The domain within your query sequence starts at position 149 and ends at position 555; the E-value for the RPT_1 domain shown below is 1.92e-17.
KKANSPAGFQPSYGSEEGTNMGSWYRARPVPKGEAYENSDFKWADKPSGSPSFWNRDEAS
TRFRPRKSMKANNRFRHMAKQEANTMPRHKNKQEFYNISSSDSEDESGKTPWFWPKDKTK
VWSKPKEEPNSRSWFRSKKEVRVESTSGSECENPTKSLFWSGEEAKSRSKPRARKGVNMR
ARQQAKREACSDAMSGAIDTNKKESWFLPEEKANVFSKSKTKKEPRTRAVPKEEVKTKAR
ASTKQEARPEEEVLVGAWFWDTQESTMADRISIKTTFVEEEPIVGDWFWSEEEASVDSET
CHTSRPRAKEEQVSSFCLGSGKKSSMESGPKATSKSMPVAKEDEVVIGSWFWADDEEINL
QADDESIFGSWFWGTGENSLRSVGVNCEKMPKAGEKEVTDSWFWAGD
This is a significant internal repeat in the query protein sequence, as detected by the Prospero program.