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  1. Buch ; Online ; Dissertation / Habilitation: Biochemical and functional characterization of DHX30, an RNA helicase linked to neurodevelopmental disorder

    Huber, Hannes [Verfasser] / Fischer, Utz [Gutachter]

    2023  

    Verfasserangabe Hannes Huber ; Gutachter: Utz Fischer
    Schlagwörter Biowissenschaften, Biologie ; Life Science, Biology
    Thema/Rubrik (Code) sg570
    Sprache Englisch
    Verlag Universität Würzburg
    Erscheinungsort Würzburg
    Dokumenttyp Buch ; Online ; Dissertation / Habilitation
    Datenquelle Digitale Dissertationen im Internet

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  2. Buch ; Online ; Dissertation / Habilitation: The role of alternative intronic polyadenylation on microRNA biogenesis in melanoma

    Blahetek, Gina [Verfasser] / Vorlova, Sandra [Gutachter] / Fischer, Utz [Gutachter]

    2024  

    Verfasserangabe Gina Blahetek ; Gutachter: Sandra Vorlova, Utz Fischer
    Schlagwörter Biowissenschaften, Biologie ; Life Science, Biology
    Thema/Rubrik (Code) sg570
    Sprache Englisch
    Verlag Universität Würzburg
    Erscheinungsort Würzburg
    Dokumenttyp Buch ; Online ; Dissertation / Habilitation
    Datenquelle Digitale Dissertationen im Internet

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  3. Buch ; Online ; Dissertation / Habilitation: Identifizierung und Untersuchung TOP-mRNA - bindender Faktoren

    Amelingmeier, Florian [Verfasser] / Fischer, Utz [Gutachter]

    2022  

    Verfasserangabe Florian Amelingmeier ; Gutachter: Utz Fischer
    Schlagwörter Biowissenschaften, Biologie ; Life Science, Biology
    Thema/Rubrik (Code) sg570
    Sprache Deutsch
    Verlag Universität Würzburg
    Erscheinungsort Würzburg
    Dokumenttyp Buch ; Online ; Dissertation / Habilitation
    Datenquelle Digitale Dissertationen im Internet

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  4. Buch ; Online ; Dissertation / Habilitation: Biochemical and structural characterisation of modules within the SMN complex

    Viswanathan, Aravindan [Verfasser] / Fischer, Utz [Gutachter]

    2022  

    Verfasserangabe Aravindan Viswanathan ; Gutachter: Utz Fischer
    Schlagwörter Biowissenschaften, Biologie ; Life Science, Biology
    Thema/Rubrik (Code) sg570
    Sprache Englisch
    Verlag Universität Würzburg
    Erscheinungsort Würzburg
    Dokumenttyp Buch ; Online ; Dissertation / Habilitation
    Datenquelle Digitale Dissertationen im Internet

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  5. Artikel: Cytoplasmic gene expression: lessons from poxviruses

    Grimm, Clemens / Bartuli, Julia / Fischer, Utz

    Trends in biochemical sciences. 2022,

    2022  

    Abstract: In eukaryotic cells, the process of gene expression is confined to the nucleus and enabled by multisubunit RNA polymerases (RNAPs). Many viruses make use of the host cellular gene expression apparatus during infection, and hence transfer their genome at ... ...

    Abstract In eukaryotic cells, the process of gene expression is confined to the nucleus and enabled by multisubunit RNA polymerases (RNAPs). Many viruses make use of the host cellular gene expression apparatus during infection, and hence transfer their genome at least transiently to the host nucleus. However, poxviruses have evolved a different strategy to propagate. Their double-stranded DNA genome is transcribed in the host cytoplasm by a virus-encoded RNAP (vRNAP), which is evolutionarily related to eukaryotic RNA polymerase II. In this Review, we highlight recent high-resolution structures of the poxviral transcription apparatus in different phases of action. These structures, along with biochemical data, now allow the definition of a comprehensive model of poxviral gene expression and its regulation.
    Schlagwörter DNA ; DNA-directed RNA polymerase ; Poxviridae ; RNA ; cytoplasm ; gene expression ; genome ; models
    Sprache Englisch
    Erscheinungsort Elsevier Ltd
    Dokumenttyp Artikel
    Anmerkung Pre-press version
    ZDB-ID 194220-7
    ISSN 0968-0004 ; 0376-5067
    ISSN 0968-0004 ; 0376-5067
    DOI 10.1016/j.tibs.2022.04.010
    Datenquelle NAL Katalog (AGRICOLA)

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  6. Artikel ; Online: lncRNA Malat1 and miR-26 cooperate in the regulation of neuronal progenitor cell proliferation and differentiation.

    Was, Nina / Sauer, Mark / Fischer, Utz / Becker, Matthias

    RNA (New York, N.Y.)

    2022  

    Abstract: Neurogenesis is a finely tuned process, which depends on the balanced execution of expression programs that regulate cellular differentiation and proliferation. Different molecular players ranging from transcription factors to chromatin modulators ... ...

    Abstract Neurogenesis is a finely tuned process, which depends on the balanced execution of expression programs that regulate cellular differentiation and proliferation. Different molecular players ranging from transcription factors to chromatin modulators control these programs. Adding to the complexity, also non-coding (nc)RNAs take part in this process. Here we analyzed the function of the long non-coding (lnc)RNA Malat1 during neural embryonic stem cell (ESC) differentiation. We find that deletion of Malat1 leads to inhibition of proliferation of neural progenitor cells (NPCs). Interestingly, this co-insides with an increase in the expression of miR-26 family members miR-26a and miR-26b in differentiating ESCs. Inactivation of miR-26a/b rescues the proliferative phenotype of Malat1 knockout (KO) cells and leads to accelerated neuronal differentiation of compound Malat1KO/mir-26KO ESCs. Together our work identifies a so far unknown interaction between Malat1 and miR-26 in the regulation of NPC proliferation and neuronal differentiation.
    Sprache Englisch
    Erscheinungsdatum 2022-10-27
    Erscheinungsland United States
    Dokumenttyp Journal Article
    ZDB-ID 1241540-6
    ISSN 1469-9001 ; 1355-8382
    ISSN (online) 1469-9001
    ISSN 1355-8382
    DOI 10.1261/rna.079436.122
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  7. Artikel: Cytoplasmic gene expression: lessons from poxviruses.

    Grimm, Clemens / Bartuli, Julia / Fischer, Utz

    Trends in biochemical sciences

    2022  Band 47, Heft 10, Seite(n) 892–902

    Abstract: In eukaryotic cells, the process of gene expression is confined to the nucleus and enabled by multisubunit RNA polymerases (RNAPs). Many viruses make use of the host cellular gene expression apparatus during infection, and hence transfer their genome at ... ...

    Abstract In eukaryotic cells, the process of gene expression is confined to the nucleus and enabled by multisubunit RNA polymerases (RNAPs). Many viruses make use of the host cellular gene expression apparatus during infection, and hence transfer their genome at least transiently to the host nucleus. However, poxviruses have evolved a different strategy to propagate. Their double-stranded DNA genome is transcribed in the host cytoplasm by a virus-encoded RNAP (vRNAP), which is evolutionarily related to eukaryotic RNA polymerase II. In this Review, we highlight recent high-resolution structures of the poxviral transcription apparatus in different phases of action. These structures, along with biochemical data, now allow the definition of a comprehensive model of poxviral gene expression and its regulation.
    Mesh-Begriff(e) Cell Nucleus/genetics ; Cytoplasm/genetics ; DNA-Directed RNA Polymerases/chemistry ; Gene Expression ; Poxviridae/genetics ; RNA Polymerase II/genetics ; Transcription, Genetic
    Chemische Substanzen RNA Polymerase II (EC 2.7.7.-) ; DNA-Directed RNA Polymerases (EC 2.7.7.6)
    Sprache Englisch
    Erscheinungsdatum 2022-05-15
    Erscheinungsland England
    Dokumenttyp Journal Article ; Review
    ZDB-ID 194216-5
    ISSN 1362-4326 ; 0968-0004 ; 0376-5067
    ISSN (online) 1362-4326
    ISSN 0968-0004 ; 0376-5067
    DOI 10.1016/j.tibs.2022.04.010
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  8. Buch ; Online ; Dissertation / Habilitation: Functional characterization of the TTF complex and its role in neurodevelopmental disorders

    Brosi, Cornelia [Verfasser] / Fischer, Utz [Gutachter]

    2021  

    Verfasserangabe Cornelia Brosi ; Gutachter: Utz Fischer
    Schlagwörter Medizin, Gesundheit ; Medicine, Health
    Thema/Rubrik (Code) sg610
    Sprache Englisch
    Verlag Universität Würzburg
    Erscheinungsort Würzburg
    Dokumenttyp Buch ; Online ; Dissertation / Habilitation
    Datenquelle Digitale Dissertationen im Internet

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  9. Artikel ; Online: Dirac Cones and Room Temperature Polariton Lasing Evidenced in an Organic Honeycomb Lattice.

    Betzold, Simon / Düreth, Johannes / Dusel, Marco / Emmerling, Monika / Bieganowska, Antonina / Ohmer, Jürgen / Fischer, Utz / Höfling, Sven / Klembt, Sebastian

    Advanced science (Weinheim, Baden-Wurttemberg, Germany)

    2024  Band 11, Heft 21, Seite(n) e2400672

    Abstract: Artificial 1D and 2D lattices have emerged as a powerful platform for the emulation of lattice Hamiltonians, the fundamental study of collective many-body effects, and phenomena arising from non-trivial topology. Exciton-polaritons, bosonic part-light ... ...

    Abstract Artificial 1D and 2D lattices have emerged as a powerful platform for the emulation of lattice Hamiltonians, the fundamental study of collective many-body effects, and phenomena arising from non-trivial topology. Exciton-polaritons, bosonic part-light and part-matter quasiparticles, combine pronounced nonlinearities with the possibility of on-chip implementation. In this context, organic semiconductors embedded in microcavities have proven to be versatile candidates to study nonlinear many-body physics and bosonic condensation, and in contrast to most inorganic systems, they allow the use at ambient conditions since they host ultra-stable Frenkel excitons. A well-controlled, high-quality optical lattice is implemented that accommodates light-matter quasiparticles. The realized polariton graphene presents with excellent cavity quality factors, showing distinct signatures of Dirac cone and flatband dispersions as well as polariton lasing at room temperature. This is realized by filling coupled dielectric microcavities with the fluorescent protein mCherry. The emergence of a coherent polariton condensate at ambient conditions are demonstrated, taking advantage of coupling conditions as precise and controllable as in state-of-the-art inorganic semiconductor-based systems, without the limitations of e.g. lattice matching in epitaxial growth. This progress allows straightforward extension to more complex systems, such as the study of topological phenomena in 2D lattices including topological lasers and non-Hermitian optics.
    Sprache Englisch
    Erscheinungsdatum 2024-04-12
    Erscheinungsland Germany
    Dokumenttyp Journal Article
    ZDB-ID 2808093-2
    ISSN 2198-3844 ; 2198-3844
    ISSN (online) 2198-3844
    ISSN 2198-3844
    DOI 10.1002/advs.202400672
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  10. Artikel: Structure and function of the poxvirus transcription machinery.

    Fischer, Utz / Bartuli, Julia / Grimm, Clemens

    The Enzymes

    2021  Band 50, Seite(n) 1–20

    Abstract: Members of the Poxviridae family are large double-stranded DNA viruses that replicate exclusively in the cytoplasm of their hosts. This goes in hand with a high level of independence from the host cell, which supports transcription and replication events ...

    Abstract Members of the Poxviridae family are large double-stranded DNA viruses that replicate exclusively in the cytoplasm of their hosts. This goes in hand with a high level of independence from the host cell, which supports transcription and replication events only in the nucleus or in DNA-containing organelles. Consequently, virus specific, rather than cellular enzymes mediate most processes involving DNA replication and mRNA synthesis. Recent technological advances allowed a detailed functional and structural investigation of the transcription machinery of the prototypic poxvirus vaccinia. The DNA-dependent RNA polymerase (RNAP) at its core displays distinct similarities to eukaryotic RNAPs. Strong idiosyncrasies, however, are apparent for viral factors that are associated with the viral RNAP during mRNA production. We expect that future studies will unravel more key aspects of poxvirus gene expression, helping also the understanding of nuclear transcription mechanisms.
    Mesh-Begriff(e) DNA-Directed RNA Polymerases ; Poxviridae/genetics ; Transcription, Genetic ; Viral Proteins/genetics ; Virus Replication
    Chemische Substanzen Viral Proteins ; DNA-Directed RNA Polymerases (EC 2.7.7.6)
    Sprache Englisch
    Erscheinungsdatum 2021-07-24
    Erscheinungsland United States
    Dokumenttyp Journal Article
    ISSN 0423-2607
    ISSN 0423-2607
    DOI 10.1016/bs.enz.2021.06.005
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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