The domain within your query sequence starts at position 465 and ends at position 898; the E-value for the RPT_1 domain shown below is 2.74e-235.

MEVNIQVPSAKLEGELTLADKDVVAKDSKFKMPKFKMPSFGVSAPGKPSLEASLEVGAPK
VEADVAPPQVQGDLKTPDLSVQLPSADLELKAGQVGVKLPEGQLPEAELPAAQAAAAAGA
GLKGHLPKVQMPSLKMPKVDLKGPHVDLKGPKVDVKGAKGEVSAPDLEVSLPGVEVDIQA
PGAKLEGELALADKDVAAKDSKFKMPKFKMPSFGVSAPGKPSLEASLEVGAPKVEADVAP
PQVQGDLKTPDLSVQLPSADLELKAGQVGVKLPEGQLPEAELPAAQAAAAAGAGLKGHLP
KVQMPSLKMPKVDLKGPHVDLKGPKVDVKGAKGEVSAPDLEVSLPGVEVDIQAPGAKLEG
ELALADKDVAAKDSKFKMPKFKMPSFGVSAPGKPSLEASLEVGAPKVEADVAPPLSVQLP
SADLELKAGQVGVK

This is a significant internal repeat in the query protein sequence, as detected by the Prospero program.