- EMDB-19440: Cryo-EM structure of human NTCP-Bulevirtide complex -
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基本情報
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データベース: EMDB / ID: EMD-19440
タイトル
Cryo-EM structure of human NTCP-Bulevirtide complex
マップデータ
試料
複合体: Structure of Bulevirtide-bound human NTCP in complex with Fab and nanobody
タンパク質・ペプチド: Sodium/bile acid cotransporter
タンパク質・ペプチド: Heavy chain of Fab3
タンパク質・ペプチド: Light chain of Fab3
タンパク質・ペプチド: Fab-specific nanobody
タンパク質・ペプチド: Polymerase
リガンド: N-tetradecanoylglycine
リガンド: water
キーワード
Hepatitis B/D virus receptor / bile salt transporter / drugs / inhibitor / TRANSPORT PROTEIN
機能・相同性
機能・相同性情報
bile acid:sodium symporter activity / membrane fusion involved in viral entry into host cell / bile acid transmembrane transporter activity / bile acid and bile salt transport / Recycling of bile acids and salts / response to nutrient levels / : / response to estrogen / cellular response to xenobiotic stimulus / virus receptor activity ...bile acid:sodium symporter activity / membrane fusion involved in viral entry into host cell / bile acid transmembrane transporter activity / bile acid and bile salt transport / Recycling of bile acids and salts / response to nutrient levels / : / response to estrogen / cellular response to xenobiotic stimulus / virus receptor activity / basolateral plasma membrane / response to ethanol / symbiont entry into host cell / virion attachment to host cell / virion membrane / plasma membrane 類似検索 - 分子機能
Large envelope protein S / Major surface antigen from hepadnavirus / Bile acid:sodium symporter/arsenical resistance protein Acr3 / Bile acid:sodium symporter / Sodium Bile acid symporter family / Sodium/solute symporter superfamily 類似検索 - ドメイン・相同性
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)
GM117372
米国
引用
ジャーナル: Nat Commun / 年: 2024 タイトル: Structure of antiviral drug bulevirtide bound to hepatitis B and D virus receptor protein NTCP. 著者: Hongtao Liu / Dariusz Zakrzewicz / Kamil Nosol / Rossitza N Irobalieva / Somnath Mukherjee / Rose Bang-Sørensen / Nora Goldmann / Sebastian Kunz / Lorenzo Rossi / Anthony A Kossiakoff / ...著者: Hongtao Liu / Dariusz Zakrzewicz / Kamil Nosol / Rossitza N Irobalieva / Somnath Mukherjee / Rose Bang-Sørensen / Nora Goldmann / Sebastian Kunz / Lorenzo Rossi / Anthony A Kossiakoff / Stephan Urban / Dieter Glebe / Joachim Geyer / Kaspar P Locher / 要旨: Cellular entry of the hepatitis B and D viruses (HBV/HDV) requires binding of the viral surface polypeptide preS1 to the hepatobiliary transporter Na-taurocholate co-transporting polypeptide (NTCP). ...Cellular entry of the hepatitis B and D viruses (HBV/HDV) requires binding of the viral surface polypeptide preS1 to the hepatobiliary transporter Na-taurocholate co-transporting polypeptide (NTCP). This interaction can be blocked by bulevirtide (BLV, formerly Myrcludex B), a preS1 derivative and approved drug for treating HDV infection. Here, to elucidate the basis of this inhibitory function, we determined a cryo-EM structure of BLV-bound human NTCP. BLV forms two domains, a plug lodged in the bile salt transport tunnel of NTCP and a string that covers the receptor's extracellular surface. The N-terminally attached myristoyl group of BLV interacts with the lipid-exposed surface of NTCP. Our structure reveals how BLV inhibits bile salt transport, rationalizes NTCP mutations that decrease the risk of HBV/HDV infection, and provides a basis for understanding the host specificity of HBV/HDV. Our results provide opportunities for structure-guided development of inhibitors that target HBV/HDV docking to NTCP.