The first G protein-coupled receptor (GPCR) to be structurally analyzed at the atomic level was _____. 09:24 Animal Biology The first G protein-coupled receptor (GPCR) to be structurally analyzed at the atomic level was _____.a. calmodulinb. insulinc. rhodopsind. cortisolAnswer: rhodopsin Learn More : Share this Share on FacebookTweet on TwitterPlus on Google+