The domain within your query sequence starts at position 2 and ends at position 51; the E-value for the d2mysb_ domain shown below is 6e-5.

KNRDGKMDKEETKDWILPSDYDHAEAEARHLVYESDQNKDGKLTKEEIVD

This is a SCOP domain - please see the SCOP entry of d2mysb_ for further annotation