Gene Expression Tuning: Why More Is Not Always Better

Sun, 17 May 2026 00:00:00 +0000

One of the easiest mistakes in synthetic biology is to imagine a cell as a machine with a simple volume knob. If a gene makes a useful protein, turn the gene up. If a pathway makes too little product, push the pathway harder. If a biosensor signal is faint, make the signal brighter. The instinct is understandable, because many designs begin as diagrams where stronger arrows look like progress.

Living cells do not experience those arrows as decoration. They experience them as work.

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Gene Expression Tuning: Why More Is Not Always Better