6WXQ

Crystal structure of CRISPR-associated transcription factor Csa3 complexed with 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 (B, A)	CRISPR-associated transcription factor Csa3 (Type I-A)	polymer	248	28148.9	2	UniProt (A0A157T189) Pfam (PF22662) UniProt (by SIFTS) (Q97Y88)	Saccharolobus solfataricus	Csa3
2	C (E)	cyclic tetraadenylate	polymer	4	1271.9	1		synthetic construct
3	D, E, F, G (A)	GLYCEROL	non-polymer		92.1	4	Chemie (GOL)
4	H, I, J (B, A, E)	water	water		18.0	284	Chemie (HOH)

Sequence modifications

B, A: 1 - 238 (UniProt: A0A157T189)

PDB	External Database	Details
Met -10	-	expression tag
His -9	-	expression tag
His -8	-	expression tag
His -7	-	expression tag
His -6	-	expression tag
His -5	-	expression tag
His -4	-	expression tag
His -3	-	expression tag
Gly -2	-	expression tag
Ala -1	-	expression tag
Ala 0	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	3
	Total formula weight	57569.6
Non-Polymers*	Number of molecules	4
	Total formula weight	368.4
All*	Total formula weight	57938.0

*Water molecules are not included.