2AO5

Crystal structure of an RNA duplex r(GGCGBrUGCGCU)2 with terminal and internal tandem G-U base pairs

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)	5'-R(*GP*GP*CP*GP*(5BU)P*GP*CP*GP*CP*U)-3'	polymer	10	3287.8	4
2	E (A)	MAGNESIUM ION	non-polymer		24.3	1	Chemie (MG)
3	F, G, H, I (A, B, C, D)	water	water		18.0	250	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	13151.4
Non-Polymers*	Number of molecules	1
	Total formula weight	24.3
All*	Total formula weight	13175.7

*Water molecules are not included.