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Render Timestamp:
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6/2/2026, 10:07:22 AM UTC
Commit: 7ed46ecc04b401f23a28df741b5078df405d23e4
XML generation date: 2026-05-14 01:35:51.326
Product last modified at: 2026-05-14T08:00:16.714Z
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PDP - Template Name: Monoclonal Antibody
PDP - Template ID: *******c5e4b77
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Recombinant: Superior lot-to-lot consistency, continuous supply, and animal-free manufacturing.

Brain-Derived Tau (F6W7C) Rabbit Monoclonal Antibody #70448

Filter:
  • WB

    Product Specifications

    REACTIVITY H
    SENSITIVITY Endogenous
    MW (kDa) 50-80
    Source/Isotype Rabbit IgG
    Application Key:
    • WB-Western Blotting 
    Species Cross-Reactivity Key:
    • H-Human 

    Product Information

    Product Usage Information

    Application Dilution
    Western Blotting 1:1000

    Storage

    Supplied in 10 mM sodium HEPES (pH 7.5), 150 mM NaCl, 100 µg/mL BSA, 50% glycerol, and less than 0.02% sodium azide. Store at –20°C. Do not aliquot the antibody.

    Protocol

    Specificity / Sensitivity

    Brain-Derived Tau (F6W7C) Rabbit Monoclonal Antibody recognizes endogenous levels of total brain-derived tau protein, including tau isoforms 2, 4, 5, 6, 7, and 8. This antibody does not cross-react with peripheral-tau isoform 1. This antibody detects a 140 kDa protein of unknown identity in some human cell lines.

    Species Reactivity:

    Human

    Source / Purification

    Monoclonal antibody is produced by immunizing animals with a synthetic peptide corresponding to residues surrounding Ala125 of human tau isoform 8.

    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).

    Brain-derived tau (BD-tau) originates from a brain-enriched MAPT splice variant that lacks exon 4a, which defines the peripheral high molecular weight isoform. BD-tau has been shown to be an effective fluid-based biomarker that selectively measures tau originating from the brain in both cerebrospinal fluid and plasma (4). Elevated plasma BD-tau levels reflect amyloid-associated neurodegeneration and, when combined with additional disease-relevant markers such as phosphorylated-tau, have the potential to stage AD and identify individuals with short-term cognitive decline and atrophy (5).

    Alternate Names

    DDPAC; FLJ31424; FTDP-17; G protein beta1/gamma2 subunit-interacting factor 1; MAPT; MAPTL; MGC138549; microtubule associated protein tau; Microtubule-associated protein tau; MSTD; MTBT1; MTBT2; Neurofibrillary tangle protein; Paired helical filament-tau; PHF-tau; PPND; PPP1R103; protein phosphatase 1, regulatory subunit 103; TAU; Tau iso8

    For Research Use Only. Not for Use in Diagnostic Procedures.
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