Cif Toxin Mechanism: Pseudomonas Aeruginosa Hijacking Host Ubiquitin System

Cif (PA2934), a bacterial toxin from Pseudomonas aeruginosa, is the first example of a toxin that regulates a host deubiquitinating enzyme. The data describes how Cif reduces CFTR-mediated chloride secretion in airway cells, contributing to chronic lung infections in diseases like COPD and cystic fibrosis. This research was authored by Jennifer M. Bomberger of Dartmouth College.

Use Cases

• Study bacterial toxin mechanisms based on the described interaction with the host ubiquitin-proteolytic system.
• Model chronic lung infection pathways based on the described inhibition of CFTR-mediated chloride secretion.
• Investigate host-pathogen interactions in cystic fibrosis and COPD based on the described role of outer membrane vesicles.

Strengths

• Focuses on a novel mechanism, being the first example of a bacterial toxin regulating a host deubiquitinating enzyme.
• Describes a specific molecular pathway involving CFTR, G3BP1, and USP10 with clear biological implications.

Limitations

• Row count is unknown, which may limit suitability assessment.
• Column-level documentation is absent; field semantics must be inferred after download.
• Last update date is unknown; freshness unverified.

Provenance

Source

Jennifer M. Bomberger, Dartmouth College

Collection Method

Likely contains experimental research data from the described biological study.