Journal article
Protein-Protein Interaction in Purple Membrane
Abstract
We present experimental evidence for a long-range protein-protein interaction in purple membrane (PM). The interprotein dynamics were quantified by measuring the spectrum of the acoustic phonons in the 2D bacteriorhodopsin (BR) protein lattice using inelastic neutron scattering. Phonon energies of about 1 meV were determined. The data are compared to an analytical model, and the effective spring constant for the interaction between neighboring …
Authors
Rheinstädter MC; Schmalzl K; Wood K; Strauch D
Journal
Physical Review Letters, Vol. 103, No. 12,
Publisher
American Physical Society (APS)
Publication Date
September 18, 2009
DOI
10.1103/physrevlett.103.128104
ISSN
0031-9007