Phospho-Tau (Ser413) (E4Y6M) Rabbit mAb #99220
- WB
- IP
Supporting Data
| REACTIVITY | H M R |
| SENSITIVITY | Endogenous |
| MW (kDa) | 50-80 |
| Source/Isotype | Rabbit IgG |
Application Key:
- WB-Western Blotting
- IP-Immunoprecipitation
Species Cross-Reactivity Key:
- H-Human
- M-Mouse
- R-Rat
Product Information
Product Usage Information
| Application | Dilution |
|---|---|
| Western Blotting | 1:1000 |
| Immunoprecipitation | 1:100 |
Storage
Protocol
Specificity / Sensitivity
Phospho-Tau (Ser413) (E4Y6M) Rabbit mAb recognizes endogenous levels of tau protein only when phosphorylated at Ser413.
Species Reactivity:
Human, Mouse, Rat
Source / Purification
Monoclonal antibody is produced by immunizing animals with a synthetic phosphopeptide corresponding to residues surrounding Ser413 of human tau protein.
Background
Tau is a heterogeneous microtubule-associated protein that promotes and stabilizes microtubule assembly, especially in axons. Six isoforms with different amino-terminal inserts and different numbers of tandem repeats near the carboxy terminus have been identified, and tau is hyperphosphorylated at approximately 25 sites by Erk, glycogen synthase kinase-3 (GSK-3), and CDK5 (1,2). Phosphorylation decreases the ability of tau to bind to microtubules. Neurofibrillary tangles are a major hallmark of Alzheimer's disease (AD); these tangles are bundles of paired helical filaments (PHFs) composed of hyperphosphorylated tau. In particular, phosphorylation at Ser396 by GSK-3 or CDK5 destabilizes microtubules. Furthermore, research studies have shown that inclusions of tau are found in a number of other neurodegenerative diseases, collectively known as tauopathies (1,3).
Phosphorylation of tau at ser413 is upregulated early in tau transgenic mouse models. Antibody therapeutic treatment directed to this phosphorylation site was shown to improve memory of these mice (4).
Limited Uses
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