Structure of a biohybrid photosystem I-platinum nanoparticle solar fuel catalyst.

ABSTRACT: Biohybrid solar fuel catalysts leverage natural light-driven enzymes to produce valuable fuel products. One useful biological platform for such a system is photosystem I, a pigment-protein complex that captures sunlight and converts it into chemical energy with near unity quantum efficiency, which generates low potential reducing equivalents for metabolism. Realizing and understanding the molecular basis for an approach that utilizes those electrons and stores solar energy as a fuel is therefore appealing. Here, we report the 2.27-Å global resolution cryo-EM structure of a photosystem I complex with bound platinum nanoparticles that catalyzes light-driven H₂ production. The platinum nanoparticle binding sites and possible stabilizing interactions are described. Overall, the inve

SUBMITTER: Gisriel CJ 

PROVIDER: S-EPMC11535483 | biostudies-literature | 2024 Nov

REPOSITORIES: biostudies-literature