a:  receptor proteins ~
b:  sensors
What:  
"Typical nuclear receptor proteins are like sensors, registering a specific molecular event and responding accordingly, generally by altering gene expression patterns. So, Lazar asked, "What is the purpose of having a system that responds to changes in cellular heme levels?" He hypothesized that the sensor could act to regulate heme itself."
Useful?
Writer:  Mitchell Lazar, MD, PhD, Director of Penn’s Institute for Diabetes, Obesity, and Metabolism
LCC: 
Where:
Date:   Aug 6 2017  8:15 PM
# 11353 Critique Analogy
