+
データを開く
-
基本情報
登録情報 | ![]() | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
タイトル | CryoEM structure of P-Glycoprotein in inward facing 1 state under continuous turnover conditions with verapamil | |||||||||
![]() | CryoEM structure of P-Glycoprotein in inward facing 1 state under continuous turnover conditions with verapamil | |||||||||
![]() |
| |||||||||
![]() | multidrug resistance / ABC transporter / membrane protein / transporter / TRANSPORT PROTEIN | |||||||||
機能・相同性 | ![]() carboxylic acid transmembrane transport / carboxylic acid transmembrane transporter activity / terpenoid transport / ceramide floppase activity / ceramide translocation / floppase activity / Abacavir transmembrane transport / external side of apical plasma membrane / phosphatidylethanolamine flippase activity / phosphatidylcholine floppase activity ...carboxylic acid transmembrane transport / carboxylic acid transmembrane transporter activity / terpenoid transport / ceramide floppase activity / ceramide translocation / floppase activity / Abacavir transmembrane transport / external side of apical plasma membrane / phosphatidylethanolamine flippase activity / phosphatidylcholine floppase activity / Atorvastatin ADME / xenobiotic transport across blood-brain barrier / xenobiotic detoxification by transmembrane export across the plasma membrane / transepithelial transport / export across plasma membrane / P-type phospholipid transporter / ABC-type xenobiotic transporter / ABC-type xenobiotic transporter activity / phospholipid translocation / Prednisone ADME / efflux transmembrane transporter activity / transmembrane transporter activity / xenobiotic transmembrane transporter activity / ATPase-coupled transmembrane transporter activity / transport across blood-brain barrier / xenobiotic metabolic process / regulation of chloride transport / stem cell proliferation / ABC-family proteins mediated transport / transmembrane transport / G2/M transition of mitotic cell cycle / apical plasma membrane / response to xenobiotic stimulus / ubiquitin protein ligase binding / cell surface / ATP hydrolysis activity / extracellular exosome / ATP binding / membrane / plasma membrane / cytoplasm 類似検索 - 分子機能 | |||||||||
生物種 | ![]() | |||||||||
手法 | 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 4.0 Å | |||||||||
![]() | Culbertson A / Liao M | |||||||||
資金援助 | ![]()
| |||||||||
![]() | ![]() タイトル: Cryo-EM of human P-glycoprotein reveals an intermediate occluded conformation during active drug transport. 著者: Alan T Culbertson / Maofu Liao / ![]() ![]() 要旨: P-glycoprotein (Pgp) is an important human multidrug transporter that contributes to pharmacokinetics and multidrug resistance. Despite decades of study, the conformation transition cycle of Pgp ...P-glycoprotein (Pgp) is an important human multidrug transporter that contributes to pharmacokinetics and multidrug resistance. Despite decades of study, the conformation transition cycle of Pgp undergoing active drug transport is not defined, thus the precise relevance of all available Pgp structures to uninterrupted multidrug transport remains unclear. Here, we use cryo-EM of membrane-embedded human Pgp under continuous turnover conditions to analyze the conformational ensembles of Pgp transporting distinct substrates. These results delineate multiple conformations including inward-facing and closed conformations, highlighting the occluded conformation as a critical intermediate state between transporter closure and substrate release. A combination of structural, functional, and computational studies reveals the transmembrane helices 4 and 10 undergoing drastic rearrangement to coordinate substrate binding, occlusion, and release, and identifies a peripheral site involved in substrate capture and Pgp inhibition. Together, our results provide a set of snapshots of Pgp undergoing continuous drug transport, unveiling the intricate interplay between transporter dynamics and drug movement, and shed light on the mechanism of polyspecificity. | |||||||||
履歴 |
|
-
構造の表示
添付画像 |
---|
-
ダウンロードとリンク
-EMDBアーカイブ
マップデータ | ![]() | 24.5 MB | ![]() | |
---|---|---|---|---|
ヘッダ (付随情報) | ![]() ![]() | 19 KB 19 KB | 表示 表示 | ![]() |
画像 | ![]() | 78.9 KB | ||
Filedesc metadata | ![]() | 6.7 KB | ||
その他 | ![]() ![]() | 20.6 MB 20.6 MB | ||
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-検証レポート
文書・要旨 | ![]() | 942.1 KB | 表示 | ![]() |
---|---|---|---|---|
文書・詳細版 | ![]() | 941.6 KB | 表示 | |
XML形式データ | ![]() | 10.4 KB | 表示 | |
CIF形式データ | ![]() | 12.2 KB | 表示 | |
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-関連構造データ
関連構造データ | ![]() 8sb7MC ![]() 8gmgC ![]() 8gmjC ![]() 8sa0C ![]() 8sa1C ![]() 8sb8C ![]() 8sb9C ![]() 8sbaC M: このマップから作成された原子モデル C: 同じ文献を引用 ( |
---|---|
類似構造データ | 類似検索 - 機能・相同性 ![]() |
-
リンク
EMDBのページ | ![]() ![]() |
---|---|
「今月の分子」の関連する項目 |
-
マップ
ファイル | ![]() | ||||||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
注釈 | CryoEM structure of P-Glycoprotein in inward facing 1 state under continuous turnover conditions with verapamil | ||||||||||||||||||||||||||||||||||||
投影像・断面図 | 画像のコントロール
画像は Spider により作成 | ||||||||||||||||||||||||||||||||||||
ボクセルのサイズ | X=Y=Z: 1.06 Å | ||||||||||||||||||||||||||||||||||||
密度 |
| ||||||||||||||||||||||||||||||||||||
対称性 | 空間群: 1 | ||||||||||||||||||||||||||||||||||||
詳細 | EMDB XML:
|
-添付データ
-ハーフマップ: CryoEM structure of P-Glycoprotein in inward facing 1...
ファイル | emd_40292_half_map_1.map | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
注釈 | CryoEM structure of P-Glycoprotein in inward facing 1 state under continuous turnover conditions with verapamil | ||||||||||||
投影像・断面図 |
| ||||||||||||
密度ヒストグラム |
-ハーフマップ: CryoEM structure of P-Glycoprotein in inward facing 1...
ファイル | emd_40292_half_map_2.map | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
注釈 | CryoEM structure of P-Glycoprotein in inward facing 1 state under continuous turnover conditions with verapamil | ||||||||||||
投影像・断面図 |
| ||||||||||||
密度ヒストグラム |
-
試料の構成要素
-全体 : CryoEM structure of P-Glycoprotein in inward facing 1 state under...
全体 | 名称: CryoEM structure of P-Glycoprotein in inward facing 1 state under continuous turnover conditions with verapamil |
---|---|
要素 |
|
-超分子 #1: CryoEM structure of P-Glycoprotein in inward facing 1 state under...
超分子 | 名称: CryoEM structure of P-Glycoprotein in inward facing 1 state under continuous turnover conditions with verapamil タイプ: complex / ID: 1 / 親要素: 0 / 含まれる分子: #1 |
---|---|
由来(天然) | 生物種: ![]() |
-分子 #1: ATP-dependent translocase ABCB1
分子 | 名称: ATP-dependent translocase ABCB1 / タイプ: protein_or_peptide / ID: 1 / コピー数: 1 / 光学異性体: LEVO / EC番号: ABC-type xenobiotic transporter |
---|---|
由来(天然) | 生物種: ![]() |
分子量 | 理論値: 141.644781 KDa |
組換発現 | 生物種: ![]() |
配列 | 文字列: MDLEGDRNGG AKKKNFFKLN NKSEKDKKEK KPTVSVFSMF RYSNWLDKLY MVVGTLAAII HGAGLPLMML VFGEMTDIFA NAGNLEDLM SNITNRSDIN DTGFFMNLEE DMTRYAYYYS GIGAGVLVAA YIQVSFWCLA AGRQIHKIRK QFFHAIMRQE I GWFDVHDV ...文字列: MDLEGDRNGG AKKKNFFKLN NKSEKDKKEK KPTVSVFSMF RYSNWLDKLY MVVGTLAAII HGAGLPLMML VFGEMTDIFA NAGNLEDLM SNITNRSDIN DTGFFMNLEE DMTRYAYYYS GIGAGVLVAA YIQVSFWCLA AGRQIHKIRK QFFHAIMRQE I GWFDVHDV GELNTRLTDD VSKINEGIGD KIGMFFQSMA TFFTGFIVGF TRGWKLTLVI LAISPVLGLS AAVWAKILSS FT DKELLAY AKAGAVAEEV LAAIRTVIAF GGQKKELERY NKNLEEAKRI GIKKAITANI SIGAAFLLIY ASYALAFWYG TTL VLSGEY SIGQVLTVFF SVLIGAFSVG QASPSIEAFA NARGAAYEIF KIIDNKPSID SYSKSGHKPD NIKGNLEFRN VHFS YPSRK EVKILKGLNL KVQSGQTVAL VGNSGCGKST TVQLMQRLYD PTEGMVSVDG QDIRTINVRF LREIIGVVSQ EPVLF ATTI AENIRYGREN VTMDEIEKAV KEANAYDFIM KLPHKFDTLV GERGAQLSGG QKQRIAIARA LVRNPKILLL DEATSA LDT ESEAVVQVAL DKARKGRTTI VIAHRLSTVR NADVIAGFDD GVIVEKGNHD ELMKEKGIYF KLVTMQTAGN EVELENA AD ESKSEIDALE MSSNDSRSSL IRKRSTRRSV RGSQAQDRKL STKEALDESI PPVSFWRIMK LNLTEWPYFV VGVFCAII N GGLQPAFAII FSKIIGVFTR IDDPETKRQN SNLFSLLFLA LGIISFITFF LQGFTFGKAG EILTKRLRYM VFRSMLRQD VSWFDDPKNT TGALTTRLAN DAAQVKGAIG SRLAVITQNI ANLGTGIIIS FIYGWQLTLL LLAIVPIIAI AGVVEMKMLS GQALKDKKE LEGSGKIATE AIENFRTVVS LTQEQKFEHM YAQSLQVPYR NSLRKAHIFG ITFSFTQAMM YFSYAGCFRF G AYLVAHKL MSFEDVLLVF SAVVFGAMAV GQVSSFAPDY AKAKISAAHI IMIIEKTPLI DSYSTEGLMP NTLEGNVTFG EV VFNYPTR PDIPVLQGLS LEVKKGQTLA LVGSSGCGKS TVVQLLERFY DPLAGKVLLD GKEIKRLNVQ WLRAHLGIVS QEP ILFDCS IAENIAYGDN SRVVSQEEIV RAAKEANIHA FIESLPNKYS TKVGDKGTQL SGGQKQRIAI ARALVRQPHI LLLD EATSA LDTESEKVVQ EALDKAREGR TCIVIAHRLS TIQNADLIVV FQNGRVKEHG THQQLLAQKG IYFSMVSVQA GTKRQ UniProtKB: ATP-dependent translocase ABCB1 |
-分子 #2: ADENOSINE-5'-TRIPHOSPHATE
分子 | 名称: ADENOSINE-5'-TRIPHOSPHATE / タイプ: ligand / ID: 2 / コピー数: 2 / 式: ATP |
---|---|
分子量 | 理論値: 507.181 Da |
Chemical component information | ![]() ChemComp-ATP: |
-分子 #3: MAGNESIUM ION
分子 | 名称: MAGNESIUM ION / タイプ: ligand / ID: 3 / コピー数: 2 / 式: MG |
---|---|
分子量 | 理論値: 24.305 Da |
-分子 #4: Dexverapamil
分子 | 名称: Dexverapamil / タイプ: ligand / ID: 4 / コピー数: 1 / 式: I6H |
---|---|
分子量 | 理論値: 454.602 Da |
Chemical component information | ![]() ChemComp-I6H: |
-実験情報
-構造解析
手法 | クライオ電子顕微鏡法 |
---|---|
![]() | 単粒子再構成法 |
試料の集合状態 | particle |
-
試料調製
緩衝液 | pH: 7.4 構成要素:
| ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
凍結 | 凍結剤: ETHANE |
-
電子顕微鏡法
顕微鏡 | TFS KRIOS |
---|---|
撮影 | フィルム・検出器のモデル: GATAN K3 BIOQUANTUM (6k x 4k) 撮影したグリッド数: 2 / 実像数: 11891 / 平均電子線量: 52.0 e/Å2 |
電子線 | 加速電圧: 300 kV / 電子線源: ![]() |
電子光学系 | 照射モード: FLOOD BEAM / 撮影モード: BRIGHT FIELD / Cs: 2.7 mm / 最大 デフォーカス(公称値): 2.5 µm / 最小 デフォーカス(公称値): 1.0 µm / 倍率(公称値): 81000 |
実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |