2GZG

Crystal Structure of the E9 DNase Domain with a Mutant Immunity Protein IM9 (Y55F)

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	Colicin-E9 immunity protein	polymer	86	9576.5	1	UniProt (P13479) Pfam (PF01320) In PDB	Escherichia coli K12	ImmE9, Microcin-E9 immunity protein
2	B	Colicin-E9	polymer	134	15120.0	1	UniProt (P09883) Pfam (PF21431) In PDB	Escherichia coli K12
3	B	ZINC ION	non-polymer		65.4	1	Chemie (ZN)
4	B	PHOSPHATE ION	non-polymer		95.0	1	Chemie (PO4)
5		water	water		18.0	404	Chemie (HOH)

Sequence modifications

A: 1 - 86 (UniProt: P13479)

PDB	External Database	Details
Phe 55	Tyr 55	engineered mutation

B: 2 - 134 (UniProt: P09883)

PDB	External Database	Details
Met 1	-	initiating methionine

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	24696.5
Non-Polymers*	Number of molecules	2
	Total formula weight	160.4
All*	Total formula weight	24856.9

*Water molecules are not included.