7XDH

Crystal structure of a dimeric interlocked parallel G-quadruplex

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 (A, B, C, D)	DNA (5'-D(*GP*GP*GP*GP*TP*GP*GP*GP*AP*GP*GP*AP*GP*GP*GP*T)-3')	polymer	16	5140.3	4		synthetic construct
2	E, F, G, H, I... (A, B, C, D)	POTASSIUM ION	non-polymer		39.1	10	Chemie (K)
3	O, P, Q, R (A, B, C, D)	water	water		18.0	49	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	20561.2
Non-Polymers*	Number of molecules	10
	Total formula weight	391.0
All*	Total formula weight	20952.2

*Water molecules are not included.