The domain within your query sequence starts at position 916 and ends at position 1385; the E-value for the RPT_1 domain shown below is 4.54e-18.

FYHQALPDGRLPQEASPAPADLNTGEPPMYLASCSVGVKPIIFYQQPMSDSQRTKGHKES
DVPGPTDQKTGIATVHSTSQSYIGRRTVSYQKEFPDLSEKALKVLGDVGSTEQKTQIPVV
SSALLHKEGPSAYQEDLPDLTEEPLQILGVSEEVSSSSYQRKLPDHIEVFLKSVGSGSAD
RKTGAQIVSSSREKSSGFHQQELPNTGGDAVDAFHPEPVVQEVRKVQTPGAPAGPSSSHF
HKEKLSDYQKASPHRDLTESSLKASTVPGLSDQKKKPAVSSGFCLHKEKHEISASALLNC
QTAELLTVTQRSCLHREDPAISTVIKPDDQKIPLPTTFHGSSDQKVKPVIFVQKQLRDRD
QSEDIPKISTVSEPTVVNTVLPVLLPGSYSHREKSDSFYPQELPDGHLTEVDLKVSSGLG
QADQISGLPTGIPGTYSHSEKHQLISEHVQELMDNLNSSESSCLSVDSMP

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