Download MendeleyHigh throughput cryo-EM provides structural understanding for modulators of the lysosomal ion channel TRPML1.
Reeks, J., Mahajan, P., Clark, M., Cowan, S.R., Di Daniel, E., Earl, C.P., Fisher, S., Holvey, R.S., Jackson, S.M., Lloyd-Evans, E., Morgillo, C.M., Mortenson, P.N., O'Reilly, M., Richardson, C.J., Schopf, P., Tams, D.M., Waller-Evans, H., Ward, S.E., Whibley, S., Williams, P.A., Johnson, C.N.(2025) Structure 33: 1374-1385.e7
- PubMed: 40532704
- DOI: https://doi.org/10.1016/j.str.2025.05.014
- Primary Citation of Related Structures:
9HJ6, 9HJ8, 9HL3, 9HL4, 9HL6, 9HL8, 9HLA, 9HLB, 9HLC, 9HLD - PubMed Abstract:
Access to high-resolution structural data for protein-ligand complexes is a prerequisite for structure-based medicinal chemistry, where the ability to iterate cycles of design-structure-redesign is highly desirable. For proteins refractory to X-ray crystallography, such as integral membrane proteins, enablement of high throughput structure determination by cryoelectron microscopy (cryo-EM) has the potential to be transformational for structure-based design. We have applied such an approach to the lysosomal ion channel transient receptor potential mucolipin 1 (TRPML1) in complex with ten chemically diverse modulators, both agonists and antagonists. The resulting depth of high-resolution structural data generated provides important insights into protein-ligand structure-function relationships, including mechanistic understanding of ligand-induced channel pore opening and closing. Moreover, the knowledge gained has the potential to support iterative design cycles toward improved modulators of this important biological target.
- Astex Pharmaceuticals, 436 Cambridge Science Park, Milton Road, Cambridge CB4 0QA, UK.
Organizational Affiliation:
