6O6Y

Crystal structure of Csm6 in complex with cyclic-tetraadenylates (cA4) by cocrystallization of Csm6 and cA4

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	Csm6	polymer	440	49795.1	2	UniProt (B6YWC3) Pfam (PF09455) In PDB	Thermococcus onnurineus
2	A, B	2',3'- cyclic AMP	non-polymer		329.2	2	Chemie (ACK)
3	A, B	3'-O-[(R)-{[(2S,3aS,4S,6S,6aS)-6-(6-amino-9H-purin-9-yl)-2-hydroxy-2-oxotetrahydro-2H-2lambda~5~-furo[3,4-d][1,3,2]dioxaphosphol-4-yl]methoxy}(hydroxy)phosphoryl]adenosine	non-polymer		658.4	2	Chemie (LQJ)
4		water	water		18.0	109	Chemie (HOH)

Sequence modifications

A, B: 1 - 432 (UniProt: B6YWC3)

PDB	External Database	Details
Met -1	-	initiating methionine
Gly 0	-	expression tag
His 433	-	expression tag
His 434	-	expression tag
His 435	-	expression tag
His 436	-	expression tag
His 437	-	expression tag
His 438	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	99590.2
Non-Polymers*	Number of molecules	4
	Total formula weight	1975.2
All*	Total formula weight	101565.5

*Water molecules are not included.