Sequence alignment between 1qw2(A) and UniProt seq Q9HIX0 (Q9HIX0_THEAC):

Q9HIX0 (Q9HIX0_THEAC): DUF1805 domain-containing protein from Thermoplasma acidophilum (strain ATCC 25905 / DSM 1728 / JCM 9062 / NBRC 15155 / AMRC-C165)
                       10        20        30        40        50        60        70        80        90      
         ---------+---------+---------+---------+---------+---------+---------+---------+---------+-----
UniProt: ------MMQIDSIEIGGKVYQFFKSDLGNAPLLFIKGSKGYAMCGYLNMETSNKVGDIAVRVMGVKTLDDMLSAKVVEASQEAQKVGINPGDVLRNVIDKL-
PDB seq: NYFQGHMMQIDSIEIGGKVYQFFKSDLGNAPLLFIKGSKGYAMCGYLNMETSNKVGDIAVRVMGVKTLDDMLSAKVVEASQEAQKVGINPGDVLRNVIDKLG
         ------+---------+---------+---------+---------+---------+---------+---------+---------+---------+-----
              20        30        40        50        60        70        80        90       100       110