Abstract:
:We have established that differing effects of alpha1-adrenergic receptor (AR) subtypes on cell proliferation are due to differential coupling to the Gs/cAMP pathway; thus, both alpha1A- and alpha1B-ARs couple to Gs, while alpha1D-AR does not. To identify the region responsible for this difference in subtype-specific Gs coupling, we constructed a series of chimeric and a set of point-mutated human alpha1A- and alpha1D-ARs, and examined their signaling ability. Here, we show that the amino acid residues Thr 136 and Val138 in the intracellular loop II of the human alpha1A-AR are intimately involved with Gs coupling.
journal_name
Biochem Biophys Res Communjournal_title
Biochemical and biophysical research communicationsauthors
Shinoura H,Shibata K,Hirasawa A,Tanoue A,Hashimoto K,Tsujimoto Gdoi
10.1016/s0006-291x(02)02589-5subject
Has Abstractpub_date
2002-11-22 00:00:00pages
142-7issue
1eissn
0006-291Xissn
1090-2104pii
S0006291X02025895journal_volume
299pub_type
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