Direct single-molecule measurements of phycocyanobilin photophysics in monomeric C-phycocyanin.

ABSTRACT: Phycobilisomes are highly organized pigment-protein antenna complexes found in the photosynthetic apparatus of cyanobacteria and rhodophyta that harvest solar energy and transport it to the reaction center. A detailed bottom-up model of pigment organization and energy transfer in phycobilisomes is essential to understanding photosynthesis in these organisms and informing rational design of artificial light-harvesting systems. In particular, heterogeneous photophysical behaviors of these proteins, which cannot be predicted de novo, may play an essential role in rapid light adaptation and photoprotection. Furthermore, the delicate architecture of these pigment-protein scaffolds sensitizes them to external perturbations, for example, surface attachment, which can be avoided by study in free s

SUBMITTER: Squires AH 

PROVIDER: S-EPMC5604012 | biostudies-literature | 2017 Sep

REPOSITORIES: biostudies-literature