44 research outputs found

    Morphological and Transcriptomic Analysis of a Beetle Chemosensory System Reveals a Gnathal Olfactory Center

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    OR gene tissue expression and their chromosomal localization. a Venn diagram showing the number of ORs expressed (RPKM ≄ 0.5) in the different body parts: antennae, legs, mouthparts (as piece of the head capsule anterior of the antennae), heads (the whole head capsule including mouthparts but excluding the antennae), and bodies (excluding head and legs). b Venn diagram comparing our results (yellow, green) with data from Engsontia et al. [115] (blue, red). Number of expressed ORs, defined by RPKM ≄ 0.5 (yellow), by RT-PCR (blue), not expressed RPKM < 0.5 (green), or with no RT-PCR amplicon (red). ORs of the brown group were not previously tested by Engsontia et al. c Chromosomal localization of T. castaneum ORs. Based on the Georgia GA-2 strain genome assembly 3.0 [81], only chromosomal linkage groups containing an IR or SNMP are depicted. Gene clusters are indicated by a number referring to the chromosome and a letter conveys the relative position on the chromosome. The number of genes within this cluster is indicated in the square brackets. (PDF 277 kb

    Control of human adenovirus type 5 gene expression by cellular Daxx/ATRX chromatin-associated complexes

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    Death domain–associated protein (Daxx) cooperates with X-linked α-thalassaemia retardation syndrome protein (ATRX), a putative member of the sucrose non-fermentable 2 family of ATP-dependent chromatin-remodelling proteins, acting as the core ATPase subunit in this complex, whereas Daxx is the targeting factor, leading to histone deacetylase recruitment, H3.3 deposition and transcriptional repression of cellular promoters. Despite recent findings on the fundamental importance of chromatin modification in host-cell gene regulation, it remains unclear whether adenovirus type 5 (Ad5) transcription is regulated by cellular chromatin remodelling to allow efficient virus gene expression. Here, we focus on the repressive role of the Daxx/ATRX complex during Ad5 replication, which depends on intact protein–protein interaction, as negative regulation could be relieved with a Daxx mutant that is unable to interact with ATRX. To ensure efficient viral replication, Ad5 E1B-55K protein inhibits Daxx and targets ATRX for proteasomal degradation in cooperation with early region 4 open reading frame protein 6 and cellular components of a cullin-dependent E3-ubiquitin ligase. Our studies illustrate the importance and diversity of viral factors antagonizing Daxx/ATRX-mediated repression of viral gene expression and shed new light on the modulation of cellular chromatin remodelling factors by Ad5. We show for the first time that cellular Daxx/ATRX chromatin remodelling complexes play essential roles in Ad gene expression and illustrate the importance of early viral proteins to counteract cellular chromatin remodelling

    Transitkunst. Studien zur Literatur 1890-2010

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    Die Chiffre „Transit“ vereinigt mit Aspekten wie MobilitĂ€t, FlĂŒchtigkeit und VorlĂ€ufigkeit zentrale Begriffe des Zeiterlebens zwischen 1890 und 2010. Vor dem Hintergrund mehrerer Krisen und Katastrophen sowie tiefgreifender Umwandlungsprozesse erscheint das Leben als Durchgangsstadium, in dem sich nur noch ein temporĂ€res, fragmentarisches Netz von Orientierungspunkten entwerfen lĂ€sst. Das TransitĂ€re durchdringt nahezu alle Facetten des Individuums und seiner Lebensbereiche: vom Wahrnehmen der InkohĂ€renz in der Folge gesellschaftlicher UmwĂ€lzungen, ĂŒber den Verlust ‚sicherer‘ Orte bis zum Erfahren der eigenen IdentitĂ€t als provisorisch. Die Reaktion auf solche ÜbergangszustĂ€nde ist oft eine Intensivierung der Suchbewegungen nach Sicherheit, NĂ€he und GlĂŒck, die jedoch selbst zunehmend transitive Zwischenstellungen markieren. Die Literatur zeichnet sich unter dieser Perspektive durch die Adaptation transittypischer Themen und Inhalte aus, desgleichen durch die autoreflexive Übertragung von Konzepten wie Momenthaftigkeit, UnvollstĂ€ndigkeit und FlexibilitĂ€t in das eigene narrative Programm. Die BeitrĂ€ge des Bandes nĂ€hern sich verschiedenen Formen eines solchen inhaltlichen und/oder formalen ‚Dazwischen‘ an. Die Idee des Transits erweist sich dabei fĂŒr diese vielfĂ€ltigen literatur- und kulturwissenschaftlichen Untersuchungen als ebenso funktionale wie inspirierende Klammer, der es gelingt, im bewussten Einlassen auf das im Durchgang Begriffene die heterogenen Facetten des 20. Jahrhunderts zu verbinden: zu einer Art Zeitbild und Ästhetik des Transits

    Euclid Near Infrared Spectrometer and Photometer instrument concept and first test results obtained for different breadboards models at the end of phase C

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    The Euclid mission objective is to understand why the expansion of the Universe is accelerating through by mapping the geometry of the dark Universe by investigating the distance-redshift relationship and tracing the evolution of cosmic structures. The Euclid project is part of ESA's Cosmic Vision program with its launch planned for 2020 (ref [1]). The NISP (Near Infrared Spectrometer and Photometer) is one of the two Euclid instruments and is operating in the near-IR spectral region (900- 2000nm) as a photometer and spectrometer. The instrument is composed of: - a cold (135K) optomechanical subsystem consisting of a Silicon carbide structure, an optical assembly (corrector and camera lens), a filter wheel mechanism, a grism wheel mechanism, a calibration unit and a thermal control system - a detection subsystem based on a mosaic of 16 HAWAII2RG cooled to 95K with their front-end readout electronic cooled to 140K, integrated on a mechanical focal plane structure made with molybdenum and aluminum. The detection subsystem is mounted on the optomechanical subsystem structure - a warm electronic subsystem (280K) composed of a data processing / detector control unit and of an instrument control unit that interfaces with the spacecraft via a 1553 bus for command and control and via Spacewire links for science data This presentation describes the architecture of the instrument at the end of the phase C (Detailed Design Review), the expected performance, the technological key challenges and preliminary test results obtained for different NISP subsystem breadboards and for the NISP Structural and Thermal model (STM)

    Medienprodukt Manga - Distribution im Sortimentsbuchhandel

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    Die vorliegende Forschungsarbeit analysiert das Medienprodukt Manga und dessen Vertrieb im deutschen Sortimentsbuchhandel. Schwerpunkt der Arbeit liegt auf der Analyse der Sortiments- und Kommunikationspolitik im physischen Verkaufsraum. Die benötigten Informationen wurden im Rahmen einer empirischen Erhebung ermittelt, die sich aus Feldbeobachtungen und qualitativen Interviews zusammensetzt. Anhand der Ergebnisse wird der Versuch unternommen, Problemfelder und mögliche HandlungsspielrĂ€ume aufzuzeigen und eine Grundlage fĂŒr weiterfĂŒhrende Forschung zu schaffen.This master thesis focuses on the media product of manga and its distribution in the German retail book trade. Thematic emphasis of this research work is given to product presentation and range layout of manga in the context of the stationary retail. The information to describe the current situation was collected by means of an original empirical survey. The goal of this project was to showcase scope of action, highlight problematic areas, as well as provide groundwork for further research in this field
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