Short Description |
Anti-4R-Tau pAb — prepared from rabbits immunized with synthetic N279D 4R-tau peptide [VQIIDKKLDLSNVQSKC] — recognizes 4R tau isoforms, regardless of deamidation as occurs extensively in AD brains. \\Validated for western blot and IHC(p), this isoform-specific tau antibody is useful for immunohistochemical and biochemical studies of tau species in diverse neurodegenerative diseases. |
Description |
Anti-4R-Tau pAb — prepared from rabbits immunized with synthetic N279D 4R-tau peptide [VQIIDKKLDLSNVQSKC] — recognizes 4R tau isoforms, regardless of deamidation as occurs extensively in AD brains. Validated for western blot and IHC(p), this isoform-specific tau antibody is useful for immunohistochemical and biochemical studies of tau species in diverse neurodegenerative diseases.Tau is a microtubule-associated protein that assembles into insoluble, filamentous, and hyperphosphorylated inclusions in many neurodegenerative diseases. The adult human brain expresses 6 distinct splice forms divided into two groups depending on the inclusion of exon 10 to generate either 3-repeat (3R) or 4-repeat (4R) isoforms. Distinct tau isoforms accumulate in diseased brains: all 6 isoforms in AD, 3R tau in Pick’ s disease, and 4R tau in PSP and CBD. Therefore, isoform-specific tau antibodies are useful tools for immunohistochemical and biochemical studies of tau species in diseased brains. Tau deposited in AD is extensively deamidated at N279. This anti-4R tau pAb specifically recognizes 4R tau isoforms regardless of deamidation and strongly stained tau in AD brain.
Specifications
- Product type primary antibody
- Immunogen synthetic N279D 4R-tau peptide (VQIIDKKLDLSNVQSKC)
- Raised in rabbit
- Source anti-serum
- Form liquid with 0.1% NaN3 as a preservative
- Volume 50 uL
- Label none
- Specificity unlabeled 4R-tau isoforms
- Cross reactivity human, mouse, rat
- Storage below -20° C. (below -70° C for prolonged storage). Aliquot to avoid cycles of freeze/thaw.
Recommended dilutions
- Western blotting 1/2000-1/5000
- Immunohistochemistry 1:3000-1/20000
- Other applications have not been tested.
- Optimal dilutions/concentrations should be determined by the end user.
References
- Hasegawa M, Watanabe S, Kondo H, et al, 3R and 4R tau isoforms in paired helical filaments in Alzheimer's disease. Acta Neuropathol. 2013 Nov 9
- Dan A, Takahashi M, Masuda-Suzukake M, et al.Extensive deamidation at asparagine residue 279 accounts for weak immunoreactivity of tau with RD4 antibody in Alzheimer's disease brain. Acta Neuropathol
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