Sequence alignment between 2d16(A) and UniProt seq O59581 (O59581_PYRHO):

O59581 (O59581_PYRHO): Adenosine monophosphate-protein transferase from Pyrococcus horikoshii (strain ATCC 700860 / DSM 12428 / JCM 9974 / NBRC 100139 / OT-3) 
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         ---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+--
UniProt: MVRIEVIDIEKPEGVEVIIGQGNFSIFTVDDLARALLTAVPGIKFGIAMNEAKPQLTRYTGNDPELEALAAKNAVKIGAGHVFVILMKNAYPINVLNTIKNHPAVAMIYGASENPFQVIVAETELGRAVIGVVDGKAANKIETDEQKKERRELVEKIGYKID
PDB seq: MVRIEVIDIEKPEGVEVIIGQGNFSIFTVDDLARALLTAVPGIKFGIAMNEAKPQLTRYTGNDPELEALAAKNAVKIGAGHVFVILMKNAYPINVLNTIKNHPAVAMIYGASENPFQVIVAETELGRAVIGVVDGKAANKIETDEQKKERRELVEKIGYKID
         ---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+--
                 10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160