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-Structure paper
| タイトル | Doxorubicin Recognition and Transport by the MATE Multidrug Transporter NorM From Vibrio cholerae. |
|---|---|
| ジャーナル・号・ページ | J Mol Biol, Vol. 438, Issue 2, Page 169549, Year 2026 |
| 掲載日 | 2025年11月17日 |
著者 | Pei-Yu Hsieh / Ksenija Romane / Julia Kowal / Kaspar P Locher / Hendrik W van Veen / ![]() |
| PubMed 要旨 | Multidrug and toxic compound extrusion (MATE) transport proteins contribute to multidrug resistance in human pathogens by extruding various cytotoxic compounds from the cellular interior. Despite ...Multidrug and toxic compound extrusion (MATE) transport proteins contribute to multidrug resistance in human pathogens by extruding various cytotoxic compounds from the cellular interior. Despite their importance across all domains of life, the specificities and mechanisms of substrate transport of these proteins remain poorly understood due to limited structural and functional information. Here, we determined the cryo-electron microscopy structure of NorM from Vibrio cholerae (NorM-VC) in complex with the anthracycline antibiotic doxorubicin, using the NabFab approach. The structure reveals that the doxorubicin-binding pocket is located halfway through the membrane, within the C-lobe of the protein. Functional studies targeting the doxorubicin-interacting residues validated the binding pocket and enabled detailed analysis of the doxorubicin transport reaction. Our findings indicate doxorubicin binding within a multisite binding chamber engaged in a general transport mechanism for a variety of substrates. |
リンク | J Mol Biol / PubMed:41260293 |
| 手法 | EM (単粒子) |
| 解像度 | 3.1 Å |
| 構造データ | EMDB-54220, PDB-9rsj: |
| 化合物 | ![]() ChemComp-DM2: |
| 由来 |
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キーワード | TRANSPORT PROTEIN / NabFab / substrate / multidrug transporter |
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