RecombinantRabMAb

Recombinant Alexa Fluor® 488 Anti-Topoisomerase I antibody [EPR5376(2)] (ab223421)

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Immunocytochemistry/ Immunofluorescence - Alexa Fluor® 488 Anti-Topoisomerase I antibody [EPR5376(2)] (ab223421)
  • Alexa Fluor® 488 Anti-Topoisomerase I antibody [EPR5376(2)] (ab223421)

Key features and details

  • Produced recombinantly (animal-free) for high batch-to-batch consistency and long term security of supply
  • Alexa Fluor® 488 Rabbit monoclonal [EPR5376(2)] to Topoisomerase I
  • Suitable for: ICC/IF
  • Reacts with: Human
  • Conjugation: Alexa Fluor® 488. Ex: 495nm, Em: 519nm

Overview

  • Product name

    Alexa Fluor® 488 Anti-Topoisomerase I antibody [EPR5376(2)]
    See all Topoisomerase I primary antibodies

  • Description

    Alexa Fluor® 488 Rabbit monoclonal [EPR5376(2)] to Topoisomerase I

  • Host species

    Rabbit

  • Conjugation

    Alexa Fluor® 488. Ex: 495nm, Em: 519nm

  • Tested applications

    Suitable for: ICC/IFmore details

  • Species reactivity

    Reacts with: Human
    Predicted to work with: Mouse, Rat

  • Immunogen

    Synthetic peptide corresponding to Human Topoisomerase I aa 700 to the C-terminus.
    Database link: P11387

  • Positive control

    • ICC/IF: MCF7 cells.

  • General notes

    Our RabMAb® technology is a patented hybridoma-based technology for making rabbit monoclonal antibodies. For details on our patents, please refer to RabMAb® patents.

    Alexa Fluor® is a registered trademark of Molecular Probes, Inc, a Thermo Fisher Scientific Company. The Alexa Fluor® dye included in this product is provided under an intellectual property license from Life Technologies Corporation. As this product contains the Alexa Fluor® dye, the purchase of this product conveys to the buyer the non-transferable right to use the purchased product and components of the product only in research conducted by the buyer (whether the buyer is an academic or for-profit entity). As this product contains the Alexa Fluor® dye the sale of this product is expressly conditioned on the buyer not using the product or its components, or any materials made using the product or its components, in any activity to generate revenue, which may include, but is not limited to use of the product or its components: in manufacturing; (ii) to provide a service, information, or data in return for payment (iii) for therapeutic, diagnostic or prophylactic purposes; or (iv) for resale, regardless of whether they are sold for use in research. For information on purchasing a license to this product for purposes other than research, contact Life Technologies Corporation, 5781 Van Allen Way, Carlsbad, CA 92008 USA or outlicensing@thermofisher.com.

    Reproducibility is key to advancing scientific discovery and accelerating scientists’ next breakthrough.

    Abcam is leading the way with our range of recombinant antibodies, knockout-validated antibodies and knockout cell lines, all of which support improved reproducibility.

    We are also planning to innovate the way in which we present recommended applications and species on our product datasheets, so that only applications & species that have been tested in our own labs, our suppliers or by selected trusted collaborators are covered by our Abpromise™ guarantee.

    In preparation for this, we have started to update the applications & species that this product is Abpromise guaranteed for.

    We are also updating the applications & species that this product has been “predicted to work with,” however this information is not covered by our Abpromise guarantee.

    Applications & species from publications and Abreviews that have not been tested in our own labs or in those of our suppliers are not covered by the Abpromise guarantee.

    Please check that this product meets your needs before purchasing. If you have any questions, special requirements or concerns, please send us an inquiry and/or contact our Support team ahead of purchase. Recommended alternatives for this product can be found below, as well as customer reviews and Q&As.

Properties

  • Form

    Liquid

  • Storage instructions

    Shipped at 4°C. Store at +4°C short term (1-2 weeks). Upon delivery aliquot. Store at -20°C. Stable for 12 months at -20°C. Store In the Dark.

  • Storage buffer

    pH: 7.40
    Preservative: 0.02% Sodium azide
    Constituents: 1% BSA, 30% Glycerol, PBS
  • Concentration information loading...

  • Purity

    Protein A purified

  • Clonality

    Monoclonal

  • Clone number

    EPR5376(2)

  • Isotype

    IgG

  • Research areas

Applications

Our Abpromise guarantee covers the use of ab223421 in the following tested applications.

The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.

Application Abreviews Notes
ICC/IF 1/100.

This product gave a positive signal in MCF7 cells fixed with 4% formaldehyde (10 min) and 100% methanol (5 min)

Target

  • Function

    The reaction catalyzed by topoisomerases leads to the conversion of one topological isomer of DNA to another.

  • Involvement in disease

    Note=A chromosomal aberration involving TOP1 is found in a form of therapy-related myelodysplastic syndrome. Translocation t(11;20)(p15;q11) with NUP98.

  • Sequence similarities

    Belongs to the eukaryotic type I topoisomerase family.

  • Post-translational
    modifications

    Sumoylated. Lys-117 is the main site of sumoylation. Sumoylation plays a role in partitioning TOP1 between nucleoli and nucleoplasm. Levels are dramatically increased on camptothecin (CPT) treatment.

  • Cellular localization

    Nucleus > nucleolus. Nucleus > nucleoplasm. Diffuse nuclear localization with some enrichment in nucleoli. On CPT treatment, cleared from nucleoli into nucleoplasm. Sumolyated forms found in both nucleoplasm and nucleoli.
  • Information by UniProt

  • Database links

    see all

  • Alternative names

    • DNA topoisomerase 1 antibody
    • DNA topoisomerase I antibody
    • NUP98 fusion gene antibody
    • TOP 1 antibody
    • TOP I antibody
    • TOP1 antibody
    • TOP1_HUMAN antibody
    • TOPI antibody
    • Topoisomerase (DNA) I antibody
    • Topoisomerase 1 antibody
    • Topoisomerase1 antibody
    • TopoisomeraseI antibody
    • Type I DNA topoisomerase antibody
    see all

Images

  • Immunocytochemistry/ Immunofluorescence - Alexa Fluor® 488 Anti-Topoisomerase I antibody [EPR5376(2)] (ab223421)
    Immunocytochemistry/ Immunofluorescence - Alexa Fluor® 488 Anti-Topoisomerase I antibody [EPR5376(2)] (ab223421)

    ab223421 staining Topoisomerase I in MCF7 cells. The cells were fixed with 4% formaldehyde (10 min), permeabilized with 0.1% Triton X-100 for 5 minutes and then blocked with 1% BSA/10% normal goat serum/0.3M glycine in 0.1% PBS-Tween for 1h. The cells were then incubated overnight at +4°C with ab223421 at 1/100 dilution (shown in Green) and ab195889, Mouse monoclonal to alpha Tubulin (Alexa Fluor® 594), at 1/250 dilution (shown in red). Nuclear DNA was labelled with DAPI (shown in blue).

    Image was taken with a confocal microscope (Leica-Microsystems, TCS SP8).

    This product also gave a positive signal under the same testing conditions in MCF7 cells fixed with 100% methanol (5 min).

  • Alexa Fluor® 488 Anti-Topoisomerase I antibody [EPR5376(2)] (ab223421)
    Alexa Fluor® 488 Anti-Topoisomerase I antibody [EPR5376(2)] (ab223421)

Protocols

To our knowledge, customised protocols are not required for this product. Please try the standard protocols listed below and let us know how you get on.

Click here to view the general protocols

References (0)

Publishing research using ab223421? Please let us know so that we can cite the reference in this datasheet.

ab223421 has not yet been referenced specifically in any publications.

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