2BYN

Crystal structure of apo AChBP from Aplysia californica

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	227	25852.7	5	UniProt (Q8WSF8) Pfam (PF02931) In PDB	APLYSIA CALIFORNICA (CALIFORNIA SEA HARE)	ACETYLCHOLINE-BINDING PROTEIN
2	A, B, D, E	TETRAETHYLENE GLYCOL	non-polymer		194.2	4	Chemie (PG4)
3	C	PENTAETHYLENE GLYCOL	non-polymer		238.3	1	Chemie (1PE)
4	E	2-acetamido-2-deoxy-beta-D-glucopyranose	non-polymer		221.2	1	Chemie (NAG)
5		water	water		18.0	882	Chemie (HOH)

Sequence modifications

A, B, C, D, E: -7 - 0 (PDB: 2BYN)
A, B, C, D, E: 1 - 219 (UniProt: Q8WSF8)

Contents of the asymmetric unit

Polymers	Number of chains	5
	Total formula weight	129263.7
Non-Polymers*	Number of molecules	6
	Total formula weight	1236.4
All*	Total formula weight	130500.1

*Water molecules are not included.