Sequence alignment between 6hqb(K) and UniProt seq P74564 (PSAK2_SYNY3):

P74564 (PSAK2_SYNY3): Photosystem I reaction center subunit PsaK 2 from Synechocystis sp. (strain ATCC 27184 / PCC 6803 / Kazusa)
                 10        20        30        40        50        60        70        80        90
         ---------+---------+---------+---------+---------+---------+---------+---------+---------+
UniProt: MFNTALLLAQASPTTAGWSLSVGIIMCLCNVFAFVIGYFAIQKTGKGKDLALPQLASKKTFGLPELLATMSFGHILGAGMVLGLASSGIL
PDB seq: -----------------WSLSVGIIMCLCNVFAFVIGYFAIQKTGKGKDLALPQLASKKTFGLPELLATMSFGHILGAGMVLGLASS---
                          --+---------+---------+---------+---------+---------+---------+-------   
                           20        30        40        50        60        70        80