2WTE

The structure of the CRISPR-associated protein, Csa3, from Sulfolobus solfataricus at 1.8 angstrom resolution.

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	CSA3	polymer	244	28233.6	2	UniProt (Q97Y88) Pfam (PF22662) In PDB	SULFOLOBUS SOLFATARICUS
2	B	DI(HYDROXYETHYL)ETHER	non-polymer		106.1	1	Chemie (PEG)
3		water	water		18.0	164	Chemie (HOH)

Sequence modifications

A, B: 1 - 237 (UniProt: Q97Y88)

PDB	External Database	Details
Mse -6	-	expression tag
His -5	-	expression tag
His -4	-	expression tag
His -3	-	expression tag
His -2	-	expression tag
His -1	-	expression tag
His 0	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	56467.1
Non-Polymers*	Number of molecules	1
	Total formula weight	106.1
All*	Total formula weight	56573.2

*Water molecules are not included.