The domain within your query sequence starts at position 189 and ends at position 380; the E-value for the 4ltb domain shown below is 7e-69.

TLSQASADLEYKLRNKLTIMHSHINGATKALEDVRSKQQCVQDSMKRKMEQLRQEYMEMK
AVIDAAETSSLRKLKEEEKRVYGKFDTIYQVLVKKKSEMQKLKAEVELIMDKGDEFEFLE
KAAKLQGESTKPVYIPKIDLDHDLIMGIYQGAADLKSELKHSIKKLQKKSEEHNGSGNKG
DQTQSTFKPVQP

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