4W90

Crystal structure of Bacillus subtilis cyclic-di-AMP riboswitch ydaO

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	B	U1 small nuclear ribonucleoprotein A	polymer	91	10693.0	1	UniProt (P09012) Pfam (PF00076) In PDB	Homo Sapiens	U1A
2	C	riboswitch a pseudo-dimeric RNA	polymer	119	38299.7	1		BACILLUS SUBTILIS
3	C	(2R,3R,3aS,5R,7aR,9R,10R,10aS,12R,14aR)-2,9-bis(6-amino-9H-purin-9-yl)octahydro-2H,7H-difuro[3,2-d:3',2'-j][1,3,7,9,2,8 ]tetraoxadiphosphacyclododecine-3,5,10,12-tetrol 5,12-dioxide	non-polymer		658.4	2	Chemie (2BA)
4	C	MAGNESIUM ION	non-polymer		24.3	5	Chemie (MG)

Sequence modifications

B: 6 - 96 (UniProt: P09012)

PDB	External Database	Details
His 31	Tyr 31	engineered mutation
Arg 36	Gln 36	engineered mutation

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	48992.7
Non-Polymers*	Number of molecules	7
	Total formula weight	1438.3
All*	Total formula weight	50431.0

*Water molecules are not included.