The domain within your query sequence starts at position 2101 and ends at position 2501; the E-value for the RPT_1 domain shown below is 3.44e-48.
TSVPVIYTTSAITQTKTSFSTDRTSTSTSAPHLSETSAVTAHQSTPTAVSANSIKPTMSS
TGTPVVHTTSGTTSSPQTPRTTHPSTTVAVSGTVHTTGLPSGTSVHTTTNFPTHSGPQSS
LSTHLPLFSTLSVTPTTEGLNTPTSPHSLSAASTSMPLMTVLPTTLEGTRPPHTSVPVTY
TTTAATQTKSSFSTDRTSTPHLSQSSTVTPTQPTPIPATTNSPMTTVGLTGTPVVHTPSG
TSSIAHTPHTTHSLPTAASSSTTLSTAPQFRTSEQSTTTFPTPSAPQTSLVTSLPPFSTS
SVSPTDEIHITSTNPHTVSSVSMSRPVSTILQTTIEVTTPPNTSTPVTHSTSATTEAQGS
FSTERTSTSYLSHPSSTTVHQSTAGPVITSIKSTMGVTGTP
This is a significant internal repeat in the query protein sequence, as detected by the Prospero program.