Green fluorescent protein (GFP) is a 27kD protein which was originally identified in the photo organs of Aequorea victoria (A. victoria) jellyfish. GFP is a naturally fluorescent protein which emits green light at a maximum wavelength of 509 nm when excited by blue or UV light. In A.victoria, calcium ions bind and activate the protein aequorin causing the release of blue fluorescence, which is then absorbed by GFP resulting in the release of green fluorescence. In the laboratory, the GFP protein has been used extensively as a reporter molecule to label, and study, cellular and subcellular proteins in living cells using a wide range of biological applications, including oncology, cardiovascular diseases, brain research and embryology, just to name a few. For the quantitation of the expression of a specific protein, tagged with GFP in these model systems, antibodies to GFP have proven to be of value in immunoblotting studies and ELISA protocols.
The GFP antiserum is directed against native green fluorescent protein from A.victoria jellyfish. The antibody recognises not only the native GFP, but also recombinant protein (E.Coli), native GFP-fusion proteins and all variants of GFP tested. Cross reactivity with E.coli. proteins is minimal.
Western Blotting, ELISA
The anti-GFP antibody is a chicken polyclonal antiserum obtained from whole egg yolk of chickens immunised with highly purified native GFP derived from Aequorea victoria jellyfish.
Each vial contains 100µl 1 mg/ml polyclonal antiserum in 10 mM TRIS buffer pH 8.0, containing 0,15 mM NaCl and 0.02% sodium azide. The antibodies were purified by ammonium sulfate precipitation.
Aequoria Victoria (native) GFP, recombinant (E.Coli) and native GFP-fusion proteins, and all variants of GFP tested.
Store at 4oC, or in small aliquots at -20oC.