1ZFA

GGA Duplex A-DNA

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	5'-D(*CP*CP*TP*CP*CP*GP*GP*AP*GP*G)-3'	polymer	10	3046.0	2
2	A, B	SODIUM ION	non-polymer		23.0	3	Chemie (NA)
3	B	CALCIUM ION	non-polymer		40.1	1	Chemie (CA)
4		water	water		18.0	130	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	6092.0
Non-Polymers*	Number of molecules	4
	Total formula weight	109.0
All*	Total formula weight	6201.0

*Water molecules are not included.