The domain within your query sequence starts at position 519 and ends at position 599; the E-value for the RPT_1 domain shown below is 1.18e-11.

DITEKQQKLNDTGKNVMINIPEEQQKLIDKRKDVMIDIPEQNAIPDNSQYQDQEQIVTLQ
ALFPSTETSENSMIDTSESQQ

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