Abcam, ab195268, Anti-Bub1 antibody [EPR18947]

Size: 20µL / 100µL / 1mL
Anti-Bub1 antibody [EPR18947] (ab195268) is a rabbit monoclonal antibody detecting Bub1 in Western Blot, IHC-P, ICC/IF . Suitable for Human, Mouse, Rat . - KO validated for confirmed specificity - Biophysical QC for unrivalled batch-batch consistency
Key facts
Host species:Rabbit,
Clonality:Monoclonal,
Clone number:EPR18947,
Isotype:IgG,
Carrier free:No,
Reacts with:Mouse, Rat, Human,
Applications:ICC/IF, IHC-P, WBSee reactivity dataSee the reactivity data table below for information on validated species and application combinations.,
Immunogen:The exact immunogen used to generate this antibody is proprietary information.,
Specificity:ab195268 shows stronger signal in mouse and rat testis tissues but weaker in the human testis.

Product details:
What is this antibody validated in?
Anti-Bub1 antibody [EPR18947] (ab195268) is a rabbit recombinant monoclonal antibody and is validated for use in Western Blot (WB), Immunohistochemistry (IHC-P), Immunocytochemistry/immunofluorescence (ICC/IF) in Human, Mouse, Rat samples.
What is the molecular weight of Bub1?
Anti-Bub1 [EPR18947] (ab195268) specifically detects a band for Bub1 (UniProt: O43683) at a molecular weight of 122kDa.
Trusted by the scientific community
Anti-Bub1 [EPR18947] (ab195268) was first used in a scientific publication in 2015 and has been cited over 10 times in peer-reviewed journals.
Trial sizes available!
Test your antibody or perform pre-screening before committing to a larger quantity. Sold in 10µl.
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Specificity confirmed
The specificity of Anti-Bub1 antibody [EPR18947] (ab195268) has been confirmed by Western blot testing in BUB1 Knockout HAP1 cell line,
ab265145
Other related products
We have a range of other formats of antibody clone [EPR18947] also available for your convenience: ab195268, Carrier free -
ab251203
Patented technology
Our RabMAb
technology is a patented hybridoma-based technology for making rabbit monoclonal antibodies. For details on our patents, please refer to
RabMAb® patents
What are the advantages of a recombinant monoclonal antibody?
This product is a recombinant monoclonal antibody, which offers several advantages including:
- High batch-to-batch consistency and reproducibility
- Improved sensitivity and specificity
- Long-term security of supply
- Animal-free batch production
For more information, read more on
recombinant antibodies

Properties and Storage Information:
Form-Liquid, Purification technique-Affinity purification Protein A, Storage buffer-pH: 7.2 - 7.4Preservative: 0.01% Sodium azideConstituents: PBS, 40% Glycerol (glycerin, glycerine), 0.05% BSA, Shipped at conditions-Blue Ice, Appropriate short-term storage duration-1-2 weeks, Appropriate short-term storage conditions-+4°C, Appropriate long-term storage conditions--20°C, Aliquoting information-Upon delivery aliquot, Storage information-Avoid freeze / thaw cycle

Supplementary Information:
This supplementary information is collated from multiple sources and compiled automatically.
Bub1 protein often referred to as 'Bub1' plays a mechanical role in cell cycle regulation especially during mitosis. It is known by other names such as BUB1 mitotic checkpoint serine/threonine kinase. Bub1 has a molecular mass of approximately 120 kDa. This protein is expressed in various tissues with higher levels in rapidly dividing cells. The location of its action is mainly the nucleus where it associates with kinetochores during cell division functioning in the spindle assembly checkpoint.
Biological function summary
Bub1 protein acts as a serine/threonine-protein kinase that is essential for proper chromosome segregation. It forms part of the spindle checkpoint complex along with other proteins such as BubR1 and Mad2. This complex ensures that chromosomes are correctly attached to the spindle microtubules before anaphase begins. Bub1's kinase activity contributes to the prevention of premature anaphase onset thereby helping maintain genomic stability.
Pathways
Bub1 is significantly involved in the mitotic checkpoint pathway and the cell cycle control pathway. Within these pathways Bub1 interacts closely with proteins like CDC20 and APC/C which are integral parts of the anaphase-promoting complex. Bub1 modifies the activity of these proteins to delay anaphase onset until all chromosomes are properly aligned ensuring the fidelity of cell division.
Bub1 protein shows a connection to various cancer types notably breast cancer and colorectal cancer. Defects or overexpression in Bub1 can disrupt the spindle assembly checkpoint leading to chromosome missegregation and aneuploidy hallmarks of cancerous cells. Bub1 is also linked to other spindle checkpoint proteins such as Mad1 and Bub3. Malfunction in any of these proteins including Bub1 can contribute to tumorigenesis due to impaired cell cycle control.