GFAP Antibody

Novus Biologicals, part of Bio-Techne | Catalog # NB120-16997

Novus Biologicals, part of Bio-Techne
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NB120-16997
NB120-16997-0.25ml
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Key Product Details

Species Reactivity

Validated:

Human, Bovine

Cited:

Rat

Applications

Validated:

Immunohistochemistry, Immunohistochemistry-Paraffin

Cited:

Immunohistochemistry-Paraffin

Label

Unconjugated

Antibody Source

Polyclonal Rabbit IgG2a Kappa

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 glial fibrillary protein isolated from cow spinal cord.

Localization

Cytoplasmic

Marker

Astrocyte Marker

Clonality

Polyclonal

Host

Rabbit

Isotype

IgG2a Kappa

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-Paraffin: GFAP Antibody [NB120-16997]

Immunohistochemistry-Paraffin: GFAP Antibody [NB120-16997]

Immunohistochemistry-Paraffin: GFAP Antibody [NB120-16997] - Formalin fixed paraffin embedded human brain stained with GFAP antibody.
Immunohistochemistry-Paraffin: GFAP Antibody [NB120-16997]

Immunohistochemistry-Paraffin: GFAP Antibody [NB120-16997]

Immunohistochemistry-Paraffin: GFAP Antibody [NB120-16997] - Formalin fixed paraffin embedded human astrocytoma stained with GFAP antibody.

Applications for GFAP Antibody

Application
Recommended Usage

Immunohistochemistry

1:50-1:250

Immunohistochemistry-Paraffin

1:50-1:250
Application Notes
IHC-P: recommended pretreatment of citrate buffer, pH 6.0. Recommended incubation time of 30 min at RT.
Please Note: Optimal dilutions of this antibody should be experimentally determined.

Formulation, Preparation, and Storage

Purification

Affinity purified

Formulation

PBS (pH 7.4), 0.2% BSA, Tween-20

Preservative

0.05% 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.

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

Additional GFAP Products

Product Documents for GFAP Antibody

Product Datasheets

Certificate of Analysis

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Product Specific Notices for GFAP Antibody

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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