>sp|Q31ML0|PSB28_SYNE7 Photosystem II reaction center Psb28 protein OS=Synechococcus elongatus GN=psb28 MSAAIQFTRGIDEPVVPDVRLTRSRDGQNGTATFYFDEPQALVGEVRQDITGMYLLDDEG ELATREVKAKFINGQPAGLEAVYLMRSPEEWDRFMRFMQRYAEANGLGFTEA