The domain within your query sequence starts at position 343 and ends at position 665; the E-value for the RPT_1 domain shown below is 9.82e-8.
PPCTTKDYFQIHTPCDEEGKTQIMYKWIEPKICREDLTDAIRLPPSGEKKDCPPCNPGFY
NNGSSSCHPCPPGTFSDGTKECKSCPAGTEPALGFEYKWWNVLPANMKTSCFNVGNSKCD
GMNGWEVAGDHIRSGAGGSDNDYLILNLHIPGFKPPTSMTGATGSELGRITFVFETLCSA
DCVLYFMVDINRKSTNVVESWGGTKEKQAYTHVIFKNATFTFTWAFQRTNQGQDNRRFIN
DVVKIYSITATNAVDGVAASCRACALGSEQSASSCVPCPPGHYIEKETNQCKECPADTYL
SIHQVYGKEACIPCGPGSKSTQD
This is a significant internal repeat in the query protein sequence, as detected by the Prospero program.