GFP :
- Green fluorescent protein is used as a reporter gene to study the changes of cellular processes in living cells.
- It is found in Cnidarians which exhibits bioluminescence.
- It is best suited for being a reporter gene due to its ability to generate green light without the addition of any external factors or without using any expensive equipment.
- It also have minimal toxicity, high stability and non-invasive detection.
So, yes GFP is a reporter gene.