The domain within your query sequence starts at position 274 and ends at position 343; the E-value for the 3jsv domain shown below is 3e-25.

IDKLKEEAEQHKIVMETVPVLKAQADIYKADFQAERHAREKLVEKKEYLQEQLEQLQREF
NKLKVGCHES

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