Crystal structure of a chimeric acetylcholine binding protein from Aplysia californica (Ac-AChBP) containing loop C from the human alpha 3 nicotinic acetylcholine receptor in complex with 7-(5-isopropoxy-pyridin-3-yl)-1-methyl-1,7-diaza-spiro[4.4]nonane
4zk4 is a 5 chain structure with sequence from Aplca. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
