Abcam, ab317145, Anti-POLE antibody [HL2150]

Size: 100µL
Rabbit Monoclonal POLE antibody. Suitable for IHC-P, WB and reacts with Human, Mouse samples. Immunogen corresponding to Recombinant Fragment Protein within Human POLE.
Key facts
Host species:Rabbit,
Clonality:Monoclonal,
Clone number:HL2150,
Isotype:IgG,
Carrier free:No,
Reacts with:Human, Mouse,
Applications:WB, IHC-PSee reactivity dataSee the reactivity data table below for information on validated species and application combinations.,
Immunogen:Recombinant Fragment Protein within Human POLE.Q07864

Properties and Storage Information:
Form-Liquid, Storage buffer-pH: 7.4Constituents: PBS, Shipped at conditions-Blue Ice, Appropriate short-term storage duration-1-2 weeks, Appropriate short-term storage conditions-+4°C, Appropriate long-term storage conditions--20°C, Aliquoting information-Upon delivery aliquot, Storage information-Avoid freeze / thaw cycle

Supplementary Information:
This supplementary information is collated from multiple sources and compiled automatically.
The POLE protein also known as DNA polymerase epsilon catalytic subunit A functions as an important component in DNA replication and repair mechanisms. POLE possesses a molecular mass of approximately 261 kDa and demonstrates expression primarily in proliferating cells such as those in the bone marrow lymphoid tissues and the gastrointestinal tract. It operates within the eukaryotic DNA polymerase family distinct from other polymerases due to its high fidelity in DNA synthesis which minimizes errors during replication.
Biological function summary
The POLE protein plays an essential role in the high-fidelity synthesis of leading-strand DNA during replication. POLE is part of a larger complex known as the DNA polymerase epsilon holoenzyme collaborating with accessory proteins that enhance its ability to synthesize DNA accurately. Moreover this protein contributes significantly to the proofreading function as it has intrinsic 3' to 5' exonuclease activity allowing the removal of incorrectly paired nucleotides therefore preventing mutations.
Pathways
The POLE protein is fundamentally involved in the DNA replication and repair pathways. These pathways ensure genomic integrity and stability important for normal cell division and preventing genomic instability associated with cancer. POLE interacts with other proteins such as PCNA and RFC (replication factor C) within these pathways facilitating efficient replication fork progression and repair processes. POLE's activity ensures coordination with leading strand synthesis complementing the functions of other polymerases involved in lagging strand DNA synthesis.
Mutations in the POLE gene have been linked to colorectal cancer and endometrial cancer. These conditions are often characterized by a hypermutated phenotype arising from impaired DNA proofreading ability due to ineffective exonuclease activity. In this context POLE mutations can assume significance in sporadic cancer cases as well as in hereditary cancer syndromes where it interacts with mismatch repair proteins highlighting its role in maintaining genomic fidelity.