9LII

structure of phage T4 topoisomerase II central domain

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, C (C, D)	DNA topoisomerase medium subunit	polymer	452	51952.0	2	UniProt (P07065) Pfam (PF00521)	Enterobacteria phage T4 (Bacteriophage T4)	Topo II gp52 subunit,DNA topoisomerase 51-kDa subunit,Protein Gp52
2	B, D (A, B)	DNA topoisomerase large subunit,DNA topoisomerase small subunit	polymer	682	77524.7	2	UniProt (P09176) UniProt (P23992) Pfam (PF02518) Pfam (PF00204) Pfam (PF16898)	Enterobacteria phage T4 (Bacteriophage T4)	Topo II gp39 subunit,DNA topoisomerase 64-kDa subunit,Protein Gp39,Topo II gp60 subunit,DNA topoisomerase 18-kDa subunit,Protein Gp60

Sequence modifications

C, D: 1 - 442 (UniProt: P07065)

PDB	External Database	Details
His 443	-	expression tag
His 444	-	expression tag
His 445	-	expression tag
His 446	-	expression tag
His 447	-	expression tag
His 448	-	expression tag
His 449	-	expression tag
His 450	-	expression tag
His 451	-	expression tag
His 452	-	expression tag

A, B: 1 - 516 (UniProt: P09176)
A, B: 517 - 676 (UniProt: P23992)

PDB	External Database	Details
His 677	-	expression tag
His 678	-	expression tag
His 679	-	expression tag
His 680	-	expression tag
His 681	-	expression tag
His 682	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	258953.4
All*	Total formula weight	258953.4

*Water molecules are not included.