ISDA: 3EB8

Deposition Date 2008-08-27

Release Date 2008-09-30

Last Version Date 2024-02-21

Entry Detail

PDB ID:

3EB8

Keywords:

HYDROLASE

Title:

VirA

Biological Source:

Source Organism(s):

Shigella flexneri (Taxon ID: 623)

Expression System(s):

Escherichia coli

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.40 Å

R-Value Free:

0.26

R-Value Work:

0.21

R-Value Observed:

0.22

Space Group:

P 41 21 2

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Macromolecular Entities

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Cysteine protease-like virA
Gene (Uniprot):virA
Chain IDs:A, B
Chain Length:358
Number of Molecules:2
Biological Source:Shigella flexneri

UniProt ID:Q7BU69 Pfam ID:PF06872

Primary Citation

Structural and functional studies indicate that Shigella VirA is not a protease and does not directly destabilize microtubules.

Germane, K.L, Ohi, R, Goldberg, M.B, Spiller, B.W.Show

Biochemistry 47 10241 10243 (2008)

PMID: 18763811 DOI: 10.1021/bi801533k

Abstact

VirA, an essential virulence factor in Shigella disease pathogenesis, is involved in the uptake, motility, and cell-to-cell spread of Shigella organisms within the human host. These functions have been attributed to a VirA protease activity and a mechanism of microtubule destruction via tubulin degradation [Yoshida, S., et al. (2006) Science 314, 985-989]. We report functional and crystallographic data indicating a novel VirA structure that lacks these activities but highlights the homology to the EspG virulence factor of pathogenic Escherichia coli.

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Protein

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Primary Citation of related structures

Abstact

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