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基本情報
登録情報 | ![]() | |||||||||
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タイトル | cryo-EM structure of human NaV1.3/beta1/beta2-bulleyaconitineA | |||||||||
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機能・相同性 | ![]() corticospinal neuron axon guidance / positive regulation of voltage-gated sodium channel activity / response to pyrethroid / voltage-gated sodium channel activity involved in Purkinje myocyte action potential / voltage-gated sodium channel activity involved in cardiac muscle cell action potential / regulation of sodium ion transmembrane transporter activity / voltage-gated potassium channel activity involved in ventricular cardiac muscle cell action potential repolarization / membrane depolarization during Purkinje myocyte cell action potential / regulation of atrial cardiac muscle cell membrane depolarization / cardiac conduction ...corticospinal neuron axon guidance / positive regulation of voltage-gated sodium channel activity / response to pyrethroid / voltage-gated sodium channel activity involved in Purkinje myocyte action potential / voltage-gated sodium channel activity involved in cardiac muscle cell action potential / regulation of sodium ion transmembrane transporter activity / voltage-gated potassium channel activity involved in ventricular cardiac muscle cell action potential repolarization / membrane depolarization during Purkinje myocyte cell action potential / regulation of atrial cardiac muscle cell membrane depolarization / cardiac conduction / voltage-gated monoatomic ion channel activity / membrane depolarization during cardiac muscle cell action potential / positive regulation of sodium ion transport / node of Ranvier / membrane depolarization during action potential / cardiac muscle cell action potential involved in contraction / regulation of ventricular cardiac muscle cell membrane repolarization / voltage-gated sodium channel complex / sodium channel inhibitor activity / regulation of monoatomic ion transmembrane transport / locomotion / neuronal action potential propagation / Interaction between L1 and Ankyrins / voltage-gated sodium channel activity / sodium ion transport / Phase 0 - rapid depolarisation / regulation of heart rate by cardiac conduction / membrane depolarization / intercalated disc / sarcoplasm / neuronal action potential / sodium ion transmembrane transport / sodium channel regulator activity / cardiac muscle contraction / T-tubule / axon guidance / Sensory perception of sweet, bitter, and umami (glutamate) taste / positive regulation of neuron projection development / nervous system development / gene expression / response to heat / chemical synaptic transmission / perikaryon / transmembrane transporter binding / cell adhesion / axon / synapse / extracellular region / plasma membrane 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: 3.3 Å | |||||||||
![]() | Jiang D / Li X | |||||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Structural basis for modulation of human Na1.3 by clinical drug and selective antagonist. 著者: Xiaojing Li / Feng Xu / Hao Xu / Shuli Zhang / Yiwei Gao / Hongwei Zhang / Yanli Dong / Yanchun Zheng / Bei Yang / Jianyuan Sun / Xuejun Cai Zhang / Yan Zhao / Daohua Jiang / ![]() ![]() 要旨: Voltage-gated sodium (Na) channels play fundamental roles in initiating and propagating action potentials. Na1.3 is involved in numerous physiological processes including neuronal development, ...Voltage-gated sodium (Na) channels play fundamental roles in initiating and propagating action potentials. Na1.3 is involved in numerous physiological processes including neuronal development, hormone secretion and pain perception. Here we report structures of human Na1.3/β1/β2 in complex with clinically-used drug bulleyaconitine A and selective antagonist ICA121431. Bulleyaconitine A is located around domain I-II fenestration, providing the detailed view of the site-2 neurotoxin binding site. It partially blocks ion path and expands the pore-lining helices, elucidating how the bulleyaconitine A reduces peak amplitude but improves channel open probability. In contrast, ICA121431 preferentially binds to activated domain IV voltage-sensor, consequently strengthens the Ile-Phe-Met motif binding to its receptor site, stabilizes the channel in inactivated state, revealing an allosterically inhibitory mechanism of Na channels. Our results provide structural details of distinct small-molecular modulators binding sites, elucidate molecular mechanisms of their action on Na channels and pave a way for subtype-selective therapeutic development. | |||||||||
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-関連構造データ
関連構造データ | ![]() 7w77MC ![]() 7w7fC 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 ( |
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類似構造データ | 類似検索 - 機能・相同性 ![]() |
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リンク
EMDBのページ | ![]() ![]() |
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「今月の分子」の関連する項目 |
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マップ
ファイル | ![]() | ||||||||||||||||||||
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ボクセルのサイズ | X=Y=Z: 1.04 Å | ||||||||||||||||||||
密度 |
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対称性 | 空間群: 1 | ||||||||||||||||||||
詳細 | EMDB XML:
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-添付データ
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試料の構成要素
-全体 : Sodium channel complex of type 3 subunit alpha with auxiliary sub...
全体 | 名称: Sodium channel complex of type 3 subunit alpha with auxiliary subunits bata-1 and bata-2 |
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要素 |
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-超分子 #1: Sodium channel complex of type 3 subunit alpha with auxiliary sub...
超分子 | 名称: Sodium channel complex of type 3 subunit alpha with auxiliary subunits bata-1 and bata-2 タイプ: complex / ID: 1 / 親要素: 0 / 含まれる分子: #1-#3 |
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由来(天然) | 生物種: ![]() |
組換発現 | 生物種: ![]() |
-分子 #1: Sodium channel subunit beta-1
分子 | 名称: Sodium channel subunit beta-1 / タイプ: protein_or_peptide / ID: 1 / コピー数: 1 / 光学異性体: LEVO |
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由来(天然) | 生物種: ![]() |
分子量 | 理論値: 24.732115 KDa |
組換発現 | 生物種: ![]() |
配列 | 文字列: MGRLLALVVG AALVSSACGG CVEVDSETEA VYGMTFKILC ISCKRRSETN AETFTEWTFR QKGTEEFVKI LRYENEVLQL EEDERFEGR VVWNGSRGTK DLQDLSIFIT NVTYNHSGDY ECHVYRLLFF ENYEHNTSVV KKIHIEVVDK ANRDMASIVS E IMMYVLIV ...文字列: MGRLLALVVG AALVSSACGG CVEVDSETEA VYGMTFKILC ISCKRRSETN AETFTEWTFR QKGTEEFVKI LRYENEVLQL EEDERFEGR VVWNGSRGTK DLQDLSIFIT NVTYNHSGDY ECHVYRLLFF ENYEHNTSVV KKIHIEVVDK ANRDMASIVS E IMMYVLIV VLTIWLVAEM IYCYKKIAAA TETAAQENAS EYLAITSESK ENCTGVQVAE |
-分子 #2: Sodium channel subunit beta-2
分子 | 名称: Sodium channel subunit beta-2 / タイプ: protein_or_peptide / ID: 2 / コピー数: 1 / 光学異性体: LEVO |
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由来(天然) | 生物種: ![]() |
分子量 | 理論値: 24.355859 KDa |
組換発現 | 生物種: ![]() |
配列 | 文字列: MHRDAWLPRP AFSLTGLSLF FSLVPPGRSM EVTVPATLNV LNGSDARLPC TFNSCYTVNH KQFSLNWTYQ ECNNCSEEMF LQFRMKIIN LKLERFQDRV EFSGNPSKYD VSVMLRNVQP EDEGIYNCYI MNPPDRHRGH GKIHLQVLME EPPERDSTVA V IVGASVGG ...文字列: MHRDAWLPRP AFSLTGLSLF FSLVPPGRSM EVTVPATLNV LNGSDARLPC TFNSCYTVNH KQFSLNWTYQ ECNNCSEEMF LQFRMKIIN LKLERFQDRV EFSGNPSKYD VSVMLRNVQP EDEGIYNCYI MNPPDRHRGH GKIHLQVLME EPPERDSTVA V IVGASVGG FLAVVILVLM VVKCVRRKKE QKLSTDDLKT EEEGKTDGEG NPDDGAK |
-分子 #3: Sodium channel protein type 3 subunit alpha
分子 | 名称: Sodium channel protein type 3 subunit alpha / タイプ: protein_or_peptide / ID: 3 / コピー数: 1 / 光学異性体: LEVO |
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由来(天然) | 生物種: ![]() |
分子量 | 理論値: 221.036625 KDa |
組換発現 | 生物種: ![]() |
配列 | 文字列: MAQALLVPPG PESFRLFTRE SLAAIEKRAA EEKAKKPKKE QDNDDENKPK PNSDLEAGKN LPFIYGDIPP EMVSEPLEDL DPYYINKKT FIVMNKGKAI FRFSATSALY ILTPLNPVRK IAIKILVHSL FSMLIMCTIL TNCVFMTLSN PPDWTKNVEY T FTGIYTFE ...文字列: MAQALLVPPG PESFRLFTRE SLAAIEKRAA EEKAKKPKKE QDNDDENKPK PNSDLEAGKN LPFIYGDIPP EMVSEPLEDL DPYYINKKT FIVMNKGKAI FRFSATSALY ILTPLNPVRK IAIKILVHSL FSMLIMCTIL TNCVFMTLSN PPDWTKNVEY T FTGIYTFE SLIKILARGF CLEDFTFLRD PWNWLDFSVI VMAYVTEFVS LGNVSALRTF RVLRALKTIS VIPGLKTIVG AL IQSVKKL SDVMILTVFC LSVFALIGLQ LFMGNLRNKC LQWPPSDSAF ETNTTSYFNG TMDSNGTFVN VTMSTFNWKD YIG DDSHFY VLDGQKDPLL CGNGSDAGQC PEGYICVKAG RNPNYGYTSF DTFSWAFLSL FRLMTQDYWE NLYQLTLRAA GKTY MIFFV LVIFLGSFYL VNLILAVVAM AYEEQNQATL EEAEQKEAEF QQMLEQLKKQ QEEAQAVAAA SAASRDFSGI GGLGE LLES SSEASKLSSK SAKEWRNRRK KRRQREHLEG NNKGERDSFP KSESEDSVKR SSFLFSMDGN RLTSDKKFCS PHQSLL SIR GSLFSPRRNS KTSIFSFRGR AKDVGSENDF ADDEHSTFED SESRRDSLFV PHRHGERRNS NVSQASMSSR MVPGLPA NG KMHSTVDCNG VVSLVGGPSA LTSPTGQLPP EGTTTETEVR KRRLSSYQIS MEMLEDSSGR QRAVSIASIL TNTMEELE E SRQKCPPCWY RFANVFLIWD CCDAWLKVKH LVNLIVMDPF VDLAITICIV LNTLFMAMEH YPMTEQFSSV LTVGNLVFT GIFTAEMVLK IIAMDPYYYF QEGWNIFDGI IVSLSLMELG LSNVEGLSVL RSFRLLRVFK LAKSWPTLNM LIKIIGNSVG ALGNLTLVL AIIVFIFAVV GMQLFGKSYK ECVCKINDDC TLPRWHMNDF FHSFLIVFRV LCGEWIETMW DCMEVAGQTM C LIVFMLVM VIGNLVVLNL FLALLLSSFS SDNLAATDDD NEMNNLQIAV GRMQKGIDYV KNKMRECFQK AFFRKPKVIE IH EGNKIDS CMSNNTGIEI SKELNYLRDG NGTTSGVGTG SSVEKYVIDE NDYMSFINNP SLTVTVPIAV GESDFENLNT EEF SSESEL EESKEKLNAT SSSEGSTVDV VLPREGEQAE TEPEEDLKPE ACFTEGCIKK FPFCQVSTEE GKGKIWWNLR KTCY SIVEH NWFETFIVFM ILLSSGALAF EDIYIEQRKT IKTMLEYADK VFTYIFILEM LLKWVAYGFQ TYFTNAWCWL DFLIV DVSL VSLVANALGY SELGAIKSLR TLRALRPLRA LSRFEGMRVV VNALVGAIPS IMNVLLVCLI FWLIFSIMGV NLFAGK FYH CVNMTTGNMF DISDVNNLSD CQALGKQARW KNVKVNFDNV GAGYLALLQV ATFKGWMDIM YAAVDSRDVK LQPVYEE NL YMYLYFVIFI IFGSFFTLNL FIGVIIDNFN QQKKKFGGQD IFMTEEQKKY YNAMKKLGSK KPQKPIPRPA NKFQGMVF D FVTRQVFDIS IMILICLNMV TMMVETDDQG KYMTLVLSRI NLVFIVLFTG EFVLKLVSLR HYYFTIGWNI FDFVVVILS IVGMFLAEMI EKYFVSPTLF RVIRLARIGR ILRLIKGAKG IRTLLFALMM SLPALFNIGL LLFLVMFIYA IFGMSNFAYV KKEAGIDDM FNFETFGNSM ICLFQITTSA GWDGLLAPIL NSAPPDCDPD TIHPGSSVKG DCGNPSVGIF FFVSYIIISF L VVVNMYIA VILENFSVAT EESAEPLSED DFEMFYEVWE KFDPDATQFI EFSKLSDFAA ALDPPLLIAK PNKVQLIAMD LP MVSGDRI HCLDILFAFT KRVLGESGEM DALRIQMEDR FMASNPSKVS YEPITTTLKR KQEEVSAAII QRNFRCYLLK QRL KNISSN YNKEAIKGRI DLPIKQDMII DKLNG |
-分子 #6: 2-acetamido-2-deoxy-beta-D-glucopyranose
分子 | 名称: 2-acetamido-2-deoxy-beta-D-glucopyranose / タイプ: ligand / ID: 6 / コピー数: 5 / 式: NAG |
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分子量 | 理論値: 221.208 Da |
Chemical component information | ![]() ChemComp-NAG: |
-分子 #7: (3beta,14beta,17beta,25R)-3-[4-methoxy-3-(methoxymethyl)butoxy]sp...
分子 | 名称: (3beta,14beta,17beta,25R)-3-[4-methoxy-3-(methoxymethyl)butoxy]spirost-5-en タイプ: ligand / ID: 7 / コピー数: 3 / 式: 9Z9 |
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分子量 | 理論値: 544.805 Da |
Chemical component information | ![]() ChemComp-9Z9: |
-分子 #8: [(2~{R})-1-[2-azanylethoxy(oxidanyl)phosphoryl]oxy-3-hexadecanoyl...
分子 | 名称: [(2~{R})-1-[2-azanylethoxy(oxidanyl)phosphoryl]oxy-3-hexadecanoyloxy-propan-2-yl] (~{Z})-octadec-9-enoate タイプ: ligand / ID: 8 / コピー数: 16 / 式: 6OU |
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分子量 | 理論値: 717.996 Da |
Chemical component information | ![]() ChemComp-6OU: |
-分子 #9: [(1S,2R,3R,4R,5R,6S,8R,9S,13S,16S,17R,18R)-11-ethyl-5-hydroxy-6,1...
分子 | 名称: [(1S,2R,3R,4R,5R,6S,8R,9S,13S,16S,17R,18R)-11-ethyl-5-hydroxy-6,16,18-trimethoxy-4-(4-methoxybenzoyl)-13-(methoxymethyl)-11-azahexacyclo[7.7.2.12,5.01,10.03,8.013,17]nonadecan-8-yl] acetate タイプ: ligand / ID: 9 / コピー数: 1 / 式: 966 |
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分子量 | 理論値: 627.765 Da |
Chemical component information | ![]() ChemComp-966: |
-実験情報
-構造解析
手法 | クライオ電子顕微鏡法 |
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![]() | 単粒子再構成法 |
試料の集合状態 | particle |
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試料調製
緩衝液 | pH: 7.5 |
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凍結 | 凍結剤: ETHANE |
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電子顕微鏡法
顕微鏡 | FEI TITAN KRIOS |
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撮影 | フィルム・検出器のモデル: GATAN K2 SUMMIT (4k x 4k) 平均電子線量: 60.0 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 |
実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |
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画像解析
最終 再構成 | 解像度のタイプ: BY AUTHOR / 解像度: 3.3 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 使用した粒子像数: 1403849 |
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初期 角度割当 | タイプ: RANDOM ASSIGNMENT |
最終 角度割当 | タイプ: MAXIMUM LIKELIHOOD |