8YO9

structure of phage T4 topoisomerase II gp52 subunit WHD-open state

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B (A, B)	DNA topoisomerase medium subunit	polymer	452	51952.0	2	UniProt (P07065) Pfam (PF00521)	Escherichia phage T4	DNA topoisomerase 51-kDa subunit,Protein Gp52

Sequence modifications

A, B: 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

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	103903.9
All*	Total formula weight	103903.9

*Water molecules are not included.