DDB2 Antibody (YA2127)
(Synonyms: DDB p48 subunit; Ddb2; DDBb; UV-DDB 2)
Based on 1 Customer Validation
DDB2 Antibody (YA2127) is a Rabbit-derived and non-conjugated IgG monoclonal antibody, targeting to DDB2.
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Host:
Rabbit
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Isotype:
IgG
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Application:
WB, IHC-P, ICC/IF, FC
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Reactivity :
Human
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Formulation:
Supplied in rabbit IgG in 50mM Tris-Glycine(pH 7.4), 0.15M NaCl, 40%Glycerol, 0.01% sodium azide and 0.05% BSA.
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Conjugation:
Non-conjugated
To place orders, for customer services and technical support, please contact: MedChemExpress USA
Tel: 609-228-6898 E-mail: [email protected] [email protected]
Applications
| Application |
WB
WB: Western Blot
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IHC-P
IHC-P: Immunohistochemistry-Paraffin
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ICC/IF
ICC/IF: Immunocytochemistry/
Immunofluorescence |
FC
FC: Flow Cytometry
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|---|---|---|---|---|
| Dilution Ratio | 1:1000-1:2000 | 1:100-1:200 | 1:50-1:200 | 1:50-1:100 |
Product Details
DDB2 Antibody (YA2127) is a Rabbit-derived and non-conjugated IgG monoclonal antibody, targeting to DDB2.
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Host Rabbit
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Clonality Recombinant,Monoclonal
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Species ReactivityHuman
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Observed Molecular WeightObserved band size: 45 kDa
Note: Due to possible protein modifications or aggregation, the molecular weight should be confirmed by actual measurement, and the predicted value is for reference only.
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Calculated Molecular Weight Predicted band size: 48 kDa
A synthesized peptide derived from human DDB2 aa350-427/427.
Endogenous
Affinity Chromatography
Non-conjugated
Unmodified
IgG
Product Properties
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Appearance
Liquid
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Formulation
Supplied in rabbit IgG in 50mM Tris-Glycine(pH 7.4), 0.15M NaCl, 40%Glycerol, 0.01% sodium azide and 0.05% BSA.
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Concentration
Batch-dependent, Please check the COA for the concentration of each lot. Check Lot Concentration
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Storage & Stability
Stored at -20°C for 1 year. Avoid repeated freeze / thaw cycles.
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Shipping
Shipping with blue ice.
Background
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Function
DDB2 is a Protein, which is both involved in DNA repair and protein ubiquitination, as part of the UV-DDB complex and DCX (DDB1-CUL4-X-box) complexes, respectively. Core component of the UV-DDB complex (UV-damaged DNA-binding protein complex), a complex that recognizes 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 functions as the substrate recognition module for the DCX (DDB2-CUL4-X-box) E3 ubiquitin-protein ligase complex DDB2-CUL4-ROC1 (also known as CUL4-DDB-ROC1 and CUL4-DDB-RBX1). The DDB2-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 DDB2-CUL4-ROC1 complex also ubiquitinates XPC, which may enhance DNA-binding by XPC and promote NER. The DDB2-CUL4-ROC1 complex also ubiquitinates KAT7/HBO1 in response to DNA damage, leading to its degradation: recognizes KAT7/HBO1 following phosphorylation by ATR; Inhibits UV-damaged DNA repair; Inhibits UV-damaged DNA repair[1][2][3][4][5][6][7][8][9][10][11][12][13][14].
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Subcellular Localization
Nucleus; Chromosome
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Expression
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
Induction:Expression is induced in response to treatment with IR or UV and this requires p53/TP53 activity -
Isoforms & Post-Translational Modification
Q92466 has 5 isomers: Q92466-1: 47864 Da (predicted); Q92466-2: 26744 Da (predicted); Q92466-3: 17434 Da (predicted); Q92466-4: 40772 Da (predicted); Q92466-5: 26758 Da (predicted).
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. Deubiquitinated by USP44; leading to its stabilization on DNA lesions (By similarity);Acetylated (PubMed:32789493). Deacetylation by SIRT6 in response to UV stress facilitates nucleotide excision repair pathway (the NER pathway) transduction (PubMed:32789493) -
Subunit
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
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SwissProt ID
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Synonyms
DDB p48 subunit; Ddb2; DDBb; UV-DDB 2
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Research Field
Epigenetics and Nuclear Signaling
Documentation
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