Sequence alignment between 2kv7(A) and UniProt seq P41784 (PRGI_SALTY):

P41784 (PRGI_SALTY): SPI-1 type 3 secretion system needle filament protein from Salmonella typhimurium (strain LT2 / SGSC1412 / ATCC 700720)
                    10        20        30        40        50        60        70        80
         ---------+---------+---------+---------+---------+---------+---------+---------+
UniProt: ---MATPWSGYLDDVSAKFDTGVDNLQTQVTEALDKLAAKPSDPALLAAYQSKLSEYNLYRNAQSNTVKVFKDIDAAIIQNFR
         ...................................................................X.X.............
PDB seq: GSHMATPWSGYLDDVSAKFDTGVDNLQTQVTEALDKLAAKPSDPALLAAYQSKLSEYNLYRNAQSNTAKAFKDIDAAIIQNFR
         ---------+---------+---------+---------+---------+---------+---------+---------+---
                 10        20        30        40        50        60        70        80