Close encounters of the transient kind: protein interactions in the photosynthetic redox chain investigated by NMR spectroscopy.

Plastocyanin and cytochrome c(6) function as electron shuttles between cytochrome f and photosystem I in the photosynthetic redox chain. To transfer electrons the partners form transient complexes, which are remarkably short-lived (milliseconds or less). Recent nuclear magnetic resonance studies have revealed details of the molecular interfaces found in… CONTINUE READING