GFAP (Glial Fibrillary Acidic Protein)

GFAP (Glial Fibrillary Acidic Protein) is a member of the intermediate filament protein family which includes desmin, peripherin and vimentin. It is a major protein component in multiple sclerosis plaques but is found to be up-regulated in other instances where there has been damage or the occurrence of disease to the nervous system. GFAP is expressed in cells of astrocytic lineage, peripheral ganglia, and non-myelinating Schwann cells. In addition, neural stem cells also express GFAP. GFAP runs on SDS-PAGE gels at ~55kD, usually associated with lower molecule weight bands which are thought to be proteolytic fragments and alternate transcripts from the single gene. Antibodies to GFAP are useful markers of astrocytic cells and neural stem cells. In addition many types of brain tumors, presumably derived from astrocytic cells, heavily express GFAP. Finally, Alexander's disease was recently shown to be caused by point mutations in protein coding region of the GFAP gene. All forms of Alexander disease are characterized by the presence of Rosenthal fibers, which are GFAP containing cytoplasmic inclusions found in astrocytes.\n\nApplications:\nSuitable for use in ELISA and Western Blot. Other applications not tested.\n\nRecommended Dilution:\nELISA: 1:8000\nWestern Blot: 0.1-0.3ug/ml, observed in human brain (cerebellum) and mouse brain lysates on ~50kD bands\nOptimal dilutions to be determined by the researcher.\n\nStorage and Stability:\nMay be stored at 4 degrees C for short-term only. Aliquot to avoid repeated freezing and thawing. Store at -20 degrees C. Aliquots are stable for at least 12 months. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.

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SPECIFICATIONS

Catalog Number

G2032-27Q

Size

100ug

Applications

ELISA, WB

Hosts

Goat

Reactivities

Hum, Mouse, Rat, Can

Form

Supplied as a liquid in Tris saline, 0.02% sodium azide, pH 7.3, 0.5% BSA.

P Type

Pab

Purity

Purified by immunoaffinity chromatography.

References

1. Korolainen MA, Auriola S, Nyman TA, Alafuzoff I, Pirttila T. Proteomic analysis of glial fibrillary acidic protein in Alzheimer's disease and aging brain. Neurobiol Dis. 2005 Dec;20(3):858-70. Epub 2005 Jun 27.

Additional Info

Recognizes human GFAP. Species Crossreactivity: Mouse. Species sequence homology: Canine and rat.