R loops: lassoing DNA methylation at CpGi.

abstract：:Serine/arginine (SR)-rich splicing factors contain an RNA binding domain and an arginine/serine (RS)-rich domain required for protein-protein interactions. In addition to their roles in the basic splicing reaction, SR proteins function as components of splicing enhancer complexes. Here, we investigate the role of RS d...

journal_title：Molecular cell

authors： Graveley BR,Maniatis T

更新日期：1998-04-01 00:00:00

abstract：:The anaphase-promoting complex/cyclosome (APC/C) regulates sister chromatid segregation and the exit from mitosis. Selection of most APC/C substrates is controlled by coactivator subunits (either Cdc20 or Cdh1) that interact with substrate destruction motifs--predominantly the destruction (D) box and KEN box degrons. ...

journal_title：Molecular cell

authors： He J,Chao WC,Zhang Z,Yang J,Cronin N,Barford D

更新日期：2013-06-06 00:00:00

abstract：:Metazoan histone mRNAs end in a highly conserved stem-loop structure followed by ACCCA. Previous studies have suggested that the stem-loop binding protein (SLBP) is the only protein binding this region. Using RNA affinity purification, we identified a second protein, designated 3'hExo, that contains a SAP and a 3' exo...

journal_title：Molecular cell

authors： Dominski Z,Yang XC,Kaygun H,Dadlez M,Marzluff WF

更新日期：2003-08-01 00:00:00

abstract：:MeCP2 is an essential transcriptional repressor that mediates gene silencing through binding to methylated DNA. Binding specificity has been thought to depend on hydrophobic interactions between cytosine methyl groups and a hydrophobic patch within the methyl-CpG-binding domain (MBD). X-ray analysis of a methylated DN...

journal_title：Molecular cell

authors： Ho KL,McNae IW,Schmiedeberg L,Klose RJ,Bird AP,Walkinshaw MD

更新日期：2008-02-29 00:00:00

abstract：:Human sister chromatids at metaphase are primarily linked by centromeric cohesion, forming the iconic X shape. Premature loss of centromeric cohesion disrupts orderly mitotic progression. Shugoshin (Sgo1) binds to and protects cohesin at inner centromeres. The kinetochore kinase Bub1 phosphorylates histone H2A at T120...

journal_title：Molecular cell

authors： Liu H,Qu Q,Warrington R,Rice A,Cheng N,Yu H

更新日期：2015-08-06 00:00:00

abstract：:Transcription of telomeric DNA has long been thought to inhibit telomerase. Using live cell imaging, in this issue, Cusanelli et al. (2013) now reveal a different scenario: telomeric RNA is preferentially generated at short telomeres and delivers telomerase to the chromosome end from which the transcript originated. ...

journal_title：Molecular cell

authors： Smekalova E,Baumann P

更新日期：2013-09-26 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：:RNA binding proteins (RBPs) regulate all aspects in the life cycle of RNA molecules. To elucidate the elements that guide RNA specificity, regulatory mechanisms, and functions of RBPs, methods that identify direct endogenous protein-RNA interactions are particularly valuable. UV crosslinking and immunoprecipitation (C...

journal_title：Molecular cell

authors： Lee FCY,Ule J

更新日期：2018-02-01 00:00:00

abstract：:Genome stability depends upon the RecQ helicases, which are conserved from bacteria to man, but little is known about how their myriad activities are regulated. Fission yeast lacking the telomere protein Taz1 (mammalian TRF1/TRF2 ortholog) lose many hallmarks of telomeres, including accurate replication and local prot...

journal_title：Molecular cell

authors： Rog O,Miller KM,Ferreira MG,Cooper JP

更新日期：2009-03-13 00:00:00

abstract：:Transcription is repressed if a DNA double-strand break (DSB) is introduced in close proximity to a transcriptional activation site at least in part by H2A-ubiquitination. While ATM signaling is involved, how it controls H2A-ubiquitination remains unclear. Here, we identify that, in response to DSBs, a transcriptional...

journal_title：Molecular cell

authors： Ui A,Nagaura Y,Yasui A

更新日期：2015-05-07 00:00:00

abstract：:Using genome-wide approaches, we have elucidated the regulatory circuitry governed by the XBP1 transcription factor, a key effector of the mammalian unfolded protein response (UPR), in skeletal muscle and secretory cells. We identified a core group of genes involved in constitutive maintenance of ER function in all ce...

journal_title：Molecular cell

authors： Acosta-Alvear D,Zhou Y,Blais A,Tsikitis M,Lents NH,Arias C,Lennon CJ,Kluger Y,Dynlacht BD

更新日期：2007-07-06 00:00:00

abstract：:Elucidating the individual and collaborative functions of genome maintenance factors is critical for understanding how genome duplication is achieved. Here, we investigate a conserved scaffold in budding yeast, Rtt107, and its three partners: a SUMO E3 complex, a ubiquitin E3 complex, and Slx4. Biochemical and genetic...

journal_title：Molecular cell

authors： Hang LE,Peng J,Tan W,Szakal B,Menolfi D,Sheng Z,Lobachev K,Branzei D,Feng W,Zhao X

更新日期：2015-10-15 00:00:00

abstract：:Circadian rhythms in mammals are generated by a transcriptional negative feedback loop that is driven primarily by oscillations of PER and CRY, which inhibit their own transcriptional activators, CLOCK and BMAL1. Current models posit that CRY is the dominant repressor, while PER may play an accessory role. In this stu...

journal_title：Molecular cell

authors： Chen R,Schirmer A,Lee Y,Lee H,Kumar V,Yoo SH,Takahashi JS,Lee C

更新日期：2009-11-13 00:00:00

abstract：:Two publications in the current issue of Cell introduce novel methods for high-throughput single-cell transcriptomics by using droplet microfluidics and sophisticated barcoding schemes for transcriptional profiling of thousands of individual cells. ...

journal_title：Molecular cell

authors： Junker JP,van Oudenaarden A

更新日期：2015-05-21 00:00:00

abstract：:The rtpA gene of Bacillus subtilis encodes the Anti-TRAP protein, AT. AT can bind and inhibit the TRAP regulatory protein, preventing TRAP from promoting transcription termination in the trpEDCFBA operon leader region. AT synthesis is upregulated transcriptionally and translationally in response to the accumulation of...

journal_title：Molecular cell

authors： Chen G,Yanofsky C

更新日期：2004-03-12 00:00:00

abstract：:Stalled replication forks are a critical problem for the cell because they can lead to complex genome rearrangements that underlie cell death and disease. Processes such as DNA damage tolerance and replication fork reversal protect stalled forks from these events. A central mediator of these DNA damage responses in hu...

journal_title：Molecular cell

authors： Kile AC,Chavez DA,Bacal J,Eldirany S,Korzhnev DM,Bezsonova I,Eichman BF,Cimprich KA

更新日期：2015-06-18 00:00:00

abstract：:In this issue of Molecular Cell, Tripathi and coworkers (Tripathi et al., 2010) decode some of the functions of a long noncoding RNA MALAT1. They provide evidence that MALAT1 regulates alternative splicing by controlling the activity of the SR protein family of splicing factors. ...

journal_title：Molecular cell

authors： Ankö ML,Neugebauer KM

更新日期：2010-09-24 00:00:00

abstract：:DNA replication forks pause in front of lesions on the template, eventually leading to cytotoxic chromosomal rearrangements. The in vivo structure of damaged eukaryotic replication intermediates has been so far elusive. Combining electron microscopy (EM) and two-dimensional (2D) gel electrophoresis, we found that UV-i...

journal_title：Molecular cell

authors： Lopes M,Foiani M,Sogo JM

更新日期：2006-01-06 00:00:00

abstract：:HIV-1 Nef plays important roles in HIV-1 replication and pathogenesis. It is translated from completely spliced HIV-1 RNA, and its expression is inherently regulated at the levels of viral DNA transcription and RNA splicing. Here we show that Sam68 cytoplasmic mutants potently suppress Nef expression. The suppression ...

journal_title：Molecular cell

authors： Henao-Mejia J,Liu Y,Park IW,Zhang J,Sanford J,He JJ

更新日期：2009-01-16 00:00:00

abstract：:Prions constitute a rare class of protein, which can switch to a robust amyloid form and then propagate that form in the absence of a nucleic acid determinant, thereby creating a unique, protein-only infectious agent. Details of the mechanism that drives conversion to the prion form and then subsequent propagation of ...

journal_title：Molecular cell

authors： Tuite MF,Koloteva-Levin N

更新日期：2004-06-04 00:00:00

abstract：:Argonaute proteins are required for the biogenesis of some small RNAs (sRNAs), including the PIWI-interacting RNAs and some microRNAs. How Argonautes mediate maturation of sRNAs independent of their slicer activity is not clear. The maturation of the Neurospora microRNA-like sRNA, milR-1, requires the Argonaute protei...

journal_title：Molecular cell

authors： Xue Z,Yuan H,Guo J,Liu Y

更新日期：2012-05-11 00:00:00

abstract：:MicroRNAs (miRNAs) inhibit mRNA expression in general by base pairing to the 3'UTR of target mRNAs and consequently inhibiting translation and/or initiating poly(A) tail deadenylation and mRNA destabilization. Here we examine the mechanism and kinetics of miRNA-mediated deadenylation in mouse Krebs-2 ascites extract. ...

journal_title：Molecular cell

authors： Fabian MR,Mathonnet G,Sundermeier T,Mathys H,Zipprich JT,Svitkin YV,Rivas F,Jinek M,Wohlschlegel J,Doudna JA,Chen CY,Shyu AB,Yates JR 3rd,Hannon GJ,Filipowicz W,Duchaine TF,Sonenberg N

更新日期：2009-09-24 00:00:00

abstract：:RING ubiquitin ligases (E3) recruit ubiquitin-conjugate enzymes (E2) charged with ubiquitin (Ub) to catalyze ubiquitination. Non-covalent Ub binding to the backside of certain E2s promotes processive polyUb formation, but the mechanism remains elusive. Here, we show that backside bound Ub (Ub(B)) enhances both RING-in...

journal_title：Molecular cell

authors： Buetow L,Gabrielsen M,Anthony NG,Dou H,Patel A,Aitkenhead H,Sibbet GJ,Smith BO,Huang DT

更新日期：2015-04-16 00:00:00

abstract：:Identifying DNA fragile sites is crucial to reveal hotspots of genomic rearrangements, yet their precise mapping has been a challenge. A new study in this issue of Molecular Cell (Canela et al., 2016) introduces a highly sensitive and accurate method to detect DNA breaks in vivo that can be adapted to various experime...

journal_title：Molecular cell

authors： Banerjee U,Soutoglou E

更新日期：2016-09-01 00:00:00

abstract：:Dosage compensation in Drosophila is dependent on MSL proteins and involves hypertranscription of the male X chromosome, which ensures equal X-linked gene expression in both sexes. Here, we report the purification of enzymatically active MSL complexes from Drosophila embryos, Schneider cells, and human HeLa cells. We ...

journal_title：Molecular cell

authors： Mendjan S,Taipale M,Kind J,Holz H,Gebhardt P,Schelder M,Vermeulen M,Buscaino A,Duncan K,Mueller J,Wilm M,Stunnenberg HG,Saumweber H,Akhtar A

更新日期：2006-03-17 00:00:00

abstract：:We obtained a recessive insertion mutation in the gene encoding yeast TBP-associated factor yTAFII61/68 that impairs Gcn4p-independent and Gcn4p-activated HIS3 transcription. This mutation also reduces transcription of seven other class II genes, thus indicating a broad role for this yTAFII in RNA polymerase II transc...

journal_title：Molecular cell

authors： Natarajan K,Jackson BM,Rhee E,Hinnebusch AG

更新日期：1998-11-01 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：:The tumor suppressor protein, p53, plays a critical role in mediating cellular response to stress signals by regulating genes involved in cell cycle arrest and apoptosis. p53 is believed to be inactive for DNA binding unless its C terminus is modified or structurally altered. We show that unmodified p53 actively binds...

journal_title：Molecular cell

authors： Espinosa JM,Emerson BM

更新日期：2001-07-01 00:00:00

abstract：:The Fanconi anemia (FA) pathway is implicated in DNA repair and cancer predisposition. Central to this pathway is the FA core complex, which is targeted to chromatin by FANCM and FAAP24 following replication stress. Here we show that FANCM and FAAP24 interact with the checkpoint protein HCLK2 independently of the FA c...

journal_title：Molecular cell

authors： Collis SJ,Ciccia A,Deans AJ,Horejsí Z,Martin JS,Maslen SL,Skehel JM,Elledge SJ,West SC,Boulton SJ

更新日期：2008-11-07 00:00:00

abstract：:Crossover recombination is essential for accurate chromosome segregation during meiosis. The MutSγ complex, Msh4-Msh5, facilitates crossing over by binding and stabilizing nascent recombination intermediates. We show that these activities are governed by regulated proteolysis. MutSγ is initially inactive for crossing ...

journal_title：Molecular cell

authors： He W,Rao HBDP,Tang S,Bhagwat N,Kulkarni DS,Ma Y,Chang MAW,Hall C,Bragg JW,Manasca HS,Baker C,Verhees GF,Ranjha L,Chen X,Hollingsworth NM,Cejka P,Hunter N

更新日期：2020-04-02 00:00:00