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DNA Damage Antibody Useful for research on DNA Damage and Repair

Anti Cyclobutane Pyrimidine Dimers (CPDs) [Clone : TDM2]

Monoclonal Antibodies against DNA Damage [PDF]

Go to "Antibodies against DNA Damage"


DNA damage in cells exposed to ultraviolet (UV) radiation plays significant roles in cell-cycle arrest, activation of DNA repair, cell killing, mutation, and neoplastic transformation. The major types of DNA damage induced by UVB (280-315 nm, component of sunlight) and by UVC (200-280 nm) are cyclobutane pyrimidine dimers (CPDs) and (6-4) photoproducts (6-4PPs), which are formed between adjacent pyrimidine nucleotides on the same strand of DNA. Approximately 70-80% of UV-induced DNA damage is CPDs and the remaining is 6-4PPs and Dewar isomer of 6-4PPs. These types of DNA lesions are repaired by nucleotide excision repair (NER) system in normal human cells. Mori et al (19) have established monoclonal antibodies specific for CPDs or 6-4PPs. These antibodies enable one to quantitate photoproducts in DNA purified from cultured cells or from the skin epidermis using an enzyme-linked immunosorbent assay (ELISA) and to visualize and measure photoproducts in DNA in cultured cells or the skin using indirect immunofluorescence (IIF). This technology would contribute to understanding of molecular mechanisms of cellular responses to UV and DNA damage in many research fields including cancer research, photobiology, dermatology, ophthalmology, immunology, and cosmetology.

Monoclonal Antibodies 
against DNA Damage


The hybridoma was established by fusion of mouse myeloma cells with Balb/c mouse splenocytes immunized with methylated BSA conjugated with calf thymus DNA which was irradiated with UVC. This hybridoma (clone TDM-2) culture supernatant was collected and precipitated with ice-cold ammonium sulfate. After centrifugation, the pellet dissolved in small volume of double-distilled water was dialysed against PBS. The dialysate was then lyophilized.


1) The antibodies bind to CPDs in single-stranded DNA.
2) The antibodies bind to CPDs formed in every dipyrimidine sequence (TT, TC, CT and CC).
3) The antibodies stably binds to CPDs formed in oligonucleotides consisting of more than eight bases.

Cross Reactivity

The antibodies can bind to CPDs in denatured DNA from all organisms from bacteria to human.


  • React specifically with damaged DNA Research applications include ELISA and IC
  • Useful for research into DNA damage repair mechanisms
  • Visualizes the DNA damage repair process
  • Applicable to a broad range of research interests:photobiology, optical medicine, cancer, etc.


Immunocytochemistry; 1:1500 PROTOCOLS< Immunofluorescence microscopy >PDF
Western blotting; Not tested
Immunoprecipitation; Not tested
Immunohistochemistry; Not tested
Flow cytometry; Not tested

Induction and repair of UV-induced DNA damage in normal human cells measured by ELISA

Visualization of UV-induced DNA damage by using immunofluorescence

Related Product

Cosmo Bio's new Cyclobutane Pyrimidine Dimer (CPD) ELISA Kit uses the highly sensitive and specific monoclonal anti-CPD antibody clone TDM-2, established by Mori et al. TDM-2 is widely cited in the literature and is considered to be the gold standard antibody for CPD detection and quantification.Cosmo Bio's CPD ELISA Kit is the first and only commercially available ELISA kit using TDM-2. All kits components are optimized for high sensitivity CPD detection from cultured cells or skin epidermis.

Go To "High Sensitivity CPD/ Cyclobutane Pyrimidine Dimer ELISA kit"

Product List

Product Name Cat# Quantity Price

Anti CPDs


¥ 44,000
$ 587
€ 440

High Sensitivity CPD ELISA kit Ver.2


¥ 100,000
$ 1334
€ 1000

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  • Perturbed gap-filling synthesis in nucleotide excision repair causes histone H2AX phosphorylation in human quiescent cells.
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To be used for research only. DO NOT use for human gene therapy or clinical diagnosis.