The domain within your query sequence starts at position 1 and ends at position 52; the E-value for the 4j8g domain shown below is 2e-23.

MLTKFETKSARVKGLSFHPKRPWILTSLHNGVIQLWDYRMCTLIDKFDEHDG

This is a PDB domain - please see the PDBSUM entry of 4j8g for further annotation