2I9F

Structure of the equine arterivirus nucleocapsid protein

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B, C, D (A, B, C, D)	Nucleocapsid	polymer	69	7769.3	4	UniProt (Q66526) Pfam (PF01481) UniProt (by SIFTS) (P19810)	Equine arteritis virus
2	E, F (A)	GLYCEROL	non-polymer		92.1	2	Chemie (GOL)
3	G (B)	CHLORIDE ION	non-polymer		35.5	1	Chemie (CL)
4	H (B)	2,3-DIHYDROXY-1,4-DITHIOBUTANE	non-polymer		154.3	1	Chemie (DTT)
5	I, J (C)	SODIUM ION	non-polymer		23.0	2	Chemie (NA)
6	K, L, M, N (A, B, C, D)	water	water		18.0	224	Chemie (HOH)

Sequence modifications

A, B, C, D: 50 - 110 (UniProt: Q66526)

PDB	External Database	Details
Mse 1	-	cloning artifact
Ala 2	-	cloning artifact
His 3	-	expression tag
His 4	-	expression tag
His 5	-	expression tag
His 6	-	expression tag
His 7	-	expression tag
His 8	-	expression tag
Mse 75	Met 75	modified residue

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	31077.4
Non-Polymers*	Number of molecules	6
	Total formula weight	419.9
All*	Total formula weight	31497.3

*Water molecules are not included.