3IQR

SAM-I riboswitch from T. tencongensis variant A94G bound with SAM

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A (A)	SAM-I riboswitch	polymer	94	30569.3	1
2	B, C, D, E, F... (A)	BARIUM ION	non-polymer		137.3	9	Chemie (BA)
3	K (A)	S-ADENOSYLMETHIONINE	non-polymer		398.4	1	Chemie (SAM)
4	L (A)	water	water		18.0	48	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	30569.3
Non-Polymers*	Number of molecules	10
	Total formula weight	1634.4
All*	Total formula weight	32203.7

*Water molecules are not included.