Sequence alignment between 1jb0(E) and UniProt seq P0A423 (PSAE_THEEB):

P0A423 (PSAE_THEEB): Photosystem I reaction center subunit IV from Thermosynechococcus vestitus (strain NIES-2133 / IAM M-273 / BP-1) 
                 10        20        30        40        50        60        70      
         ---------+---------+---------+---------+---------+---------+---------+------
UniProt: MVQRGSKVKILRPESYWYNEVGTVASVDQTPGVKYPVIVRFDKVNYTGYSGSASGVNTNNFALHEVQEVAPPKKGK
PDB seq: -VQRGSKVKILRPESYWYNEVGTVASVDQTPGVKYPVIVRFDKVNYTGYSGSASGVNTNNFALHEVQEVA------
          ---------+---------+---------+---------+---------+---------+---------      
                  10        20        30        40        50        60