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GFAP Polyclonal antibody, PBS Only

GFAP Polyclonal Antibody for WB, IHC, IF-P, IP, Indirect ELISA

Host / Isotype

Rabbit / IgG

Reactivity

human, mouse, rat

Applications

WB, IHC, IF-P, IP, Indirect ELISA

Conjugate

Unconjugated

Cat no : 23935-1-PBS

Synonyms


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Tested Applications

Recommended dilution

ApplicationDilution
It is recommended that this reagent should be titrated in each testing system to obtain optimal results.

Product Information

23935-1-PBS targets GFAP in WB, IHC, IF-P, IP, Indirect ELISA applications and shows reactivity with human, mouse, rat samples.

Tested Reactivity human, mouse, rat
Host / Isotype Rabbit / IgG
Class Polyclonal
Type Antibody
Immunogen GFAP fusion protein Ag20853 相同性解析による交差性が予測される生物種
Full Name glial fibrillary acidic protein
Calculated molecular weight 432 aa, 50 kDa
Observed molecular weight 45-50 kDa
GenBank accession numberBC013596
Gene symbol GFAP
Gene ID (NCBI) 2670
Conjugate Unconjugated
Form Liquid
Purification MethodAntigen affinity purification
Storage Buffer PBS Only
Storage ConditionsStore at -80°C.

Background Information

Function

GFAP (Glial fibrillary acidic protein) is a type III intermediate filament (IF) protein specific to the central  nervous system (CNS). GFAP is one of the  main components of the intermediate filament network in astrocytes and has been proposed as playing a role in cell migration, cell motility, maintaining mechanical strength, and in mitosis.

Tissue specificity

GFAP is expressed in central nervous system cells, predominantly in astrocytes. GFAP is commonly used as an astrocyte marker.  However, GFAP is also present in peripheral glia and in non-CNS cells, including fibroblasts, chondrocytes, lymphocytes, and liver stellate cells (PMID: 21219963).

Involvement in disease
  • Mutations in GFAP lead to Alexander disease (OMIM: 203450), an autosomal dominant CNS disorder. The mutations  present in affected individuals are thought to be gain-of-function. 

  • Upregulation of GFAP is a hallmark of reactive astrocytes, in which GFAP is present in hypertrophic cellular  processes. Reactive astrogliosis is present in many neurological disorders, such as stroke, various  neurodegenerative diseases (including Alzheimer's and Parkinson's disease), and neurotrauma. 

Isoforms

Astrocytes express 10 different isoforms of GFAP that differ in the rod and tail domains (PMID: 25726916),  which means that they differ in molecular size. Isoform expression varies during the development and across different subtypes of astrocytes. Not all isoforms are upregulated in reactive astrocytes.

Post-translational modifications

Intermediate filament proteins are regulated by phosphorylation. Six phosphorylation sites have been identified in GFAP protein, at least some of which are reported to control filament assembly (PMID: 21219963).

Cellular localization

GFAP localizes to intermediate filaments and stains well in astrocyte cellular processes.