6KFL

Crystal structure of a two-quartet DNA G-quadruplex complexed with the porphyrin TMPyP4

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)	DNA (5'-D(*GP*GP*CP*TP*CP*GP*GP*CP*GP*GP*CP*GP*GP*A)-3')	polymer	14	4362.8	2		Pseudorabies virus Ea
2	C, D, E, F (A)	POTASSIUM ION	non-polymer		39.1	4	Chemie (K)
3	G (A)	(1Z,4Z,9Z,15Z)-5,10,15,20-tetrakis(1-methylpyridin-1-ium-4-yl)-21,23-dihydroporphyrin	non-polymer		678.8	1	Chemie (POH)
4	H (A)	COBALT HEXAMMINE(III)	non-polymer		161.1	1	Chemie (NCO)
5	I, J (A, B)	water	water		18.0	54	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	8725.6
Non-Polymers*	Number of molecules	6
	Total formula weight	996.3
All*	Total formula weight	9722.0

*Water molecules are not included.