Green Fluorescent Protein (GFP)
Green Fluorescent Protein (GFP) — A bioluminescent protein from jellyfish used as a reporter in molecular biology, often fused to peptides to track localization in living cells.
What Is GFP?
Green fluorescent protein (GFP) is a 238-residue protein from jellyfish (Aequorea victoria) that fluoresces green (ex 488/em 509 nm) without requiring external cofactors. GFP and its variants are fused to peptides as genetically encoded fluorescent tags for tracking cellular uptake, subcellular localization, and protein-peptide interactions in live cells.
Applications
- Peptide-GFP fusions: Track CPP-mediated delivery and intracellular trafficking
- Reporter: GFP under signal-responsive promoter reports peptide-induced gene activation
- Variants: EGFP, YFP, CFP, mCherry provide spectral options for multiplexed imaging
Frequently Asked Questions
What is Green Fluorescent Protein (GFP)?
A bioluminescent protein from jellyfish used as a reporter in molecular biology, often fused to peptides to track localization in living cells.
Why is Green Fluorescent Protein (GFP) important in peptide research?
Green Fluorescent Protein (GFP) is a fundamental concept in technology as it relates to peptide science. It directly influences experimental design, compound characterization, and the reliability of research outcomes across biochemistry and molecular biology disciplines.
Authority Sources
- Green Fluorescent Protein (GFP) on Wikipedia
- Search Green Fluorescent Protein (GFP) on PubChem (NIH)
- Research articles on ScienceDirect