XRCC5 Protein, Human, Recombinant (His & MBP)XRCC5, X-ray repair cross-complementing protein 5, X-ray repair complementing defective repair in Chinese hamster cells 5 (double-strand-break rejoining), Thyroid-lupus autoantigen (TLAA), Nuclear factor IV, Lupus Ku autoantigen protein p86, Ku86, Ku80, G22P2, DNA repair protein XRCC5, CTC box-binding factor 85 kDa subunit (CTC85;CTCBF), ATP-dependent DNA helicase II 80 kDa subunit, ATP-dependent DNA helicase 2 subunit 2, 86 kDa subunit of Ku antigen