Purified anti-Tau Phospho (Thr231) Antibody (Previously Covance catalog# MMS-545P)

Pricing & Availability
PHF-6 (See other available formats)
Regulatory Status
Other Names
Microtubule-associated protein tau, PHF-tau, paired helical filament-tau, neurofibrillary tangle protein, microtubule-associated protein tau, isoform 4, G protein beta1/gamma2 subunit-interacting factor 1
Covance Catalog# MMS-545P
Mouse IgG1, κ
Ave. Rating
Submit a Review
Product Citations
Cat # Size Price Quantity Check Availability Save
828903 25 µL 90€
Check Availability

Need larger quantities of this item?
Request Bulk Quote

This item is currently unavailable.

828901 100 µL 286€
Check Availability

Need larger quantities of this item?
Request Bulk Quote

This item is currently unavailable.


Paired helical filaments (PHFs) are the major building blocks of neurofibrillary lesions in Alzheimer's disease brains and are composed of hyperphosphorylated tau protein. Predominantly expressed in axons, alternatively spliced forms of tau comprise a family of microtubule-associated proteins that normally promote and stabilize the assembly of microtubules. PHF-tau differs from normal tau by its abnormal hyperphosphorylation, which results in decreased binding of tau to microtubules. The decreased affinity of PHF-tau for microtubules, coupled with reduced levels of normal tau, destabilizes microtubules leading to an impairment of axonal transport, neuronal death and the aggregation of PHFs. Therefore, hyperphosphorylation of tau is believed to be a key event in the pathogenesis of Alzheimer's disease.

Product Details
Technical Data Sheet (pdf)

Product Details

Verified Reactivity
Antibody Type
Host Species
The PHF-6 antibody was raised using PHF-tau preparations from human brain.
Phosphate-buffered solution; no preservatives or carrier proteins.
The antibody was purified by affinity chromatography.
1.0 mg/ml
Storage & Handling
The antibody solution should be stored undiluted between 2°C and 8°C. Please note the storage condition for this antibody has been changed from -20°C to between 2°C and 8°C. You can also check your vial or your CoA to find the most accurate storage condition for this antibody.


Recommended Usage

Each lot of this antibody is quality control tested by Western blotting.

The optimal working dilution should be determined for each specific assay condition.
WB: 1:1,000

Application Notes

This antibody is effective in immunoblotting (WB).

The PHF-6 antibody reacts with human tau phosphorylated at Thr 231.

Application References
  1. Lasagna-Reeves CA, Castillo-Carranza DL, Sengupta U, Sarmiento J, Troncoso J, Jackson GR, and Kayed R. Identification of oligomers at early stages of tau aggregation in Alzheimer's disease. FASEB J, 26: 1946-1959, May 2012.
  2. Mitchell TW, Nissanov J, Han LY, Mufson EJ, Schneider JA, Cochran EJ, Bennett DA, Lee VM, Trojanowski JQ, Arnold SE. Novel method to quantify neuropil threads in brains from elders with or without cognitive impairment. J Histochem Cytochem 48(12):1627-1637, 2000.
  3. Hong M, Chen D, Klein P, Lee V. Lithium reduces tau phosphorylation by inhibition of glycogen synthase kinase-3. J Biol Chem 272(40):25326-25332, 1997.
  4. Bramblett GT, Goedert M, Jakes R, Merrick SE, Trojanowski JQ, Lee VM. Abnormal tau phosphorylation at Ser396 in Alzheimer's disease recapitulates development and contributes to reduced microtubule binding. Neuron 10(6):1089-1099, 1993.
Product Citations
  1. Loeffler D, et al. 2015. Exp Gerontol. 67: 15-18. PubMed
AB_2715849 (BioLegend Cat. No. 828903)
AB_2564924 (BioLegend Cat. No. 828901)

Antigen Details

Biology Area
Cell Biology, Neurodegeneration, Neuroscience, Protein Misfolding and Aggregation
Molecular Family
Phospho-Proteins, Tau
Gene ID
4137 View all products for this Gene ID
View information about Tau Phospho Thr231 on UniProt.org

Related FAQs

There are no FAQs for this product.
Go To Top Version: 3    Revision Date: 06/09/2022

For research use only. Not for diagnostic use. Not for resale. BioLegend will not be held responsible for patent infringement or other violations that may occur with the use of our products.


*These products may be covered by one or more Limited Use Label Licenses (see the BioLegend Catalog or our website, www.biolegend.com/ordering#license). BioLegend products may not be transferred to third parties, resold, modified for resale, or used to manufacture commercial products, reverse engineer functionally similar materials, or to provide a service to third parties without written approval of BioLegend. By use of these products you accept the terms and conditions of all applicable Limited Use Label Licenses. Unless otherwise indicated, these products are for research use only and are not intended for human or animal diagnostic, therapeutic or commercial use.


BioLegend Inc., 8999 BioLegend Way, San Diego, CA 92121 www.biolegend.com
Toll-Free Phone: 1-877-Bio-Legend (246-5343) Phone: (858) 768-5800 Fax: (877) 455-9587

This data display is provided for general comparisons between formats.
Your actual data may vary due to variations in samples, target cells, instruments and their settings, staining conditions, and other factors.
If you need assistance with selecting the best format contact our expert technical support team.

  • Purified anti-Tau Phospho (Thr231)


Login / Register
Remember me
Forgot your password? Reset password?
Create an Account