3BSE

Crystal structure analysis of a 16-base-pair B-DNA

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A (A)	DNA (5'-D(*DA*DCP*DAP*DCP*DTP*DAP*DCP*DAP*DAP*DTP*DGP*DTP*DTP*DGP*DCP*DAP*DAP*DT)-3')	polymer	18	5483.6	1
2	B (B)	DNA (5'-D(*DG*DTP*DAP*DTP*DTP*DGP*DCP*DAP*DAP*DCP*DAP*DTP*DTP*DGP*DTP*DAP*DGP*DT)-3')	polymer	18	5545.6	1
3	C, D, E, F, G... (A, B)	CALCIUM ION	non-polymer		40.1	12	Chemie (CA)
4	O, P (A, B)	water	water		18.0	197	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	11029.2
Non-Polymers*	Number of molecules	12
	Total formula weight	480.9
All*	Total formula weight	11510.1

*Water molecules are not included.