Abcam, ab218314, Anti-4R Tau antibody [EPR21725]

Size: 100µL / 1mL
Anti-4R Tau antibody [EPR21725] (ab218314) is a rabbit monoclonal antibody detecting 4R Tau in Western Blot, IP, IHC-P . Suitable for Human, Mouse, Rat . - Biophysical QC for unrivalled batch-batch consistency
Key facts
Host species:Rabbit,
Clonality:Monoclonal,
Clone number:EPR21725,
Isotype:IgG,
Carrier free:No,
Reacts with:Mouse, Rat, Human,
Applications:IHC-P, WB, IPSee 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.

Product details:
What is this antibody validated in?
Anti-4R Tau antibody [EPR21725] (ab218314) is a rabbit recombinant monoclonal antibody and is validated for use in Western Blot (WB), Immunoprecipitation (IP), Immunohistochemistry (IHC-P) in Human, Mouse, Rat samples.
Trial sizes available!
Test your antibody or perform pre-screening before committing to a larger quantity. Sold in 10µl.
Discover our selection of trial-size antibodies
Other related products
We have a range of other formats of antibody clone [EPR21725] also available for your convenience: ab218314, Carrier free -
ab242333
, APC -
ab319233
, PE -
ab319381
, Alexa Fluor® 488 -
ab319515
, Alexa Fluor® 647 -
ab319628
, Alexa Fluor® 594 -
ab319732
, Alexa Fluor® 555 -
ab319874
, Alexa Fluor® 750 -
ab321398
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.
4R Tau also known as the 4-repeat tau protein plays a significant role in the stabilization of microtubules in neurons. This protein appears mainly in the human central nervous system where it assists in axonal structure and transport. 4R Tau has a molecular weight of approximately 65 kDa. The expression of 4R Tau occurs mostly in neurons although its presence can also be detected in other cell types within the brain.
Biological function summary
4R Tau is a component essential for the assembly and maintenance of neuronal microtubules. It regulates microtubule dynamics by binding and enhancing their stability important for maintaining cellular and axonal integrity. In mature neurons 4R Tau exists as part of a complex with tubulin forming an important element for axonal morphology. Its function extends further into modulating neuronal growth and signal transmission which directly impacts neural connectivity.
Pathways
4R Tau is integral within the microtubule-associated protein tau (MAPT) signaling pathways. It interacts with other proteins that influence microtubule assembly and stability such as tubulin and MAP2 playing a significant role in cytoskeletal development. Additionally 4R Tau is involved in the protein folding pathways regulated by chaperones like Heat Shock Protein 70 (Hsp70) which affect its aggregation and function within neural cells.
4R Tau is closely associated with neurodegenerative conditions such as Alzheimer's disease and frontotemporal dementia. Aberrant phosphorylation and aggregation of 4R Tau drive pathological tau tangles which disrupt neural networks and lead to cognitive decline. In Alzheimer's the protein's dysfunction is linked with amyloid-beta peptide which accelerates tau pathology progression. Similarly in frontotemporal dementia 4R Tau's abnormal activity is influenced by interactions with proteins such as TDP-43 highlighting its central role in these neurodegenerative disorders.