We💙membrane proteins! Using biochem, structural bio & C.elegans to study cell-cell communication, physiology & behavior, pain sensing & more @cornellmolmed
Could not be more exciting to share our latest findings about the mechanism of ATP release via the Pannexin 1 ion channel! Check it out 👉 The C-terminal activating domain promotes pannexin 1 channel opening | PNAS pnas.org/doi/10.1073/pnas.24…
Our structural studies revealed that when exposed, the cytoplasmic domain, dubbed the c-terminal activating domain (CAD) can compete with the N-terminus to occupy a cytosolic pocket, which forces the N-terminus to reorient into the pore.
This study puts forth a mechanism by which c-terminal cleavage liberates the CAD causing the repositioning of the N terminus to promote Panx1 channel opening.
We analyzed the electrostatic free energy of the cytosolic NTD, finding a positively charged region inside the pore that could accumulate negatively charged anions like ATP. In the reoriented NTD conformation this negative region is diminished reducing accumulation of ions there.
Check out our latest paper about glutaminase filament on @NatureComms! In this paper, we used #CryoEM and light scattering to show that the filament formation of glutaminase is coupled with its activity. nature.com/articles/s41467-0…
Kawate lab is en route to #BPS2024! Let’s talk about Pannexins at Toshi’s platform session on Tuesday & @jacqueline_ehr poster presentation on Monday 🤜🤛
The @KawateLab is recruiting new students! Visit kawatelab.org/ to learn more about the research they do in Structure and Molecular Mechanisms, Physiology and Behavior, and Painometer Development.
We had a great time getting to know the incoming @CornellMBG students at the departmental retreat yesterday! We’re recruiting new students to the Kawate Lab in the department of @CornellMolMed. Join us if membrane proteins, C. elegans, or structural biology could be your thing!