The domain within your query sequence starts at position 336 and ends at position 616; the E-value for the 4egc domain shown below is 1e-163.

NPSPPPDSDLERVFVWDLDETIIVFHSLLTGSYAQKYGKDPPMAVTLGLRMEEMIFNLAD
THLFFNDLEECDQVHIDDVSSDDNGQDLSTYSFATDGFHAAASSANLCLPTGVRGGVDWM
RKLAFRYRRVKELYNTYKNNVGGLLGPAKRDAWLQLRAEIEGLTDSWLTNALKSLSIIST
RSNCVNVLVTTTQLIPALAKVLLYSLGGAFPIENIYSATKIGKESCFERIVSRFGTNITY
VVIGDGRDEEHAANQHNMPFWRISSHSDLLALHQALELEYL

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