Sequence alignment between 5kpf(A) and UniProt seq P00044 (CYC1_YEAST):

P00044 (CYC1_YEAST): Cytochrome c isoform 1 from Saccharomyces cerevisiae (strain ATCC 204508 / S288c)
                 10        20        30        40        50        60        70        80        90       100         
         ---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------
UniProt: MTEFKAGSAKKGATLFKTRCLQCHTVEKGGPHKVGPNLHGIFGRHSGQAEGYSYTDANIKKNVLWDENNMSEYLTNPKKYIPGTKMAFGGLKKEKDRNDLITYLKKACE
         .X.........................................................................................................X.
PDB seq: -AEFKAGSAKKGATLFKTRCLQCHTVEKGGPHKVGPNLHGIFGRHSGQAEGYSYTDANIKKNVLWDENNMSEYLTNPKKYIPGTKMAFGGLKKEKDRNDLITYLKKATE
          --------------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---
                       10        20        30        40        50        60        70        80        90       100