The domain within your query sequence starts at position 153 and ends at position 581; the E-value for the 4g26 domain shown below is 1e-9.

DVAKSLLAWVAAKNNGIVGYNLLVKYLYLCVFHKQTSEVIDVYEIMKAKYKSLESGGYTL
LIRGLIHSDRWRESLLLLEDIKKVMVPSKKNYGDCIQGALLHQDVNTAWNLYQELIGHNL
IPPLETLKAFFDYGKDINDDHYSDKLLDILLYLRNNQLYPGESFAHSIKTWFESIPGRQW
KGQFTTIQKSGQCSGCGRTIEPIHLSPEEYEFLKEKIMRDVIDGGDQYKKTTPQELKRFE
SFVNSCPPFDIVIDGLNVAKMFPKGRESQNLLGVVSQLAQQNLQLLVLGRKHMLRPSSQW
RKEEMEQVRKQAHCFFADNISEDDPFLLYATLNSGNHCKFITKDLLRDHKACLPDARTQR
LFFKWQQGHQLAIMKGFQKSKLTFQHILSYDTVVQRTGDSWHIPYDEDLVQRSSCEVPTK
WLCLQRKTP

This is a PDB domain - please see the PDBSUM entry of 4g26 for further annotation