Structural and Viscoelastic Properties of Actin Networks Formed by Espin or Pathologically Relevant Espin Mutants

Oliver Lieleg, Kurt M. Schmoller, Kirstin R. Purdy Drew, Mireille Maria Anna Elisabeth Claessens, Christine Semmrich, Lili Zheng, James R. Bartles, Andreas R. Bausch

Research output: Contribution to journalArticleAcademicpeer-review

8 Citations (Scopus)

Abstract

The structural organization of the cytoskeleton determines its viscoelastic response which is crucial for the correct functionality of living cells. Both the mechanical response and microstructure of the cytoskeleton are regulated on a microscopic level by the local activation of different actin binding and/or bundling proteins (ABPs). Misregulations in the expression of these ABPs or mutations in their sequence can entail severe cellular dysfunctions and diseases. Here, we study the structural and viscoelastic properties of reconstituted actin networks cross-linked by the ABP espin and compare the obtained network properties to those of other bundled actin networks. Moreover, we quantify the impact of pathologically relevant espin mutations on the viscoelastic properties of these cytoskeletal networks.
Original languageUndefined
Pages (from-to)-
JournalChemPhysChem
Volumeaccepted
Issue number16
DOIs
Publication statusPublished - 2009

Keywords

  • METIS-259575
  • biophysics
  • PROTEINS
  • Fluorescence
  • Actin
  • MUTATION
  • IR-72768

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