244D

THE HIGH-RESOLUTION CRYSTAL STRUCTURE OF A PARALLEL-STRANDED GUANINE TETRAPLEX

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B, C, D, E...	DNA (5'-D(*TP*GP*GP*GP*GP*T)-3')	polymer	6	1880.3	16
2	E, I, L, M, A...	SODIUM ION	non-polymer		23.0	14	Chemie (NA)
3	L, M, N, P, A...	CALCIUM ION	non-polymer		40.1	9	Chemie (CA)
4		water	water		18.0	514	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	16
	Total formula weight	30084.0
Non-Polymers*	Number of molecules	23
	Total formula weight	682.6
All*	Total formula weight	30766.6

*Water molecules are not included.