6P45

Crystal structure of the G-quadruplex formed by (TGGGT)4 in complex with N-methylmesoporphryin IX

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(P*TP*GP*GP*GP*TP*TP*GP*GP*GP*TP*TP*GP*GP*GP*TP*TP*GP*GP*GP*T)-3')	polymer	20	6339.1	2		Tetrahymena thermophila
2	C, D, E, G, H (A, B)	POTASSIUM ION	non-polymer		39.1	5	Chemie (K)
3	F, I (A, B)	N-METHYLMESOPORPHYRIN	non-polymer		580.7	2	Chemie (MMP)
4	J, K (A, B)	water	water		18.0	4	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	12678.1
Non-Polymers*	Number of molecules	7
	Total formula weight	1356.9
All*	Total formula weight	14035.0

*Water molecules are not included.