The domain within your query sequence starts at position 37 and ends at position 106; the E-value for the 3txn domain shown below is 1e-22.

ENDEEAVQVKEQSILELGSLLAKTGQAAELGGLLKYVRPFLNSISKAKAARLVRSLLDLF
LDMEAATGQE

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