2GRB

Crystal Structure of an RNA Quadruplex Containing Inosine-tetrad

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, E...	5'-R(*(U33)P*GP*IP*GP*GP*U)-3'	polymer	6	1916.1	8
2	A, D, E, F, H	POTASSIUM ION	non-polymer		39.1	11	Chemie (K)
3	B	STRONTIUM ION	non-polymer		87.6	1	Chemie (SR)
4		water	water		18.0	178	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	8
	Total formula weight	15328.8
Non-Polymers*	Number of molecules	12
	Total formula weight	517.7
All*	Total formula weight	15846.5

*Water molecules are not included.