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	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	A, B	POTASSIUM ION	non-polymer		39.1	9	Chemie (K)
3	A	MAGNESIUM ION	non-polymer		24.3	2	Chemie (MG)
4		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.