XPB and XPD are ATPase/helicase subunits of the TFIIH complex that are involved in nucleotide excision repair (NER) to remove lesions and photoproducts generated by UV light (1).
XPB and XPD are 3’-5’ and 5’-3’ DNA helicases, respectively, that play a role in opening of the DNA damage site to facilitate repair (2,3).
XPB and XPD both play an important role in maintaining genomic stability, and researchers have linked mutations of these proteins to Xeroderma Pigmentosum (XP) and Trichothiodystrophy (TTD).
XP patients have abnormalities in skin pigmentation and are highly susceptible to skin cancers, while TTD patients exhibit symptoms such as brittle hair, neurological abnormalities, and mild photosensitivity (4).
In addition to their role in NER, XPB and XPD are involved in transcription initiation as part of the TFIIH core complex (5).
The helicase activity of XPB unwinds DNA around the transcription start site to facilitate RNA polymerase II promoter clearance and initiation of transcription (6).
XPD plays a structural role linking core TFIIH components with the cdk-activating kinase (CAK) complex that phosphorylates the C-terminus of the largest subunit of RNA polymerase II, leading to transcription initiation (7).
Applications:Suitable for use in Western Blot, Immunohistochemistry and ELISA.
Other applications not tested.
Recommended Dilution:Western Blot: 1:500-1:2000, incubate membrane with diluted primary antibody in TBS, 5% milk, 0.1% Tween 20 at 4°C with gentle shaking, overnight
Immunohistochemistry: 1:50-1:200ELISA (peptide): 1:20,000-1:40,000Optimal 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 12 months after receipt.
For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.
仕様
Size:200ul
Host:rabbit
Source Antibody:human
Grade:Affinity Purified
Purity:Purified by immunoaffinity chromatography from serum.
Form:Supplied as a liquid in PBS, pH 7.4, 0.02% sodium azide, 50% glycerol.
Specificity:Recognizes endogenous levels of total human ERCC3. Species Crossreactivity: Mouse and rat
Isotype:IgG
Calc Applications Abbrev:E IHC WB
Calc Crossreactivity:Hu Mo Rt
Immunogen:Synthetic peptide corresponding to human ERCC3. Species sequence homology: Porcine (100%), Zebrafish (100%), Bovine (100%), Sheep (100%), Rabbit (100%), Canine (100%), Chicken (100%), Xenopus (100%)