The domain within your query sequence starts at position 122 and ends at position 182; the E-value for the RPT_1 domain shown below is 5.18e-30.

SPPRRVRHDTPDTSPPRKARHDTPDPSPPRKARHDTPDTSPPRKARHDTPDPSPPRKARH
D

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