3ZQQ

Crystal structure of the full-length small terminase from a SPP1-like bacteriophage

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 (A, B, C)	TERMINASE SMALL SUBUNIT	polymer	164	18069.6	3	UniProt (Q1EJR8) Pfam (PF03592) UniProt (by SIFTS) (P68928)	BACILLUS PHAGE SF6	SF6 SMALL TERMINASE G1P

Sequence modifications

A, B, C: 1 - 145 (UniProt: Q1EJR8)

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

Contents of the asymmetric unit

Polymers	Number of chains	3
	Total formula weight	54208.7
All*	Total formula weight	54208.7

*Water molecules are not included.