>sp|P0A420|PSAD_THEVB Photosystem I reaction center subunit II OS=Thermosynechococcus vestitus GN=psaD MTTLTGQPPLYGGSTGGLLSAADTEEKYAITWTSPKEQVFEMPTAGAAVMREGENLVYFA RKEQCLALAAQQLRPRKINDYKIYRIFPDGETVLIHPKDGVFPEKVNKGREAVNSVPRSI GQNPNPSQLKFTGKKPYDP