Initiation of transcription at the bacterial glnAp2 promoter by purified E. coli components is facilitated by enhancers.

abstract：:The classical model for the activation of the nucleotide exchange factor Son of sevenless (SOS) involves its recruitment to the membrane, where it engages Ras. The recent discovery that Ras*GTP is an allosteric activator of SOS indicated that the regulation of SOS is more complex than originally envisaged. We now pres...

journal_title：Cell

authors： Sondermann H,Soisson SM,Boykevisch S,Yang SS,Bar-Sagi D,Kuriyan J

更新日期：2004-10-29 00:00:00

abstract：:The orderly reduction in chromosome number that occurs during meiosis depends on two aspects of chromosome behavior specific to the first meiotic division. These are the retention of cohesion between sister centromeres and their attachment to microtubules that extend to the same pole (monopolar attachment). By deletin...

journal_title：Cell

authors： Tóth A,Rabitsch KP,Gálová M,Schleiffer A,Buonomo SB,Nasmyth K

更新日期：2000-12-22 00:00:00

abstract：:Four major receptor families enable cells to respond to chemical and physical signals from their proximal environment. The ligand- and voltage-gated ion channels, G-protein-coupled receptors, nuclear hormone receptors, and receptor tyrosine kinases are all allosteric proteins that carry multiple, spatially distinct, y...

journal_title：Cell

authors： Changeux JP,Christopoulos A

更新日期：2016-08-25 00:00:00

abstract：:The major site of in vivo transcriptional initiation for both heavy and light strands of human mitochondrial DNA is the displacement-loop region. Transcripts synthesized in vitro by human mitochondrial RNA polymerase were mapped to the nucleotide level and have identical 5' end map positions to those reported for in v...

journal_title：Cell

authors： Chang DD,Clayton DA

更新日期：1984-03-01 00:00:00

abstract：:The influence of MHC antigens on TCR gamma delta usage in CD8+ intraepithelial lymphocytes (IELs) was examined using a pan-reactive and V delta 4 region-specific MAb. While an average of 30% of IELs from the majority of mice of various MHC haplotypes were V delta 4+, a 2-fold or greater percentage of IELs from H-2k mi...

journal_title：Cell

authors： Lefrancois L,LeCorre R,Mayo J,Bluestone JA,Goodman T

更新日期：1990-10-19 00:00:00

abstract：:Two papers published in 1984 by the Varshavsky laboratory revealed that the ubiquitin/proteasome pathway is the principal system for degradation of short-lived proteins in mammalian cells, setting the stage for future demonstrations of this pathway's many regulatory roles. This perspective discusses the impact of thos...

journal_title：Cell

authors： Pickart CM

更新日期：2004-01-23 00:00:00

abstract：:Mutations in the single-minded (sim) gene of Drosophila result in the loss of the precursor cells giving rise to the midline cells of the embryonic central nervous system. We have examined the structure of the sim product by sequencing a sim cDNA clone, and have also determined the subcellular localization of the prot...

journal_title：Cell

authors： Crews ST,Thomas JB,Goodman CS

更新日期：1988-01-15 00:00:00

abstract：:The existence of pseudogenes and the observation of intron loss suggest that RNA can serve as an intermediate in recombination. We used a HIS3 reporter gene to show that RNA-mediated recombination occurs in yeast. His3+ prototroph formation required transcription and expression of the retrotransposon Ty. Two RNA-media...

journal_title：Cell

authors： Derr LK,Strathern JN,Garfinkel DJ

更新日期：1991-10-18 00:00:00

abstract：:NF-kappa B is a nuclear protein, found only in cells that transcribe immunoglobulin light chain genes, that interacts with a defined site in the kappa immunoglobulin enhancer. This protein can be induced in pre-B cells by stimulation with bacterial lipopolysaccharide (LPS). The induction involves a posttranslational a...

journal_title：Cell

authors： Sen R,Baltimore D

更新日期：1986-12-26 00:00:00

abstract：:Fos protein can trans-activate AP-1-dependent gene expression and trans-repress the c-fos promoter. Although we find that trans-repression is enhanced by coexpression of c-Jun, it does not require any of the AP-1 or ATF sites in the mouse c-fos promoter. A major target for repression is the serum response element (SRE...

journal_title：Cell

authors： Lucibello FC,Lowag C,Neuberg M,Müller R

更新日期：1989-12-22 00:00:00

abstract：:Exposure to Mycobacterium tuberculosis produces varied early outcomes, ranging from resistance to infection to progressive disease. Here we report results from a forward genetic screen in zebrafish larvae that identify multiple mutant classes with distinct patterns of innate susceptibility to Mycobacterium marinum. A ...

journal_title：Cell

authors： Tobin DM,Vary JC Jr,Ray JP,Walsh GS,Dunstan SJ,Bang ND,Hagge DA,Khadge S,King MC,Hawn TR,Moens CB,Ramakrishnan L

更新日期：2010-03-05 00:00:00

abstract：:Ku is a heterodimeric DNA end binding complex composed of 70 and 86 kDa subunits. Here, we show that Ku86 is essential for normal V(D)J recombination in vivo, as Ku86-deficient mice are severely defective for formation of coding joints. Unlike severe combined immunodeficient (scid) mice, Ku86-deficient mice are also d...

journal_title：Cell

authors： Zhu C,Bogue MA,Lim DS,Hasty P,Roth DB

更新日期：1996-08-09 00:00:00

abstract：:The Mre11/Rad50 complex has been implicated in the early steps of DNA double-strand break (DSB) repair through homologous recombination in several organisms. However, the enzymatic properties of this complex are incompatible with the generation of 3' single-stranded DNA for recombinase loading and strand exchange. In ...

journal_title：Cell

authors： Hopkins BB,Paull TT

更新日期：2008-10-17 00:00:00

abstract：:Accurately predicting an outcome requires that animals learn supporting and conflicting evidence from sequential experience. In mammals and invertebrates, learned fear responses can be suppressed by experiencing predictive cues without punishment, a process called memory extinction. Here, we show that extinction of av...

journal_title：Cell

authors： Felsenberg J,Jacob PF,Walker T,Barnstedt O,Edmondson-Stait AJ,Pleijzier MW,Otto N,Schlegel P,Sharifi N,Perisse E,Smith CS,Lauritzen JS,Costa M,Jefferis GSXE,Bock DD,Waddell S

更新日期：2018-10-18 00:00:00

abstract：:We have shown previously that the putative oncogene pim-1 is frequently activated by provirus insertion in murine leukemia virus-induced T cell lymphomas. Here we describe the structure of the pim-1 gene as determined by sequencing genomic and cDNA clones. The gene has an open reading frame, encoding a protein of 313 ...

journal_title：Cell

authors： Selten G,Cuypers HT,Boelens W,Robanus-Maandag E,Verbeek J,Domen J,van Beveren C,Berns A

更新日期：1986-08-15 00:00:00

abstract：:During metastasis, migrating breast cancer stem cells undergo a loss of polarity leading to an epithelial-to-mesenchymal transition (EMT). Gupta et al. (2009) use this attribute of cancer stem cells to develop a high-throughput screen, which successfully identifies small molecules that specifically inhibit cancer stem...

journal_title：Cell

authors： Beug H

更新日期：2009-08-21 00:00:00

abstract：:The preprotein translocase of the outer membrane of mitochondria (TOM complex) facilitates the recognition, insertion, and translocation of nuclear-encoded mitochondrial preproteins. We have purified the TOM complex from Neurospora crassa and analyzed its composition and functional properties. The TOM complex contains...

journal_title：Cell

authors： Künkele KP,Heins S,Dembowski M,Nargang FE,Benz R,Thieffry M,Walz J,Lill R,Nussberger S,Neupert W

更新日期：1998-06-12 00:00:00

abstract：:Neurons typically settle at positions that match the location of their synaptic targets, creating topographic maps. In the spinal cord, the organization of motor neurons into discrete clusters is linked to the location of their muscle targets, establishing a topographic map of punctate design. To define the significan...

journal_title：Cell

authors： Demireva EY,Shapiro LS,Jessell TM,Zampieri N

更新日期：2011-10-28 00:00:00

abstract：:A recombinant peptide encoding the CD11b A domain bound 54Mn2+ with a high affinity. Other divalent cations, including Mg2+, Zn2+, Ni2+, Co2+, and Cd2+, but not Ca2+ or Ba2+, competed effectively for Mn2+ binding. Amino acid substitutions within two conserved and noncontiguous regions in the recombinant peptide abolis...

journal_title：Cell

authors： Michishita M,Videm V,Arnaout MA

更新日期：1993-03-26 00:00:00

abstract：:Mammalian models of longevity are related primarily to caloric restriction and alterations in metabolism. We examined mice in which type 5 adenylyl cyclase (AC5) is knocked out (AC5 KO) and which are resistant to cardiac stress and have increased median lifespan of approximately 30%. AC5 KO mice are protected from red...

journal_title：Cell

authors： Yan L,Vatner DE,O'Connor JP,Ivessa A,Ge H,Chen W,Hirotani S,Ishikawa Y,Sadoshima J,Vatner SF

更新日期：2007-07-27 00:00:00

abstract：:In this issue, Metzis et al., demonstrate that in the development of the central nervous system, patterning along the anterior-posterior axis precedes acquisition of neural identity. This contrasts with the prevailing view that neural identity comes first, providing a new window on the origins of the brain and spinal ...

journal_title：Cell

authors： Simon CS,Hadjantonakis AK

更新日期：2018-11-01 00:00:00

abstract：:Retroviral DNA integration involves a coordinated set of DNA cutting and joining reactions. We find that the IN protein of Moloney murine leukemia virus (MoMLV) is the only viral protein required to accomplish these reactions in vitro. IN protein has a site-specific nuclease activity that cleaves 2 nucleotides from th...

journal_title：Cell

authors： Craigie R,Fujiwara T,Bushman F

更新日期：1990-08-24 00:00:00

abstract：:Goosecoid (gsc), a homeobox gene expressed specifically in the dorsal blastopore lip of the Xenopus gastrula, is considered to play an important role in Spemann's organizer phenomenon. Lineage tracing and time-lapse microscopy were used to follow the fate of embryonic cells microinjected with gsc mRNA. Microinjected g...

journal_title：Cell

authors： Niehrs C,Keller R,Cho KW,De Robertis EM

更新日期：1993-02-26 00:00:00

abstract：:The microtubule-based metaphase spindle is subjected to forces that act in diverse orientations and over a wide range of timescales. Currently, we cannot explain how this dynamic structure generates and responds to forces while maintaining overall stability, as we have a poor understanding of its micromechanical prope...

journal_title：Cell

authors： Shimamoto Y,Maeda YT,Ishiwata S,Libchaber AJ,Kapoor TM

更新日期：2011-06-24 00:00:00

abstract：:As in eukaryotes, bacterial genomes are not randomly folded. Bacterial genetic information is generally carried on a circular chromosome with a single origin of replication from which two replication forks proceed bidirectionally toward the opposite terminus region. Here, we investigate the higher-order architecture o...

journal_title：Cell

authors： Lioy VS,Cournac A,Marbouty M,Duigou S,Mozziconacci J,Espéli O,Boccard F,Koszul R

更新日期：2018-02-08 00:00:00

abstract：:P-selectin binding to neutrophils requires a specific protein, P-selectin glycoprotein ligand 1 (PSGL-1), as well as sialyl-Lewis X (sLex) glycan determinants. We have found that a short segment near the amino terminus of PSGL-1 that contains a tyrosine sulfation consensus is essential for P-selectin adhesion and that...

journal_title：Cell

authors： Pouyani T,Seed B

更新日期：1995-10-20 00:00:00

abstract：:The full-length cDNA for a transcriptional activator, DBP, that binds to the D site of the albumin promoter has been cloned. DBP belongs to a family of related transcription factors including Fos, Jun, CREB, and C/EBP, which share a conserved basic domain. However, unlike most other members of this family, DBP does no...

journal_title：Cell

authors： Mueller CR,Maire P,Schibler U

更新日期：1990-04-20 00:00:00

abstract：:A cDNA clone encoding a novel hematopoietic growth factor activity produced by a gibbon T cell line has been identified using a mammalian cell expression cloning system. The sequence of this cDNA proved to have significant homology to the sequence encoding murine interleukin 3 (IL-3). The human gene, which was readily...

journal_title：Cell

authors： Yang YC,Ciarletta AB,Temple PA,Chung MP,Kovacic S,Witek-Giannotti JS,Leary AC,Kriz R,Donahue RE,Wong GG

更新日期：1986-10-10 00:00:00

abstract：:X-linked lissencephaly and "double cortex" are allelic human disorders mapping to Xq22.3-Xq23 associated with arrest of migrating cerebral cortical neurons. We identified a novel 10 kb brain-specific cDNA interrupted by a balanced translocation in an XLIS patient that encodes a novel 40 kDa predicted protein named Dou...

journal_title：Cell

authors： Gleeson JG,Allen KM,Fox JW,Lamperti ED,Berkovic S,Scheffer I,Cooper EC,Dobyns WB,Minnerath SR,Ross ME,Walsh CA

更新日期：1998-01-09 00:00:00

abstract：:Clathrin-mediated endocytosis is a key mechanism by which cells take up extracellular cargo. In this issue, Shimada et al. (2007) reveal the mode of action of the F-BAR domain, which deepens the initial membrane pit that forms during clathrin-mediated endocytosis. ...

journal_title：Cell

authors： Fütterer K,Machesky LM

更新日期：2007-05-18 00:00:00