Sequence alignment between 4xk8(J) and UniProt seq A4GGC6 (PSAJ_PHAVU):

A4GGC6 (PSAJ_PHAVU): Photosystem I reaction center subunit IX from Phaseolus vulgaris 
                 10        20        30        40    
         ---------+---------+---------+---------+----
UniProt: MRDLKTYLSVAPVVSTLWFGALAGLLIEINRFFPDALIFPFFSF
PDB seq: MRDLKTYLSVAPVVSTLWFGALAGLLIEINRFFPDALIF-----
         ---------+---------+---------+---------     
                 10        20        30