4HCC

The zinc ion bound form of crystal structure of E.coli ExoI-ssDNA complex

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	Exodeoxyribonuclease I	polymer	481	55381.5	2	UniProt (P04995) Pfam (PF00929) Pfam (PF08411) In PDB	Escherichia coli	Exonuclease I, DNA deoxyribophosphodiesterase, dRPase
2	C, D	DNA (5'-D(*AP*AP*AP*AP*AP*AP*AP*AP*AP*AP*AP*A)-3')	polymer	12	3713.5	2
3	A, B	SULFATE ION	non-polymer		96.1	7	Chemie (SO4)
4	A, B	ZINC ION	non-polymer		65.4	2	Chemie (ZN)
5	A, B	ISOPROPYL ALCOHOL	non-polymer		60.1	3	Chemie (IPA)
6	C, D	PHOSPHATE ION	non-polymer		95.0	2	Chemie (PO4)
7		water	water		18.0	20	Chemie (HOH)

Sequence modifications

A, B: 1 - 475 (UniProt: P04995)

PDB	External Database	Details
Asp 472	Glu 472	SEE REMARK 999
His 476	-	expression tag
His 477	-	expression tag
His 478	-	expression tag
His 479	-	expression tag
His 480	-	expression tag
His 481	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	118190.0
Non-Polymers*	Number of molecules	14
	Total formula weight	1173.5
All*	Total formula weight	119363.4

*Water molecules are not included.