Tau is a neuronal microtubule-associated protein found predominantly on axons.
The function of tau is to promote tubulin polymerization and stabilize microtubules.
Tau, in its hyper-phosphorylated form, is the major component of paired helical filaments (PHF), the building block of neurofibrillary lesions in Alzheimer’s disease (AD) brain.
Hyper-phosphorylated tau is also found in neurofibrillary lesions in a range of other central nervous system disorders.
Hyper-phosphorylation impairs the microtubule binding function of tau, resulting in the destabilization of microtubules in AD brains, ultimately leading to the degeneration of the affected neurons.
Numerous serine/threonine kinases, including GSK-3b, protein kinase A (PKA), cyclin-dependent kinase 5 (cdk5) and casein kinase II, phosphorylate tau.
Serine 262 can be phosphorylated by GSK-3b, PKA, CamKII and MARK and has been found to be a major site in AD brain.
This antibody, combined with Tau [pS356]), enables one to distinguish between phosphorylation at the two distinct residues, rather than a combined epitope as detected by 12E8 antibody.
Applications:Suitable for use in Western Blot.
Other applications not tested.
Recommended Dilution:Western Blot: 1:1000Optimal dilutions to be determined by the researcher.
Positive Control:Recombinant human Tautreated, or untreated with PKA or African green monkey kidney (CV-1) cells, stably expressing human four repeat tau and SV40 small T antigen to induce specific inhibition of PP2A.
Storage and Stability:May be stored at 4°C for short-term only.
For long-term storage, store at -20°C.
Aliquots are stable for at least 12 months at -20°C.
For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.
Further dilutions can be made in assay buffer.
仕様
Size:10Blots
Host:rabbit
Source Antibody:human
Grade:Affinity Purified
Purity:Purified by immunoaffinity chromatography.
Form:Supplied as a liquid in DPBS (without Mg2+ and Ca2+), 1mg/ml BSA (IgG, protease free), pH 7.3, 0.05% sodium azide, 50% glycerol. Also available without azide, BSA, glycerol. See T1032-60A.
Specificity:Recognizes non-phosphorylated and phosphorylated human Tau. Species Sequence Homology: bovine, goat, baboon and monkey (100%); mouse and rat (92%).
Isotype:IgG
Calc Applications Abbrev:WB
Calc Crossreactivity:Hu
Immunogen:Synthetic phosphopeptide derived from the region of human tau that contains serine 262.