7XH9

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	DNA (5'-D(*GP*GP*GP*GP*TP*GP*GP*GP*CP*GP*GP*TP*GP*GP*GP*T)-3')	polymer	16	5107.3	2		synthetic construct
2	A, B	POTASSIUM ION	non-polymer		39.1	5	Chemie (K)
3	A	STRONTIUM ION	non-polymer		87.6	4	Chemie (SR)
4		water	water		18.0	41	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	10214.5
Non-Polymers*	Number of molecules	9
	Total formula weight	546.0
All*	Total formula weight	10760.5

*Water molecules are not included.