The domain within your query sequence starts at position 1463 and ends at position 1515; the E-value for the 1byy domain shown below is 4e-29.

DNFNQQKKKFGGQDIFMTEEQKKYYNAMKKLGSKKPQKPIPRPLNKIQGIVFD

This is a PDB domain - please see the PDBSUM entry of 1byy for further annotation