ISDA: 4DID

Deposition Date 2012-01-30

Release Date 2012-02-29

Last Version Date 2023-09-13

Entry Detail

PDB ID:

4DID

Keywords:

HYDROLASE/HYDROLASE

Title:

Crystal structure of Salmonella effector N-terminal domain SopB in complex with Cdc42

Biological Source:

Source Organism(s):

Homo sapiens (Taxon ID: 9606)
Salmonella enterica subsp. enterica serovar Typhimurium (Taxon ID: 90371)

Expression System(s):

Escherichia coli

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.35 Å

R-Value Free:

0.23

R-Value Work:

0.20

R-Value Observed:

0.20

Space Group:

P 43 21 2

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Macromolecular Entities

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Cell division control protein 42 homolog
Gene (Uniprot):CDC42
Chain IDs:A
Chain Length:193
Number of Molecules:1
Biological Source:Homo sapiens

UniProt ID:P60953 Pfam ID:PF00071 EC:3.6.5.2

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Inositol phosphate phosphatase sopB
Gene (Uniprot):sopB
Chain IDs:B
Chain Length:152
Number of Molecules:1
Biological Source:Salmonella enterica subsp. enterica serovar Typhimurium

UniProt ID:O30916 EC:3.1.3.78

Ligand Molecules

GDP

Primary Citation

Structure of Salmonella Effector Protein SopB N-terminal Domain in Complex with Host Rho GTPase Cdc42.

Burkinshaw, B.J, Prehna, G, Worrall, L.J, Strynadka, N.C.Show

J.Biol.Chem. 287 13348 13355 (2012)

PMID: 22362774 DOI: 10.1074/jbc.M111.331330

Abstact

SopB is a type III secreted Salmonella effector protein with phosphoinositide phosphatase activity and a distinct GTPase binding domain. The latter interacts with host Cdc42, an essential Rho GTPase that regulates critical events in eukaryotic cytoskeleton organization and membrane trafficking. Structural and biochemical analysis of the SopB GTPase binding domain in complex with Cdc42 shows for the first time that SopB structurally and functionally mimics a host guanine nucleotide dissociation inhibitor (GDI) by contacting key residues in the regulatory switch regions of Cdc42 and slowing Cdc42 nucleotide exchange.

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Chemical

Disease

Primary Citation of related structures

Abstact

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