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Skeptics were not satisfied with my demonstration on protein self-assembly, so I decided to make the experiment harder.
Last time, the magnetic “protein” parts were allowed to self-assemble mostly on their own. Critics argued that real proteins exist in a chaotic cellular environment crowded with countless other molecules that could interfere with assembly.
Fair point.
So this time, I dumped the parts into a mess of unrelated magnetic pieces to see whether the correct structures could still emerge from the noise.
In real biology, many proteins do not function alone. They assemble into larger structures called protein complexes — groups of proteins (and sometimes RNAs) that physically bind together to perform a function. Ribosomes, ATP synthase, bacterial flagella, ion channels, and countless other molecular machines are built this way.
And remarkably, they self-assemble.
No engineer reaches into the cell to snap the parts together one by one. The assembly process emerges naturally from chemistry, shape compatibility, electrical attraction, Brownian motion, and the ordinary laws of physics.
This experiment is not a perfect model of proteins. Real proteins are softer, smaller, faster But it helps visualize an important point:
Self-assembly does not require a guiding hand carefully positioning every part.
Even in the middle of molecular chaos, organized structures can emerge spontaneously.