Anti-Microtubule-associated protein tau (MAPT) Antibody (2E9)

Name: Anti-Microtubule-associated protein tau (MAPT) Antibody
Brand: Biosensis
SKU: M-1703-100
Price: 327.0 USD
Availability: InStock

Our Anti-Microtubule-associated protein tau (MAPT) mouse monoclonal primary antibody detects human, mouse, other mammals (predicted), and rat Microtubule-associated protein tau (MAPT), and is affinity-purified. It is validated for use in ICC, WB.

Crude rat brain extract. Tau protein is expressed as up to 9 different isoforms of different molecular weight and so appears as multiple closely spaced bands covering the region of the blot from 48 kDa to 67 kDa.

E18 hippocampal neurons were grown for seven days. The neurons were fixed and immunostained with M-1703-100 (red channel). The cells were also stained in green with C-1377-50, our chicken antibody to alpha Internexin and DNA (blue). M-1703-100 stains the neuronal perikarya and process strongly, and does not stain non neuronal cells in these cultures. The alpha internexin antibody stains intermediate or 10nm filament bundles in the cytoplasm of these cells.

Left: Analysis of MAP-tau expression (green) in cortical neuron-glial culture from E20 rat by Immunocytochemistry. Mouse antibody to MAP-tau was used at 1:1,000 dilution. Co-staining was performed with chicken antibody to MAP2 (C-1382-50, red, 1:5,000). Blue: DAPI nuclear stain. The MAP-tau antibody stains perikarya, dendrites and axons of neurons, while the MAP2 antibody labels only dendrites and perikarya. As a result, perikarya and dendrites appear orange-yellow, since they contain both proteins. Right: Western blot analysis of MAP-tau expression in tissue lysates using mouse antibody to MAP-tau (green, 1:2,000). [1] protein standard, [2] rat brain, [3] rat spinal cord, [4] mouse brain, [5] mouse spinal cord. Tau protein is expressed as up to 9 different isoforms of different molecular weights, therefore, it appears as multiple closely spaced bands in the range from 48 kDa to 67 kDa in the CNS (lanes 2-4). In the PNS, additional higher molecular weight bands are observed (lane 5).

Crude rat brain extract. Tau protein is expressed as up to 9 different isoforms of different molecular weight and so appears as multiple closely spaced bands covering the region of the blot from 48 kDa to 67 kDa.

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Species Reactivity

Human, Mouse, Rat

Applications

ICC, WB

Host Species

Mouse

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Data Sheet

SKU: M-1703-100

Volume/Size: 100 µg

Variant

Price:

$327.00

Quantity:

Product Details

Target

Microtubule-associated protein tau (MAPT)

Scientific Background

FUNCTION: Promotes microtubule assembly and stability, and might be involved in the establishment and maintenance of neuronal polarity. The C-terminus binds axonal microtubules while the N-terminus binds neural plasma membrane components, suggesting that tau functions as a linker protein between both. Axonal polarity is predetermined by tau localization (in the neuronal cell) in the domain of the cell body defined by the centrosome. The short isoforms allow plasticity of the cytoskeleton whereas the longer isoforms may preferentially play a role in its stabilization. SUBCELLULAR LOCATION: Cytoplasm; cytosol. Cell membrane. Mostly found in the axons of neurons, in the cytosol and in association with plasma membrane components. ALTERNATIVE PRODUCTS: 8 named isoforms produced by alternative splicing. Additional isoforms seem to exist. Isoforms differ from each other by the presence or absence of up to 5 of the 15 exons. One of these optional exons contains the additional tau/MAP repeat. TISSUE SPECIFICITY: Expressed in neurons. Isoform PNS-tau is expressed in the peripheral nervous system while the others are expressed in the central nervous system. DEVELOPMENTAL STAGE: Four-repeat (type II) tau is expressed in an adult-specific manner and is not found in fetal brain, whereas three-repeat (type I) tau is found in both adult and fetal brain. DOMAIN: The tau/MAP repeat binds to tubulin. In Alzheimer disease, the neuronal cytoskeleton in the brain is progressively disrupted and replaced by tangles of paired helical filaments and straight filaments, mainly composed of hyperphosphorylated forms of Microtubule-associated protein Tau. Defects in Microtubule-associated protein Tau are a cause of frontotemporal dementia and parkinsonism linked to chromosome 17, as well as a number of other neurodegenerative diseases.

Format

Affinity-purified

Clonality

Monoclonal

Clone

2E9

Isotype

IgG1

Applications

ICC, WB

Host Species

Mouse

Molecular Weight

48 - 67 kDa

Immunogen

Recombinant full length version of the shortest human tau isoform purified from E. coli.

Immunogen Species

Human

Species Reactivity

Human, Mouse, Rat

Storage

Spin vial briefly before opening. Reconstitute with 100 µL sterile-filtered, ultrapure water to achieve a 1 mg/mL concentration. Centrifuge to remove any insoluble material. Maintain lyophilized material at 2-8°C. After reconstitution of lyophilized antibody, aliquot and store at -20°C for a higher stability. Avoid freeze-thaw cycles.

Physical State

Lyophilized

Buffer

Lyophilized from PBS buffer pH 7.2-7.6 with 0.1% trehalose, and sodium azide

Dilution Ranges

WB: 1:5000-1:10000
ICC: 1:500-1:1000

Conjugate

Unconjugated

Specificity

The antibody reacts with multiple closely spaced bands covering the region of the blot from 48 kDa to 67 kDa. It has also been used successfully for immunocytochemistry.

Usage Statement

For research use only.

Country of Origin

United States

Expiration

12 months after date of receipt (unopened vial).

Synonyms

Neurofibrillary tangle protein; Paired helical filament-tau; PHF-tau; MAPT; MTBT1; TAU

UniProt ID

P10636

Shipping

25°C (ambient)

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Anti-Microtubule-associated protein tau (MAPT) Antibody (2E9)

SKU: M-1703-100

Product Details

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