D-Retro-Inverso Peptide Engineering

Why flipping the sequence and swapping the chirality creates a protease-proof peptide.

designed for stability

Natural peptides are broken down within minutes in the body. The D-retro-inverso modification is the engineering solution that gives FOXO4-DRI the stability to reach its target and do its job. This unit explains exactly how that works.

DRI Structure Visualizer

Compare L-peptide and D-retro-inverso structures to see how chirality and sequence reversal preserve binding geometry.

dri structure visualizer

Knowledge Check

Test your understanding of DRI peptide engineering and protease resistance.

Practice

Solidify the structural concepts before moving to mechanism of action.