Anti-Glial Fibrillary Acidic Protein (GFAP)

Polyclonal Antibody

Wet Ice

The antibody has been directly tested for reactivity in human, mouse and rat. It is expected that the antibody will react with other mammalian tissues.
Western blot of rat cortex lysate showing specific immunolabeling of the ~ 50k GFAP protein.
Mixed cultures of neurons and glia stained with chicken anti-GFAP (red), and DNA (blue). Astrocytes stain strongly and specifically in a clearly filamentous fashion with this antibody.

Liquid. 10mM sodium azide.

Glial Fibrillary Acidic Protein (GFAP) was discovered by Amico Bignami and co-workers as a major fibrous protein of multiple sclerosis plaques (1). It was subsequently found to be a member of the 10nm or intermediate filament (IF) family, specifically the IF family Class III, which also includes peripherin, desmin and vimentin. GFAP is strongly and specifically expressed in astrocytes and certain other astroglia in the CNS, in satellite cells, peripheral ganglia, and in non-myelinating Schwann cells in peripheral nerves. In many damage and disease states GFAP expression is heavily upregulated in astrocytes. In addition, neural stem cells frequently strongly express GFAP. Point mutations in the protein coding region of the GFAP gene lead to Alexander disease which is characterized by the presence of abnormal astrocytes containing GFAP protein aggregates known as Rosenthal fibers (2).

Glial fibrillary acidic protein

Total IgY fraction.

Human; Mouse; Rat