The domain within your query sequence starts at position 44 and ends at position 157; the E-value for the 4kng domain shown below is 6e-54.

QKAVIRVIPLKMDPTGKLNLTLEGVFAGVAEVTPAEGKLMQARMAGERGANAVLFDITED
RSAAEQLQQPLGLTKPVVLIWGSDAAKLMEFVYKNRKAYVWIELKEPPAGANYD

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