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Cell Cycle Regulation Simulator

Interactive cell cycle simulator: watch a cell progress through G1, S, G2 and M phases while cyclin D/E/A/B and CDK activity oscillate, and see how DNA damage arrests the cycle at the G1/S, G2/M and spindle-assembly checkpoints — or triggers apoptosis.

Molecular Biology3DModerate60 FPS

This simulator visualizes the molecular control of the eukaryotic cell cycle — not just the physical act of division, but the regulatory machinery that decides whether a cell is allowed to divide at all. Watch a cell grow through G1, replicate its chromatin in S, prepare in G2, and condense its chromosomes for M, while cyclin D, E, A and B rise and fall in their characteristic sequence to drive CDK activity. Inflict DNA damage at any point and see how the G1/S, G2/M and spindle-assembly checkpoints hold the cycle arrested until the damage is repaired — or, if the damage is severe enough, trigger apoptosis instead of letting a damaged cell divide.

⚙ Under the hood

Interactive cell cycle simulator: watch a cell progress through G1, S, G2 and M phases while cyclin D/E/A/B and CDK activity oscillate in their real sequence, and see how inflicted DNA damage arrests the cycle at the G1/S, G2/M and spindle-assembly checkpoints — or triggers apoptosis when damage is severe.

Three.jsCell CycleCyclinsCDKCheckpointsMolecular Biology

3D · Three.js / WebGL renderer · 60 FPS target · runs fully client-side, no install