The domain within your query sequence starts at position 255 and ends at position 407; the E-value for the 2kr0 domain shown below is 4e-78.

AASPTQPIQLSDLQSILATMNVPAWPGGSQQVDLASVLTPEIMAPILANADVQERLLPYL
PSGESLPQTADESQNTLTSPQFQQALGMFSAALASGQLGPLMSQFGLPAEAVEAANKGDV
EAFAKAMQNNAKSDPKEGDTKDKKDEEEDMSLD

This is a PDB domain - please see the PDBSUM entry of 2kr0 for further annotation