The domain within your query sequence starts at position 1532 and ends at position 1619; the E-value for the 1x4r domain shown below is 9e-53.

KSIRLAKEKESQADYISTYVEWQYIDKNITQCFDKMTNMKLEVAWKAKKKDTVVQIHNQD
FTVDLSTNTATAPQGQTFTVQRLVKAEA

This is a PDB domain - please see the PDBSUM entry of 1x4r for further annotation