5NDI

The structure of the E.coli guanidine II riboswitch P1 stem-loop

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B, C, D (A, B, C, D)	RNA (5'-R(*UP*UP*UP*GP*CP*AP*GP*GP*AP*CP*GP*AP*CP*CP*UP*GP*(CBV)P*AP*AP*A)-3')	polymer	20	6485.8	4		Escherichia coli
2	E, F, H, I (A, B, C, D)	GUANIDINE	non-polymer		59.1	4	Chemie (GAI)
3	G (B)	SODIUM ION	non-polymer		23.0	1	Chemie (NA)
4	J, K (A, B)	water	water		18.0	4	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	25943.1
Non-Polymers*	Number of molecules	5
	Total formula weight	259.3
All*	Total formula weight	26202.4

*Water molecules are not included.