Large-scale FRET simulations reveal the control parameters of phycobilisome light-harvesting complexes.

ABSTRACT: Phycobilisomes (PBS) are massive structures that absorb and transfer light energy to photochemical reaction centres. Among the range of light harvesting systems, PBS are considered to be excellent solutions for absorption cross-sections but relatively inefficient energy transferring systems. This is due to the combination of a large number of chromophores with intermediate coupling distances. Nevertheless, PBS systems persisted from the origin of oxygenic photosynthesis to present-day cyanobacteria and red algae, organisms that account for approximately half of the primary productivity in the ocean. In this study, we modelled energy transfer through subsets of PBS structures, using a comprehensive dynamic Hamiltonian model. Our approach was applied, initially, to pairs of phycobilin hexame

SUBMITTER: Dodson EJ 

PROVIDER: S-EPMC9709516 | biostudies-literature | 2022 Nov

REPOSITORIES: biostudies-literature