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The photoactivatable sterol probe [3alpha-(3)H]6-Azi-5alpha-cholestan-3beta-ol ([3H]Azicholesterol) was used to identify domains in the Torpedo californica nicotinic acetylcholine receptor (nAChR) that interact with cholesterol. [3H]Azicholesterol partitioned into nAChR-enriched membranes very efficiently (>98%), photoincorporated into nAChR subunits on an(More)
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