DDBB; UV-DDB2; Xeroderma Pigmentosum Group E Protein; UV-Damaged DNA-Binding Protein 2; DDB p48 Subunit; Damage-specific DNA-binding protein 2

For Research Use Only. Not for use in diagnostic procedures.

Polyclonal

IgG

Rabbit

The antibody is a rabbit polyclonal antibody raised against DDB2. It has been selected for its ability to recognize DDB2 in immunohistochemical staining and western blotting.

Affinity Chromatography

Supplied as solution form in PBS, pH7.4 containing 0.02% NaN3, 50% glycerol.

200ug/ml (lot specific)

Store at 4 degree C for frequent use. Stored at -20 degree C to -80 degree C in a manual defrost freezer for one year without detectable loss of activity. Avoid repeated freeze-thaw cycles.

Manufactured in an ISO 9001:2008 and ISO 13485:2003 Certified Laboratory.

Manufactured in a lab with traceable raw materials. Bulk orders can typically be prepared to the customera??s specifications, please inquire.

Small volumes of anti-DDB2 antibody vial(s) may occasionally become entrapped in the seal of the product vial during shipment and storage. If necessary, briefly centrifuge the vial on a tabletop centrifuge to dislodge any liquid in the container`s cap. Certain products may require to ship with dry ice and additional dry ice fee may apply.

Western Blot (WB), Immunocytochemistry (ICC), Immunohistochemistry (IHC) Formalin/Paraffin, ELISA (EIA)

Western Blot: 1:50-400
Immunohistochemistry in formalin fixed frozen section: 1:50-500
Enzyme-linked Immunosorbent Assay: 1:100-200

Western Blot: Sample: Recombinant protein.

DAB staining on fromalin fixed paraffin- embedded Kidney tissue)

48,375 Da

damage specific DNA binding protein 2

DNA damage-binding protein 2

DNA damage-binding protein 2

DDB2: Required for DNA repair. Binds to DDB1 to form the UV- damaged DNA-binding protein complex (the UV-DDB complex). The UV- DDB complex may recognize UV-induced DNA damage and recruit proteins of the nucleotide excision repair pathway (the NER pathway) to initiate DNA repair. The UV-DDB complex preferentially binds to cyclobutane pyrimidine dimers (CPD), 6-4 photoproducts (6-4 PP), apurinic sites and short mismatches. Also appears to function as the substrate recognition module for the DCX (DDB1- CUL4-X-box) E3 ubiquitin-protein ligase complex DDB1-CUL4-ROC1 (also known as CUL4-DDB-ROC1 and CUL4-DDB-RBX1). The DDB1-CUL4- ROC1 complex may ubiquitinate histone H2A, histone H3 and histone H4 at sites of UV-induced DNA damage. The ubiquitination of histones may facilitate their removal from the nucleosome and promote subsequent DNA repair. The DDB1-CUL4-ROC1 complex also ubiquitinates XPC, which may enhance DNA-binding by XPC and promote NER. Isoform D1 and isoform D2 inhibit UV-damaged DNA repair. Component of the UV-DDB complex which includes DDB1 and DDB2. The UV-DDB complex interacts with monoubiquitinated histone H2A and binds to XPC via the DDB2 subunit. Component of the DCX (DDB1-CUL4-X-box) E3 ubiquitin-protein ligase complex DDB1-CUL4- ROC1 (also known as CUL4-DDB-ROC1 and CUL4-DDB-RBX1), which includes CUL4A or CUL4B, DDB1, DDB2 and RBX1. DDB2 may function as the substrate recognition module within this complex. The DDB1- CUL4-ROC1 complex may associate with the COP9 signalosome, and this inhibits the E3 ubiquitin-protein ligase activity of the complex. A large number of other DCX complexes may also exist in which an alternate substrate targeting subunit replaces DDB2. These targeting subunits are generally known as DCAF (DDB1- and CUL4-associated factor) or CDW (CUL4-DDB1-associated WD40-repeat) proteins. Isoform D1 and isoform D2 do not interact with DDB1. Expression is induced in response to treatment with IR or UV and this requires p53/TP53 activity. Ubiquitously expressed; with highest levels in corneal endothelium and lowest levels in brain. Isoform D1 is highly expressed in brain and heart. Isoform D2, isoform D3 and isoform D4 are weakly expressed. Belongs to the WD repeat DDB2/WDR76 family. 5 isoforms of the human protein are produced by alternative splicing.

Protein type: DNA repair, damage

Chromosomal Location of Human Ortholog: 2|2 E1

Cellular Component: cell junction; nucleoplasm; nucleus; protein complex

Molecular Function: damaged DNA binding; DNA binding; protein complex binding; ubiquitin-protein transferase activity

Biological Process: cellular response to DNA damage stimulus; DNA repair; protein autoubiquitination; protein polyubiquitination; pyrimidine dimer repair; response to UV

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