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-Structure paper
タイトル | Substrate binding and inhibition of the anion exchanger 1 transporter. |
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ジャーナル・号・ページ | Nat Struct Mol Biol, Vol. 30, Issue 10, Page 1495-1504, Year 2023 |
掲載日 | 2023年9月7日 |
著者 | Michael J Capper / Shifan Yang / Alexander C Stone / Sezen Vatansever / Gregory Zilberg / Yamuna Kalyani Mathiharan / Raul Habib / Keino Hutchinson / Yihan Zhao / Avner Schlessinger / Mihaly Mezei / Roman Osman / Bin Zhang / Daniel Wacker / |
PubMed 要旨 | Anion exchanger 1 (AE1), a member of the solute carrier (SLC) family, is the primary bicarbonate transporter in erythrocytes, regulating pH levels and CO transport between lungs and tissues. Previous ...Anion exchanger 1 (AE1), a member of the solute carrier (SLC) family, is the primary bicarbonate transporter in erythrocytes, regulating pH levels and CO transport between lungs and tissues. Previous studies characterized its role in erythrocyte structure and provided insight into transport regulation. However, key questions remain regarding substrate binding and transport, mechanisms of drug inhibition and modulation by membrane components. Here we present seven cryo-EM structures in apo, bicarbonate-bound and inhibitor-bound states. These, combined with uptake and computational studies, reveal important molecular features of substrate recognition and transport, and illuminate sterol binding sites, to elucidate distinct inhibitory mechanisms of research chemicals and prescription drugs. We further probe the substrate binding site via structure-based ligand screening, identifying an AE1 inhibitor. Together, our findings provide insight into mechanisms of solute carrier transport and inhibition. |
リンク | Nat Struct Mol Biol / PubMed:37679563 / PubMed Central |
手法 | EM (単粒子) |
解像度 | 2.95 - 3.37 Å |
構造データ | EMDB-26165, PDB-7ty4: EMDB-26167, PDB-7ty6: EMDB-26168, PDB-7ty7: EMDB-26169, PDB-7ty8: EMDB-26171, PDB-7tya: EMDB-41081, PDB-8t6u: EMDB-41082, PDB-8t6v: |
化合物 | ChemComp-CLR: ChemComp-PC1: ChemComp-Y01: ChemComp-HOH: ChemComp-4DS: ChemComp-BCT: ChemComp-NFL: ChemComp-H9F: |
由来 |
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キーワード | TRANSPORT PROTEIN / Transmembrane |