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-Structure paper
タイトル | Molecular basis of inhibition of the amino acid transporter BAT1 (SLC6A19). |
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ジャーナル・号・ページ | Nat Commun, Vol. 15, Issue 1, Page 7224, Year 2024 |
掲載日 | 2024年8月22日 |
著者 | Junyang Xu / Ziwei Hu / Lu Dai / Aditya Yadav / Yashan Jiang / Angelika Bröer / Michael G Gardiner / Malcolm McLeod / Renhong Yan / Stefan Bröer / |
PubMed 要旨 | The epithelial neutral amino acid transporter BAT1 (SLC6A19) is the major transporter for the absorption of neutral amino acids in the intestine and their reabsorption in the kidney. Mouse models ...The epithelial neutral amino acid transporter BAT1 (SLC6A19) is the major transporter for the absorption of neutral amino acids in the intestine and their reabsorption in the kidney. Mouse models have demonstrated that lack of BAT1 can normalize elevated plasma amino acids in rare disorders of amino acid metabolism such as phenylketonuria and urea-cycle disorders, implying a pharmacological approach for their treatment. Here we employ a medicinal chemistry approach to generate BAT1 inhibitors with IC-values of 31-90 nM. High-resolution cryo-EM structures of BAT1 in the presence of two compounds from this series identified an allosteric binding site in the vestibule of the transporter. Mechanistically, binding of these inhibitors prevents a movement of TM1 and TM6 that is required for the transporter to make a conformational change from an outward open state to the occluded state. |
リンク | Nat Commun / PubMed:39174516 / PubMed Central |
手法 | EM (単粒子) |
解像度 | 3.18 - 3.2 Å |
構造データ | EMDB-37427, PDB-8wby: EMDB-37428, PDB-8wbz: |
化合物 |
ChemComp-WM8: ChemComp-NAG:
ChemComp-XF0: |
由来 |
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キーワード | PROTEIN TRANSPORT/HYDROLASE / Transporter / Complex / Inhibitor / PROTEIN TRANSPORT / PROTEIN TRANSPORT-HYDROLASE complex / Inhibitors |