8HB1

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

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A (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 (B)	RNA (30-MER)	polymer	30	9706.9	1		Streptococcus parasanguinis
3	C, D, E, H (A, B)	MAGNESIUM ION	non-polymer		24.3	4	Chemie (MG)
4	F, G (B)	BETA-NICOTINAMIDE RIBOSE MONOPHOSPHATE	non-polymer		335.2	2	Chemie (NMN)
5	I (B)	water	water		18.0	1	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	17509.5
Non-Polymers*	Number of molecules	6
	Total formula weight	767.7
All*	Total formula weight	18277.1

*Water molecules are not included.