8OEZ

Crystal structure of the Z-DNA hexamer d(CGCGCG) with Iron(II) chloride

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B (A, B)	DNA (5'-D(*CP*GP*CP*GP*CP*G)-3')	polymer	6	1810.2	2		synthetic construct
2	C, D, E, F (A, B)	FE (II) ION	non-polymer		55.8	4	Chemie (FE2)
3	G (B)	CHLORIDE ION	non-polymer		35.5	1	Chemie (CL)
4	H, I (A, B)	water	water		18.0	52	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	3620.4
Non-Polymers*	Number of molecules	5
	Total formula weight	258.8
All*	Total formula weight	3879.2

*Water molecules are not included.