The domain within your query sequence starts at position 1 and ends at position 171; the E-value for the 3p8c domain shown below is 1e-86.

MPLVKRNIEPRHLCRGALPEGVTSELECVTNSTLAAIIRQLSSLSKHAEDIFGELFNEAN
NFYIRANSLQDRIDRLAVKVTQLDSTVEEVSLQDINMKKAFKSSTIQDQQVVSKNSIPNP
VADIYNQSDKPPPLSILTPYRDDKKDGLKFYTDPSYFFDLWKEKMLQDTED

This is a PDB domain - please see the PDBSUM entry of 3p8c for further annotation