The domain within your query sequence starts at position 515 and ends at position 721; the E-value for the 1u31 domain shown below is 1e-145.
MNRSLANVILGGYGTTSTAGGKPMEISGTHTEINLDNAVEMIREANSIVITPGYGLCAAK AQYPIADLVKMLTEQGKKVRFGIHPVAGRMPGQLNVLLAEAGVPYDIVLEMDEINSDFPD TDLVLVIGANDTVNSAAQEDPNSIIAGMPVLEVWKSKQVIVMKRSLGVGYAAVDNPIFYK PNTAMLLGDAKKTCDALQAKVRESYQK