The domain within your query sequence starts at position 174 and ends at position 234; the E-value for the RPT_1 domain shown below is 5.18e-30.

SPPRKARHDTPDPSPPRRVRHDTPDLSPPRRVRHDTPDLSPPRRVRHDTPDPSPPRRVRH
D

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