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- Table of Contents
TOP3B antibody (A10446-2) performs well in ELISA, IHC, WB and shows reactivity with Human, Mouse, Rat.
- Validated for inter-lot consistency, specificity, and reproducibility
- Committed to quality since 1993
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IHC analysis of TOP3B using anti-TOP3B antibody (A10446-2).
TOP3B was detected in a paraffin-embedded section of human placenta tissue. Heat mediated antigen retrieval was performed in EDTA buffer (pH 8.0, epitope retrieval solution). The tissue section was blocked with 10% goat serum. The tissue section was then incubated with 2 μg/ml rabbit anti-TOP3B Antibody (A10446-2) overnight at 4°C. Peroxidase Conjugated Goat Anti-rabbit IgG was used as secondary antibody and incubated for 30 minutes at 37°C. The tissue section was developed using HRP Conjugated Rabbit IgG Super Vision Assay Kit (Catalog # SV0002) with DAB as the chromogen.
TOP3B was detected in a paraffin-embedded section of human placenta tissue. Heat mediated antigen retrieval was performed in EDTA buffer (pH 8.0, epitope retrieval solution). The tissue section was blocked with 10% goat serum. The tissue section was then incubated with 2 μg/ml rabbit anti-TOP3B Antibody (A10446-2) overnight at 4°C. Peroxidase Conjugated Goat Anti-rabbit IgG was used as secondary antibody and incubated for 30 minutes at 37°C. The tissue section was developed using HRP Conjugated Rabbit IgG Super Vision Assay Kit (Catalog # SV0002) with DAB as the chromogen.
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Anti-TOP3B Antibody Picoband®
TOP3B antibody
| Reactive Species | Host | Application |
|---|---|---|
| Human, Mouse, Rat | Rabbit | ELISA, IHC, WB |
Tested Applications
TOP3B antibody was positively detected by WB in:
human K562 whole cell, human U-87MG whole cell, human U251 whole cell, human 293T whole cell, rat testis tissue, rat brain tissue, mouse testis tissue, mouse brain tissue
Suggested blocking solution with 5% non-fat milk or BSA; (*)Recommended protein loading: 20-40 ug per lane
TOP3B antibody was positively detected by IHC in:
human placenta tissue, human spleen tissue, human ovarian serous adenocarcinoma tissue
Use TE buffer pH 9.0 for antigen retrieval; (*) citrate buffer pH 6.0 is an alternative.
Recommend Dilution
Application
Dilution
Species
Western blot
0.25-0.5 μg/ml
Human, Mouse, Rat
Immunohistochemistry(Paraffin-embedded Section)
2-5 μg/ml
Human
ELISA
0.1-0.5 μg/ml
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* It is recommended to optimize the amount of this reagent in each experimental system to achieve the best results.
Reactive Data
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WB
IHC
IF
ELISA
Human
Tested
Tested
Recommend
Recommend
Rat
Tested
Recommend
Mouse
Tested
Recommend
Monkey
Predicted
Predicted
Predicted
Predicted
Rabbit
Predicted
Predicted
Predicted
Predicted
Dog
Predicted
Predicted
Predicted
Predicted
Bovine
Predicted
Predicted
Predicted
Predicted
Sheep
Predicted
Predicted
Predicted
Predicted
Product Information
Product Name
Anti-TOP3B Antibody Picoband®
View all TOP3B Antibodies
View all TOP3B Antibodies
Form
Lyophilized
Uniprot
Gene ID
Storage & Handling
At -20°C for one year from date of receipt.
After reconstitution, at 4°C for one month. It can also be aliquotted and stored frozen at -20°C for six months.
Avoid repeated freezing and thawing.
Host
Rabbit
Contents
Each vial contains 4 mg Trehalose, 0.9 mg NaCl, 0.2 mg Na2HPO4.
Clonality
Polyclonal
Isotype
Rabbit IgG
Immunogen
E.coli-derived human TOP3B recombinant protein (Position: E128-R824).
Cross-Reactivity
No cross-reactivity with other proteins.
Reconstitution
Adding 0.2 ml of distilled water will yield a concentration of 500 µg/ml.
Observed Molecular Weight
90-97 kDa
Calculated Molecular Weight
96.7 kDa
Background of TOP3B
DNA topoisomerase 3-beta-1 is an enzyme that in humans is encoded by the TOP3B gene. This gene encodes a DNA topoisomerase, an enzyme that controls and alters the topologic states of DNA during transcription. This enzyme catalyzes the transient breaking and rejoining of a single strand of DNA which allows the strands to pass through one another, thus relaxing the supercoils and altering the topology of DNA. The enzyme interacts with DNA helicase SGS1 and plays a role in DNA recombination, cellular aging and maintenance of genome stability. Low expression of this gene may be related to higher survival rates in breast cancer patients. This gene has a pseudogene on chromosome 22. Alternate splicing results in multiple transcript variants. Additional alternatively spliced transcript variants of this gene have been described, but their full-length nature is not known.
Cite This Product
Anti-TOP3B Antibody Picoband® (Boster Biological Technology, Pleasanton CA, USA, Catalog # A10446-2)
Antibody Homology Across Species
The results generated by this homology analysis tool for commonly used animal species are shown below. For unlisted species, please refer to the homology analysis between the immunogen sequence and the corresponding species.
A homology of ≥90% is recommended. Generally, higher homology indicates a greater potential for cross-species reactivity. However, protein expression levels may vary among different species, tissues, and cell types. Therefore, the homology analysis results are for reference only and do not guarantee antibody cross-reactivity or experimental performance.
Human
100%
High Homology
Monkey
99%
High Homology
Rabbit
96%
High Homology
Dog
96%
High Homology
Mouse
95%
High Homology
Rat
94%
High Homology
Cow
94%
High Homology
Sheep
93%
High Homology
Zebrafish
82%
Moderate Homology
Drosophila
56%
Low homology
Homology ≥ 90%High Homology
70% ≤ Homology < 90%Moderate Homology
Homology < 70%Low homology
Protocols
Western Blot protocol for TOP3B antibody
Immunohistochemistry (IHC) protocol for TOP3B antibody
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Product Promise
We promise Anti-TOP3B Antibody Picoband® performs excellently in relevant applications for ELISA, IHC, WB. If it doesn't perform as promised, we will refund the product. Learn more
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A10446-2
Buy one primary antibody get one 0.5ml HRP or Biotin secondary antibody for free.
*Sample sizes are prepared on demand and will take extra lead time. (cannot be conjugated)
$370.00
Troubleshooting
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We promise all of our products perform as described in datasheets.
This product is for Research Use Only. Not for use in diagnostic procedures.
Update date:
Oct 2, 2026