PDBsum entry 1fr2

Immune system

PDB id: 1fr2

Contents

Protein chains

83 a.a. *

131 a.a. *

Ligands

PO4

Metals

_ZN

Waters ×171

* Residue conservation analysis

PDB id:

1fr2

Name:

Immune system

Title:

Crystal structure of the e9 dnase domain with a mutant immunity protein im9(e41a)

Structure:

Colicin e9 immunity protein. Chain: a. Synonym: imme9, microcin e9 immunity protein. Engineered: yes. Mutation: yes. Colicin e9. Chain: b. Fragment: c-terminal domain, dnase domain. Engineered: yes

Source:

Escherichia coli. Organism_taxid: 562. Expressed in: escherichia coli. Expression_system_taxid: 562.

Biol. unit:

Dimer (from PQS)

Resolution:

1.60Å R-factor: 0.205 R-free: 0.232

Authors:

U.C.Kuhlmann,A.J.Pommer,G.M.Moore,R.James,C.Kleanthous,A.M.Hemmings

Key ref:

U.C.Kuhlmann et al. Crystal structure of the e9 dnase domain with a mutant immunity protein im9(e41a). To be published, .

Date:

07-Sep-00 Release date: 17-Jun-03

Protein chain

P13479  (IMM9_ECOLX) -  Colicin-E9 immunity protein from Escherichia coli

Seq: 86 a.a.

Struc: 83 a.a.*

Protein chain

P09883  (CEA9_ECOLX) -  Colicin-E9 from Escherichia coli

Seq: 582 a.a.

Struc: 131 a.a.

* PDB and UniProt seqs differ at 1 residue position (black cross)

Enzyme reactions

• Enzyme class: Chain B: E.C.3.1.-.-