lac operon


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lac operon

[′lak ′äp·ə‚rän]
(genetics)
Three adjacent linked genes which code for the enzymes that act sequentially in lactose utilization in many bacteria.
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References in periodicals archive ?
First, treatment with isopropyl-[Beta]-D-thiogalactopyranoside (IPTG) was shown to induce only the lac operon, and to a lesser extent, the melibiose operon (11).
Another product IPTG induces the Lac operon, a commonly used pathway to produce proteins in fermentation systems.