Characterizing molecular interactions in different bacteriorhodopsin assemblies by single-molecule force spectroscopy.

Abstract excerpt

Using single-molecule force spectroscopy we characterized inter- and intramolecular interactions stabilizing structural segments of individual bacteriorhodopsin (BR) molecules assembled into trimers and dimers, and monomers. While the assembly of BR did not vary the location of these structural segments, their intrinsic stability could change up to 70% increasing from monomer to dimer to trimer. Since each stable...

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