@article{Nesper2008Omp85-8644,
  year={2008},
  doi={10.1128/JB.00369-08},
  title={Omp85Tt from Thermus thermophilus HB27 : an Ancestral Type of the Omp85 Protein Family},
  number={13},
  volume={190},
  issn={0021-9193},
  journal={Journal of Bacteriology},
  pages={4568--4575},
  author={Nesper, Jutta and Brosig, Alexander and Ringler, Philippe and Patel, Geetika J. and Müller, Shirley A. and Kleinschmidt, Jörg and Boos, Winfried and Diederichs, Kay and Welte, Wolfram}
}

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    <dc:creator>Ringler, Philippe</dc:creator>
    <dc:creator>Brosig, Alexander</dc:creator>
    <dc:contributor>Welte, Wolfram</dc:contributor>
    <dc:creator>Kleinschmidt, Jörg</dc:creator>
    <dc:creator>Müller, Shirley A.</dc:creator>
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    <dcterms:abstract xml:lang="eng">Proteins belonging to the Omp85 family are involved in the assembly of β-barrel outer membrane proteins or in the translocation of proteins across the outer membrane in bacteria, mitochondria, and chloroplasts. The cell envelope of the thermophilic bacterium Thermus thermophilus HB27 is multilayered, including an outer membrane that is not well characterized. Neither the precise lipid composition nor much about integral membrane proteins is known. The genome of HB27 encodes one Omp85-like protein, Omp85Tt, representing an ancestral type of this family. We overexpressed Omp85Tt in T. thermophilus and purified it from the native outer membranes. In the presence of detergent, purified Omp85Tt existed mainly as a monomer, composed of two stable protease-resistant modules. Circular dichroism spectroscopy indicated predominantly β-sheet secondary structure. Electron microscopy of negatively stained lipid-embedded Omp85Tt revealed ring-like structures with a central cavity of ~1.5 nm in diameter. Single-channel conductance recordings indicated that Omp85Tt forms ion channels with two different conducting states, characterized by conductances of ~0.4 nS and ~0.65 nS, respectively.</dcterms:abstract>
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    <dc:creator>Diederichs, Kay</dc:creator>
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    <dc:contributor>Nesper, Jutta</dc:contributor>
    <dc:creator>Boos, Winfried</dc:creator>
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    <dc:contributor>Boos, Winfried</dc:contributor>
    <dcterms:bibliographicCitation>First publ. in: Journal of Bacteriology 190 (2008), 13, pp. 4568 4575</dcterms:bibliographicCitation>
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    <dc:contributor>Brosig, Alexander</dc:contributor>
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    <dcterms:title>Omp85Tt from Thermus thermophilus HB27 : an Ancestral Type of the Omp85 Protein Family</dcterms:title>
    <dc:contributor>Ringler, Philippe</dc:contributor>
    <dcterms:issued>2008</dcterms:issued>
    <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2011-03-24T17:45:21Z</dc:date>
    <dc:creator>Nesper, Jutta</dc:creator>
    <dc:contributor>Patel, Geetika J.</dc:contributor>
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    <dc:contributor>Müller, Shirley A.</dc:contributor>
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