The domain within your query sequence starts at position 178 and ends at position 666; the E-value for the 3fga domain shown below is 8e-6.

PLVSKAQLSQTVQSRLVSCKILGKITNKFDAHSIKREILPLVKSLCQDVEYEVRSCMCRQ
LENIAQGIGAELTKNVVLPELIELSRDESGSVRLAAFETLVNMLDMFDTDDRSQTILPLV
KSFCEKSFKADESILISLSFHLGKLCHGLYGIFTPDQHLRFLEFYKKLCTLGLQQENGHN
ESQIPSQIVEQEKKYTSVRKNCAYNFPAMIVFVDPKNFHMELYSTFFCLCHDPEVPVRHT
IAICFYEVSKLLNSGVHLIHKELITLLQDESLEVLDALINHLPEILELMSTGGENSVQEN
KFSSVPDLIPALTAAEQRAAASLKWRTHEKLLQKYTCLPHIISSDQIYYRFLQRMFTIMM
TNNVLPVQRAAARTLCIFLRYNRKQEQRHEVIQKLIEQLGQGKSYWNRLRFLDTCEFIIE
IFSRSFFCKYFFLPVIELTHDPVANVRMKLCYLLPKVKSALKIPADMHLLQQLEMCVRKL
LCQEKDKDV

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