The domain within your query sequence starts at position 1615 and ends at position 1935; the E-value for the RPT_1 domain shown below is 1.02e-41.
RHYFIAAVERLWDYGMSTSHVLRNRYQSDNVPQFKKVVFQEFTDGSFSQPLYRGELNEHL
GLLGPYIRAEVEDNIMVTFKNQASRPYSFYSSLISYKEDQRGEEPRRNFVKPNETKIYFW
KVQHHMAPTEDEFDCKAWAYFSDVDLERDMHSGLIGPLLICHANTLNPAHGRQVSVQEFA
LLFTIFDETKSWYFTENVKRNCKTPCNFQMEDPTLKENYRFHAINGYVMDTLPGLVMAQD
QRIRWYLLSMGNNENIQSIHFSGHVFTVRKKEEYKMAVYNLYPGVFETLEMIPSRAGIWR
VECLIGEHLQAGMSTLFLVYS
This is a significant internal repeat in the query protein sequence, as detected by the Prospero program.