1EN3

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*AP*CP*GP*TP*TP*GP*G)-3')	polymer	10	3045.0	1
2	A	MAGNESIUM ION	non-polymer		24.3	4	Chemie (MG)
3		water	water		18.0	76	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	3045.0
Non-Polymers*	Number of molecules	4
	Total formula weight	97.2
All*	Total formula weight	3142.2

*Water molecules are not included.