4FXM

Crystal structure of the complex of a human telomeric repeat G-quadruplex and N-methyl mesoporphyrin IX (P21212)

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	DNA (5'-D(*AP*GP*GP*GP*TP*TP*AP*GP*GP*GP*TP*TP*AP*GP*GP*GP*TP*TP*AP*GP*GP*G)-3')	polymer	22	6983.5	1		Homo sapiens
2	A	POTASSIUM ION	non-polymer		39.1	3	Chemie (K)
3	A	N-METHYLMESOPORPHYRIN	non-polymer		580.7	1	Chemie (MMP)
4		water	water		18.0	53	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	6983.5
Non-Polymers*	Number of molecules	4
	Total formula weight	698.0
All*	Total formula weight	7681.5

*Water molecules are not included.