4P97

Functional conservation despite structural divergence in ligand-responsive RNA switches

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, C	RNA (5'-R(*CP*GP*UP*CP*UP*AP*CP*CP*CP*AP*CP*CP*UP*CP*GP*C)-3')	polymer	16	4969.0	2		Seneca valley virus
2	B, D	RNA (5'-R(*CP*GP*AP*GP*AP*GP*GP*AP*CP*GP*G)-3')	polymer	11	3624.3	2		Seneca valley virus
3	A, C	CALCIUM ION	non-polymer		40.1	2	Chemie (CA)
4		water	water		18.0	111	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	17186.5
Non-Polymers*	Number of molecules	2
	Total formula weight	80.2
All*	Total formula weight	17266.7

*Water molecules are not included.