The domain within your query sequence starts at position 282 and ends at position 361; the E-value for the 3n00 domain shown below is 2e-21.

PEPTMEDVISQVARAHREIFTYAHDKLGTSPGNFNANHASGSPSATTPHRWESQGCPSAP
NDNNLLAAQRHNEALNGLRQ

This is a PDB domain - please see the PDBSUM entry of 3n00 for further annotation