>tr|A0A1B1TPA9|A0A1B1TPA9_9CHRO Photosystem I reaction center subunit IV OS=Picosynechococcus sp. PCC 7003 GN=psaE MAIERGSKVKILRKESYWYGDVGTVASIDKSGIIYPVIVRFNKVNYNGFSGSAGGLNTNN FAEHELEVVG