The domain within your query sequence starts at position 1974 and ends at position 2293; the E-value for the 3dyj domain shown below is < 1e-12.

GTQACITAASAVSGIIADLDTTIMFATAGTLNREGAETFADHREGILKTAKVLVEDTKVL
VQNAAGSQEKLAQAAQSSVATITRLADVVKLGAASLGAEDPETQVVLINAVKDVAKALGD
LISATKAAAGKVGDDPAVWQLKNSAKVMVTNVTSLLKTVKAVEDEATKGTRALEATTEHI
RQELAVFCSPEPPAKTSTPEDFIRMTKGITMATAKAVAAGNSCRQEDVIATANLSRRAIA
DMLRACKEAAFHPEVAPDVRLRALHYGRECANGYLELLDHVLLTLQKPNPDLKQQLTGHS
KRVAGSVTELIQAAEAMKGT

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