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  • 2010-2014  (2)
  • 2000-2004
  • 2014  (2)
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  • 2010-2014  (2)
  • 2000-2004
Year
  • 1
    Online Resource
    Online Resource
    Multivariate polynomial interpolation with disturbed data (2014)
    Dortmund : Techn. Univ.
    Details Availability
    Keywords: Forschungsbericht
    Type of Medium: Online Resource
    Pages: Online-Ressource (21 S., 434 KB) , graph. Darst.
    Series Statement: [Ergebnisberichte angewandte Mathematik] [501]
    URL: https://edocs.tib.eu/files/e01fn15/827486820.pdf
    DDC: 510
    RVK:
    SI 711
    Language: English
    Note: Unterschiede zwischen dem gedruckten Dokument und der elektronischen Ressource können nicht ausgeschlossen werden , Systemvoraussetzungen: Acrobat reader.
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  • 2
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    Entrapment of DNA in an intersubunit tunnel system of a single-stranded DNA-binding protein (2014)
    Oxford University Press
    Details
    Publication Date: 2014-06-03
    Description: Instead of a classical s ingle- s tranded deoxyribonuleic acid (DNA)- b inding protein (SSB), some hyperthermophilic crenarchaea harbor a non-canonical SSB termed ThermoDBP. Two related but poorly characterized groups of proteins, which share the ThermoDBP N-terminal DNA-binding domain, have a broader phylogenetic distribution and co-exist with ThermoDBPs and/or other SSBs. We have investigated the nucleic acid binding properties and crystal structures of representatives of these groups of ThermoDBP- r elated p roteins (ThermoDBP-RPs) 1 and 2. ThermoDBP-RP 1 and 2 oligomerize by different mechanisms and only ThermoDBP-RP2 exhibits strong single-stranded DNA affinity in vitro . A crystal structure of ThermoDBP-RP2 in complex with DNA reveals how the NTD common to ThermoDBPs and ThermoDBP-RPs can contact the nucleic acid in a manner that allows a symmetric homotetrameric protein complex to bind single-stranded DNA molecules asymmetrically. While single-stranded DNA wraps around the surface or binds along channels of previously investigated SSBs, it traverses an internal, intersubunit tunnel system of a ThermoDBP-RP2 tetramer. Our results indicate that some archaea have acquired special SSBs for genome maintenance in particularly challenging environments.
    Print ISSN: 0305-1048
    Electronic ISSN: 1362-4962
    Topics: Biology
    Published by Oxford University Press
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