The domain within your query sequence starts at position 647 and ends at position 913; the E-value for the 3fga domain shown below is 3e-6.

CLRETYETLASDMQWKVRRTLAFSIHELAVILGDQLTAADLVPIFNGFLKDLDEVRIGVL
KHLHDFLKLLHIDKRREYLYQLQEFLVTDNSRNWRFRAELAEQLILLLELYSPRDVYDYL
RPIALNLCADKVSSVRWISYKLVSEMVKKLHTATPPTFGVDLINELVENFGRCPKWSGRQ
AFVFVCQTVIEDDCLPMDQFAVHLMPHLLTLANDRVPNVRVLLAKTLRQTLLEKEYFLAS
ASCHQEAVEQTIMALQMDRDSDVKYFA

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