17192652 |
Jakubik J, Dolezal V: Determinants of positive cooperativity between strychnine-like allosteric modulators and N-methylscopolamine at muscarinic receptors. J Mol Neurosci. 2006;30(1-2):111-2. It has been shown previously that the third extracellular loop (o3) and its vicinity play a critical role in allosteric modulation at muscarinic acetylcholine receptors (mAChRs) (Ellis et al., 1993; Krejci and Tucek, 2001; Buller et al., 2002). In this study interaction of four chemically related substances (strychnine, its dimethoxy derivate brucine, precursor for synthesis of strychnine Wieland-Gumlich aldehyde (WGA), and precursor for synthesis of alcuronium propargyl-WGA) with orthosteric antagonist N-methylscopolamine (NMS) was investigated on the M3 subtype of mAChRs mutated at the o3 loop. |
1(0,0,0,1) |