y

更新日期：2014-02-20 00:00:00

abstract：:In mammals, inactivation of one X chromosome in the female equalizes gene dosages between XX females and XY males. Two noncoding loci, Tsix and Xite, together regulate X chromosome fate by controlling homologous chromosome pairing, counting, and mutually exclusive choice. Following choice, the asymmetry of Xite and Ts...

journal_title：Molecular cell

authors： Donohoe ME,Zhang LF,Xu N,Shi Y,Lee JT

更新日期：2007-01-12 00:00:00

abstract：:Tet(O) belongs to a class of ribosomal protection proteins that mediate tetracycline resistance. It is a G protein that shows significant sequence similarity to elongation factor EF-G. Here we present a cryo-electron microscopic reconstruction, at 16 A resolution, of its complex with the E. coli 70S ribosome. Tet(O) w...

journal_title：Molecular cell

authors： Spahn CM,Blaha G,Agrawal RK,Penczek P,Grassucci RA,Trieber CA,Connell SR,Taylor DE,Nierhaus KH,Frank J

更新日期：2001-05-01 00:00:00

abstract：:The Holliday junction is a central intermediate in homologous recombination. It consists of a four-way structure that can be resolved by cleavage to give either the crossover or noncrossover products observed. We show here that the formation of these products is controlled by the E. coli resolvasome (RuvABC) in such w...

journal_title：Molecular cell

authors： Cromie GA,Leach DR

更新日期：2000-10-01 00:00:00

abstract：:Yeast Sir2 protein regulates chromatin structure and suppresses recombination at the multiple tandem rDNA array. In the current issue of Cell, Kobayashi and colleagues reinvestigate rDNA dynamics in sir2 strains and find that Sir2 is necessary to recruit cohesins to the array, which influences the nature of rDNA recom...

journal_title：Molecular cell

authors： Reid RJ,Rothstein R

更新日期：2004-05-21 00:00:00

abstract：:Recent work from Kuehner and Brow (2008) and Thiebaut et al. (2008) in Molecular Cell and Jenks et al. (2008) in Molecular and Cellular Biology reveals that regulated expression of central nucleotide synthesis pathway components directs start site-dependent RNA polymerase II termination. ...

journal_title：Molecular cell

authors： Dichtl B

更新日期：2008-09-05 00:00:00

abstract：:The convergence of two DNA replication forks creates unique problems during DNA replication termination. In E. coli and SV40, the release of torsional strain by type II topoisomerases is critical for converging replisomes to complete DNA synthesis, but the pathways that mediate fork convergence in eukaryotes are unkno...

journal_title：Molecular cell

authors： Deegan TD,Baxter J,Ortiz Bazán MÁ,Yeeles JTP,Labib KPM

更新日期：2019-04-18 00:00:00

abstract：:Alternative splicing (AS) is a widespread process underlying the generation of transcriptomic and proteomic diversity and is frequently misregulated in human disease. Accordingly, an important goal of biomedical research is the development of tools capable of comprehensively, accurately, and efficiently profiling AS. ...

journal_title：Molecular cell

authors： Sterne-Weiler T,Weatheritt RJ,Best AJ,Ha KCH,Blencowe BJ

更新日期：2018-10-04 00:00:00

abstract：:In this issue of Molecular Cell, Chereji et al. (2017) present new data on MNase-sensitive particles previously identified upstream of transcription start sites at many promoters in budding yeast, and they argue, based upon negative histone-ChIP results, that they are non-nucleosomal signals generated by transcription...

journal_title：Molecular cell

authors： Kubik S,Bruzzone MJ,Albert B,Shore D

更新日期：2017-02-02 00:00:00

abstract：:Copy-number changes generate phenotypic variability in health and disease. Whether organisms protect against copy-number changes is largely unknown. Here, we show that Saccharomyces cerevisiae monitors the copy number of its ribosomal DNA (rDNA) and rapidly responds to copy-number loss with the clonal amplification of...

journal_title：Molecular cell

authors： Mansisidor A,Molinar T Jr,Srivastava P,Dartis DD,Pino Delgado A,Blitzblau HG,Klein H,Hochwagen A

更新日期：2018-11-01 00:00:00

abstract：:In this issue of Molecular Cell, Miotto and Struhl (2010) suggest that replication licensing, the loading of Mcm2-7 onto DNA, is promoted by HBO1 acetylating histone H4 at replication origins, providing a molecular view of how chromatin status influences origin usage. ...

journal_title：Molecular cell

authors： Chadha GS,Blow JJ

更新日期：2010-01-15 00:00:00

abstract：:AAA ATPases play central roles in cellular activities. The ATPase p97, a prototype of this superfamily, participates in organelle membrane fusion. Cryoelectron microscopy and single-particle analysis revealed that a major conformational change of p97 during the ATPase cycle occurred upon nucleotide binding and not dur...

journal_title：Molecular cell

authors： Rouiller I,Butel VM,Latterich M,Milligan RA,Wilson-Kubalek EM

更新日期：2000-12-01 00:00:00

abstract：:Negative selection eliminates thymocytes bearing autoreactive T cell receptors (TCR) via an apoptotic mechanism. We have cloned an inhibitor of NF-kappa B, I kappa BNS, which is rapidly expressed upon TCR-triggered but not dexamethasone- or gamma irradiation-stimulated thymocyte death. The predicted protein contains s...

journal_title：Molecular cell

authors： Fiorini E,Schmitz I,Marissen WE,Osborn SL,Touma M,Sasada T,Reche PA,Tibaldi EV,Hussey RE,Kruisbeek AM,Reinherz EL,Clayton LK

更新日期：2002-03-01 00:00:00

abstract：:The displacement loop (D loop) is the product of homology search and DNA strand invasion, constituting a central intermediate in homologous recombination (HR). In eukaryotes, the Rad51 DNA strand exchange protein is assisted in D loop formation by the Rad54 motor protein. Curiously, Rad54 also disrupts D loops. How th...

journal_title：Molecular cell

authors： Wright WD,Heyer WD

更新日期：2014-02-06 00:00:00

abstract：:Posttranslational modification of proliferating cell nuclear antigen (PCNA), an essential processivity clamp for DNA polymerases, by ubiquitin and SUMO contributes to the coordination of DNA replication, damage tolerance, and mutagenesis. Whereas ubiquitination in response to DNA damage promotes the bypass of replicat...

journal_title：Molecular cell

authors： Papouli E,Chen S,Davies AA,Huttner D,Krejci L,Sung P,Ulrich HD

更新日期：2005-07-01 00:00:00