AUTHOR(S): 

Pavel Herman, David Zapletal, Jaroslav Charvat

TITLE

B850 Ring from Photosynthetic Complex LH2 – Influence of Static Disorder

KEYWORDS

LH2 complex, B850 ring, static disorder, Hamiltonian, transfer integrals

ABSTRACT

Photosynthesis starts with the absorption of a solar photon by one of the light-harvesting (LH) pigmentprotein complexes and transferring excitation energy to the reaction center where charge separation is initiated. The geometric structure of some LH complexes is known in great detail, e.g. for LH2 complex of purple bacteria. Properties of such complex are strongly influenced by its interactions with environment. These interactions could be modeled by static and dynamic disorder. Four uncorrelated Gausian types of fluctuations (in transfer integrals, in radial positions of molecules on the ring, in angular positions of molecules on the ring and in directions of dipole moments of molecules) are taking into account. The influence of these types of static disorder on Hamiltonian of B850 ring from LH2 complex is investigated in present paper. Results obtained for different types of static disorder are discussed and compared.

Cite this paper

Pavel Herman, David Zapletal, Jaroslav Charvat. (2016) B850 Ring from Photosynthetic Complex LH2 – Influence of Static Disorder. International Journal of Biochemistry Research, 1, 27-34