When PKA is turned on and is physically close to a biosensor, PKA itself changes the shape of the biosensor, causing it to glow green instead.

当PK A开启时并且有酶分子贴近生物传感器时，PKA会改变生物传感器的形状，导致生物传感器发稳定的绿光。

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This week, the FTC also released some new guidelines, the first changes it has made to its green marketing guidelines since 1998.

FORBES: Gang Green: Rules Are Tightening. Don't Say Green If You Don't Mean Green.

"We need to understand better what the normal microbiome is like and what happens to it when it changes to cause or influence disease, " Dr. Green said.

WSJ: Gene Map of Body's Microbes Is New Health Tool