4R4D

Racemic crystal structure of a magnesium-bound B-DNA duplex

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	5'-D(*CP*CP*GP*GP*TP*AP*CP*CP*GP*G)-3'	polymer	10	3046.0	4		synthetic construct
2	A, B, C, D	MAGNESIUM ION	non-polymer		24.3	8	Chemie (MG)
3	C	SODIUM ION	non-polymer		23.0	1	Chemie (NA)
4		water	water		18.0	134	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	12184.0
Non-Polymers*	Number of molecules	9
	Total formula weight	217.4
All*	Total formula weight	12401.4

*Water molecules are not included.