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

This is a PDB domain - please see the PDBSUM entry of 4ag4 for further annotation