The domain within your query sequence starts at position 43 and ends at position 144; the E-value for the 3a4v domain shown below is 3e-18.

VLITGGLGQLGVGLANLLRKRFGKDNVILSDIRKPPAHVFHSGLHNVLDVAAEYNVRLFV
PSTIGAFGPTSPRNPAPDLCIQRPRTIYGVSKVHTELMGEIF

This is a PDB domain - please see the PDBSUM entry of 3a4v for further annotation