The domain within your query sequence starts at position 74 and ends at position 335; the E-value for the RPT_2 domain shown below is 9.44e-7.

AAGLLQPSEQTAGDKDMGSFSVTSSEDAFSGVFGIMDAAKGMVQGGLGATQSALVGTKEA
VSGGVMGAVGVAKGLVKGGLDTSKNVLTNTKDTVTTGVMGAANMAKGTVQTGLDTTKSVV
MGTKDTVATGLAGAVNVAKGTIQGGLDTTKSVVMGTKDTVTTGLTGAVNVAKGVVQGGLD
TTKSVVMGTKDTVTTGLTGAMNVAKGTAQMGIDTSKTVLTGTKDTVCAGATGAINVAKGA
AQGGLDTTKSVLIGTKDTVTTG

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