{"product_id":"top1-polyclonal-antibody-bs91366","title":"TOP1 Polyclonal Antibody-BS91366","description":"\u003cp\u003eTOP1 Polyclonal Antibody\u003c\/p\u003e\n\n\u003cp\u003eSizes: 50µl, 100µl\u003c\/p\u003e\n\n\u003cp\u003eCatalogue Numbers: BS91366-50, BS91366-100\u003c\/p\u003e\n\n\u003cp\u003eProduct: Rabbit IgG, 1mg\/ml in PBS with 0.02% sodium azide, 50% glycerol, pH7.2\u003c\/p\u003e\n\n\u003cp\u003eSwiss-Prot: P11387(Human) Q04750(Mouse)\u003c\/p\u003e\n\n\u003cp\u003eHost: Rabbit\u003c\/p\u003e\n\n\u003cp\u003eReactivity: Human, Mouse\u003c\/p\u003e\n\n\u003cp\u003eApplications: WB, ICC\/IF, IHC, FC\u003c\/p\u003e\n\n\u003cp\u003eAll Applications: WB:1:1,000-1:5,000\u003cbr\u003e\nICC:1:50-1:500\u003cbr\u003e\nIHC:1:50-1:200\u003cbr\u003e\nFC:1:50-1:100\u003c\/p\u003e\n\n\u003cp\u003eBackground: DNA topoisomerases play essential roles in many DNA metabolic processes including DNA repair. Topoisomerases can introduce DNA damage upon exposure to drugs that stabilize the covalent protein-DNA intermediate of the topoisomerase reaction. Lesions in DNA are also able to trap topoisomerase-DNA intermediates. DNA topoisomerase I (Top1) catalyzes the relaxation of supercoiled DNA by a mechanism of transient DNA strand cleavage characterized by the formation of a phosphotyrosyl bond between the DNA end and active site tyrosine. The antitumor agent camptothecin (CPT) reversibly stabilizes the covalent enzyme-DNA intermediate by inhibiting DNA religation. When a replication fork collides with a DNA Top1 cleavage complex, the covalently bound enzyme must be removed from the DNA 3' end before recombination-dependent replication restart. The tyrosyl-DNA phosphodiesterase Tdp1 and the structure-specific endonuclease Rad1-Rad10 function as primary alternative pathways of Top1 repair in Saccharomyces cerevisiae. In the budding yeast S. cerevisiae, DNA topoisomerases I and II can functionally substitute for each other in removing positive and negative DNA supercoils.\u003c\/p\u003e\n\n\u003cp\u003ePurification and Purity: ProA affinity purified\u003c\/p\u003e\n\n\u003cp\u003eStorage and Stability: Store at +4°C after thawing. Aliquot store at -20°C or -80°C. Avoid repeated freeze \/ thaw cycles.\u003c\/p\u003e\n\n\u003cp\u003eSpecificity: TOP1 polyclonal antibody detects endogenous levels of TOP1 protein.\u003c\/p\u003e\n\n\u003cp\u003eBioworld Molecular Weight: 91 kDa\u003c\/p\u003e\n\n\u003cp\u003eNote: For research use only, not for use in diagnostic procedure.\u003c\/p\u003e\n\n\u003cp\u003eExtra Notes: Western blot analysis of TOP1 on different lysates using anti-TOP1 antibody at 1\/1,000 dilution. \u003cbr\u003e\n Positive control: \u003cbr\u003e\n Lane 1: HepG2 \u003cbr\u003e\n Lane 2: Jurkat \u003cbr\u003e\n Lane 3: MCF-7, ICC staining TOP1 in Hela cells (green). The nuclear counter stain is DAPI (blue). Cells were fixed in paraformaldehyde, permeabilised with 0.25% Triton X100\/PBS.\u003c\/p\u003e\n\n\u003cp\u003eAlternative Name: TOP1, DNA topoisomerase 1, DNA topoisomerase I, NUP98 fusion gene, TOP 1, TOP I, TOP1, TOP1, TOPI, Topoisomerase (DNA) I, Topoisomerase 1, Topoisomerase1, TopoisomeraseI, Type I DNA topoisomerase,\u003c\/p\u003e \n\n\u003cp\u003eImmunogen: recombinant protein\u003c\/p\u003e\n\n\u003cp\u003eConjugate: Unconjugated\u003c\/p\u003e\n\n\u003cp\u003eModification: Unmodified\u003c\/p\u003e","brand":"BioWorld","offers":[{"title":"50µl","offer_id":42987057184947,"sku":"BS91366-50","price":424.94,"currency_code":"CAD","in_stock":true},{"title":"100µl","offer_id":42987057217715,"sku":"BS91366-100","price":655.54,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0305\/9482\/6376\/products\/thumbnail_d1447bac803ec9be_11-14-09-19-51_1e8a533a-4450-4933-aed8-b904441fa029.jpg?v=1706008035","url":"https:\/\/afsbio.com\/products\/top1-polyclonal-antibody-bs91366","provider":"AFSBio Inc.","version":"1.0","type":"link"}