8D79

Crystal structure of a four-tetrad, parallel, and Na+ stabilized Tetrahymena thermophila telomeric G-quadruplex in complex with N-methyl mesoporphyrin IX

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A (A)	DNA (5'-D(*TP*GP*GP*GP*GP*TP*TP*GP*GP*GP*GP*TP*TP*GP*GP*GP*GP*TP*TP*GP*GP*GP*GP*T)-3')	polymer	24	7655.9	1		Tetrahymena thermophila
2	B, C, D, E, F (A)	SODIUM ION	non-polymer		23.0	5	Chemie (NA)
3	G (A)	N-METHYLMESOPORPHYRIN	non-polymer		580.7	1	Chemie (MMP)
4	H, I (A)	(4S)-2-METHYL-2,4-PENTANEDIOL	non-polymer		118.2	2	Chemie (MPD)
5	J (A)	water	water		18.0	12	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	7655.9
Non-Polymers*	Number of molecules	8
	Total formula weight	932.0
All*	Total formula weight	8587.9

*Water molecules are not included.