Product: DDB2 Antibody
Catalog: DF2439
Description: Rabbit polyclonal antibody to DDB2
Application: WB IF/ICC
Reactivity: Human, Mouse
Prediction: Pig, Bovine, Horse, Sheep, Rabbit, Dog
Mol.Wt.: 45 kDa; 48kD(Calculated).
Uniprot: Q92466
RRID: AB_2839645

View similar products>>

   Size Price Inventory
 100ul $280 In stock
 200ul $350 In stock

Lead Time: Same day delivery

For pricing and ordering contact:
Local distributors

Product Info

Source:
Rabbit
Application:
WB 1:500-1:2000, IF/ICC 1:100-1:500
*The optimal dilutions should be determined by the end user.
*Tips:

WB: For western blot detection of denatured protein samples. IHC: For immunohistochemical detection of paraffin sections (IHC-p) or frozen sections (IHC-f) of tissue samples. IF/ICC: For immunofluorescence detection of cell samples. ELISA(peptide): For ELISA detection of antigenic peptide.

Reactivity:
Human,Mouse
Prediction:
Pig(100%), Bovine(88%), Horse(100%), Sheep(88%), Rabbit(88%), Dog(100%)
Clonality:
Polyclonal
Specificity:
DDB2 Antibody detects endogenous levels of total DDB2.
RRID:
AB_2839645
Cite Format: Affinity Biosciences Cat# DF2439, RRID:AB_2839645.
Conjugate:
Unconjugated.
Purification:
The antiserum was purified by peptide affinity chromatography using SulfoLink™ Coupling Resin (Thermo Fisher Scientific).
Storage:
Rabbit IgG in phosphate buffered saline, pH 7.4, 150mM NaCl, 0.02% sodium azide and 50% glycerol. Store at -20 °C. Stable for 12 months from date of receipt.
Alias:

Fold/Unfold

damage-specific DNA binding protein 2; Damage-specific DNA-binding protein 2; DDB p48 subunit; Ddb2; DDB2_HUMAN; DDBb; DNA damage-binding protein 2; UV-damaged DNA-binding protein 2; UV-DDB 2; Xeroderma pigmentosum group E protei;

Immunogens

Immunogen:
Uniprot:
Gene(ID):
Expression:
Q92466 DDB2_HUMAN:

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.

Description:
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.
Sequence:
MAPKKRPETQKTSEIVLRPRNKRSRSPLELEPEAKKLCAKGSGPSRRCDSDCLWVGLAGPQILPPCRSIVRTLHQHKLGRASWPSVQQGLQQSFLHTLDSYRILQKAAPFDRRATSLAWHPTHPSTVAVGSKGGDIMLWNFGIKDKPTFIKGIGAGGSITGLKFNPLNTNQFYASSMEGTTRLQDFKGNILRVFASSDTINIWFCSLDVSASSRMVVTGDNVGNVILLNMDGKELWNLRMHKKKVTHVALNPCCDWFLATASVDQTVKIWDLRQVRGKASFLYSLPHRHPVNAACFSPDGARLLTTDQKSEIRVYSASQWDCPLGLIPHPHRHFQHLTPIKAAWHPRYNLIVVGRYPDPNFKSCTPYELRTIDVFDGNSGKMMCQLYDPESSGISSLNEFNPMGDTLASAMGYHILIWSQEEARTRK

Predictions

Predictions:

Score>80(red) has high confidence and is suggested to be used for WB detection. *The prediction model is mainly based on the alignment of immunogen sequences, the results are for reference only, not as the basis of quality assurance.

Species
Results
Score
Pig
100
Horse
100
Dog
100
Bovine
88
Sheep
88
Rabbit
88
Xenopus
0
Zebrafish
0
Chicken
0
Model Confidence:
High(score>80) Medium(80>score>50) Low(score<50) No confidence

PTMs - Q92466 As Substrate

Site PTM Type Enzyme
Ubiquitination
S24 Phosphorylation
S26 Phosphorylation
K40 Ubiquitination
S50 Phosphorylation
K106 Ubiquitination
S116 Phosphorylation
T122 Phosphorylation
S131 Phosphorylation
K146 Ubiquitination
K151 Ubiquitination
K163 Ubiquitination
K187 Sumoylation
K187 Ubiquitination
K278 Acetylation
K278 Ubiquitination
S297 Phosphorylation
K309 Acetylation
K309 Sumoylation
K309 Ubiquitination
T338 Phosphorylation
K341 Ubiquitination
K362 Methylation
K362 Ubiquitination

Research Backgrounds

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.

PTMs:

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.

Subcellular Location:

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

Extracellular region or secreted Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertionSubcellular location
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.

Subunit Structure:

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.

Family&Domains:

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.

Research Fields

· Cellular Processes > Cell growth and death > p53 signaling pathway.   (View pathway)

· Genetic Information Processing > Replication and repair > Nucleotide excision repair.

· Genetic Information Processing > Folding, sorting and degradation > Ubiquitin mediated proteolysis.   (View pathway)

· Human Diseases > Infectious diseases: Viral > Hepatitis B.

· Human Diseases > Cancers: Overview > Pathways in cancer.   (View pathway)

· Human Diseases > Cancers: Overview > Transcriptional misregulation in cancer.

· Human Diseases > Cancers: Specific types > Colorectal cancer.   (View pathway)

· Human Diseases > Cancers: Specific types > Pancreatic cancer.   (View pathway)

· Human Diseases > Cancers: Specific types > Endometrial cancer.   (View pathway)

· Human Diseases > Cancers: Specific types > Glioma.   (View pathway)

· Human Diseases > Cancers: Specific types > Thyroid cancer.   (View pathway)

· Human Diseases > Cancers: Specific types > Basal cell carcinoma.   (View pathway)

· Human Diseases > Cancers: Specific types > Melanoma.   (View pathway)

· Human Diseases > Cancers: Specific types > Chronic myeloid leukemia.   (View pathway)

· Human Diseases > Cancers: Specific types > Small cell lung cancer.   (View pathway)

· Human Diseases > Cancers: Specific types > Non-small cell lung cancer.   (View pathway)

· Human Diseases > Cancers: Specific types > Breast cancer.   (View pathway)

· Human Diseases > Cancers: Specific types > Hepatocellular carcinoma.   (View pathway)

· Human Diseases > Cancers: Specific types > Gastric cancer.   (View pathway)

References

1). PolyG mitigates silica-induced pulmonary fibrosis by inhibiting nucleolin and regulating DNA damage repair pathway. BIOMEDICINE & PHARMACOTHERAPY (PubMed: 32036217) [IF=7.5]

Application: WB    Species: mouse    Sample: lung

Fig. 4. |The effect of PolyG on the expression of DDB2, p53R2, and GADD45α in silicotic mice. (A) Expression of p53r2, GADD45α and DDB2 protein levels in mouse lung, as measured by Western blotting

Restrictive clause

 

Affinity Biosciences tests all products strictly. Citations are provided as a resource for additional applications that have not been validated by Affinity Biosciences. Please choose the appropriate format for each application and consult Materials and Methods sections for additional details about the use of any product in these publications.

For Research Use Only.
Not for use in diagnostic or therapeutic procedures. Not for resale. Not for distribution without written consent. Affinity Biosciences will not be held responsible for patent infringement or other violations that may occur with the use of our products. Affinity Biosciences, Affinity Biosciences Logo and all other trademarks are the property of Affinity Biosciences LTD.