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PilY1
- Molecular classification
- Adhesin, Type IV pilus component, Mechanosensor
01
Overview
PilY1 is a multifunctional protein in *Pseudomonas aeruginosa* essential for type IV pili (T4P) assembly and function. It regulates twitching motility, surface adhesion, and host cell interaction. Acting as an adhesin at the pilus tip, PilY1 also functions as a mechanosensor, detecting mechanical forces. It modulates intracellular signaling pathways such as c-di-GMP production, controlling biofilm formation and other surface behaviors. PilY1 contains a vWA-like domain, a β-propeller domain, and an RGD motif for integrin binding, making it a key virulence factor.
02
Mechanism of action
N/A
03
Biological functions
Twitching motility regulationAdhesionMechanosensingBiofilm formation regulationVirulence factor
04
Disease associations
InfectionBiofilm-associated infectionsChronic infections
05
Safety considerations
Targeting PilY1 could disrupt bacterial adhesion and motility, potentially leading to altered biofilm formation or compensatory mechanisms.Developing inhibitors that specifically target PilY1 without affecting host integrin function may be challenging.
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