XRCC5, CT (X Ray Repair Complementing Defective Repair in Chinese Hamster Cells 5 (Double-strand-break Rejoining), X-ray Repair Cross-complementing Protein 5, 86kD Subunit of Ku Antigen, ATP Dependent DNA Helicase 2 Subunit 2, ATP-dependent DNA Helicase I

Eukaryotic cells contain an abundant nuclear protein, Ku, which was initially discovered as an autoantigen. Ku is a heterodimer of 70 and 80kD subunits which binds to DNA ends and other alterations in double-stranded DNA including hairpins, nicks and gaps. Ku plays a role in DNA repair as an essential subunit of DNA-dependent protein kinase (DNA-PK) that phosphorylates certain transcription factors (Sp1, Oct-1 and p53). Ku targets DNA-PK to DNA. The Ku/DNA-PK complex might provide a structural framework for holding broken chromosomes together during repair. Ku plays a role in many diverse processes including cell signaling, proliferation, DNA repair, replication, transcriptional activation and apoptosis.\n\nApplications:\nSuitable for use in Western Blot and Immunohistochemistry. Other applications not tested.\n\nRecommended Dilution:\nImmunohistochemistry (Formalin fixed paraffin embedded): 5ug/ml\nOptimal dilutions to be determined by the researcher.\n\nStorage and Stability:\nMay be stored at 4 degrees C for short-term only. Aliquot to avoid repeated freezing and thawing. Store at -20 degrees C. Aliquots are stable for at least 12 months. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.

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