2N9Q

Photoswitchable G-quadruplex

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B, C, D (A, B, C, D)	DNA (5'-D(*GP*GP*(AZW)P*GP*G)-3')	polymer	5	1576.1	4
2	E, F, G (A, C)	POTASSIUM ION	non-polymer		39.1	3	Chemie (K)

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	6304.4
Non-Polymers*	Number of molecules	3
	Total formula weight	117.3
All*	Total formula weight	6421.7

*Water molecules are not included.