The domain within your query sequence starts at position 1145 and ends at position 1588; the E-value for the RPT_1 domain shown below is 2.74e-235.

VEVDIQAPGAKLEGELALADKDVAAKDSKFKMPKFKMPSFGVSAPGKPSQEASLEVGAPK
VEADVAPPQVQGDLKTPDLSVQLPSADLDLKAGQVGVKLPEGQLPEAELPAAQAAAAAGA
GLKGHLPKVQMPSLKMPKVDLKGPHVDLKGPKVDVKGAKGEVSAPDLEVSLPGVEVDIQA
PGAKLEGELALADKDVAAKDSKFKMPKFKMPSFGVSAPGKPSLEASLEVGAPKVEADVAP
PQVQGDLKTPDLSVQLPSADLELKAGQVGVKLPEGQLPEAELPAAQAAAAAGAGLKGHLP
KVQMPSLKMPKVDLKGPHVDLKGPKVDVKGAKGEVSAPDLEVSLPGVEVDIQAPGAKLEG
ELALADKDVAAKDSKFKMPKFKMPSFGVSAPGKPSLEASLEVGAPKVEADVAPPQVQGDL
KTPDLSVQLPSADLELKAGQVGVK

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