green fluorescent protein

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green fluorescent protein (GFP)

a protein obtained from the jellyfish Aequorea victoria that emits a bright green fluorescence when illuminated. GFP is used to monitor gene expression, gene transfer across plasma membranes, and cell surface activity.
An intrinsically fluorescent protein from the jellyfish Aequorea victoria; gene fusions with GFP may be used to localize proteins by fluorescence microscopy or can be integrated into cloned organisms to highlight tissues of interest

green fluorescent protein (GFP)

a PROTEIN, derived from a JELLYFISH, that fluoresces in ULTRAVIOLET LIGHT. The GENE encoding GFP has been isolated and is being used as a REPORTER GENE, since it can be assayed in real time, non-destructively.