The domain within your query sequence starts at position 42 and ends at position 142; the E-value for the 3kx2 domain shown below is 7e-19.

CEDLELNPFDGLPYSSRYYKLLKEREELPIWKEKYSFMESLLQNQVVVVSGDSKCGKSSQ
HGGVICTQAHKQTAVQLALRVADEMDVNIGHEVGYVIPFEN

This is a PDB domain - please see the PDBSUM entry of 3kx2 for further annotation