The domain within your query sequence starts at position 1 and ends at position 114; the E-value for the 3txn domain shown below is 2e-50.

MEAATGQEVELCLECIEWAKSEKRTFLRQALEARLVSLYFDTKRYQEALHLGSQLLRELK
KMDDKALLVEVQLLESKTYHALSNLPKARAALTSARTTANAIYCPPKLQATLDM

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