1EN9

1A CRYSTAL STRUCTURES OF B-DNA REVEAL SEQUENCE-SPECIFIC BINDING AND GROOVE-SPECIFIC BENDING OF DNA BY MAGNESIUM AND CALCIUM.

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	DNA (5'-D(*CP*CP*AP*GP*CP*GP*CP*TP*GP*G)-3')	polymer	10	3046.0	1
2	A	MAGNESIUM ION	non-polymer		24.3	6	Chemie (MG)
3		water	water		18.0	79	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	3046.0
Non-Polymers*	Number of molecules	6
	Total formula weight	145.8
All*	Total formula weight	3191.8

*Water molecules are not included.