Topoisomerase I Antibody [Alexa Fluor™ Plus 555]

• Reactivity: Hu, Mu
• Applications: WB, IP
• Clonality: Polyclonal
• Host: Rabbit
• Conjugate: Alexa Fluor Plus 555

Topoisomerase I Antibody [Alexa Fluor™ Plus 555] Summary

• Immunogen: The immunogen for this product maps to a region between residue 715 and 765 of human DNA topoisomerase I using the numbering given in entry NP_003277.1 (GeneID 7150).
• Isotype: IgG
• Clonality: Polyclonal
• Host: Rabbit
• Gene: TOP1
• Purity: Immunogen affinity purified

Applications/Dilutions

• Dilutions:
  • Immunoprecipitation
  • Western Blot
• Application Notes: Optimal dilution of this antibody should be experimentally determined.

Packaging, Storage & Formulations

• Storage: Store at 4C in the dark.
• Buffer: 50mM Sodium Borate
• Preservative: 0.05% Sodium Azide
• Purity: Immunogen affinity purified

Notes

This product is provided under an intellectual property license from Life Technologies Corporation. The transfer of this product is conditioned on the buyer using the purchased product solely in research conducted by the buyer, excluding contract research or any fee for service research, and the buyer must not (1) use this product or its components for (a) diagnostic, therapeutic or prophylactic purposes; (b) testing, analysis or screening services, or information in return for compensation on a per-test basis; or (c) manufacturing or quality assurance or quality control, and/or (2) sell or transfer this product or its components for resale, whether or not resold for use in research. For information on purchasing a license to this product for purposes other than as described above, contact Life Technologies Corporation, 5781 Van Allen Way, Carlsbad, CA 92008 USA or outlicensing@thermofisher.com. This conjugate is made on demand. Actual recovery may vary from the stated volume of this product. The volume will be greater than or equal to the unit size stated on the datasheet.

Alternate Names for Topoisomerase I Antibody [Alexa Fluor™ Plus 555]

• DNA topoisomerase 1
• DNA topoisomerase I
• EC 5.6.2.1
• EC 5.99.1.2
• TOP1
• TOPI
• topoisomerase (DNA) I
• Topoisomerase I
• type I DNA topoisomerase

Background

Topoisomerases are nuclear enzymes involved in a variety of cellular activities such as chromosome condensation, DNA replication, transcription, recombination and segregation at mitosis. Human topoisomerase I is a 100kD protein capable of relaxing positively and negatively supercoiled DNA by performing a transient single stranded nick which is then religated at the end of the reaction. It has been shown that the enzyme is located in regions of the genome that are undergoing active RNA synthesis, where it probably reduces superhelical stresses in the DNA, enabling RNA polymerase to function properly. Both DNA topoisomerases I and II have been found to be targets of autoantibodies in the sera of patients with certain autoimmune diseases such as systemic lupus erythematosus and also of some anti tumor drugs and antibiotics. Elevated levels of DNA topoisomerase I, detected by transfer assays, have been demonstrated in colorectal tumors compared with normal colon mucosa as a result of increased transcription or mRNA stability.

Limitations

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

Bioinformatics

• Gene Symbol: TOP1