Sequence alignment between 2exd(A) and UniProt seq O58204 (O58204_PYRHO):

O58204 (O58204_PYRHO): NfeD-like C-terminal domain-containing protein from Pyrococcus horikoshii (strain ATCC 700860 / DSM 12428 / JCM 9974 / NBRC 100139 / OT-3)
                 10        20        30        40        50        60        70        80        90       100       110       120       130       140     
         ---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---
UniProt: MSMGIAFPLSLLILGLLIILLDMMISAFITPIGIAFSVLGLLLLFNVNFYLSFIVSLISAVIAYMAFARVVRRETTDIGGGKYTFELKGKVGKVVKIAEDHYLVEVEGDKWIAYSDEKLSLGDRVMVVDVDGLKLKVKRIPPQ--
PDB seq: -----------------------------------------------------------------------RRETTDIGGGKYTFELKGKVGKVVKIAEDHYLVEVEGDKWIAYSDEKLSLGDRVMVVDVDGLKLKVKRIPPQLE
                                                                                --------+---------+---------+---------+---------+---------+---------+-----
                                                                                       80        90       100       110       120       130       140