8HB3

Crystal structure of NAD-II riboswitch (two strands) with NR

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(*AP*GP*AP*GP*CP*GP*UP*UP*GP*CP*GP*UP*CP*CP*GP*AP*AP*AP*GP*UP*(CBV)P*GP*CP*C)-3')	polymer	24	7802.6	1		Streptococcus parasanguinis
2	B	RNA (31-MER)	polymer	31	10036.1	1		Streptococcus parasanguinis
3	A, B	Nicotinamide riboside	non-polymer		255.2	2	Chemie (NNR)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	17838.7
Non-Polymers*	Number of molecules	2
	Total formula weight	510.5
All*	Total formula weight	18349.2

*Water molecules are not included.