The jellyfish green fluorescent protein (GFP) has proven to be a usefu
l tool in protein localization and trafficking studies. Fused to GFP,
a protein of interest can be visualized and tracked in vivo through fl
uorescence microscopy. However; the process of making these fusion pro
teins is often tedious and painstaking. Here, we describe a simple and
quick method for creating GFP fusion proteins using blunt-end PCR pro
duct ligation.