Sequence alignment between 2erz(I) and UniProt seq P61926 (IPKA_RABIT):

P61926 (IPKA_RABIT): cAMP-dependent protein kinase inhibitor alpha from Oryctolagus cuniculus 
                 10        20        30        40        50        60        70      
         ---------+---------+---------+---------+---------+---------+---------+------
UniProt: MTDVETTYADFIASGRTGRRNAIHDILVSSASGNSNELALKLAGLDINKTEGEEDAQRSSTEQSGEAQGEAAKSES
PDB seq: -----TTYADFIASGRTGRRNAIHD---------------------------------------------------
              -----+---------+----                                                   
                  10        20