MglB Ligand Binding Mechanism Visualized with FRET Biosensor #1404151 (License: Personal Use)

This schematic depicts the conformational switch of the MglB periplasmic binding protein upon ligand (e.g., methylglyoxal) binding, monitored by Förster Resonance Energy Transfer (FRET). In the apo state (left), the protein is open with high FRET efficiency between cyan fluorescent protein (CFP) and yellow fluorescent protein (YFP) fused to its domains; ligand binding (right) induces closure, increasing interfluorophore distance and decreasing FRET. The wavy lines represent emitted light at characteristic wavelengths.

Used in scientific publications, educational materials, or biosensor development pages to explain ligand-induced conformational changes and FRET-based detection methods; matches user intent for understanding protein dynamics or designing fluorescence reporters.