4U78

Octameric RNA duplex soaked in copper(II)chloride

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	B, A	RNA (5'-R(*UP*CP*GP*UP*AP*CP*GP*A)-3')	polymer	8	2526.6	2		synthetic construct
2	B, A	COPPER (II) ION	non-polymer		63.5	2	Chemie (CU)
3	A	CALCIUM ION	non-polymer		40.1	2	Chemie (CA)
4		water	water		18.0	78	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	207.2
All*	Total formula weight	5260.4

*Water molecules are not included.