7QUA

Duplex RNA containing Xanthosine-Cytosine base pairs

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	RNA (5'-R(*CP*GP*CP*GP*(XAN)P*AP*UP*UP*AP*GP*CP*G)-3')	polymer	12	3869.4	1		synthetic construct
2	A	SODIUM ION	non-polymer		23.0	2	Chemie (NA)
3	A	MAGNESIUM ION	non-polymer		24.3	2	Chemie (MG)
4		water	water		18.0	108	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	3869.4
Non-Polymers*	Number of molecules	4
	Total formula weight	94.6
All*	Total formula weight	3963.9

*Water molecules are not included.