GFAP Antibody

Novus Biologicals, part of Bio-Techne | Catalog # NBP1-05198

Novus Biologicals, part of Bio-Techne
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NBP1-05198-0.025ml
NBP1-05198
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Key Product Details

Species Reactivity

Validated:

Human, Mouse, Rat, Porcine, Bovine, Equine

Cited:

Human, Mouse, Rat

Applications

Validated:

Immunocytochemistry/ Immunofluorescence, Immunohistochemistry, Immunohistochemistry Free-Floating, Immunohistochemistry-Frozen, Western Blot

Cited:

IF/IHC, IHC-F, Immunocytochemistry/ Immunofluorescence, Immunohistochemistry, Immunohistochemistry-Frozen, Multiplex Immunoassay, Western Blot

Label

Unconjugated

Antibody Source

Polyclonal Chicken IgY

Concentration

Please see the vial label for concentration. If unlisted please contact technical services.

View all GFAP Antibodies »

Product Specifications

Immunogen

This GFAP Antibody was developed against recombinant full length human GFAP isotype 1 expressed in and purified from E. coli.

Reactivity Notes

Use in Mouse reported in scientific literature (PMID:34525348). .

Marker

Astrocyte Marker

Clonality

Polyclonal

Host

Chicken

Isotype

IgY

Theoretical MW

50 kDa.
Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors.

Scientific Data Images for GFAP Antibody

Immunohistochemistry Free-Floating: GFAP Antibody [NBP1-05198]

Immunohistochemistry Free-Floating: GFAP Antibody [NBP1-05198]

Immunohistochemistry Free-Floating: GFAP Antibody [NBP1-05198] - Staining of a section of mouse hippocampus stained with chicken pAb to GFAP, NBP1-05198, dilution 1:5000 in green and costained with rabbit pAb to FOX3/NeuN, dilution 1:5000, in red. The blue is DAPI staining of nuclear DNA. Following transcardial perfusion with 4% paraformaldehyde, mouse brain was post fixed for 24 hours, cut to 45 uM, and free-floating sections were stained with the above antibodies. The GFAP antibody stains a network of astroglial cells while the Fox3/NeuN antibody stains the nuclei and proximal perikarya of neurons.
Western Blot: GFAP Antibody [NBP1-05198]

Western Blot: GFAP Antibody [NBP1-05198]

Western Blot: GFAP Antibody [NBP1-05198] - Analysis of whole brain lysates using chicken pAb to GFAP, NBP1-05198, dilution 1:5000 in green: [1] protein standard (red), [2] rat brain, [3] mouse brain. The strong band at about 50 kDa corresponds to the GFAP protein. Smaller proteolytic fragments and alternate transcripts of GFAP may also be detected on such blots.

Applications for GFAP Antibody

Application
Recommended Usage

Immunocytochemistry/ Immunofluorescence

1:1000 - 1:5000

Immunohistochemistry

1:1000 - 1:5000

Immunohistochemistry Free-Floating

1:1000 - 1:5000

Immunohistochemistry-Frozen

1:1000 - 1:5000

Western Blot

1:5000
Application Notes
This GFAP Antibody is useful for Immunocytochemistry/Immunofluorescence, Western blot, and Immunohistochemistry. Use this antibody at about 1:1000 using fluorescent secondary antibodies or 1:5000 using peroxidase or other enzyme linked methods. In Western Blot expect to see a band at 55 kDa and another at about 48 kDa, a breakdown product of the 55 kDa band. Use in IHC-Fr reported in scientific literature (PMID: 30260321).

Reviewed Applications

Read 1 review rated 4 using NBP1-05198 in the following applications:

Formulation, Preparation, and Storage

Purification

IgY purified

Formulation

Supplied as concentrated total IgY preparation from egg yolk. Exact concentration of target specific IgY is not quantifiable as the preparation contains both immune IgY specific for the target and also irrelevant, non-immune IgY.

Preservative

0.035% Sodium Azide

Concentration

Please see the vial label for concentration. If unlisted please contact technical services.

Shipping

The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.

Stability & Storage

Store at 4C short term. Aliquot and store at -20C long term. Avoid freeze-thaw cycles.

Background: GFAP

Glial fibrillary acidic protein (GFAP) is a class III intermediate filament protein that is largely expressed in astrocytes in addition to non-myelinating Schwann cells and glial cells (1,2). Other members of the type III intermediate filament family include desmin, peripherin, and vimentin (2-4). GFAP was first identified in the brains of multiple sclerosis patients (2). Human GFAP protein is 432 amino acids in length with a theoretical molecular weight of ~50 kDa (1,3). GFAP has at least 10 known isoforms, with the most prevalent and common in the brain being GFAP-alpha which is made of a head domain, a rod domain with four coils (1A, 1B, 2A, 2B) joined by linker regions, and a tail domain (1). GFAP is a marker of mature astrocytes, but is also expressed throughout development in both fetal and adult neural stem cells (2). While the exact function of GFAP is still elusive, it has been shown to play a role in cellular processes such as migration, mitosis, structural integrity, and signaling (2).

An increase in GFAP levels is often associated with neuroinflammation which results in the activation and proliferation of astroglia cell population (1,2). GFAP expression is also observed in brains of patients with neurodegenerative diseases including Alzheimer's and Parkinson's, epilepsy disorders, and brain injuries (1-4). Lesion sites associated with neurodegeneration can exhibit an array of gliosis characteristics from glial scarring with reduced astrocyte proliferation to activated, GFAP-positive astrocytes surrounding amyloid plaques (2). Furthermore, the GFAP gene is a target of single nucleotide polymorphisms in the coding region, considered a gain-of-function mutation, characterized by astrocytic inclusions, termed Rosenthal fibers, resulting in Alexander Disease (1-4). GFAP is also a center of many post-translational modifications, such as phosphorylation, which can alter various aspects of filament assembly (1,4).

References

1. Yang, Z., & Wang, K. K. (2015). Glial fibrillary acidic protein: from intermediate filament assembly and gliosis to neurobiomarker. Trends in Neurosciences. https://doi.org/10.1016/j.tins.2015.04.003

2. Hol, E. M., & Capetanaki, Y. (2017). Type III Intermediate Filaments Desmin, Glial Fibrillary Acidic Protein (GFAP), Vimentin, and Peripherin. Cold Spring Harbor Perspectives in Biology. https://doi.org/10.1101/cshperspect.a021642

3. Potokar, M., Morita, M., Wiche, G., & Jorgacevski, J. (2020). The Diversity of Intermediate Filaments in Astrocytes. Cells. https://doi.org/10.3390/cells9071604

4. Viedma-Poyatos, a., Pajares, M. A., & Perez-Sala, D. (2020). Type III intermediate filaments as targets and effectors of electrophiles and oxidants. Redox Biology. https://doi.org/10.1016/j.redox.2020.101582

Long Name

Glial Fibrillary Acidic Protein

Alternate Names

ALXDRD, FLJ45472, GFAP, GFAP astrocytes, glial fibrillary acidic protein

Entrez Gene IDs

2670 (Human); 14580 (Mouse); 24387 (Rat)

Gene Symbol

GFAP

UniProt

Q28115 (Bovine)

Additional GFAP Products

Product Documents for GFAP Antibody

Product Datasheets

Certificate of Analysis

To download a Certificate of Analysis, please enter a lot number in the search box below.

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Product Specific Notices for GFAP Antibody

Chicken products cannot be exported to Canada.

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

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