Raymond, J.R., Fargin, A., Lohse, M.J., Regan, J.W , Senogles, S.E., Lefkowitz, R.J. , and Caron, M.G. 1989. Iden- 
tification of the ligand-binding subunit of the human 5-hydroxytryptamine receptor with N-(p-2aido-m- 
[^25l]iodophenethyl)spiperone, a high affinity radioiodinated photoaffinity probe. Mol Pharmacol 
36:15-21. 
Regan, J.W, Kobilka, T.S., Yang-Feng, T.L., Caron, M.G. , and Lefkowitz, RJ. 1988. Cloning and expression of a 
human kidney cDNA for an a2-adrenergic receptor subtype. Proc Natl Acad Set USA 85:6301-6305. 
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