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POLK Blocking Peptide (Center)
Synthetic peptide
- SPECIFICATION
- CITATIONS
- PROTOCOLS
- BACKGROUND
| Primary Accession | Q9UBT6 |
|---|---|
| Other Accession | NP_057302.1 |
| Gene ID | 51426 |
|---|---|
| Other Names | DNA polymerase kappa, DINB protein, DINP, POLK, DINB1 |
| Target/Specificity | The synthetic peptide sequence is selected from aa 546-560 of HUMAN POLK |
| Format | Peptides are lyophilized in a solid powder format. Peptides can be reconstituted in solution using the appropriate buffer as needed. |
| Storage | Maintain refrigerated at 2-8°C for up to 6 months. For long term storage store at -20°C. |
| Precautions | This product is for research use only. Not for use in diagnostic or therapeutic procedures. |
| Name | POLK |
|---|---|
| Synonyms | DINB1 |
| Function | DNA polymerase specifically involved in DNA repair. Plays an important role in translesion synthesis, where the normal high-fidelity DNA polymerases cannot proceed and DNA synthesis stalls. Depending on the context, it inserts the correct base, but causes frequent base transitions, transversions and frameshifts. Lacks 3'-5' proofreading exonuclease activity. Forms a Schiff base with 5'-deoxyribose phosphate at abasic sites, but does not have lyase activity. |
| Cellular Location | Nucleus. Note=Detected throughout the nucleus and at replication foci (PubMed:12414988). Recruited to DNA damage sites in response to ultraviolet irradiation: N6-methyladenosine (m6A)- containing mRNAs accumulate in the vicinity of DNA damage sites and their presence is required to recruit POLK (PubMed:28297716) |
| Tissue Location | Detected at low levels in testis, spleen, prostate and ovary. Detected at very low levels in kidney, colon, brain, heart, liver, lung, placenta, pancreas and peripheral blood leukocytes |
Thousands of laboratories across the world have published research that depended on the performance of antibodies from Abcepta to advance their research. Check out links to articles that cite our products in major peer-reviewed journals, organized by research category.
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Provided below are standard protocols that you may find useful for product applications.
Background
External and internal DNA-damaging agents continually threaten the integrity of genetic material in cells. Although a variety of repair mechanisms exist to remove the resulting lesions, some lesions escape repair and block the replication machinery. Members of the Y family of DNA polymerases, such as POLK, permit the continuity of the replication fork by allowing replication through such DNA lesions. Each Y family polymerase has a unique DNA-damage bypass and fidelity profile. POLK is specialized for the extension step of lesion bypass (summary by Lone et al., 2007 [PubMed 17317631]).
References
Rose, J.E., et al. Mol. Med. 16 (7-8), 247-253 (2010) :
Monsees, G.M., et al. Breast Cancer Res. Treat. (2010) In press :
Katafuchi, A., et al. Nucleic Acids Res. 38(3):859-867(2010)
Fukuda, H., et al. J. Biol. Chem. 284(38):25585-25592(2009)
Irimia, A., et al. J. Biol. Chem. 284(33):22467-22480(2009)
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