Free interactive chemistry · SIM-BIO-001
Biomolecule builder
Build a peptide from amino acids and watch it fold into an α-helix — or unfold when heated.
Open the interactive simulation →How to use this simulation
- Tap amino acids to build a sequence; use “Remove last” or “Reset” to change it.
- Read the peptide bonds, water released and molar mass.
- Raise the temperature or change the pH to denature it.
What to notice
- Every peptide bond forms by condensation (losing water).
- Denaturing breaks hydrogen bonds, not peptide bonds.
Try this
How many water molecules are released making a pentapeptide?
Try it for free →