6AU4

Crystal structure of the major quadruplex formed in the human c-MYC promoter

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(*TP*GP*AP*GP*GP*GP*TP*GP*GP*GP*TP*AP*GP*GP*GP*TP*GP*GP*GP*TP*AP*A)-3')	polymer	22	7008.5	2		Homo sapiens
2	A, B	POTASSIUM ION	non-polymer		39.1	6	Chemie (K)
3		water	water		18.0	16	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	14017.0
Non-Polymers*	Number of molecules	6
	Total formula weight	234.6
All*	Total formula weight	14251.6

*Water molecules are not included.