The domain within your query sequence starts at position 1026 and ends at position 1091; the E-value for the RPT_2 domain shown below is 4.38e-6.

GSATAKKDNVLKPSKGPQEKVDGDREKSPRSEPPLKKAKEEATKIDSVKPSSSSQKDEKV
TGTPRK

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