The domain within your query sequence starts at position 798 and ends at position 999; the E-value for the 4j8s domain shown below is 1e-137.

AVNNDPFVQRKLGTSGLNQPTFQQTDLSQVWPEANQHFSKEIDDEANSYFQRIYNHPPHP
TMSVDEVLEMLQRFKDSTIKREREVFNCMLRNLFEEYRFFPQYPDKELHITACLFGGIIE
KGLVTYMALGLALRYVLEALRKPFGSKMYYFGIAALDRFKNRLKDYPQYCQHLASISHFM
QFPHHLQEYIEYGQQSRDPPVK

This is a PDB domain - please see the PDBSUM entry of 4j8s for further annotation