The domain within your query sequence starts at position 728 and ends at position 788; the E-value for the 4irv domain shown below is 5e-25.

KKLSNAPRPLKKRSSITEPEGPNGPNIQKLLYQRTTIAAMETISVPSHPSKSPGSVTVNP
E

This is a PDB domain - please see the PDBSUM entry of 4irv for further annotation