The domain within your query sequence starts at position 219 and ends at position 436; the E-value for the 3kys domain shown below is 1e-153.
RSIGTTKLRLVEFSAFLEQQRDPDSYNKHLFVHIGHANHSYSDPLLESVDIRQIYDKFPE KKGGLKELFGKGPQNAFFLVKFWADLNCNIQDDAGAFYGVSSQYESSENMTVTCSTKVCS FGKQVVEKVETEYARFENGRFVYRINRSPMCEYMINFIHKLKHLPEKYMMNSVLENFTIL LVVTNRDTQETLLCMACVFEVSNSEHGAQHHIYRLVKD