The domain within your query sequence starts at position 410 and ends at position 618; the E-value for the RPT_1 domain shown below is 7.79e-148.

KKGEGPQNQGKKGEAAQKQDKKIEGAQNQGKKPEGTSNQGKKGEGAQNQGKKGEGAQNQG
KKGEGAQNQGKKGEGAQNQGKKGEGAQNQGKKGEGAQNQGKKGEGAQNQGKKGEGPQNQA
KKGEGAQNQGKKGEGAQNQGKKGEGAQNQGKKAEGVQSQSKKGEGTQNQGKKGDGNPNQG
KKGEGASNQNRKTDTVANQGTKQEGVSNQ

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