The domain within your query sequence starts at position 1 and ends at position 143; the E-value for the 4ag4 domain shown below is 3e-73.
MDWKDRWGQEVISGNEDPGGVVLKDLGPPMVARLVRFYPRADRVMSVCLRVELYGCLWRD GLLSYTAPVGQTMQLSEVMVHLNDSTYDGYTAGGLQYGGLGQLADGVVGLDDFRQSQELR VWPGYDYVGWSNQSFPTGYVEME