Sequence alignment between 1bf4(A) and UniProt seq P13123 (DN7D_SULAC):

P13123 (DN7D_SULAC): DNA-binding protein 7d from Sulfolobus acidocaldarius (strain ATCC 33909 / DSM 639 / JCM 8929 / NBRC 15157 / NCIMB 11770) 
                 10        20        30         40        50        60      
         ---------+---------+---------+-------- -+---------+---------+------
UniProt: MVKVKFKYKGEEKEVDTSKIKKVWRVGKMVSFTYDDNG-KTGRGAVSEKDAPKELLDMLARAEREKK
         .XX.............X............X.....XX.X.................X..XXX.XX..
PDB seq: -ATVKFKYKGEEKEVDISKIKKVWRVGKMISFTYDEGGGKTGRGAVSEKDAPKELLQML---EKQKK
          --------+---------+---------+---------+---------+---------   +----
                 10        20        30        40        50           60