The domain within your query sequence starts at position 715 and ends at position 813; the E-value for the d1myo__ domain shown below is 2e-15.

GMSLLHLAAAQGYARLIETLSQWRSVETGSLDLEQEVDPLNVDHFSCTPLMWACALGHLE
AAVLLFCWNRQALSIPDSLGRLPLSVAHSRGHVRLARCL

This is a SCOP domain - please see the SCOP entry of d1myo__ for further annotation