1RNA

CRYSTALLOGRAPHIC STRUCTURE OF AN RNA HELIX: [U(U-A)6A]2

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*UP*AP*UP*AP*UP*AP*UP*AP*UP*AP*UP*AP*A)-3')	polymer	14	4402.6	2
2	C, D (A, B)	water	water		18.0	91	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	8805.3
All*	Total formula weight	8805.3

*Water molecules are not included.