8GZL

Crystal structure of Cd2+-bound DNA aptamer

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)	25-mer DNA	polymer	25	7691.9	4		synthetic construct
2	E, F, H, J, K (A, B, C, D)	CADMIUM ION	non-polymer		112.4	5	Chemie (CD)
3	G, I (A, B)	BARIUM ION	non-polymer		137.3	2	Chemie (BA)
4	L, M (A, C)	water	water		18.0	3	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	30767.7
Non-Polymers*	Number of molecules	7
	Total formula weight	836.7
All*	Total formula weight	31604.4

*Water molecules are not included.