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POLH Antibody
POLH Antibody
- 中文名称：
- POLH Antibody
- 英文名称：
- POLH Antibody
- 品牌：
- AAA Biotech
- 品牌介绍：
- AAA Biotech专注于为全球生命科学研究提供高品质的蛋白质研究工具，核心产品包括经严格验证的抗体、重组蛋白及ELISA试剂盒。
- 货号：
- AAA326411
- 规格：
- 0.1 mL|0.2 mL|2x0.2 mL|3x0.2 mL|4x0.2 mL
- 保存建议：
- 收到后，可在-20摄氏度储存12个月。
- 货期：
- 6-8周
- 来源宿主：
- Rabbit
- 反应种属：
- Human, Mouse, Rat
- 应用：
- ELISA, IHC (Immunohistochemistry), WB (Western Blot)
- 免责声明：
- *本产品仅供科研实验使用，不得用于临床诊断。*
- 其他：
克隆性:Polyclonal
同型:IgG
克隆号:N/A
特异性:POLH antibody detects endogenous levels of total POLH
纯度:The antiserum was purified by peptide affinity chromatography using SulfoLink Coupling Resin.
形式：Liquid
Phosphate buffered saline, pH 7.4, 150mM NaCl, 0.02% sodium azide and 50% glycerol.
浓度：1mg/ml
- 说明书：
Description: This gene encodes a member of the Y family of specialized DNA polymerases. It copies undamaged DNA with a lower fidelity than other DNA-directed polymerases. However, it accurately replicates UV-damaged DNA; when thymine dimers are present, this polymerase inserts the complementary nucleotides in the newly synthesized DNA, thereby bypassing the lesion and suppressing the mutagenic effect of UV-induced DNA damage. This polymerase is thought to be involved in hypermutation during immunoglobulin class switch recombination. Mutations in this gene result in XPV, a variant type of xeroderma pigmentosum. [provided by RefSeq, Jul 2008]
Function: DNA polymerase specifically involved in the DNA repair by translesion synthesis (TLS) (PubMed:10385124, PubMed:11743006, PubMed:24449906). Due to low processivity on both damaged and normal DNA, cooperates with the heterotetrameric (REV3L, REV7, POLD2 and POLD3) POLZ complex for complete bypass of DNA lesions. Inserts one or 2 nucleotide(s) opposite the lesion, the primer is further extended by the tetrameric POLZ complex. In the case of 1, 2-intrastrand d(GpG)-cisplatin cross-link, inserts dCTP opposite the 3' guanine (PubMed:24449906). Particularly important for the repair of UV-induced pyrimidine dimers (PubMed:10385124, PubMed:11743006). Although inserts the correct base, may cause base transitions and transversions depending upon the context. May play a role in hypermutation at immunoglobulin genes (PubMed:11376341, PubMed:14734526). Forms a Schiff base with 5'-deoxyribose phosphate at abasic sites, but does not have any lyase activity, preventing the release of the 5'-deoxyribose phosphate (5'-dRP) residue. This covalent trapping of the enzyme by the 5'-dRP residue inhibits its DNA synthetic activity during base excision repair, thereby avoiding high incidence of mutagenesis (PubMed:14630940). Targets POLI to replication foci (PubMed:12606586).
Subunit Structure: Interacts with REV1 (By similarity). Interacts with monoubiquitinated PCNA, but not unmodified PCNA (PubMed:15149598). Interacts with POLI; this interaction targets POLI to the replication machinery (PubMed:12606586). Interacts with PALB2 and BRCA2; the interactions are direct and are required to sustain the recruitment of POLH at blocked replication forks and to stimulate POLH-dependent DNA synthesis on D loop substrates (PubMed:24485656).
Post-translational Modifications: Monoubiquitinated by RCHY1/PIRH2; ubiquitination inhibits the ability of PolH to interact with PCNA and to bypass UV-induced lesions.
Similarity: The catalytic core consists of fingers, palm and thumb subdomains, but the fingers and thumb subdomains are much smaller than in high-fidelity polymerases; residues from five sequence motifs of the Y-family cluster around an active site cleft that can accommodate DNA and nucleotide substrates with relaxed geometric constraints, with consequently higher rates of misincorporation and low processivity. Belongs to the DNA polymerase type-Y family.
