Sequence alignment between 4i3c(A) and UniProt seq P0DM59 (UNAG_ANGJA):

P0DM59 (UNAG_ANGJA): Bilirubin-inducible fluorescent protein UnaG from Anguilla japonica
                 10        20        30        40        50        60        70        80        90       100       110       120       130         
         ---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------
UniProt: MVEKFVGTWKIADSHNFGEYLKAIGAPKELSDGGDATTPTLYISQKDGDKMTVKIENGPPTFLDTQVKFKLGEEFDEFPSDRRKGVKSVVNLVGEKLVYVQKWDGKETTYVREIKDGKLVVTLTMGDVVAVRSYRRATE
         ........................................................X..................................................................................
PDB seq: MVEKFVGTWKIADSHNFGEYLKAIGAPKELSDGGDATTPTLYISQKDGDKMTVKIEQGPPTFLDTQVKFKLGEEFDEFPSDRRKGVKSVVNLVGEKLVYVQKWDGKETTYVREIKDGKLVVTLTMGDVVAVRSYRRATE
         ---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------
                 10        20        30        40        50        60        70        80        90       100       110       120       130