2O5C

Structure of E. coli topoisomerase III in complex with an 8-base single stranded oligonucleotide. Frozen in glucose pH 5.5

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)	5'-D(*CP*GP*CP*AP*AP*CP*TP*T)-3'	polymer	8	2386.6	2
2	C, D (A, B)	DNA topoisomerase 3	polymer	659	74151.7	2	UniProt (P14294) Pfam (PF01751) Pfam (PF01131)	Escherichia coli	DNA topoisomerase III
3	E (D)	THYMINE	non-polymer		126.1	1	Chemie (TDR)
4	F, G (A)	CHLORIDE ION	non-polymer		35.5	2	Chemie (CL)
5	H, I, J, K (C, D, A, B)	water	water		18.0	356	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	197.0
All*	Total formula weight	153273.6

*Water molecules are not included.