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-Structure paper
タイトル | Structural mechanisms of TRPM7 activation and inhibition. |
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ジャーナル・号・ページ | Nat Commun, Vol. 14, Issue 1, Page 2639, Year 2023 |
掲載日 | 2023年5月8日 |
著者 | Kirill D Nadezhdin / Leonor Correia / Chamali Narangoda / Dhilon S Patel / Arthur Neuberger / Thomas Gudermann / Maria G Kurnikova / Vladimir Chubanov / Alexander I Sobolevsky / |
PubMed 要旨 | The transient receptor potential channel TRPM7 is a master regulator of the organismal balance of divalent cations that plays an essential role in embryonic development, immune responses, cell ...The transient receptor potential channel TRPM7 is a master regulator of the organismal balance of divalent cations that plays an essential role in embryonic development, immune responses, cell mobility, proliferation, and differentiation. TRPM7 is implicated in neuronal and cardiovascular disorders, tumor progression and has emerged as a new drug target. Here we use cryo-EM, functional analysis, and molecular dynamics simulations to uncover two distinct structural mechanisms of TRPM7 activation by a gain-of-function mutation and by the agonist naltriben, which show different conformational dynamics and domain involvement. We identify a binding site for highly potent and selective inhibitors and show that they act by stabilizing the TRPM7 closed state. The discovered structural mechanisms provide foundations for understanding the molecular basis of TRPM7 channelopathies and drug development. |
リンク | Nat Commun / PubMed:37156763 / PubMed Central |
手法 | EM (単粒子) |
解像度 | 2.17 - 2.99 Å |
構造データ | EMDB-40496, PDB-8si2: EMDB-40497, PDB-8si3: EMDB-40498, PDB-8si4: EMDB-40499, PDB-8si5: EMDB-40500, PDB-8si6: EMDB-40501, PDB-8si7: EMDB-40502, PDB-8si8: EMDB-40504, PDB-8sia: EMDB-40505, PDB-8sib: |
化合物 | ChemComp-POV: ChemComp-CLR: ChemComp-DU0: ChemComp-NA: ChemComp-HOH: ChemComp-CA: ChemComp-ZY8: ChemComp-3FD: ChemComp-6RA: |
由来 |
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キーワード | MEMBRANE PROTEIN / transient receptor potential M family member 7 / TRP / channel / TRPM7 / TRP channels / magnesium channel / N1098Q / open state / agonist / ligand / naltriben / inhibitor / VER155008 / NS8593 |