Sequence alignment between 1ca5(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: MVKVKFKYKGEEKEVDTSKIKKVWRVGKMVSFTYDDNGKTGRGAVSEKDAPKELLDMLARAEREKK
PDB seq: -VKVKFKYKGEEKEVDTSKIKKVWRVGKMVSFTYDDNGKTGRGAVSEKDAPKELLDMLARAEREKK
          --------+---------+---------+---------+---------+---------+------
                 10        20        30        40        50        60