3SQ9

Crystal Structures of the Ligand Binding Domain of a Pentameric Alpha7 Nicotinic Receptor Chimera

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, L, M (K, L, M)	2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose	branched		424.4	3	In PDB GlyTouCan (G42666HT)
3	AA, N, O, P, Q... (J, A, B, C, D...)	2-acetamido-2-deoxy-beta-D-glucopyranose	non-polymer		221.2	14	Chemie (NAG)

Contents of the asymmetric unit

Polymers	Number of chains	10
	Total formula weight	236407.9
Branched	Number of molecules	3
	Total formula weight	1273.2
Non-Polymers*	Number of molecules	14
	Total formula weight	3096.9
All*	Total formula weight	240778.0

*Water molecules are not included.