2R22

Structure of the native RNA tridecamer r(GCGUUUGAAACGC) at 1.5 A (NatMn)

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(*GP*CP*GP*UP*UP*UP*GP*AP*AP*AP*CP*GP*C)-3')	polymer	13	4157.5	2
2	C, D, E, G (A, B)	SODIUM ION	non-polymer		23.0	4	Chemie (NA)
3	F (A)	MANGANESE (II) ION	non-polymer		54.9	1	Chemie (MN)
4	H, I (A, B)	water	water		18.0	145	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	8315.0
Non-Polymers*	Number of molecules	5
	Total formula weight	146.9
All*	Total formula weight	8461.9

*Water molecules are not included.