Sequence alignment between 4xhm(A) and UniProt seq O28984 (O28984_ARCFU):

O28984 (O28984_ARCFU): Thioredoxin (Trx-3) from Archaeoglobus fulgidus (strain ATCC 49558 / DSM 4304 / JCM 9628 / NBRC 100126 / VC-16)
                 10        20        30        40        50        60        70        80        90       100       110       120       130    
         ---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+----
UniProt: MDELELIRQKKLKEMMQKMSGEEKARKVLDSPVKLNSSNFDETLKNNENVVVDFWAEWCMPCKMIAPVIEELAKEYAGKVVFGKLNTDENPTIAARYGISAIPTLIFFKKGKPVDQLVGAMPKSELKRWVQRNL
         ...........................................................X..........................................................................
PDB seq: ------------------------ARKVLDSPVKLNSSNFDETLKNNENVVVDFWAEWCHPCKMIAPVIEELAKEYAGKVVFGKLNTDENPTIAARYGISAIPTLIFFKKGKPVDQLVGAMPKSELKRWVQRNL
                                 -----+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+----
                                     30        40        50        60        70        80        90       100       110       120       130