>sp|A2BR07|PSB28_PROMS Photosystem II reaction center Psb28 protein OS=Prochlorococcus marinus GN=psb28 MTSNKTAKIQFYEGTDEPVVPEIRLTRSKDGTTGQALFLFEKPQALSSITDGEITGMRMI DTEGEILTREVKVKFVDGEPIFLEAVYIWKNTPDFDRFMRFANSYAKSNGLGYSEKK