User:Bcanton/RegistryObjects2

At the highest level, the registry considers this collection of objects to be a device. The inner workings of the device consists of some combination of proteins (in this case, one that binds to the small molecule), mRNA, and DNA (for example, the promoter that is regulated by the protein). Sometimes we can ignore these inner workings when talking about devices (an abstraction). This is because we are more interested in what the device does, in this case converting the concentration of a small molecule into a particular promoter activity. Hence, this device might be an AHL in, POPS out receiver. The function, inputs, outputs, and units are the main way we describe a device in the registry. Having said that, you'll always be able to see what combination of DNA, mRNA, and proteins the device uses. NEXT->