Fractional Ca(2+) currents through TRP and TRPL channels in Drosophila photoreceptors.

Abstract excerpt

Light responses in Drosophila photoreceptors are mediated by two Ca(2+) permeable cation channels, transient receptor potential (TRP) and TRP-like (TRPL). Although Ca(2+) influx via these channels is critical for amplification, inactivation, and light adaptation, the fractional contribution of Ca(2+) to the currents (Pf) has not been measured. We describe a slow (τ ∼ 350 ms) tail current in voltage-clamped light...

Topics

Share this publication in a Topic to start or enrich a Post.

• Share to Action Potentials
• Share to Antiporters
• Share to Calcium