1.   This depends on a huge number of different receptor proteins, each tuned to a different sort of chemical stimulus.

2.   According to findings published in the journal Nature, mice lacking the receptor protein for the chemical messenger serotonin just after birth exhibit abnormal anxiety as adults.

3.   In both the mouse and rat, many of the new receptor genes produce receptor proteins that seem to be dysfunctional.

4.   In the case of GIST, Gleevec hits a receptor protein on the surface of the tumor cells known as c-kit.

5.   In theory, the long gene generates a comparatively long receptor protein, and somehow that outsized receptor influences how the brain reacts to dopamine.

6.   Now scientists realize there may be as many as a hundred or more variations of a given receptor protein.

7.   Possession of the receptor protein may help biologists invent ways of fooling the anthrax toxin.

8.   Protective antigen is designed to dock onto a receptor protein that studs the surface of many cells, even though macrophages are the principal target.

9.   Progenitor, of Columbus, Ohio, specializes in work with receptor proteins that trigger the formation of the hormone.

10.   The bacterium presumably has receptor proteins on its surface that recognize and pull in any pieces of DNA from dead and dying cousins that have this unique sequence.