Rabbit polyclonal DDB2 antibody (A1848)


Reactivity: Human,Mouse,Rat
Applications: WB,IHC,IF
Conjugation: Unconjugated
Supplier: ABclonal Inc.

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Rabbit polyclonal DDB2 antibody (A1848)

Supplier: ABclonal Inc.

Recommended applications: WB,IHC,IF

Recommended dilution:

WB 1:500 – 1:2000 IHC 1:50 – 1:200 IF 1:50 – 1:200

Recommended protocols: check protocols

Image descriptions:

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Alternative names:

Check alternative names for the antibody


DDBB antibody, FLJ34321 antibody, UV-DDB2 antibody
damage-specific DNA binding protein 2 antibody|Damage-specific DNA-binding protein 2 antibody|DDB p48 subunit antibody|Ddb2 antibody|DDB2_HUMAN antibody|DDBb antibody|DNA damage-binding protein 2 antibody|UV-damaged DNA-binding protein 2 antibody|UV-DDB 2 antibody|Xeroderma pigmentosum group E protei antibody|Anti-DDB2 antibody [2246C4a] (ab51017)

SCBT cat No: sc-81246|sc-25368|sc-16295|


Rabbit polyclonal DDB2 antibody

Catalogue No.



Human, Mouse, Rat


Recombinant protein of human DDB2





Recommended dilution

WB 1:500 – 1:2000
IHC 1:50 – 1:200
IF 1:50 – 1:200







Molecular weight

Predicted: 48kDa/Observed: Refer to Figures


DDB2 antibody was tube-contained.
Buffer: PBS with 0.02% sodium azide, 50% glycerol, pH7.3.


DDB2 antibody was purified using affinity purification.


Store at -20 Celsius degree. Avoid freeze / thaw cycles.

Alternative antibody names

DDBB antibody, FLJ34321 antibody, UV-DDB2 antibody

Database links

Human UniProt/Swiss-Prot:Q92466

Protein names


Protein function

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.

Protein tissue specificity

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.

Protein sequence and domain

The DWD box is required for interaction with DDB1.; Interblade loops of the WD repeat region mediate most of the interaction with DNA. A hairpin between blades 5 and 6 inserts into DNA minor groove and mediates recognition of lesions and separation of the damaged and undamaged strands.Belongs to the WD repeat DDB2/WDR76 family.; Contains 7 WD repeats.

Protein post-translational modifications

Phosphorylation by ABL1 negatively regulate UV-DDB activity.; Ubiquitinated by CUL4A in response to UV irradiation. Ubiquitination appears to both impair DNA-binding and promotes ubiquitin-dependent proteolysis. Degradation of DDB2 at sites of DNA damage may be a prerequisite for their recognition by XPC and subsequent repair. CUL4A-mediated degradation appears to be promoted by ABL1.; Ubiquitinated, leading to proteasomal degradation, and deubiquitinated by USP24.

Protein cellular localization

Nucleus . Note: Accumulates at sites of DNA damage following UV irradiation.


Damaged DNA-Binding Protein (DDB) consists of a 127 kDa subunit (DDB-1) and a 48 kDa subunit (DDB-2) that contribute to the formation of the UV-damaged DNA-binding protein complex (UV-DDB) (1-3). In conjunction 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).


AntibodyPlus can customize DDB2 antibody according to your requirement, including bulk product size,etc. Please contact info@antibodyplus.com. AntibodyPlus provides antibody trial sample for your own antibody validation.

Product type

Primary antibody


ABclonal Inc.


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