3QXR

Crystal structure of the brominated CKIT-1 proto-oncogene promoter quadruplex DNA

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B (A, B)	5'-D(*AP*GP*GP*GP*AP*GP*GP*GP*CP*GP*CP*(BRU)P*GP*GP*GP*AP*GP*GP*AP*GP*GP*G)-3'	polymer	22	7093.4	2		Homo sapiens
2	C, D, E, F, G... (A, B)	POTASSIUM ION	non-polymer		39.1	9	Chemie (K)
3	H, I (A)	MAGNESIUM ION	non-polymer		24.3	2	Chemie (MG)
4	N, O (A, B)	water	water		18.0	211	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	14186.8
Non-Polymers*	Number of molecules	11
	Total formula weight	400.5
All*	Total formula weight	14587.3

*Water molecules are not included.