Rabbit anti-Human Topoisomerase I, DNA Polyclonal Antibody | anti-Top1 antibody
Topoisomerase I, DNA (Scl-70)
Reactivity
Human
Applications
Western Blot
Purity
SerumCrude rabbit serum.
Synonyms
Topoisomerase I; DNA; Polyclonal Antibody; DNA (Scl-70); Anti -Topoisomerase I; anti-Top1 antibody
Host
Rabbit
Reactivity
Human
Clonality
Polyclonal
Isotype
IgG
Specificity
Recognizes human topoisomerase I.
Purity/Purification
Serum
Crude rabbit serum.
Crude rabbit serum.
Form/Format
Supplied as a liquid, 40% glycerol.
Applicable Applications for anti-Top1 antibody
Western Blot (WB)
Application Notes
Suitable for use in Western Blot.
Dilution: Western Blot: 1:1000-1:2500
Dilution: Western Blot: 1:1000-1:2500
Immunogen
Human topoisomerase I purified from placenta.
Preparation and Storage
May be stored at 4 degree C for short-term only. For long-term storage, aliquot and store at -20 degree C. Aliquots are stable for at least 12 months at -20 degree C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.
Related Product Information for anti-Top1 antibody
Topoisomerase I changes the topology of DNA via cleavage of single strand only. Suitable for use in DNA conformational analysis and topology as well as DNA repair, drug resistance, cell proliferation and leukemia studies. The double-helical configuration that DNA strands naturally reside in makes them difficult to separate, and yet they must be separated if enzymes are to transcribe the sequences that encode proteins, or if chromosomes are to be replicated. In so-called circular DNA, in which double helical segment is bent around and joined in a circle, the two strands are topologically linked, or knotted. They cannot be separated by any process that does not involve the breaking of strands. Topoisomerases catalyze and guide the unknotting of DNA.
Type I topoisomerases cut only one strand of DNA; type I topoisomerase of E. coli > E. coli (omega protein) relaxes negatively supercoiled DNA and does not act on positively supercoiled DNA. Type II topoisomerases cut both strands of DNA; type II topoisomerase of E. coli (DNA gyrase) increases the degree of negative supercoiling in DNA and requires ATP. It is inhibited by several antibiotics, including nalidixic acid and ovobiocin.
Antibodies generated against the nuclear constituents are known as antinuclear antibodies (ANA). This includes autoantibodies directed against the extractable (soluble in physiological buffers) nuclear antigen or ENA. The most prominent of ANAs/ENAs are autoantibodies which binds to ds-DNA, ss-DNA, histones, ribonucleoproteins (RNP) and the SS-A, SS-B, Sm antigens, Jo-1, and Scl-70. Two antibodies, anti-dsDNA and anti-Sm, appear to occur only in SLE. Others occur in a variety of autoimmune and mixed connective tissue diseases.
Antibody to Scl-70 antigen was originally called Scl-1. Anti-Scl-70 has been shown to react with a cellular antigen known as DNA topoisomerase I, which is responsible for the relaxation of supercoiled DNA. Anti-Scl-70 is found in ~75% patients with the diffuse progressive form of scleroderma. The presence of anti-Scl-70 seems to exclude the presence of anti-centromere antibody, which is a marker for a subset of patients with scleroderma known as CREST (calcinosis, sclerodactyly, and telangiectasia) syndrome.
The frequency of ANA-positives in various rheumatic diseases has been reported for SLE, rheumatoid arthritis (RA), progressive systemic sclerosis (PSS), polymyositis (PM), dermatomyositis (DM), mixed connective tissue diseases, drug-induced SLE, and Sjogren's syndrome (SS). Most of these studies are based on tedious fluorescent ANA (FANA). Other techniques such as RIA, immunodiffusion, hemagglutination, electrophoresis and immunoblotting are also used to define antibody specificity. Recently, immunological assays (mostly ELISA) that determine the specificity of ANA have been used in studying patients with systemic rheumatic diseases.
Type I topoisomerases cut only one strand of DNA; type I topoisomerase of E. coli > E. coli (omega protein) relaxes negatively supercoiled DNA and does not act on positively supercoiled DNA. Type II topoisomerases cut both strands of DNA; type II topoisomerase of E. coli (DNA gyrase) increases the degree of negative supercoiling in DNA and requires ATP. It is inhibited by several antibiotics, including nalidixic acid and ovobiocin.
Antibodies generated against the nuclear constituents are known as antinuclear antibodies (ANA). This includes autoantibodies directed against the extractable (soluble in physiological buffers) nuclear antigen or ENA. The most prominent of ANAs/ENAs are autoantibodies which binds to ds-DNA, ss-DNA, histones, ribonucleoproteins (RNP) and the SS-A, SS-B, Sm antigens, Jo-1, and Scl-70. Two antibodies, anti-dsDNA and anti-Sm, appear to occur only in SLE. Others occur in a variety of autoimmune and mixed connective tissue diseases.
Antibody to Scl-70 antigen was originally called Scl-1. Anti-Scl-70 has been shown to react with a cellular antigen known as DNA topoisomerase I, which is responsible for the relaxation of supercoiled DNA. Anti-Scl-70 is found in ~75% patients with the diffuse progressive form of scleroderma. The presence of anti-Scl-70 seems to exclude the presence of anti-centromere antibody, which is a marker for a subset of patients with scleroderma known as CREST (calcinosis, sclerodactyly, and telangiectasia) syndrome.
The frequency of ANA-positives in various rheumatic diseases has been reported for SLE, rheumatoid arthritis (RA), progressive systemic sclerosis (PSS), polymyositis (PM), dermatomyositis (DM), mixed connective tissue diseases, drug-induced SLE, and Sjogren's syndrome (SS). Most of these studies are based on tedious fluorescent ANA (FANA). Other techniques such as RIA, immunodiffusion, hemagglutination, electrophoresis and immunoblotting are also used to define antibody specificity. Recently, immunological assays (mostly ELISA) that determine the specificity of ANA have been used in studying patients with systemic rheumatic diseases.
Product Categories/Family for anti-Top1 antibody
NCBI and Uniprot Product Information
NCBI GI #
NCBI GeneID
NCBI Accession #
NCBI GenBank Nucleotide #
NCBI Official Full Name
topoisomerase I
NCBI Official Symbol
Top1
NCBI Protein Information
topoisomerase I
Protein Family
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Product Notes
The Top1 (Catalog #AAA627840) is an Antibody produced from Rabbit and is intended for research purposes only. The product is available for immediate purchase. The Topoisomerase I, DNA (Scl-70) reacts with Human and may cross-react with other species as described in the data sheet. AAA Biotech's Topoisomerase I, DNA can be used in a range of immunoassay formats including, but not limited to, Western Blot (WB). Suitable for use in Western Blot. Dilution: Western Blot: 1:1000-1:2500. Researchers should empirically determine the suitability of the Top1 for an application not listed in the data sheet. Researchers commonly develop new applications and it is an integral, important part of the investigative research process. It is sometimes possible for the material contained within the vial of "Topoisomerase I, DNA, Polyclonal Antibody" to become dispersed throughout the inside of the vial, particularly around the seal of said vial, during shipment and storage. We always suggest centrifuging these vials to consolidate all of the liquid away from the lid and to the bottom of the vial prior to opening. Please be advised that certain products may require dry ice for shipping and that, if this is the case, an additional dry ice fee may also be required.Precautions
All products in the AAA Biotech catalog are strictly for research-use only, and are absolutely not suitable for use in any sort of medical, therapeutic, prophylactic, in-vivo, or diagnostic capacity. By purchasing a product from AAA Biotech, you are explicitly certifying that said products will be properly tested and used in line with industry standard. AAA Biotech and its authorized distribution partners reserve the right to refuse to fulfill any order if we have any indication that a purchaser may be intending to use a product outside of our accepted criteria.Disclaimer
Though we do strive to guarantee the information represented in this datasheet, AAA Biotech cannot be held responsible for any oversights or imprecisions. AAA Biotech reserves the right to adjust any aspect of this datasheet at any time and without notice. It is the responsibility of the customer to inform AAA Biotech of any product performance issues observed or experienced within 30 days of receipt of said product. To see additional details on this or any of our other policies, please see our Terms & Conditions page.Item has been added to Shopping Cart
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