Anti-DDB2 (Damage-specific DNA Binding Protein 2, DNA Damage-binding Protein 2, DDB p48 Subunit, DDB

Damaged DNA-Binding Protein (DDB) consists of a 127kD subunit (DDB1) and a 48kD subunit (DDB2) that contribute to the formation of the UV-damaged DNA-binding protein complex (UV-DDB) (1-3). In conjuction with CUL4A and ROC-1, the UV-DDB complex forms, an E3 ubiquitin ligase that recognizes a broad spectrum of DNA lesions such as cyclobutane pyrimidine dimers, 6-4 photoproducts, apurinic sites and short mismatches. The complex polyubiquitinates components of the nucleotide excision repair pathway (4-6). Loss of DDB activity has been identified in a subset of xeroderma pigmentosum complementation group E (XP-E) patients and has been linked to the deficient repair of cyclobutane pyrimidine dimers in cells derived from these patients (7-10). Applications: Suitable for use in Western Blot. Other applications not tested. Recommended Dilution: Western Blot: 1:1000 Incubate membrane with diluted antibody in 5% BSA, 1X TBS, 0.1% Tween-20 at 4°C with gentle shaking, overnight., Optimal dilutions to be determined by the researcher. Storage and Stability: May be stored at 4°C for short-term only. Aliquot to avoid repeated freezing and thawing. Store at -20°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.