Mechanistic study reveals that myosin-dependent nanocluster size directly alters gene expression, indicating that nanoscale architecture tunes cellular signaling.
Key Points
To determine how nanoscale protein cluster size is actively regulated at the plasma membrane and evaluate whether structural changes at this scale directly alter cellular function.
Utilized the prototypical membrane scaffold A-kinase anchoring protein 79 (AKAP79) as an experimental model system.
Integrated homo-FRET imaging, super-resolution microscopy, computational modeling, and molecular biology techniques to evaluate nanocluster dynamics and downstream signaling.
AKAP79 nanoclusters dynamically remodel and adjust size in response to signaling pathway activation through myosin-dependent mechanisms.
A modest increase of approximately 28.9% in nanocluster diameter significantly altered downstream gene expression and overall cellular behavior.