1R3O

Crystal structure of the first RNA duplex in L-conformation at 1.9A resolution

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, C (A, C)	L-RNA	polymer	8	2597.6	2
2	B, D (B, D)	L-RNA	polymer	8	2517.6	2
3	E, F, G, H (A, B, C, D)	water	water		18.0	129	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	10230.3
All*	Total formula weight	10230.3

*Water molecules are not included.