The domain within your query sequence starts at position 73 and ends at position 196; the E-value for the d1tbga_ domain shown below is 3e-5.

RIWQERAKFRAKSVITWKSPEQPASIKLLTTLPEMHIAVTVDIQSTIKLWDCHNREALAT
NNLKSPCKSLKAVFTKDGPIVLIGDTLGNIHIFRIPDLYLISTVNVLPYGFDGIYCSPQK
KWVL

This is a SCOP domain - please see the SCOP entry of d1tbga_ for further annotation