The domain within your query sequence starts at position 1 and ends at position 219; the E-value for the 4n78 domain shown below is 4e-90.

MPLVTRNIEPRHLCRQTLPSDTSELECRTNITLANVIRQLGSLSKYAEDIFGEICTQASA
FASRVNSLAERVDRVQVKVTQLDPKEEEVSLQGINTRKAFRSSTTQDQKLFDRNSLPVPV
LETYNSCDAPPPLNNLSPYRDDGKEALKFYTNPSYFFDLWKEKMLQDTKDIMKEKRKHRK
EKKDNPNRGNVNPRKIKTRKEEWEKMKMGQEFVESKERL

This is a PDB domain - please see the PDBSUM entry of 4n78 for further annotation