6BST

CRYSTAL STRUCTURE OF Z-DNA WITH UNTYPICALLY COORDINATED CA2+ ION

Replaces:  6B01

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 (A)	N~1~-(3-azaniumylpropyl)butane-1,4-diaminium	non-polymer		148.3	1	Chemie (SR0)
3	D (B)	CALCIUM ION	non-polymer		40.1	1	Chemie (CA)
4	E, F (A, B)	water	water		18.0	34	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	3620.4
Non-Polymers*	Number of molecules	2
	Total formula weight	188.3
All*	Total formula weight	3808.8

*Water molecules are not included.