The domain within your query sequence starts at position 386 and ends at position 543; the E-value for the 3db5 domain shown below is 2e-98.

DHGPVTFVPDTPIESRARLSLPKQLVLRQSIVGTDVGVWTAETIPVRTCFGPLIGQQSHS
LEVAEWTDKAVNHVWKIYHTGVLEFCIITTDENECNWMMFVRKARNREEQNLVAYPHDGK
IYFCTSQDIPPESELLFYYSRNYAQQIGVPEHPDVHLC

This is a PDB domain - please see the PDBSUM entry of 3db5 for further annotation