Ribosome Binding Site Design Lab (2D)

This simulator implements the thermodynamic model real synthetic biologists use to design ribosome binding sites: the free energy of Shine-Dalgarno pairing, spacer geometry and mRNA secondary structure combine into a single ΔG_total that sets the translation initiation rate exponentially. Drag the sliders to design a stronger or weaker RBS and watch ribosomes (cyan 30S + magenta 50S subunits) dock at the start codon on the 2D translation track at a rate that tracks the computed rate constant, walk the coding sequence laying down a peptide bead chain, and release a folded protein at the stop codon — while a queued ribosome that catches up to a slower one ahead of it gets visibly blocked, the real polysome traffic-jam effect when initiation outpaces elongation. A live gauge panel below the track breaks ΔG_total into its three components and plots the exponential TIR curve.