2DCG

MOLECULAR STRUCTURE OF A LEFT-HANDED DOUBLE HELICAL DNA FRAGMENT AT ATOMIC RESOLUTION

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	DNA (5'-D(*CP*GP*CP*GP*CP*G)-3')	polymer	6	1810.2	2
2	A	MAGNESIUM ION	non-polymer		24.3	1	Chemie (MG)
3	A, B	SPERMINE	non-polymer		202.3	2	Chemie (SPM)
4		water	water		18.0	74	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	3620.4
Non-Polymers*	Number of molecules	3
	Total formula weight	429.0
All*	Total formula weight	4049.4

*Water molecules are not included.