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| Title | High throughput cryo-EM provides structural understanding for modulators of the lysosomal ion channel TRPML1. |
|---|---|
| Journal, issue, pages | Structure, Vol. 33, Issue 8, Page 1374-11385.e7, Year 2025 |
| Publish date | Aug 7, 2025 |
Authors | Judith Reeks / Pravin Mahajan / Mellissa Clark / Suzanna R Cowan / Elena Di Daniel / Christopher P Earl / Samantha Fisher / Rhian S Holvey / Scott M Jackson / Emyr Lloyd-Evans / Carmine M Morgillo / Paul N Mortenson / Marc O'Reilly / Caroline J Richardson / Patrick Schöpf / Daniel M Tams / Helen Waller-Evans / Simon E Ward / Stuart Whibley / Pamela A Williams / Christopher N Johnson / ![]() |
| 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 ...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. |
External links | Structure / PubMed:40532704 |
| Methods | EM (single particle) |
| Resolution | 2.1 - 2.4 Å |
| Structure data | EMDB-52210, PDB-9hj6: EMDB-52211, PDB-9hj8: EMDB-52242, PDB-9hl3: EMDB-52243, PDB-9hl4: EMDB-52245, PDB-9hl6: EMDB-52246, PDB-9hl8: EMDB-52248, PDB-9hla: EMDB-52249, PDB-9hlb: EMDB-52250, PDB-9hlc: EMDB-52251, PDB-9hld: |
| Chemicals | ![]() ChemComp-EUJ: ![]() PDB-1ivc: ![]() ChemComp-HEX: ![]() ChemComp-R16: ![]() ChemComp-OCT: ![]() ChemComp-HOH: ![]() PDB-1ivd: ![]() ChemComp-PC1: ![]() ChemComp-D10: ![]() ChemComp-D12: ![]() PDB-1ivz: ![]() PDB-1iv0: ![]() ChemComp-LNK: ![]() PDB-1iv1: ![]() PDB-1iv2: ![]() ChemComp-PLC: ![]() PDB-1iv3: ![]() ChemComp-8K6: ![]() PDB-1iv4: ![]() PDB-1iv5: ![]() PDB-1iv6: |
| Source |
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Keywords | MEMBRANE PROTEIN / Ion channel |
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