Site-directed mutagenesis of PsaA residue W693 affects phylloquinone binding and function in the photosystem I reaction center of Chlamydomonas reinhardti

Research has been conducted on the phylloquinone secondary electron acceptor A (sub)1. The environment of this acceptor within the photosystem I reaction center has been investigated via site-directed mutagenesis of tryptophan residues in the Chlamydomonas reinhardtii PsaA sumunit.