GFAP Antibody


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

Product Details

Reactivity Hu, BvSpecies Glossary
Applications IHC

Order Details

GFAP Antibody Summary

This GFAP Antibody was developed against glial fibrillary protein isolated from cow spinal cord.
Astrocyte Marker
IgG2a Kappa
Affinity purified
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  • 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.
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.
GFAP Overexpression Lysate
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NB120-16997 in the following applications:

Packaging, Storage & Formulations

Store at 4C.
PBS (pH 7.4), 0.2% BSA, Tween-20
0.05% Sodium Azide
Affinity purified

Alternate Names for GFAP Antibody

  • FLJ45472
  • GFAP astrocytes
  • GFAP
  • glial fibrillary acidic protein


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).


1. Yang, Z., & Wang, K. K. (2015). Glial fibrillary acidic protein: from intermediate filament assembly and gliosis to neurobiomarker. Trends in Neurosciences.

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.

3. Potokar, M., Morita, M., Wiche, G., & Jorgacevski, J. (2020). The Diversity of Intermediate Filaments in Astrocytes. Cells.

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.


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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Publications for GFAP Antibody (NB120-16997)(2)

We have publications tested in 1 confirmed species: Rat.

We have publications tested in 1 application: IHC-P.

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FAQs for GFAP Antibody (NB120-16997). (Showing 1 - 1 of 1 FAQs).

  1. 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?
    • 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.

Control Lysate(s)

Secondary Antibodies


Isotype Controls

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Successful Transplantation of Friedreich Ataxia Induced Pluripotent Stem Cell (iPSC)-Derived Sensory Neurons in Dorsal Root Ganglia of Adult Rodents
Jamshed Arslan, Pharm D, PhD The dorsal root ganglia (DRG) are a collection of cell bodies of sensory nerves carrying sensory information – including nociception, mechanoreception and proprioception – from periphera...  Read full blog post.

Astrocytes: Diversity in type and function
By Michalina Hanzel, PhDAstrocytes are a type of macroglia found in the central nervous system that regulate a vast array of essential brain functions, ranging from synaptogenesis, ion homeostasis and maintenance of t...  Read full blog post.

Role of GFAP in astrocytes: Lessons from induced pluripotent stem cells in Alexander disease patients
By Michalina Hanzel, PhDAlexander disease is a progressive and fatal neurological disease with phenotypes ranging from myelination abnormalities, gait ataxia and megalencephaly to predisposition to seizures. It is an ...  Read full blog post.

Deriving neural precursor cells from human induced pluripotent stem cells
By Jennifer Sokolowski, MD, PhD.Human induced pluripotent stem cells (iPSCs) can be used to create models of human organ systems and are useful for a) ascertaining the mechanisms underlying pathological conditions...  Read full blog post.

Identifying tumoral and stromal transcriptomes that underlie tumor plasticity and stromal neuroinflammatory response in brain metastasis
By Jamshed Arslan, Pharm. D., PhD. Cancers in the brain often come from tumors elsewhere in the body. Several adaptive mechanisms influence brain metastasis, such as blood brain barrier leakage that can be induced by ...  Read full blog post.

Beta Tubulin III and neurogenesis
Beta tubulin III, also known as Tuj-1, is a class III member of the beta tubulin protein family. Beta tubulins are one of two structural components that form our microtubule network. While general tubulins play a role in a wide range of cellular pr...  Read full blog post.

The identification of dopaminergic neurons using Tyrosine Hydroxylase in Parkinson's research and LRRK2
Tyrosine hydroxylase (TH) is a crucial enzyme involved in the biosynthesis of dopamine, norepinephrine and epinephrine in the brain.  Specifically, TH catalyzes the conversion of l-tyrosine to l-dihydroxyphenylalanine (l-dopa).  The importance of t...  Read full blog post.

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Glial Fibrillary Acidic Protein (GFAP), The Most Popular Astrocyte Marker
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Nestin: Investigating the Link Between New Brain Cells and Depression
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Gene Symbol GFAP