Removal of stable tyrosine radical D+ affects the structure or redox properties of tyrosine Z in manganese-depleted photosystem II particles from Synechocystis 6803.


Photosystem II contains two redox-active tyrosines, D and Z. To understand the function of the dark stable tyrosine radical, D+, we have characterized two site-directed mutations at the D tyrosine residue in the transformable cyanobacterium, Synechocystis sp. PCC 6803, through the use of purified photosystem II particles (Noren, G. H., Boerner, R. J., and… (More)