2O54

Structure of E. coli topoisomerase III in complex with an 8-base single stranded oligonucleotide. Frozen in glycerol at pH 7.0

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	C, D	5'-D(*CP*GP*CP*AP*AP*CP*TP*T)-3'	polymer	8	2386.6	2
2	A, B	DNA topoisomerase 3	polymer	659	74151.7	2	UniProt (P14294) Pfam (PF01751) Pfam (PF01131) In PDB	Escherichia coli	DNA topoisomerase III
3	A	CHLORIDE ION	non-polymer		35.5	2	Chemie (CL)
4	B	ACETIC ACID	non-polymer		60.1	1	Chemie (ACY)
5		water	water		18.0	207	Chemie (HOH)

Sequence modifications

A, B: 1 - 653 (UniProt: P14294)

PDB	External Database	Details
His 654	-	expression tag
His 655	-	expression tag
His 656	-	expression tag
His 657	-	expression tag
His 658	-	expression tag
His 659	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	153076.5
Non-Polymers*	Number of molecules	3
	Total formula weight	131.0
All*	Total formula weight	153207.5

*Water molecules are not included.