3SQ6

Crystal Structures of the Ligand Binding Domain of a Pentameric Alpha7 Nicotinic Receptor Chimera with its Agonist Epibatidine

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B, C, D, E... (A, B, C, D, E...)	Neuronal acetylcholine receptor subunit alpha-7, Acetylcholine-binding protein	polymer	204	23640.8	10		Homo sapiens Lymnaea stagnalis (human great pond snail)	AchBP
2	K (K)	2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose	branched		424.4	1	In PDB GlyTouCan (G42666HT)
3	AA, CA, FA, HA, L... (G, H, I, J, A...)	EPIBATIDINE	non-polymer		208.7	10	Chemie (EPJ)
4	BA, DA, EA, GA, M... (G, H, I, A, B...)	2-acetamido-2-deoxy-beta-D-glucopyranose	non-polymer		221.2	13	Chemie (NAG)
5	IA, JA, KA, LA, MA... (A, B, C, D, E...)	water	water		18.0	16	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	10
	Total formula weight	236407.9
Branched	Number of molecules	1
	Total formula weight	424.4
Non-Polymers*	Number of molecules	23
	Total formula weight	4962.6
All*	Total formula weight	241794.9

*Water molecules are not included.