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- Title
Formation of supramolecular structures of a native-like protein in the presence of amphiphilic peptides: Variations in aggregate morphology
- Authors
Artemova, Natalya; Stein-Margolina, Vita; Smirnova, Ekaterina; Gurvits, Bella
- Abstract
Abstract: A striking potential of the amphiphilic dipeptides, Arg-Phe or Asp-Phe, to induce aggregation of a model protein, alcohol dehydrogenase in its native-like state, has been demonstrated under physiologically relevant conditions, using dynamic light scattering, fluorescence spectroscopy, circular dichroism, transmission electron- and atomic force microscopy. The peptide action resulted in accumulation of a variety of morphologically distinct supramolecular structures profoundly differing from those generated by the heat-induced aggregation at the early stages of the process, when amyloid fibril assemblies were not detectable. The biogenic amphiphilic agents are suggested to act as regulators of structural transformations of native-like proteins.
- Subjects
SUPRAMOLECULAR chemistry; AMPHIPHILES; PEPTIDES; CLUSTERING of particles; ALCOHOL dehydrogenase; BIOLOGICAL variation; ATOMIC force microscopy
- Publication
FEBS Letters, 2012, Vol 586, Issue 2, p186
- ISSN
0014-5793
- Publication type
Article
- DOI
10.1016/j.febslet.2011.12.017