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Modulation of protein properties in living cells using nanobodies.

Kirchhofer, A. ; Helma, J. ; Schmidthals, K. ; Frauer, C. ; Cui, S. ; Karcher, A. ; Pellis, M. ; Muyldermans, S. ; Casas-Delucchi, C. S. ; Cardoso, M. Cristina ; Leonhardt, H. ; Hopfner, K. P. ; Rothbauer, U. (2010)
Modulation of protein properties in living cells using nanobodies.
In: Nature structural & molecular biology, 17 (1)
doi: 10.1038/nsmb.1727
Artikel, Bibliographie

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Kurzbeschreibung (Abstract)

Protein conformation is critically linked to function and often controlled by interactions with regulatory factors. Here we report the selection of camelid-derived single-domain antibodies (nanobodies) that modulate the conformation and spectral properties of the green fluorescent protein (GFP). One nanobody could reversibly reduce GFP fluorescence by a factor of 5, whereas its displacement by a second nanobody caused an increase by a factor of 10. Structural analysis of GFP-nanobody complexes revealed that the two nanobodies induce subtle opposing changes in the chromophore environment, leading to altered absorption properties. Unlike conventional antibodies, the small, stable nanobodies are functional in living cells. Nanobody-induced changes were detected by ratio imaging and used to monitor protein expression and subcellular localization as well as translocation events such as the tamoxifen-induced nuclear localization of estrogen receptor. This work demonstrates that protein conformations can be manipulated and studied with nanobodies in living cells.

Typ des Eintrags: Artikel
Erschienen: 2010
Autor(en): Kirchhofer, A. ; Helma, J. ; Schmidthals, K. ; Frauer, C. ; Cui, S. ; Karcher, A. ; Pellis, M. ; Muyldermans, S. ; Casas-Delucchi, C. S. ; Cardoso, M. Cristina ; Leonhardt, H. ; Hopfner, K. P. ; Rothbauer, U.
Art des Eintrags: Bibliographie
Titel: Modulation of protein properties in living cells using nanobodies.
Sprache: Englisch
Publikationsjahr: 2010
Titel der Zeitschrift, Zeitung oder Schriftenreihe: Nature structural & molecular biology
Jahrgang/Volume einer Zeitschrift: 17
(Heft-)Nummer: 1
DOI: 10.1038/nsmb.1727
URL / URN: http://www.cardoso-lab.org/publications/Kirchhofer_2010.pdf
Kurzbeschreibung (Abstract):

Protein conformation is critically linked to function and often controlled by interactions with regulatory factors. Here we report the selection of camelid-derived single-domain antibodies (nanobodies) that modulate the conformation and spectral properties of the green fluorescent protein (GFP). One nanobody could reversibly reduce GFP fluorescence by a factor of 5, whereas its displacement by a second nanobody caused an increase by a factor of 10. Structural analysis of GFP-nanobody complexes revealed that the two nanobodies induce subtle opposing changes in the chromophore environment, leading to altered absorption properties. Unlike conventional antibodies, the small, stable nanobodies are functional in living cells. Nanobody-induced changes were detected by ratio imaging and used to monitor protein expression and subcellular localization as well as translocation events such as the tamoxifen-induced nuclear localization of estrogen receptor. This work demonstrates that protein conformations can be manipulated and studied with nanobodies in living cells.

Fachbereich(e)/-gebiet(e): 10 Fachbereich Biologie > Cell Biology and Epigenetics
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10 Fachbereich Biologie
Hinterlegungsdatum: 06 Mär 2010 16:27
Letzte Änderung: 05 Mär 2013 09:32
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