• USA Home
  • ZRB2383 - Anti-GFAP Antibody, clone 2E8, ZooMAb® Rabbit Monoclonal

ZRB2383 Sigma-Aldrich

Anti-GFAP Antibody, clone 2E8, ZooMAb® Rabbit Monoclonal

Green Alternative Antibody Enhanced Validation

recombinant, expressed in HEK 293 cells

Synonym: GFAP



Related Categories 12 Principles Aligned Products, Alphabetical Index, Antibodies, Antibodies (Greener), Chemical Synthesis,
product line   ZooMAb® learn more
conjugate   unconjugated
clone   2E8, monoclonal
  recombinant monoclonal
biological source   rabbit (recombinant)
application(s)   immunocytochemistry: suitable using 1:100
  immunofluorescence: suitable using 1:100
  immunohistochemistry (formalin-fixed, paraffin-embedded sections): suitable using 1:100
  western blot: suitable using 1:1,000
species reactivity   rat, human, mouse
mol wt   calculated mol wt 49.88 kDa
  observed mol wt ~51 kDa
enhanced validation   recombinant expression
Learn more about Antibody Enhanced Validation
form   lyophilized
shipped in   ambient
storage temp.   2-8°C
packaging   antibody small pack of 25 μL
antibody form   purified antibody
isotype   IgG
recombinant   expressed in HEK 293 cells
antibody product type   primary antibodies
greener alternative product characteristics   Waste Prevention
Designing Safer Chemicals
Design for Energy Efficiency
Learn more about the Principles of Green Chemistry.
UniProt accession no.   P14136
Gene Information   human ... GFAP(2670)


General description

ZooMAb antibodies represent an entirely new generation of recombinant monoclonal antibodies.

Each ZooMAb antibody is manufactured using our proprietary recombinant expression system, purified to homogeneity, and precisely dispensed to produce robust and highly reproducible lot-to-lot consistency. Only top-performing clones are released for use by researchers. Each antibody is validated for high specificity and affinity across multiple applications, including its most commonly used application. ZooMAb antibodies are reliably available and ready to ship when you need them.

Learn more about ZooMAb here.


Clone 2E8 is a ZooMAb rabbit recombinant monoclonal antibody that specifically detects Glial fibrilary acidic protein (GFAP). It targets an epitope with in 11 amino acids from the C-terminal region.


KLH-conjugated linear peptide corresponding to 11 amino acids from the C-terminal region of human Glial fibrilary acidic protein (GFAP).


Anti-GFAP, clone 2E8, ZooMAb, Cat. No. ZRB2383, is a recombinant Rabbit Monoclonal Antibody that specifically targets Glial fibrillary acidic protein (GFAP) and has been tested for use in Immunocytochemistry, Immunohistochemistry (Paraffin), Immunfluorescence, and Western Blotting.

Immunofluorescence Analysis: A 1:100 dilution from a representative lot detected GFAP in human brain and rat brain tissue sections.

Immunocytochemistry Analysis: A 1:100 dilution from a representative lot detected GFAP in C6 glioblastoma cells and primary cultures of rat glial precursor cells.

Immunohistochemistry (Paraffin) Analysis: A 1:100 dilution from a representative lot detected GFAP in rat brain and human brain tissue sections.

Target description

Glial fibrillary acidic protein (UniProt: P14136; also known as GFAP) is encoded by the GFAP gene (Gene ID: 2670) in human. GFAP is a class-III intermediate filament that serves as a cell-specific marker that can distinguish astrocytes from other glial cells. GFAP is not detected outside the central nervous system. It is expressed in cells that lack fibronectin. GFAP is a good marker of astroglial injury where its levels are consistently upregulated. GFAP levels are also shown to be upregulated with age in rodents and humans. Hence, it can serve as a surrogate marker of aging in the brain. GFAP has a relatively slow metabolic turnover rate, which is consistent with its structural role. GFAP is composed of three distinct regions: an N-terminal head region, a central ROD region, and a C-terminal tail region. The ROD regions are highly conserved among intermediate filament proteins. However, the size and amino acid sequences of the head and tail regions can vary widely. Three different isoforms of GFAP have been described that are produced by alternative splicing. Mutations in GFAP gene are known to cause Alexander disease that is characterized by progressive failure of central myelination, usually leading to death within the first decade. This ZooMAb recombinant monoclonal antibody, generated by our propriety technology, offers significantly enhanced specificity, affinity, reproducibility, and stability over conventional monoclonals.

Physical form

Purified recombinant rabbit monoclonal antibody IgG, lyophilized in PBS with 5% Trehalose, normal appearance a coarse or translucent resin. Contains no biocide or preservatives, such as azide, or any animal by-products. Larger pack sizes provided as multiples of 25 μL.


30 μg/mL after reconstitution at 25 μL. Please refer to guidance on suggested starting dilutions and/or titers per application and sample type.

Storage and Stability

Recommend storage of lyophilized product at 2-8°C; Before reconstitution, micro-centrifuge vials briefly to spin down material to bottom of the vial; Reconstitute each vial by adding 25 μL of filtered lab grade water or PBS; Reconstituted antibodies can be stored at 2-8°C, or -20°C for long term storage. Avoid repeated freeze-thaws.


Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

Legal Information

ZooMAb is a registered trademark of Merck KGaA, Darmstadt, Germany

Safety & Documentation

Safety Information

WGK Germany 
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable


Certificate of Analysis (COA)

Please Enter a Lot Number
Protocols & Articles


Antibody Basics

Immunoglobulins (Igs) are produced by B lymphocytes and secreted into plasma. The Ig molecule in monomeric form is a glycoprotein with a molecular weight of approximately 150 kDa that is shaped more ...
Keywords: Affinity chromatography, Centrifugation, Chromatography, Digestions, Direct immunofluorescence, Gene expression, High performance liquid chromatography, Immunofluorescence, Ion Exchange, Microscopy, Precipitation, Purification, Rheumatology, Scanning electron microscopy

Related Content

Antibody Explorer | Buy Primary Antibodies & Secondary Antibodies

Primary, Secondary and Recombinant Monoclonal Antibodies Providing highly cited primary and secondary antibodies, we have you covered for your ELISA, western blot, immunohistochemistry or other assay...
Keywords: Alzheimer Disease, Cancer, Chromatin immunoprecipitation, Diagnostic, Enzyme-linked immunosorbent assay, Flow cytometry, Immunocytochemistry, Immunofluorescence, Immunohistochemistry, Neuroscience, Western blot

Related Products

Technical Service:

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Bulk Ordering & Pricing:

Need larger quantities for your development, manufacturing or research applications?