3QSF

The first crystal structure of a human telomeric G-quadruplex DNA bound to a metal-containing ligand (a nickel complex)

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A (X)	5'-D(*AP*GP*GP*GP*TP*TP*AP*GP*GP*GP*TP*T)-3'	polymer	12	3773.5	1
2	B, C, D (X)	POTASSIUM ION	non-polymer		39.1	3	Chemie (K)
3	E (X)	[2,2'-{(4,5-difluorobenzene-1,2-diyl)bis[(nitrilo-kappaN)methylylidene]}bis{5-[2-(piperidin-1-yl)ethoxy]phenolato-kappa O}(2-)]nickel (II)	non-polymer		663.4	1	Chemie (NUF)
4	F (X)	water	water		18.0	20	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	3773.5
Non-Polymers*	Number of molecules	4
	Total formula weight	780.7
All*	Total formula weight	4554.1

*Water molecules are not included.