The domain within your query sequence starts at position 58 and ends at position 197; the E-value for the 4b3n domain shown below is 3e-19.

RGTSKAPHLKGMLQSFEVHMTLHARNNAVIAINKEKRQIQYRSYNTVPVSEIYHLGVLGY
PALSSGKHYWEVDISRSDAWLLGLNDGKCAQPQLHSKEEMGIKKKYHSHIKQNVTFQPKC
GYWVIGMKNSSVYNAFDECS

This is a PDB domain - please see the PDBSUM entry of 4b3n for further annotation