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-Structure paper
| タイトル | Structure of mitochondrial pyruvate carrier and its inhibition mechanism. |
|---|---|
| ジャーナル・号・ページ | Nature, Vol. 641, Issue 8061, Page 250-257, Year 2025 |
| 掲載日 | 2025年3月5日 |
著者 | Zheng He / Jianxiu Zhang / Yan Xu / Eve J Fine / Carl-Mikael Suomivuori / Ron O Dror / Liang Feng / ![]() |
| PubMed 要旨 | The mitochondrial pyruvate carrier (MPC) governs the entry of pyruvate-a central metabolite that bridges cytosolic glycolysis with mitochondrial oxidative phosphorylation-into the mitochondrial ...The mitochondrial pyruvate carrier (MPC) governs the entry of pyruvate-a central metabolite that bridges cytosolic glycolysis with mitochondrial oxidative phosphorylation-into the mitochondrial matrix. It thus serves as a pivotal metabolic gatekeeper and has fundamental roles in cellular metabolism. Moreover, MPC is a key target for drugs aimed at managing diabetes, non-alcoholic steatohepatitis and neurodegenerative diseases. However, despite MPC's critical roles in both physiology and medicine, the molecular mechanisms underlying its transport function and how it is inhibited by drugs have remained largely unclear. Here our structural findings on human MPC define the architecture of this vital transporter, delineate its substrate-binding site and translocation pathway, and reveal its major conformational states. Furthermore, we explain the binding and inhibition mechanisms of MPC inhibitors. Our findings provide the molecular basis for understanding MPC's function and pave the way for the development of more-effective therapeutic reagents that target MPC. |
リンク | Nature / PubMed:40044865 / PubMed Central |
| 手法 | EM (単粒子) |
| 解像度 | 2.73 - 3.35 Å |
| 構造データ | EMDB-48441: Cryo-EM structure of membrane transporter with inhibitor G EMDB-48442, PDB-9mnx: EMDB-48443, PDB-9mny: EMDB-48444, PDB-9mnz: EMDB-48445, PDB-9mo0: |
| 化合物 | ![]() PDB-1bm8: ![]() ChemComp-I2R: ![]() ChemComp-PYR: ![]() PDB-1il4: |
| 由来 |
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キーワード | TRANSPORT PROTEIN/IMMUNE SYSTEM/INHIBITOR / Membrane transporter / TRANSPORT PROTEIN-IMMUNE SYSTEM-INHIBITOR complex / TRANSPORT PROTEIN/IMMUNE SYSTEM / TRANSPORT PROTEIN-IMMUNE SYSTEM complex |
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