4XHE

Crystal Structure of A-AChBP in complex with pinnatoxin A

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...	Soluble acetylcholine receptor	polymer	217	24727.5	10	UniProt (Q8WSF8) Pfam (PF02931) In PDB	Aplysia californica (California sea hare)
2	A, B, C, D, E...	Pinnatoxin A	non-polymer		711.9	10	Chemie (40P)
3	B, D, I	CALCIUM ION	non-polymer		40.1	3	Chemie (CA)
4	E, J	CHLORIDE ION	non-polymer		35.5	2	Chemie (CL)
5		water	water		18.0	1841	Chemie (HOH)

Sequence modifications

A, B, C, D, E, F, G, H, I, J: 1 - 208 (UniProt: Q8WSF8)

PDB	External Database	Details
Asp -8	-	expression tag
Tyr -7	-	expression tag
Lys -6	-	expression tag
Asp -5	-	expression tag
Asp -4	-	expression tag
Asp -3	-	expression tag
Asp -2	-	expression tag
Lys -1	-	expression tag
Leu 0	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	10
	Total formula weight	247274.8
Non-Polymers*	Number of molecules	15
	Total formula weight	7310.4
All*	Total formula weight	254585.2

*Water molecules are not included.