GFAP Antibody

Novus Biologicals | Catalog # NB100-53809

Novus Biologicals
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Key Product Details

Species Reactivity

Validated:

Human, Mouse, Rat

Cited:

Human, Mouse, Rat

Predicted:

Canine (100%). Backed by our 100% Guarantee.

Applications

Validated:

Immunohistochemistry, Immunohistochemistry-Paraffin, Immunohistochemistry-Frozen, Immunohistochemistry Free-Floating, Immunohistochemistry Whole-Mount, Western Blot, Peptide ELISA

Cited:

Immunohistochemistry-Paraffin, Immunohistochemistry-Frozen, Immunohistochemistry Free-Floating, Immunohistochemistry Whole-Mount, Western Blot, Flow Cytometry, IF/IHC

Label

Unconjugated

Antibody Source

Polyclonal Goat IgG
View all GFAP Primary Antibodies »

Product Specifications

Immunogen

This GFAP Antibody was developed against a peptide with sequence C-DGEVIKESKQEHKD corresponding to C-Terminus according to NP_002046.1.

Reactivity Notes

Mouse reactivity reported in scientific literature (PMID: 30264465). Use in rat reported in scientific literature (PMID: 32581708).

Marker

Astrocyte Marker

Specificity

GFAP is thought to help to maintain astrocyte mechanical strength, as well as the shape of cells but its exact function remains poorly understood, despite the number of studies using it as a cell marker.

Clonality

Polyclonal

Host

Goat

Isotype

IgG

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

Western Blot: GFAP Antibody [NB100-53809]

Western Blot: GFAP Antibody [NB100-53809]

Western Blot: GFAP Antibody [NB100-53809] - (0.005ug/ml) staining of Human Cerebellum (A) and (0.01ug/ml) Cerebral Cortex (B) (35ug protein in RIPA buffer). Detected by chemiluminescence.
Western Blot: GFAP Antibody [NB100-53809]

Western Blot: GFAP Antibody [NB100-53809]

Western Blot: GFAP Antibody [NB100-53809] - (0.1ug/ml) staining of Rat Brain lysate (35ug protein in RIPA buffer). Detected by chemiluminescence.

Applications for GFAP Antibody

Application
Recommended Usage

Peptide ELISA

Detection limit 1:32000

Western Blot

0.005 - 0.1ug/ml
Application Notes
Western blot: Approx 48kDa band observed in Human Cerebellum and Cerebral Cortex lysate and approx 50kDa in Rat Brain lysates and in preliminary testing of Mouse Cerebral Cortex lysate (calculated MW of 49.9kDa according to Human NP_002046.1 and Rat NP_058705.2).

Formulation, Preparation, and Storage

Purification

Immunogen affinity purified

Formulation

Tris saline (20 mM Tris pH 7.3, 150 mM NaCl), 0.5% BSA

Preservative

0.02% Sodium Azide

Concentration

0.5 mg/ml

Shipping

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

Stability & Storage

Store at -20C. 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

NP_002046.1 (Human)

Additional GFAP Products

Product Documents for GFAP Antibody

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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Protocols

Find general support by application which include: protocols, troubleshooting, illustrated assays, videos and webinars.

FAQs for GFAP Antibody

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  • Q: I am interested in native or recombinant GFAP protein without GST Tag or in urea buffer. Can I use your GFAP antibody (NB100-53809) to detect P0809, P0810 and P1691 GFAP proteins?

    A: P0809, P0810 and P1691 are blocking peptides that are not suitable for use with NB100-53809. Unfortunately, we do not carry a GFAP protein without a GST tag. I apologize for the inconvenience.

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