plastokyaninin
Plastocyanin is a small, copper-containing protein found in the thylakoid lumen of chloroplasts and in the cytoplasm of cyanobacteria. It plays a crucial role as an electron carrier in the photosynthetic electron transport chain, specifically in the transfer of electrons from the cytochrome b6f complex to photosystem I. This transfer is essential for the generation of ATP and NADPH, which are vital for carbon fixation during photosynthesis.
The molecule itself is characterized by its relatively low molecular weight and its prominent copper atom,
Plastocyanin's structure is highly conserved across a wide range of photosynthetic organisms, from cyanobacteria to higher