Human XPA ELISA Matched Antibody Pair

Name: Human XPA ELISA Matched Antibody Pair
SKU: ABPR-1036
Rating: 5 (1 reviews)

Regulatory status: For research use only, not for use in diagnostic procedures.

COA

SDS

Datasheet

Summary

Species Reactivity

Human

Intended Use

This antibody pair set comes with matched antibody pair to detect and quantify protein level of human XPA.

General Description

This gene encodes a zinc finger protein involved in DNA excision repair. The encoded protein is part of the NER (nucleotide excision repair) complext which is responsible for repair of UV radiation-induced photoproducts and DNA adducts induced by chemical carcinogens. Mutations in this gene are associated with xeroderma pigmentosum complementation group A. Alternatively spliced transcript variants have been found for this gene.

Reconstitution And Storage

Store reagents of the antibody pair set at -20°C or lower. Please aliquot to avoid repeated freeze thaw cycle. Reagents should be returned to -20°C storage immediately after use.

Citations

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Documents

pdf COA

pdf SDS

pdf Datasheet

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Customer Reviews

References

H4K20me2: Orchestrating the recruitment of DNA repair factors in nucleotide excision repair

NUCLEUS

Authors: Chitale, Shalaka; Richly, Holger

Abstract

The integrity of the genome is maintained by specific DNA repair pathways. The main pathway removing DNA lesions induced by exposure to UV light is nucleotide excision repair (NER). The DNA damage response at chromatin is accompanied by the recruitment of DNA repair factors to the lesion site and the deposition of specific histone marks. The function of these histone marks in NER stays for the most part elusive. We have recently reported that the methyltransferase MMSET catalyzes the dimethylation of histone H4 at lysine 20 (H4K20me2) at the lesion site. The deposition of H4K20me2 at DNA damage sites elicits the recruitment of the NER factor XPA providing evidence for an H4K20me2-dependent DNA repair factor recruitment mechanism during lesion recognition in the global-genomic branch of NER. Here we discuss how H4K20me2 might impact on the chromatin conformation and the DNA damage response.

Nucleotide excision repair capacity increases during differentiation of human embryonic carcinoma cells into neurons and muscle cells

JOURNAL OF BIOLOGICAL CHEMISTRY

Authors: Li, Wentao; Liu, Wenjie; Kakoki, Ayano; Wang, Rujin; Adebali, Ogun; Jiang, Yuchao; Sancar, Aziz

Abstract

Embryonic stem cells can self-renew and differentiate, holding great promise for regenerative medicine. They also employ multiple mechanisms to preserve the integrity of their genomes. Nucleotide excision repair, a versatile repair mechanism, removes bulky DNA adducts from the genome. However, the dynamics of the capacity of nucleotide excision repair during stem cell differentiation remain unclear. Here, using immunoslot blot assay, we measured repair rates of UV-induced DNA damage during differentiation of human embryonic carcinoma (NTERA-2) cells into neurons and muscle cells. Our results revealed that the capacity of nucleotide excision repair increases as cell differentiation progresses. We also found that inhibition of the apoptotic signaling pathway has no effect on nucleotide excision repair capacity. Furthermore, RNA-Seq-based transcriptomic analysis indicated that expression levels of four core repair factors, xeroderma pigmentosum (XP) complementation group A (XPA), XPC, XPG, and XPF-ERCC1, are progressively up-regulated during differentiation, but not those of replication protein A (RPA) and transcription factor IIH (TFIIH). Together, our findings reveal that increase of nucleotide excision repair capacity accompanies cell differentiation, supported by the up-regulated transcription of genes encoding DNA repair enzymes during differentiation of two distinct cell lineages.