4QTS

Crystal structure of Csm3-Csm4 subcomplex in the type III-A CRISPR-Cas interference complex

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	CRISPR type III-associated RAMP protein Csm4	polymer	376	43922.5	2	UniProt (Q59062) Pfam (PF03787) Pfam (PF17953) In PDB	Methanocaldococcus jannaschii DSM 2661	CRISPR type III-A/Mtube-associated RAMP protein Csm4
2	C, D	CRISPR type III-associated RAMP protein Csm3	polymer	268	30377.7	2	UniProt (Q59063) Pfam (PF03787) In PDB	Methanocaldococcus jannaschii DSM 2661	CRISPR type III-A/Mtube-associated RAMP protein Csm3
3	C, D	ZINC ION	non-polymer		65.4	2	Chemie (ZN)

Sequence modifications

C, D: 1 - 248 (UniProt: Q59063)

PDB	External Database	Details
Met -19	-	expression tag
Gly -18	-	expression tag
Ser -17	-	expression tag
Ser -16	-	expression tag
His -15	-	expression tag
His -14	-	expression tag
His -13	-	expression tag
His -12	-	expression tag
His -11	-	expression tag
His -10	-	expression tag
Ser -9	-	expression tag
Ser -8	-	expression tag
Gly -7	-	expression tag
Leu -6	-	expression tag
Val -5	-	expression tag
Pro -4	-	expression tag
Arg -3	-	expression tag
Gly -2	-	expression tag
Ser -1	-	expression tag
His 0	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	148600.5
Non-Polymers*	Number of molecules	2
	Total formula weight	130.8
All*	Total formula weight	148731.3

*Water molecules are not included.