SUR1 / KATP / channel / mitiglinide / MEMBRANE PROTEIN
機能・相同性
機能・相同性情報
ATP sensitive Potassium channels / ATP-activated inward rectifier potassium channel activity / Regulation of insulin secretion / Ion homeostasis / inward rectifying potassium channel / sulfonylurea receptor activity / ABC-family protein mediated transport / voltage-gated monoatomic ion channel activity involved in regulation of presynaptic membrane potential / regulation of monoatomic ion transmembrane transport / nervous system process ...ATP sensitive Potassium channels / ATP-activated inward rectifier potassium channel activity / Regulation of insulin secretion / Ion homeostasis / inward rectifying potassium channel / sulfonylurea receptor activity / ABC-family protein mediated transport / voltage-gated monoatomic ion channel activity involved in regulation of presynaptic membrane potential / regulation of monoatomic ion transmembrane transport / nervous system process / ankyrin binding / response to ATP / potassium ion import across plasma membrane / ABC-type transporter activity / potassium ion transport / negative regulation of insulin secretion / glucose metabolic process / transmembrane transporter binding / response to xenobiotic stimulus / ATP hydrolysis activity / protein-containing complex / ATP binding / metal ion binding / plasma membrane 類似検索 - 分子機能
National Natural Science Foundation of China (NSFC)
91957201 and 31870833
中国
引用
ジャーナル: Front Pharmacol / 年: 2022 タイトル: Structural Insights Into the High Selectivity of the Anti-Diabetic Drug Mitiglinide. 著者: Mengmeng Wang / Jing-Xiang Wu / Lei Chen / 要旨: Mitiglinide is a highly selective fast-acting anti-diabetic drug that induces insulin secretion by inhibiting pancreatic K channels. However, how mitiglinide binds K channels remains unknown. Here, ...Mitiglinide is a highly selective fast-acting anti-diabetic drug that induces insulin secretion by inhibiting pancreatic K channels. However, how mitiglinide binds K channels remains unknown. Here, we show the cryo-EM structure of the SUR1 subunit complexed with mitiglinide. The structure reveals that mitiglinide binds inside the common insulin secretagogue-binding site of SUR1, which is surrounded by TM7, TM8, TM16, and TM17. Mitiglinide locks SUR1 in the NBD-separated inward-facing conformation. The detailed structural analysis of the mitiglinide-binding site uncovers the molecular basis of its high selectivity.