The domain within your query sequence starts at position 576 and ends at position 655; the E-value for the 2dbh domain shown below is 5e-48.

FITKEKKDTVLRQVRLDPCDLQPIFDDMLHILNPEELRVIEEIPQAEDKLDRLFEIIGVK
SQEASQTLLDSVYSHLPDLL

This is a PDB domain - please see the PDBSUM entry of 2dbh for further annotation