Sequence alignment between 2gbt(C) and UniProt seq P00441 (SODC_HUMAN):

P00441 (SODC_HUMAN): Superoxide dismutase [Cu-Zn] from Homo sapiens
                 10        20        30        40        50        60        70        80        90       100       110       120       130       140       150    
         ---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+----
UniProt: MATKAVCVLKGDGPVQGIINFEQKESNGPVKVWGSIKGLTEGLHGFHVHEFGDNTAGCTSAGPHFNPLSRKHGGPKDEERHVGDLGNVTADKDGVADVSIEDSVISLSGDHCIIGRTLVVHEKADDLGKGGNEESTKTGNAGSRLACGVIGIAQ
         ......X...............................................................XXXXXXXXXX...............................X.............XXXXXXXXXXXXXXXXX............
PDB seq: -ATKAVAVLKGDGPVQGIINFEQKESNGPVKVWGSIKGLTEGLHGFHVHEFGDNTAGCTSAGPHFNPLSR----------HVGDLGNVTADKDGVADVSIEDSVISLSGDHAIIGRTLVVHEKAD-----------------SRLACGVIGIAQ
          ---------+---------+---------+---------+---------+---------+---------          +---------+---------+---------+---------+----                 --------+---
                  10        20        30        40        50        60                  80        90       100       110       120                           150