3ZQO

Crystal structure of the small terminase oligomerization core domain from a SPP1-like bacteriophage (crystal form 3)

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, E...	TERMINASE SMALL SUBUNIT	polymer	72	8067.1	18	UniProt (Q1EJR8) Pfam (PF03592) UniProt (by SIFTS) (P68928) In PDB	BACILLUS PHAGE SF6	G1P, SF6 SMALL TERMINASE G1P
2	K, R	POTASSIUM ION	non-polymer		39.1	2	Chemie (K)
3		water	water		18.0	604	Chemie (HOH)

Sequence modifications

A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R: 53 - 120 (UniProt: Q1EJR8)

PDB	External Database	Details
Gly 49	-	expression tag
Ser 50	-	expression tag
His 51	-	expression tag
Mse 52	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	18
	Total formula weight	145208.0
Non-Polymers*	Number of molecules	2
	Total formula weight	78.2
All*	Total formula weight	145286.2

*Water molecules are not included.