4dln

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Crystal structure of the CFTR inhibitory factor Cif with the D129S mutationCrystal structure of the CFTR inhibitory factor Cif with the D129S mutation

Structural highlights

4dln is a 4 chain structure with sequence from Pseudomonas aeruginosa UCBPP-PA14. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 1.55Å
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

A0A0H2ZD27_PSEAB

Publication Abstract from PubMed

Opportunistic pathogens exploit diverse strategies to sabotage host defenses. Pseudomonas aeruginosa secretes the CFTR inhibitory factor Cif and thus triggers loss of CFTR, an ion channel required for airway mucociliary defense. However, the mechanism of action of Cif has remained unclear. It catalyzes epoxide hydrolysis, but there is no known role for natural epoxides in CFTR regulation. It was demonstrated that the hydrolase activity of Cif is strictly required for its effects on CFTR. A small-molecule inhibitor that protects this key component of the mucociliary defense system was also uncovered. These results provide a basis for targeting the distinctive virulence chemistry of Cif and suggest an unanticipated role of physiological epoxides in intracellular protein trafficking.

Inhibiting an epoxide hydrolase virulence factor from Pseudomonas aeruginosa protects CFTR.,Bahl CD, Hvorecny KL, Bomberger JM, Stanton BA, Hammock BD, Morisseau C, Madden DR Angew Chem Int Ed Engl. 2015 Jul 1. doi: 10.1002/anie.201503983. PMID:26136396[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

See Also

References

  1. Bahl CD, Hvorecny KL, Bomberger JM, Stanton BA, Hammock BD, Morisseau C, Madden DR. Inhibiting an epoxide hydrolase virulence factor from Pseudomonas aeruginosa protects CFTR. Angew Chem Int Ed Engl. 2015 Jul 1. doi: 10.1002/anie.201503983. PMID:26136396 doi:http://dx.doi.org/10.1002/anie.201503983

4dln, resolution 1.55Å

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OCA