2OPO

Crystal structure of the calcium-binding pollen allergen Che a 3

Replaces:  1PMZ

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 (A, B, C, D)	Polcalcin Che a 3	polymer	86	9563.6	4	UniProt (Q84V36) Pfam (PF13499)	Chenopodium album	Calcium-binding pollen allergen Che a 3
2	E, F, G, H, K... (A, B, C, D)	CALCIUM ION	non-polymer		40.1	8	Chemie (CA)
3	I, J, M, N (B, C)	SULFATE ION	non-polymer		96.1	4	Chemie (SO4)
4	Q, R, S, T (A, B, C, D)	water	water		18.0	272	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	38254.2
Non-Polymers*	Number of molecules	12
	Total formula weight	704.9
All*	Total formula weight	38959.1

*Water molecules are not included.