Abcam, ab111641, Recombinant Human DNA Polymerase beta protein

Size: 100µg
Recombinant Human DNA Polymerase beta protein is a Human Full Length protein, in the 1 to 335 aa range, expressed in Escherichia coli, with >90%, suitable for SDS-PAGE, Mass Spec.
Key facts
Purity:>90% SDS-PAGE,
Expression system:Escherichia coli,
Tags:His tag N-Terminus,
Applications:Mass Spec, SDS-PAGESee reactivity dataSee the reactivity data table below for information on validated species and application combinations.,
Biologically active:No,
Accession:P06746,
Animal free:No,
Carrier free:No,
Species:Human,
Storage buffer:pH: 8Constituents: 69% Tris HCl, 30% Glycerol (glycerin, glycerine), 0.58% Sodium chloride, 0.02% (R*,R*)-1,4-Dimercaptobutan-2,3-diol

Properties and Storage Information:
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.
DNA polymerase beta often abbreviated as pol β serves as a repair enzyme that plays a role in the base excision repair (BER) pathway. This protein's mechanical function involves filling small gaps in the DNA created during repair processes by adding nucleotides. Its molecular weight is approximately 39 kDa. DNA polymerase beta is expressed extensively in the brain liver and testis indicating its importance in DNA repair in various cells. Other names for this protein include DNA pol beta and pol β. It synthesizes DNA using deoxyribonucleotide triphosphates as substrates and requires magnesium ions for activity.
Biological function summary
DNA polymerase beta helps to maintain genome integrity by repairing DNA lesions caused by oxidation alkylation or deamination. This protein often collaborates with other components of the DNA repair pathways but it does not directly form a larger protein complex focusing instead on its important function in BER. When DNA damage like single-strand breaks occur pol β carries out important gap-filling synthesis steps preparing the strand for subsequent ligation.
Pathways
DNA polymerase beta functions critically in base excision repair and acts alongside other important proteins like XRCC1. The BER pathway operates to correct DNA damage from endogenous sources preventing harmful mutations. This pathway is essential for maintaining cellular stability and protecting cells from apoptosis or malignant transformation that might occur if DNA damage propagates.
Mutations or dysfunctional activity within DNA polymerase beta have links to cancer and neurodegenerative diseases. For example errors in pol β's repair functions can lead to the persistence of DNA damage which can contribute to tumorigenesis. Furthermore its relationship with beta-actin has implications in cellular structural integrity and cancer metastasis. Dysfunctions within the BER pathway indicate potential contributions to neurodegenerative disorders where an accumulation of DNA damage is a common feature.