The domain within your query sequence starts at position 252 and ends at position 352; the E-value for the d1a26_1 domain shown below is 2e-19.

LSQEVSDLLEVIWTEALGHLENTLLKPVNSMSLNDVSKAEGILLLVKTALKNGDSPGQLQ
KTMAEFYRLLPHRHPASEEVNLRLLAQKEDLCQLVRDMVNV

This is a SCOP domain - please see the SCOP entry of d1a26_1 for further annotation