1DCR

CRYSTAL STRUCTURE OF DNA SHEARED TANDEM G-A BASE PAIRS

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*GP*AP*AP*(BRU)P*GP*AP*GP*G)-3'	polymer	10	3158.9	2
2	A	SPERMINE	non-polymer		202.3	1	Chemie (SPM)
3	A, B	MAGNESIUM ION	non-polymer		24.3	3	Chemie (MG)
4	B	SODIUM ION	non-polymer		23.0	1	Chemie (NA)
5		water	water		18.0	87	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	6317.8
Non-Polymers*	Number of molecules	5
	Total formula weight	298.2
All*	Total formula weight	6616.1

*Water molecules are not included.