The domain within your query sequence starts at position 1253 and ends at position 1612; the E-value for the RPT_1 domain shown below is 4.79e-19.

NLSKPLPQEQQPLQVKPAPFLRSRFKKPKPNLSRAALKRATIEAEHCVPGKKSEACKVEA
AMLQQDSDQAALSPQHNVPSLMASRENDKSGHEEEEEAAILPCTQTEKDASPPNSSEPKE
GSQLTPNQENGLLVPIGTPMMNTVTQETRQNVVQTTLPVRGRLQRPRPNVQKARQRQIVE
KGEARDIAKNEGPELQKDETRTCLTVANSSHIESGVAVDMSSRVSECQVSESQGHADPVE
NLSVNKASVVHEQMRHENKPYVPSPALLIRRRFQKAKPNLGGARRKDEQPGVEKGRTDES
TALTAEDHLLQKEDCDTQLSLQAREKADMPLEVSVRKECIHSEESGSDRNDAQPNAGPSE

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