Figure 3
Possible molecular model of the rat dopamine D2 receptor. The dots show the water-accessible surface of the receptor molecule, color coded according to the electrostatic field around the protein: Blue, e < -15 kcal/mol; white, -15 kcal/mol < e < 15 kcal/mol; red, e > 15 kcal/mol. (e: electrostatic potential 1.4 Å outside the molecular surface.) (From ref. 2)
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published 2000