Product nameAnti-Topoisomerase I antibody [EPR5376(2)]
See all Topoisomerase I primary antibodies
DescriptionRabbit monoclonal [EPR5376(2)] to Topoisomerase I
Tested applicationsSuitable for: WB, ICC/IFmore details
Unsuitable for: Flow Cyt,IHC-P or IP
Species reactivityReacts with: Mouse, Rat, Human
Synthetic peptide within Human Topoisomerase I aa 700-800. The exact sequence is proprietary.
- MCF7, Jurkat, SW480, K562, Ramos, RAW264.7 and PC12 cell lysates; MCF7 cells.
Our RabMAb® technology is a patented hybridoma-based technology for making rabbit monoclonal antibodies. For details on our patents, please refer to RabMab® patents.
We are constantly working hard to ensure we provide our customers with best in class antibodies. As a result of this work we are pleased to now offer this antibody in purified format. We are in the process of updating our datasheets. The purified format is designated 'PUR' on our product labels. If you have any questions regarding this update, please contact our Scientific Support team.
This product is a recombinant rabbit monoclonal antibody.
Storage instructionsShipped at 4°C. Store at -20°C. Stable for 12 months at -20°C.
Dissociation constant (KD)KD = 4.67 x 10 -11 M Learn more about KD
Storage bufferpH: 7.20
Preservative: 0.01% Sodium azide
Constituents: 9% PBS, 40% Glycerol, 0.05% BSA, 50% Tissue culture supernatant
PurityTissue culture supernatant
Our Abpromise guarantee covers the use of ab131166 in the following tested applications.
The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
|WB||1/1000 - 1/10000. Detects a band of approximately 95 kDa (predicted molecular weight: 91 kDa).|
|ICC/IF||1/250 - 1/500.|
FunctionThe reaction catalyzed by topoisomerases leads to the conversion of one topological isomer of DNA to another.
Involvement in diseaseNote=A chromosomal aberration involving TOP1 is found in a form of therapy-related myelodysplastic syndrome. Translocation t(11;20)(p15;q11) with NUP98.
Sequence similaritiesBelongs to the eukaryotic type I topoisomerase family.
modificationsSumoylated. 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 localizationNucleus > 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
- DNA topoisomerase 1 antibody
- DNA topoisomerase I antibody
- NUP98 fusion gene antibody
All lanes : Anti-Topoisomerase I antibody [EPR5376(2)] (ab131166) at 1/1000 dilution
Lane 1 : MCF7 cell lysate
Lane 2 : Jurkat cell lysate
Lane 3 : SW480 cell lysate
Lane 4 : K562 cell lysate
Lane 5 : Ramos cell lysate
Lane 6 : RAW264.7 cell lysate
Lane 7 : PC12 cell lysate
Lysates/proteins at 10 µg per lane.
All lanes : HRP labelled goat anti-rabbit IgG at 1/2000 dilution
Predicted band size: 91 kDa
Immunocytochemistry/Immunofluorescence analysis of HaCaT (Human keratinocyte cell line) labelling Topoisomerase I with purified ab131166 at 1/500. Cells were fixed with 4% PFA and permeabilized with 0.1% triton X-100. ab150077 Goat anti rabbit IgG (Alexa Fluor® 488) at 1/1000 was used as the secondary antibody. Nuclei were counterstained with DAPI. PBS was used instead of the primary antibody as the negative control.
Immunofluorescent analysis of MCF7 cells labelling Topoisomerase I with ab131166 at 1/250 dilution.
Equilibrium disassociation constant (KD)
Learn more about KD
Click here to learn more about KD
ab131166 has not yet been referenced specifically in any publications.