The coloration of Citrus fruits is related with the concentration of carotenoids, isoprenoid pigments of 40 carbon atoms (C). Rodrigo et al. and Ma et al.
View Article and Find Full Text PDFHomology models of nicotinic acetylcholine receptors (nAChRs) suggest that subtype specificity is due to non-conserved residues in the complementary subunit of the ligand-binding pocket. Cytisine and its derivatives generally show a strong preference for heteromeric alpha4beta2* nAChRs over the homomeric alpha7 subtype, and the structural modifications studied do not cause large changes in their nAChR subtype selectivity. In the present work we docked cytisine, N-methylcytisine, and several pyridone ring-substituted cytisinoids into the crystallographic structure of the Lymnaea stagnalis acetylcholine binding protein (AChBP) co-crystallized with nicotine (1UW6).
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