>tr|A0A0A2B2B8|A0A0A2B2B8_PROMR Photosystem I reaction center subunit IV OS=Prochlorococcus marinus str. SB GN=psaE MAISRGDLVRVKRPESYWYNEIGKVASVDTSGIKYNCVVRFDKVNYAGISGTDGGANTNN FAESELEKA