Sequence alignment between 9is4(Z) and UniProt seq P92276 (PSBZ_CHLRE):

P92276 (PSBZ_CHLRE): Photosystem II reaction center protein Z from Chlamydomonas reinhardtii 
                 10        20        30        40        50        60  
         ---------+---------+---------+---------+---------+---------+--
UniProt: MTSILQVALLALIFVSFALVVGVPVVFATPNGWTDNKGAVFSGLSLWLLLVFVVGILNSFVV
PDB seq: MTSILQVALLALIFVSFALVVGVPVVFATPNGWTDNKGAVFSGLSLWLLLVFVVGILNSFV-
         ---------+---------+---------+---------+---------+---------+- 
                 10        20        30        40        50        60