The domain within your query sequence starts at position 1434 and ends at position 1496; the E-value for the RPT_1 domain shown below is 6.13e-7.

PQKLPSAPTKLHCPPSPHTENPPKSSTPHTPVQHGYLSPKPPSQHLGSPFRPHHSQSPQV
GTP

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