4U3O

Octameric RNA duplex soaked in manganese(II)chloride

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B (A, B)	RNA (5'-R(*UP*CP*GP*UP*AP*CP*GP*A)-3')	polymer	8	2526.6	2		synthetic construct
2	C, D, E, F (A, B)	MANGANESE (II) ION	non-polymer		54.9	4	Chemie (MN)
3	G, H (A, B)	water	water		18.0	65	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	5053.1
Non-Polymers*	Number of molecules	4
	Total formula weight	219.8
All*	Total formula weight	5272.9

*Water molecules are not included.