The domain within your query sequence starts at position 1 and ends at position 191; the E-value for the 3cou domain shown below is 4e-80.

MATPTKIDLEDALALGPSWRHLCHVMLYAPDPGVLFGGRILLNYAVLMSMRFDGRLGFPG
GFVDDRSPSLEEGLNKELLKKLGEGVSTFSILSTDYRSSLAESKSKVVAHFYVKCLTLEQ
LQAVEAGAPQAKDHGLEVLGLVRVPLYTLRDGVGGLPAFLENSFIGVAREQLLEALQDLG
ILAPETASDLK

This is a PDB domain - please see the PDBSUM entry of 3cou for further annotation