>pdb|7UEB|B Chain B, Photosystem P840 reaction center iron-sulfur protein MAEPVENKNQAPAPGAKVPPKGAPAAPKAGAPAAPKGPVAPKAGAPAAKTGASAAKQAGKPRLASLGVTLGRSGVRQESA LPYVKPKAVPPPKPAAPAAKGAPAPKGAPAAPAAKAAPGAPVAKAAPKAKKHYFIIENLCVGCGLCLDKCPPKVNAIGYK FYGDVQEGGFRCYIDQAACISCSACFSGDECPSGALIEVLPDGEVLDFSYTPPERLDFDLRFLHRFHREAR