Elucidating interprotein energy transfer dynamics within the antenna network from purple bacteria.

ABSTRACT: In photosynthesis, absorbed light energy transfers through a network of antenna proteins with near-unity quantum efficiency to reach the reaction center, which initiates the downstream biochemical reactions. While the energy transfer dynamics within individual antenna proteins have been extensively studied over the past decades, the dynamics between the proteins are poorly understood due to the heterogeneous organization of the network. Previously reported timescales averaged over such heterogeneity, obscuring individual interprotein energy transfer steps. Here, we isolated and interrogated interprotein energy transfer by embedding two variants of the primary antenna protein from purple bacteria, light-harvesting complex 2 (LH2), together into a near-native membrane disc, known as a nanodi

SUBMITTER: Wang D 

PROVIDER: S-EPMC10334754 | biostudies-literature | 2023 Jul

REPOSITORIES: biostudies-literature